diff options
author | Nicolas Bornand <nicolas74@gmail.com> | 2014-05-10 18:50:56 +0200 |
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committer | Nicolas Bornand <nicolas74@gmail.com> | 2014-05-10 18:50:56 +0200 |
commit | 2361138c1ebd43d16f3a67a18b302bdb267901fc (patch) | |
tree | a8476121128437bc034822ebf93145d222add062 /app | |
parent | 469ba240d6a3e89888a171fb544bbe1fde9275d7 (diff) | |
parent | 2fe5ac1729418b02eba2180dbe6b50a821592f4c (diff) | |
download | playGraph-2361138c1ebd43d16f3a67a18b302bdb267901fc.tar.gz playGraph-2361138c1ebd43d16f3a67a18b302bdb267901fc.tar.bz2 playGraph-2361138c1ebd43d16f3a67a18b302bdb267901fc.zip |
Merge origin/master
Diffstat (limited to 'app')
-rw-r--r-- | app/lib/jquery-1.11.1.min.js | 4 | ||||
-rw-r--r-- | app/lib/paper-full.js | 12901 |
2 files changed, 12905 insertions, 0 deletions
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Paper.js v0.9.18 - The Swiss Army Knife of Vector Graphics Scripting. + * http://paperjs.org/ + * + * Copyright (c) 2011 - 2014, Juerg Lehni & Jonathan Puckey + * http://scratchdisk.com/ & http://jonathanpuckey.com/ + * + * Distributed under the MIT license. See LICENSE file for details. + * + * All rights reserved. + * + * Date: Mon Apr 7 11:24:38 2014 +0200 + * + *** + * + * Straps.js - Class inheritance library with support for bean-style accessors + * + * Copyright (c) 2006 - 2013 Juerg Lehni + * http://scratchdisk.com/ + * + * Distributed under the MIT license. + * + *** + * + * Acorn.js + * http://marijnhaverbeke.nl/acorn/ + * + * Acorn is a tiny, fast JavaScript parser written in JavaScript, + * created by Marijn Haverbeke and released under an MIT license. + * + */ + +var paper = new function(undefined) { + +var Base = new function() { + var hidden = /^(statics|enumerable|beans|preserve)$/, + + forEach = [].forEach || function(iter, bind) { + for (var i = 0, l = this.length; i < l; i++) + iter.call(bind, this[i], i, this); + }, + + forIn = function(iter, bind) { + for (var i in this) + if (this.hasOwnProperty(i)) + iter.call(bind, this[i], i, this); + }, + + create = Object.create || function(proto) { + return { __proto__: proto }; + }, + + describe = Object.getOwnPropertyDescriptor || function(obj, name) { + var get = obj.__lookupGetter__ && obj.__lookupGetter__(name); + return get + ? { get: get, set: obj.__lookupSetter__(name), + enumerable: true, configurable: true } + : obj.hasOwnProperty(name) + ? { value: obj[name], enumerable: true, + configurable: true, writable: true } + : null; + }, + + _define = Object.defineProperty || function(obj, name, desc) { + if ((desc.get || desc.set) && obj.__defineGetter__) { + if (desc.get) + obj.__defineGetter__(name, desc.get); + if (desc.set) + obj.__defineSetter__(name, desc.set); + } else { + obj[name] = desc.value; + } + return obj; + }, + + define = function(obj, name, desc) { + delete obj[name]; + return _define(obj, name, desc); + }; + + function inject(dest, src, enumerable, beans, preserve) { + var beansNames = {}; + + function field(name, val) { + val = val || (val = describe(src, name)) + && (val.get ? val : val.value); + if (typeof val === 'string' && val[0] === '#') + val = dest[val.substring(1)] || val; + var isFunc = typeof val === 'function', + res = val, + prev = preserve || isFunc + ? (val && val.get ? name in dest : dest[name]) + : null, + bean; + if (!preserve || !prev) { + if (isFunc && prev) + val.base = prev; + if (isFunc && beans !== false + && (bean = name.match(/^([gs]et|is)(([A-Z])(.*))$/))) + beansNames[bean[3].toLowerCase() + bean[4]] = bean[2]; + if (!res || isFunc || !res.get || typeof res.get !== 'function' + || !Base.isPlainObject(res)) + res = { value: res, writable: true }; + if ((describe(dest, name) + || { configurable: true }).configurable) { + res.configurable = true; + res.enumerable = enumerable; + } + define(dest, name, res); + } + } + if (src) { + for (var name in src) { + if (src.hasOwnProperty(name) && !hidden.test(name)) + field(name); + } + for (var name in beansNames) { + var part = beansNames[name], + set = dest['set' + part], + get = dest['get' + part] || set && dest['is' + part]; + if (get && (beans === true || get.length === 0)) + field(name, { get: get, set: set }); + } + } + return dest; + } + + function each(obj, iter, bind) { + if (obj) + ('length' in obj && !obj.getLength + && typeof obj.length === 'number' + ? forEach + : forIn).call(obj, iter, bind = bind || obj); + return bind; + } + + function set(obj, props) { + for (var i in props) + if (props.hasOwnProperty(i)) + obj[i] = props[i]; + return obj; + } + + return inject(function Base() { + for (var i = 0, l = arguments.length; i < l; i++) + set(this, arguments[i]); + }, { + inject: function(src) { + if (src) { + var statics = src.statics === true ? src : src.statics, + beans = src.beans, + preserve = src.preserve; + if (statics !== src) + inject(this.prototype, src, src.enumerable, beans, preserve); + inject(this, statics, true, beans, preserve); + } + for (var i = 1, l = arguments.length; i < l; i++) + this.inject(arguments[i]); + return this; + }, + + extend: function() { + var base = this, + ctor; + for (var i = 0, l = arguments.length; i < l; i++) + if (ctor = arguments[i].initialize) + break; + ctor = ctor || function() { + base.apply(this, arguments); + }; + ctor.prototype = create(this.prototype); + ctor.base = base; + define(ctor.prototype, 'constructor', + { value: ctor, writable: true, configurable: true }); + inject(ctor, this, true); + return arguments.length ? this.inject.apply(ctor, arguments) : ctor; + } + }, true).inject({ + inject: function() { + for (var i = 0, l = arguments.length; i < l; i++) { + var src = arguments[i]; + if (src) + inject(this, src, src.enumerable, src.beans, src.preserve); + } + return this; + }, + + extend: function() { + var res = create(this); + return res.inject.apply(res, arguments); + }, + + each: function(iter, bind) { + return each(this, iter, bind); + }, + + clone: function() { + return new this.constructor(this); + }, + + statics: { + each: each, + create: create, + define: define, + describe: describe, + set: set, + + clone: function(obj) { + return set(new obj.constructor(), obj); + }, + + isPlainObject: function(obj) { + var ctor = obj != null && obj.constructor; + return ctor && (ctor === Object || ctor === Base + || ctor.name === 'Object'); + }, + + pick: function() { + for (var i = 0, l = arguments.length; i < l; i++) + if (arguments[i] !== undefined) + return arguments[i]; + } + } + }); +}; + +if (typeof module !== 'undefined') + module.exports = Base; + +if (!Array.isArray) { + Array.isArray = function(obj) { + return Object.prototype.toString.call(obj) === '[object Array]'; + }; +} + +if (!document.head) { + document.head = document.getElementsByTagName('head')[0]; +} + +Base.inject({ + toString: function() { + return this._id != null + ? (this._class || 'Object') + (this._name + ? " '" + this._name + "'" + : ' @' + this._id) + : '{ ' + Base.each(this, function(value, key) { + if (!/^_/.test(key)) { + var type = typeof value; + this.push(key + ': ' + (type === 'number' + ? Formatter.instance.number(value) + : type === 'string' ? "'" + value + "'" : value)); + } + }, []).join(', ') + ' }'; + }, + + exportJSON: function(options) { + return Base.exportJSON(this, options); + }, + + toJSON: function() { + return Base.serialize(this); + }, + + _set: function(props, exclude) { + if (props && Base.isPlainObject(props)) { + var orig = props._filtering || props; + for (var key in orig) { + if (key in this && orig.hasOwnProperty(key) + && (!exclude || !exclude[key])) { + var value = props[key]; + if (value !== undefined) + this[key] = value; + } + } + return true; + } + }, + + statics: { + + exports: { + enumerable: true + }, + + extend: function extend() { + var res = extend.base.apply(this, arguments), + name = res.prototype._class; + if (name && !Base.exports[name]) + Base.exports[name] = res; + return res; + }, + + equals: function(obj1, obj2) { + function checkKeys(o1, o2) { + for (var i in o1) + if (o1.hasOwnProperty(i) && !o2.hasOwnProperty(i)) + return false; + return true; + } + if (obj1 === obj2) + return true; + if (obj1 && obj1.equals) + return obj1.equals(obj2); + if (obj2 && obj2.equals) + return obj2.equals(obj1); + if (Array.isArray(obj1) && Array.isArray(obj2)) { + if (obj1.length !== obj2.length) + return false; + for (var i = 0, l = obj1.length; i < l; i++) { + if (!Base.equals(obj1[i], obj2[i])) + return false; + } + return true; + } + if (obj1 && typeof obj1 === 'object' + && obj2 && typeof obj2 === 'object') { + if (!checkKeys(obj1, obj2) || !checkKeys(obj2, obj1)) + return false; + for (var i in obj1) { + if (obj1.hasOwnProperty(i) + && !Base.equals(obj1[i], obj2[i])) + return false; + } + return true; + } + return false; + }, + + read: function(list, start, options, length) { + if (this === Base) { + var value = this.peek(list, start); + list.__index++; + return value; + } + var proto = this.prototype, + readIndex = proto._readIndex, + index = start || readIndex && list.__index || 0; + if (!length) + length = list.length - index; + var obj = list[index]; + if (obj instanceof this + || options && options.readNull && obj == null && length <= 1) { + if (readIndex) + list.__index = index + 1; + return obj && options && options.clone ? obj.clone() : obj; + } + obj = Base.create(this.prototype); + if (readIndex) + obj.__read = true; + obj = obj.initialize.apply(obj, index > 0 || length < list.length + ? Array.prototype.slice.call(list, index, index + length) + : list) || obj; + if (readIndex) { + list.__index = index + obj.__read; + obj.__read = undefined; + } + return obj; + }, + + peek: function(list, start) { + return list[list.__index = start || list.__index || 0]; + }, + + remain: function(list) { + return list.length - (list.__index || 0); + }, + + readAll: function(list, start, options) { + var res = [], + entry; + for (var i = start || 0, l = list.length; i < l; i++) { + res.push(Array.isArray(entry = list[i]) + ? this.read(entry, 0, options) + : this.read(list, i, options, 1)); + } + return res; + }, + + readNamed: function(list, name, start, options, length) { + var value = this.getNamed(list, name), + hasObject = value !== undefined; + if (hasObject) { + var filtered = list._filtered; + if (!filtered) { + filtered = list._filtered = Base.create(list[0]); + filtered._filtering = list[0]; + } + filtered[name] = undefined; + } + return this.read(hasObject ? [value] : list, start, options, length); + }, + + getNamed: function(list, name) { + var arg = list[0]; + if (list._hasObject === undefined) + list._hasObject = list.length === 1 && Base.isPlainObject(arg); + if (list._hasObject) + return name ? arg[name] : list._filtered || arg; + }, + + hasNamed: function(list, name) { + return !!this.getNamed(list, name); + }, + + isPlainValue: function(obj) { + return this.isPlainObject(obj) || Array.isArray(obj); + }, + + serialize: function(obj, options, compact, dictionary) { + options = options || {}; + + var root = !dictionary, + res; + if (root) { + options.formatter = new Formatter(options.precision); + dictionary = { + length: 0, + definitions: {}, + references: {}, + add: function(item, create) { + var id = '#' + item._id, + ref = this.references[id]; + if (!ref) { + this.length++; + var res = create.call(item), + name = item._class; + if (name && res[0] !== name) + res.unshift(name); + this.definitions[id] = res; + ref = this.references[id] = [id]; + } + return ref; + } + }; + } + if (obj && obj._serialize) { + res = obj._serialize(options, dictionary); + var name = obj._class; + if (name && !compact && !res._compact && res[0] !== name) + res.unshift(name); + } else if (Array.isArray(obj)) { + res = []; + for (var i = 0, l = obj.length; i < l; i++) + res[i] = Base.serialize(obj[i], options, compact, + dictionary); + if (compact) + res._compact = true; + } else if (Base.isPlainObject(obj)) { + res = {}; + for (var i in obj) + if (obj.hasOwnProperty(i)) + res[i] = Base.serialize(obj[i], options, compact, + dictionary); + } else if (typeof obj === 'number') { + res = options.formatter.number(obj, options.precision); + } else { + res = obj; + } + return root && dictionary.length > 0 + ? [['dictionary', dictionary.definitions], res] + : res; + }, + + deserialize: function(json, create, _data) { + var res = json, + isRoot = !_data; + _data = _data || {}; + if (Array.isArray(json)) { + var type = json[0], + isDictionary = type === 'dictionary'; + if (!isDictionary) { + if (_data.dictionary && json.length == 1 && /^#/.test(type)) + return _data.dictionary[type]; + type = Base.exports[type]; + } + res = []; + for (var i = type ? 1 : 0, l = json.length; i < l; i++) + res.push(Base.deserialize(json[i], create, _data)); + if (isDictionary) { + _data.dictionary = res[0]; + } else if (type) { + var args = res; + if (create) { + res = create(type, args, isRoot); + } else { + res = Base.create(type.prototype); + type.apply(res, args); + } + } + } else if (Base.isPlainObject(json)) { + res = {}; + for (var key in json) + res[key] = Base.deserialize(json[key], create, _data); + } + return res; + }, + + exportJSON: function(obj, options) { + var json = Base.serialize(obj, options); + return options && options.asString === false + ? json + : JSON.stringify(json); + }, + + importJSON: function(json, target) { + return Base.deserialize( + typeof json === 'string' ? JSON.parse(json) : json, + function(type, args, isRoot) { + var obj = target && target.constructor === type + ? target + : Base.create(type.prototype), + isTarget = obj === target; + if (!isRoot && args.length === 1 && obj instanceof Item + && (!(obj instanceof Layer) || isTarget)) { + var arg = args[0]; + if (Base.isPlainObject(arg)) + arg.insert = false; + } + type.apply(obj, args); + if (isTarget) + target = null; + return obj; + }); + }, + + splice: function(list, items, index, remove) { + var amount = items && items.length, + append = index === undefined; + index = append ? list.length : index; + if (index > list.length) + index = list.length; + for (var i = 0; i < amount; i++) + items[i]._index = index + i; + if (append) { + list.push.apply(list, items); + return []; + } else { + var args = [index, remove]; + if (items) + args.push.apply(args, items); + var removed = list.splice.apply(list, args); + for (var i = 0, l = removed.length; i < l; i++) + removed[i]._index = undefined; + for (var i = index + amount, l = list.length; i < l; i++) + list[i]._index = i; + return removed; + } + }, + + capitalize: function(str) { + return str.replace(/\b[a-z]/g, function(match) { + return match.toUpperCase(); + }); + }, + + camelize: function(str) { + return str.replace(/-(.)/g, function(all, chr) { + return chr.toUpperCase(); + }); + }, + + hyphenate: function(str) { + return str.replace(/([a-z])([A-Z])/g, '$1-$2').toLowerCase(); + } + } +}); + +var Callback = { + attach: function(type, func) { + if (typeof type !== 'string') { + Base.each(type, function(value, key) { + this.attach(key, value); + }, this); + return; + } + var entry = this._eventTypes[type]; + if (entry) { + var handlers = this._handlers = this._handlers || {}; + handlers = handlers[type] = handlers[type] || []; + if (handlers.indexOf(func) == -1) { + handlers.push(func); + if (entry.install && handlers.length == 1) + entry.install.call(this, type); + } + } + }, + + detach: function(type, func) { + if (typeof type !== 'string') { + Base.each(type, function(value, key) { + this.detach(key, value); + }, this); + return; + } + var entry = this._eventTypes[type], + handlers = this._handlers && this._handlers[type], + index; + if (entry && handlers) { + if (!func || (index = handlers.indexOf(func)) != -1 + && handlers.length == 1) { + if (entry.uninstall) + entry.uninstall.call(this, type); + delete this._handlers[type]; + } else if (index != -1) { + handlers.splice(index, 1); + } + } + }, + + once: function(type, func) { + this.attach(type, function() { + func.apply(this, arguments); + this.detach(type, func); + }); + }, + + fire: function(type, event) { + var handlers = this._handlers && this._handlers[type]; + if (!handlers) + return false; + var args = [].slice.call(arguments, 1), + that = this; + for (var i = 0, l = handlers.length; i < l; i++) { + if (handlers[i].apply(that, args) === false + && event && event.stop) { + event.stop(); + break; + } + } + return true; + }, + + responds: function(type) { + return !!(this._handlers && this._handlers[type]); + }, + + on: '#attach', + off: '#detach', + trigger: '#fire', + + _installEvents: function(install) { + var handlers = this._handlers, + key = install ? 'install' : 'uninstall'; + for (var type in handlers) { + if (handlers[type].length > 0) { + var entry = this._eventTypes[type], + func = entry[key]; + if (func) + func.call(this, type); + } + } + }, + + statics: { + inject: function inject() { + for (var i = 0, l = arguments.length; i < l; i++) { + var src = arguments[i], + events = src._events; + if (events) { + var types = {}; + Base.each(events, function(entry, key) { + var isString = typeof entry === 'string', + name = isString ? entry : key, + part = Base.capitalize(name), + type = name.substring(2).toLowerCase(); + types[type] = isString ? {} : entry; + name = '_' + name; + src['get' + part] = function() { + return this[name]; + }; + src['set' + part] = function(func) { + var prev = this[name]; + if (prev) + this.detach(type, prev); + if (func) + this.attach(type, func); + this[name] = func; + }; + }); + src._eventTypes = types; + } + inject.base.call(this, src); + } + return this; + } + } +}; + +var PaperScope = Base.extend({ + _class: 'PaperScope', + + initialize: function PaperScope(script) { + paper = this; + this.settings = { + applyMatrix: true, + handleSize: 4, + hitTolerance: 0 + }; + this.project = null; + this.projects = []; + this.tools = []; + this.palettes = []; + this._id = script && (script.getAttribute('id') || script.src) + || ('paperscope-' + (PaperScope._id++)); + if (script) + script.setAttribute('id', this._id); + PaperScope._scopes[this._id] = this; + if (!this.support) { + var ctx = CanvasProvider.getContext(1, 1); + PaperScope.prototype.support = { + nativeDash: 'setLineDash' in ctx || 'mozDash' in ctx, + nativeBlendModes: BlendMode.nativeModes + }; + CanvasProvider.release(ctx); + } + }, + + version: '0.9.18', + + getView: function() { + return this.project && this.project.getView(); + }, + + getPaper: function() { + return this; + }, + + execute: function(code) { + paper.PaperScript.execute(code, this); + View.updateFocus(); + }, + + install: function(scope) { + var that = this; + Base.each(['project', 'view', 'tool'], function(key) { + Base.define(scope, key, { + configurable: true, + get: function() { + return that[key]; + } + }); + }); + for (var key in this) + if (!/^_/.test(key) && this[key]) + scope[key] = this[key]; + }, + + setup: function(canvas) { + paper = this; + this.project = new Project(canvas); + return this; + }, + + activate: function() { + paper = this; + }, + + clear: function() { + for (var i = this.projects.length - 1; i >= 0; i--) + this.projects[i].remove(); + for (var i = this.tools.length - 1; i >= 0; i--) + this.tools[i].remove(); + for (var i = this.palettes.length - 1; i >= 0; i--) + this.palettes[i].remove(); + }, + + remove: function() { + this.clear(); + delete PaperScope._scopes[this._id]; + }, + + statics: new function() { + function handleAttribute(name) { + name += 'Attribute'; + return function(el, attr) { + return el[name](attr) || el[name]('data-paper-' + attr); + }; + } + + return { + _scopes: {}, + _id: 0, + + get: function(id) { + if (id && id.getAttribute) + id = id.getAttribute('id'); + return this._scopes[id] || null; + }, + + getAttribute: handleAttribute('get'), + hasAttribute: handleAttribute('has') + }; + } +}); + +var PaperScopeItem = Base.extend(Callback, { + + initialize: function(activate) { + this._scope = paper; + this._index = this._scope[this._list].push(this) - 1; + if (activate || !this._scope[this._reference]) + this.activate(); + }, + + activate: function() { + if (!this._scope) + return false; + var prev = this._scope[this._reference]; + if (prev && prev !== this) + prev.fire('deactivate'); + this._scope[this._reference] = this; + this.fire('activate', prev); + return true; + }, + + isActive: function() { + return this._scope[this._reference] === this; + }, + + remove: function() { + if (this._index == null) + return false; + Base.splice(this._scope[this._list], null, this._index, 1); + if (this._scope[this._reference] == this) + this._scope[this._reference] = null; + this._scope = null; + return true; + } +}); + +var Formatter = Base.extend({ + initialize: function(precision) { + this.precision = precision || 5; + this.multiplier = Math.pow(10, this.precision); + }, + + number: function(val) { + return Math.round(val * this.multiplier) / this.multiplier; + }, + + point: function(val, separator) { + return this.number(val.x) + (separator || ',') + this.number(val.y); + }, + + size: function(val, separator) { + return this.number(val.width) + (separator || ',') + + this.number(val.height); + }, + + rectangle: function(val, separator) { + return this.point(val, separator) + (separator || ',') + + this.size(val, separator); + } +}); + +Formatter.instance = new Formatter(); + +var Numerical = new function() { + + var abscissas = [ + [ 0.5773502691896257645091488], + [0,0.7745966692414833770358531], + [ 0.3399810435848562648026658,0.8611363115940525752239465], + [0,0.5384693101056830910363144,0.9061798459386639927976269], + [ 0.2386191860831969086305017,0.6612093864662645136613996,0.9324695142031520278123016], + [0,0.4058451513773971669066064,0.7415311855993944398638648,0.9491079123427585245261897], + [ 0.1834346424956498049394761,0.5255324099163289858177390,0.7966664774136267395915539,0.9602898564975362316835609], + [0,0.3242534234038089290385380,0.6133714327005903973087020,0.8360311073266357942994298,0.9681602395076260898355762], + [ 0.1488743389816312108848260,0.4333953941292471907992659,0.6794095682990244062343274,0.8650633666889845107320967,0.9739065285171717200779640], + [0,0.2695431559523449723315320,0.5190961292068118159257257,0.7301520055740493240934163,0.8870625997680952990751578,0.9782286581460569928039380], + [ 0.1252334085114689154724414,0.3678314989981801937526915,0.5873179542866174472967024,0.7699026741943046870368938,0.9041172563704748566784659,0.9815606342467192506905491], + [0,0.2304583159551347940655281,0.4484927510364468528779129,0.6423493394403402206439846,0.8015780907333099127942065,0.9175983992229779652065478,0.9841830547185881494728294], + [ 0.1080549487073436620662447,0.3191123689278897604356718,0.5152486363581540919652907,0.6872929048116854701480198,0.8272013150697649931897947,0.9284348836635735173363911,0.9862838086968123388415973], + [0,0.2011940939974345223006283,0.3941513470775633698972074,0.5709721726085388475372267,0.7244177313601700474161861,0.8482065834104272162006483,0.9372733924007059043077589,0.9879925180204854284895657], + [ 0.0950125098376374401853193,0.2816035507792589132304605,0.4580167776572273863424194,0.6178762444026437484466718,0.7554044083550030338951012,0.8656312023878317438804679,0.9445750230732325760779884,0.9894009349916499325961542] + ]; + + var weights = [ + [1], + [0.8888888888888888888888889,0.5555555555555555555555556], + [0.6521451548625461426269361,0.3478548451374538573730639], + [0.5688888888888888888888889,0.4786286704993664680412915,0.2369268850561890875142640], + [0.4679139345726910473898703,0.3607615730481386075698335,0.1713244923791703450402961], + [0.4179591836734693877551020,0.3818300505051189449503698,0.2797053914892766679014678,0.1294849661688696932706114], + [0.3626837833783619829651504,0.3137066458778872873379622,0.2223810344533744705443560,0.1012285362903762591525314], + [0.3302393550012597631645251,0.3123470770400028400686304,0.2606106964029354623187429,0.1806481606948574040584720,0.0812743883615744119718922], + [0.2955242247147528701738930,0.2692667193099963550912269,0.2190863625159820439955349,0.1494513491505805931457763,0.0666713443086881375935688], + [0.2729250867779006307144835,0.2628045445102466621806889,0.2331937645919904799185237,0.1862902109277342514260976,0.1255803694649046246346943,0.0556685671161736664827537], + [0.2491470458134027850005624,0.2334925365383548087608499,0.2031674267230659217490645,0.1600783285433462263346525,0.1069393259953184309602547,0.0471753363865118271946160], + [0.2325515532308739101945895,0.2262831802628972384120902,0.2078160475368885023125232,0.1781459807619457382800467,0.1388735102197872384636018,0.0921214998377284479144218,0.0404840047653158795200216], + [0.2152638534631577901958764,0.2051984637212956039659241,0.1855383974779378137417166,0.1572031671581935345696019,0.1215185706879031846894148,0.0801580871597602098056333,0.0351194603317518630318329], + [0.2025782419255612728806202,0.1984314853271115764561183,0.1861610000155622110268006,0.1662692058169939335532009,0.1395706779261543144478048,0.1071592204671719350118695,0.0703660474881081247092674,0.0307532419961172683546284], + [0.1894506104550684962853967,0.1826034150449235888667637,0.1691565193950025381893121,0.1495959888165767320815017,0.1246289712555338720524763,0.0951585116824927848099251,0.0622535239386478928628438,0.0271524594117540948517806] + ]; + + var abs = Math.abs, + sqrt = Math.sqrt, + pow = Math.pow, + cos = Math.cos, + PI = Math.PI, + TOLERANCE = 10e-6, + EPSILON = 10e-12; + + function setupRoots(roots, min, max) { + var unbound = min === undefined, + minE = min - EPSILON, + maxE = max + EPSILON, + count = 0; + return function(root) { + if (unbound || root > minE && root < maxE) + roots[count++] = root < min ? min : root > max ? max : root; + return count; + }; + } + + return { + TOLERANCE: TOLERANCE, + EPSILON: EPSILON, + KAPPA: 4 * (sqrt(2) - 1) / 3, + + isZero: function(val) { + return abs(val) <= EPSILON; + }, + + integrate: function(f, a, b, n) { + var x = abscissas[n - 2], + w = weights[n - 2], + A = 0.5 * (b - a), + B = A + a, + i = 0, + m = (n + 1) >> 1, + sum = n & 1 ? w[i++] * f(B) : 0; + while (i < m) { + var Ax = A * x[i]; + sum += w[i++] * (f(B + Ax) + f(B - Ax)); + } + return A * sum; + }, + + findRoot: function(f, df, x, a, b, n, tolerance) { + for (var i = 0; i < n; i++) { + var fx = f(x), + dx = fx / df(x), + nx = x - dx; + if (abs(dx) < tolerance) + return nx; + if (fx > 0) { + b = x; + x = nx <= a ? 0.5 * (a + b) : nx; + } else { + a = x; + x = nx >= b ? 0.5 * (a + b) : nx; + } + } + return x; + }, + + solveQuadratic: function(a, b, c, roots, min, max) { + var add = setupRoots(roots, min, max); + + if (abs(a) < EPSILON) { + if (abs(b) >= EPSILON) + return add(-c / b); + return abs(c) < EPSILON ? -1 : 0; + } + var p = b / (2 * a); + var q = c / a; + var p2 = p * p; + if (p2 < q - EPSILON) + return 0; + var s = p2 > q ? sqrt(p2 - q) : 0, + count = add(s - p); + if (s > 0) + count = add(-s - p); + return count; + }, + + solveCubic: function(a, b, c, d, roots, min, max) { + if (abs(a) < EPSILON) + return Numerical.solveQuadratic(b, c, d, roots, min, max); + + b /= a; + c /= a; + d /= a; + var add = setupRoots(roots, min, max), + bb = b * b, + p = (bb - 3 * c) / 9, + q = (2 * bb * b - 9 * b * c + 27 * d) / 54, + ppp = p * p * p, + D = q * q - ppp; + b /= 3; + if (abs(D) < EPSILON) { + if (abs(q) < EPSILON) + return add(-b); + var sqp = sqrt(p), + snq = q > 0 ? 1 : -1; + add(-snq * 2 * sqp - b); + return add(snq * sqp - b); + } + if (D < 0) { + var sqp = sqrt(p), + phi = Math.acos(q / (sqp * sqp * sqp)) / 3, + t = -2 * sqp, + o = 2 * PI / 3; + add(t * cos(phi) - b); + add(t * cos(phi + o) - b); + return add(t * cos(phi - o) - b); + } + var A = (q > 0 ? -1 : 1) * pow(abs(q) + sqrt(D), 1 / 3); + return add(A + p / A - b); + } + }; +}; + +var Point = Base.extend({ + _class: 'Point', + _readIndex: true, + + initialize: function Point(arg0, arg1) { + var type = typeof arg0; + if (type === 'number') { + var hasY = typeof arg1 === 'number'; + this.x = arg0; + this.y = hasY ? arg1 : arg0; + if (this.__read) + this.__read = hasY ? 2 : 1; + } else if (type === 'undefined' || arg0 === null) { + this.x = this.y = 0; + if (this.__read) + this.__read = arg0 === null ? 1 : 0; + } else { + if (Array.isArray(arg0)) { + this.x = arg0[0]; + this.y = arg0.length > 1 ? arg0[1] : arg0[0]; + } else if (arg0.x != null) { + this.x = arg0.x; + this.y = arg0.y; + } else if (arg0.width != null) { + this.x = arg0.width; + this.y = arg0.height; + } else if (arg0.angle != null) { + this.x = arg0.length; + this.y = 0; + this.setAngle(arg0.angle); + } else { + this.x = this.y = 0; + if (this.__read) + this.__read = 0; + } + if (this.__read) + this.__read = 1; + } + }, + + set: function(x, y) { + this.x = x; + this.y = y; + return this; + }, + + equals: function(point) { + return this === point || point + && (this.x === point.x && this.y === point.y + || Array.isArray(point) + && this.x === point[0] && this.y === point[1]) + || false; + }, + + clone: function() { + return new Point(this.x, this.y); + }, + + toString: function() { + var f = Formatter.instance; + return '{ x: ' + f.number(this.x) + ', y: ' + f.number(this.y) + ' }'; + }, + + _serialize: function(options) { + var f = options.formatter; + return [f.number(this.x), f.number(this.y)]; + }, + + getLength: function() { + return Math.sqrt(this.x * this.x + this.y * this.y); + }, + + setLength: function(length) { + if (this.isZero()) { + var angle = this._angle || 0; + this.set( + Math.cos(angle) * length, + Math.sin(angle) * length + ); + } else { + var scale = length / this.getLength(); + if (Numerical.isZero(scale)) + this.getAngle(); + this.set( + this.x * scale, + this.y * scale + ); + } + }, + getAngle: function() { + return this.getAngleInRadians.apply(this, arguments) * 180 / Math.PI; + }, + + setAngle: function(angle) { + this.setAngleInRadians.call(this, angle * Math.PI / 180); + }, + + getAngleInDegrees: '#getAngle', + setAngleInDegrees: '#setAngle', + + getAngleInRadians: function() { + if (!arguments.length) { + return this.isZero() + ? this._angle || 0 + : this._angle = Math.atan2(this.y, this.x); + } else { + var point = Point.read(arguments), + div = this.getLength() * point.getLength(); + if (Numerical.isZero(div)) { + return NaN; + } else { + return Math.acos(this.dot(point) / div); + } + } + }, + + setAngleInRadians: function(angle) { + this._angle = angle; + if (!this.isZero()) { + var length = this.getLength(); + this.set( + Math.cos(angle) * length, + Math.sin(angle) * length + ); + } + }, + + getQuadrant: function() { + return this.x >= 0 ? this.y >= 0 ? 1 : 4 : this.y >= 0 ? 2 : 3; + } +}, { + beans: false, + + getDirectedAngle: function() { + var point = Point.read(arguments); + return Math.atan2(this.cross(point), this.dot(point)) * 180 / Math.PI; + }, + + getDistance: function() { + var point = Point.read(arguments), + x = point.x - this.x, + y = point.y - this.y, + d = x * x + y * y, + squared = Base.read(arguments); + return squared ? d : Math.sqrt(d); + }, + + normalize: function(length) { + if (length === undefined) + length = 1; + var current = this.getLength(), + scale = current !== 0 ? length / current : 0, + point = new Point(this.x * scale, this.y * scale); + if (scale >= 0) + point._angle = this._angle; + return point; + }, + + rotate: function(angle, center) { + if (angle === 0) + return this.clone(); + angle = angle * Math.PI / 180; + var point = center ? this.subtract(center) : this, + s = Math.sin(angle), + c = Math.cos(angle); + point = new Point( + point.x * c - point.y * s, + point.x * s + point.y * c + ); + return center ? point.add(center) : point; + }, + + transform: function(matrix) { + return matrix ? matrix._transformPoint(this) : this; + }, + + add: function() { + var point = Point.read(arguments); + return new Point(this.x + point.x, this.y + point.y); + }, + + subtract: function() { + var point = Point.read(arguments); + return new Point(this.x - point.x, this.y - point.y); + }, + + multiply: function() { + var point = Point.read(arguments); + return new Point(this.x * point.x, this.y * point.y); + }, + + divide: function() { + var point = Point.read(arguments); + return new Point(this.x / point.x, this.y / point.y); + }, + + modulo: function() { + var point = Point.read(arguments); + return new Point(this.x % point.x, this.y % point.y); + }, + + negate: function() { + return new Point(-this.x, -this.y); + }, + + isInside: function(rect) { + return rect.contains(this); + }, + + isClose: function(point, tolerance) { + return this.getDistance(point) < tolerance; + }, + + isColinear: function(point) { + return Math.abs(this.cross(point)) < 0.00001; + }, + + isOrthogonal: function(point) { + return Math.abs(this.dot(point)) < 0.00001; + }, + + isZero: function() { + return Numerical.isZero(this.x) && Numerical.isZero(this.y); + }, + + isNaN: function() { + return isNaN(this.x) || isNaN(this.y); + }, + + dot: function() { + var point = Point.read(arguments); + return this.x * point.x + this.y * point.y; + }, + + cross: function() { + var point = Point.read(arguments); + return this.x * point.y - this.y * point.x; + }, + + project: function() { + var point = Point.read(arguments); + if (point.isZero()) { + return new Point(0, 0); + } else { + var scale = this.dot(point) / point.dot(point); + return new Point( + point.x * scale, + point.y * scale + ); + } + }, + + statics: { + min: function() { + var point1 = Point.read(arguments), + point2 = Point.read(arguments); + return new Point( + Math.min(point1.x, point2.x), + Math.min(point1.y, point2.y) + ); + }, + + max: function() { + var point1 = Point.read(arguments), + point2 = Point.read(arguments); + return new Point( + Math.max(point1.x, point2.x), + Math.max(point1.y, point2.y) + ); + }, + + random: function() { + return new Point(Math.random(), Math.random()); + } + } +}, Base.each(['round', 'ceil', 'floor', 'abs'], function(name) { + var op = Math[name]; + this[name] = function() { + return new Point(op(this.x), op(this.y)); + }; +}, {})); + +var LinkedPoint = Point.extend({ + initialize: function Point(x, y, owner, setter) { + this._x = x; + this._y = y; + this._owner = owner; + this._setter = setter; + }, + + set: function(x, y, _dontNotify) { + this._x = x; + this._y = y; + if (!_dontNotify) + this._owner[this._setter](this); + return this; + }, + + getX: function() { + return this._x; + }, + + setX: function(x) { + this._x = x; + this._owner[this._setter](this); + }, + + getY: function() { + return this._y; + }, + + setY: function(y) { + this._y = y; + this._owner[this._setter](this); + } +}); + +var Size = Base.extend({ + _class: 'Size', + _readIndex: true, + + initialize: function Size(arg0, arg1) { + var type = typeof arg0; + if (type === 'number') { + var hasHeight = typeof arg1 === 'number'; + this.width = arg0; + this.height = hasHeight ? arg1 : arg0; + if (this.__read) + this.__read = hasHeight ? 2 : 1; + } else if (type === 'undefined' || arg0 === null) { + this.width = this.height = 0; + if (this.__read) + this.__read = arg0 === null ? 1 : 0; + } else { + if (Array.isArray(arg0)) { + this.width = arg0[0]; + this.height = arg0.length > 1 ? arg0[1] : arg0[0]; + } else if (arg0.width != null) { + this.width = arg0.width; + this.height = arg0.height; + } else if (arg0.x != null) { + this.width = arg0.x; + this.height = arg0.y; + } else { + this.width = this.height = 0; + if (this.__read) + this.__read = 0; + } + if (this.__read) + this.__read = 1; + } + }, + + set: function(width, height) { + this.width = width; + this.height = height; + return this; + }, + + equals: function(size) { + return size === this || size && (this.width === size.width + && this.height === size.height + || Array.isArray(size) && this.width === size[0] + && this.height === size[1]) || false; + }, + + clone: function() { + return new Size(this.width, this.height); + }, + + toString: function() { + var f = Formatter.instance; + return '{ width: ' + f.number(this.width) + + ', height: ' + f.number(this.height) + ' }'; + }, + + _serialize: function(options) { + var f = options.formatter; + return [f.number(this.width), + f.number(this.height)]; + }, + + add: function() { + var size = Size.read(arguments); + return new Size(this.width + size.width, this.height + size.height); + }, + + subtract: function() { + var size = Size.read(arguments); + return new Size(this.width - size.width, this.height - size.height); + }, + + multiply: function() { + var size = Size.read(arguments); + return new Size(this.width * size.width, this.height * size.height); + }, + + divide: function() { + var size = Size.read(arguments); + return new Size(this.width / size.width, this.height / size.height); + }, + + modulo: function() { + var size = Size.read(arguments); + return new Size(this.width % size.width, this.height % size.height); + }, + + negate: function() { + return new Size(-this.width, -this.height); + }, + + isZero: function() { + return Numerical.isZero(this.width) && Numerical.isZero(this.height); + }, + + isNaN: function() { + return isNaN(this.width) || isNaN(this.height); + }, + + statics: { + min: function(size1, size2) { + return new Size( + Math.min(size1.width, size2.width), + Math.min(size1.height, size2.height)); + }, + + max: function(size1, size2) { + return new Size( + Math.max(size1.width, size2.width), + Math.max(size1.height, size2.height)); + }, + + random: function() { + return new Size(Math.random(), Math.random()); + } + } +}, Base.each(['round', 'ceil', 'floor', 'abs'], function(name) { + var op = Math[name]; + this[name] = function() { + return new Size(op(this.width), op(this.height)); + }; +}, {})); + +var LinkedSize = Size.extend({ + initialize: function Size(width, height, owner, setter) { + this._width = width; + this._height = height; + this._owner = owner; + this._setter = setter; + }, + + set: function(width, height, _dontNotify) { + this._width = width; + this._height = height; + if (!_dontNotify) + this._owner[this._setter](this); + return this; + }, + + getWidth: function() { + return this._width; + }, + + setWidth: function(width) { + this._width = width; + this._owner[this._setter](this); + }, + + getHeight: function() { + return this._height; + }, + + setHeight: function(height) { + this._height = height; + this._owner[this._setter](this); + } +}); + +var Rectangle = Base.extend({ + _class: 'Rectangle', + _readIndex: true, + beans: true, + + initialize: function Rectangle(arg0, arg1, arg2, arg3) { + var type = typeof arg0, + read = 0; + if (type === 'number') { + this.x = arg0; + this.y = arg1; + this.width = arg2; + this.height = arg3; + read = 4; + } else if (type === 'undefined' || arg0 === null) { + this.x = this.y = this.width = this.height = 0; + read = arg0 === null ? 1 : 0; + } else if (arguments.length === 1) { + if (Array.isArray(arg0)) { + this.x = arg0[0]; + this.y = arg0[1]; + this.width = arg0[2]; + this.height = arg0[3]; + read = 1; + } else if (arg0.x !== undefined || arg0.width !== undefined) { + this.x = arg0.x || 0; + this.y = arg0.y || 0; + this.width = arg0.width || 0; + this.height = arg0.height || 0; + read = 1; + } else if (arg0.from === undefined && arg0.to === undefined) { + this.x = this.y = this.width = this.height = 0; + this._set(arg0); + read = 1; + } + } + if (!read) { + var point = Point.readNamed(arguments, 'from'), + next = Base.peek(arguments); + this.x = point.x; + this.y = point.y; + if (next && next.x !== undefined || Base.hasNamed(arguments, 'to')) { + var to = Point.readNamed(arguments, 'to'); + this.width = to.x - point.x; + this.height = to.y - point.y; + if (this.width < 0) { + this.x = to.x; + this.width = -this.width; + } + if (this.height < 0) { + this.y = to.y; + this.height = -this.height; + } + } else { + var size = Size.read(arguments); + this.width = size.width; + this.height = size.height; + } + read = arguments.__index; + } + if (this.__read) + this.__read = read; + }, + + set: function(x, y, width, height) { + this.x = x; + this.y = y; + this.width = width; + this.height = height; + return this; + }, + + clone: function() { + return new Rectangle(this.x, this.y, this.width, this.height); + }, + + equals: function(rect) { + var rt = Base.isPlainValue(rect) + ? Rectangle.read(arguments) + : rect; + return rt === this + || rt && this.x === rt.x && this.y === rt.y + && this.width === rt.width && this.height === rt.height + || false; + }, + + toString: function() { + var f = Formatter.instance; + return '{ x: ' + f.number(this.x) + + ', y: ' + f.number(this.y) + + ', width: ' + f.number(this.width) + + ', height: ' + f.number(this.height) + + ' }'; + }, + + _serialize: function(options) { + var f = options.formatter; + return [f.number(this.x), + f.number(this.y), + f.number(this.width), + f.number(this.height)]; + }, + + getPoint: function(_dontLink) { + var ctor = _dontLink ? Point : LinkedPoint; + return new ctor(this.x, this.y, this, 'setPoint'); + }, + + setPoint: function() { + var point = Point.read(arguments); + this.x = point.x; + this.y = point.y; + }, + + getSize: function(_dontLink) { + var ctor = _dontLink ? Size : LinkedSize; + return new ctor(this.width, this.height, this, 'setSize'); + }, + + setSize: function() { + var size = Size.read(arguments); + if (this._fixX) + this.x += (this.width - size.width) * this._fixX; + if (this._fixY) + this.y += (this.height - size.height) * this._fixY; + this.width = size.width; + this.height = size.height; + this._fixW = 1; + this._fixH = 1; + }, + + getLeft: function() { + return this.x; + }, + + setLeft: function(left) { + if (!this._fixW) + this.width -= left - this.x; + this.x = left; + this._fixX = 0; + }, + + getTop: function() { + return this.y; + }, + + setTop: function(top) { + if (!this._fixH) + this.height -= top - this.y; + this.y = top; + this._fixY = 0; + }, + + getRight: function() { + return this.x + this.width; + }, + + setRight: function(right) { + if (this._fixX !== undefined && this._fixX !== 1) + this._fixW = 0; + if (this._fixW) + this.x = right - this.width; + else + this.width = right - this.x; + this._fixX = 1; + }, + + getBottom: function() { + return this.y + this.height; + }, + + setBottom: function(bottom) { + if (this._fixY !== undefined && this._fixY !== 1) + this._fixH = 0; + if (this._fixH) + this.y = bottom - this.height; + else + this.height = bottom - this.y; + this._fixY = 1; + }, + + getCenterX: function() { + return this.x + this.width * 0.5; + }, + + setCenterX: function(x) { + this.x = x - this.width * 0.5; + this._fixX = 0.5; + }, + + getCenterY: function() { + return this.y + this.height * 0.5; + }, + + setCenterY: function(y) { + this.y = y - this.height * 0.5; + this._fixY = 0.5; + }, + + getCenter: function(_dontLink) { + var ctor = _dontLink ? Point : LinkedPoint; + return new ctor(this.getCenterX(), this.getCenterY(), this, 'setCenter'); + }, + + setCenter: function() { + var point = Point.read(arguments); + this.setCenterX(point.x); + this.setCenterY(point.y); + return this; + }, + + getArea: function() { + return this.width * this.height; + }, + + isEmpty: function() { + return this.width === 0 || this.height === 0; + }, + + contains: function(arg) { + return arg && arg.width !== undefined + || (Array.isArray(arg) ? arg : arguments).length == 4 + ? this._containsRectangle(Rectangle.read(arguments)) + : this._containsPoint(Point.read(arguments)); + }, + + _containsPoint: function(point) { + var x = point.x, + y = point.y; + return x >= this.x && y >= this.y + && x <= this.x + this.width + && y <= this.y + this.height; + }, + + _containsRectangle: function(rect) { + var x = rect.x, + y = rect.y; + return x >= this.x && y >= this.y + && x + rect.width <= this.x + this.width + && y + rect.height <= this.y + this.height; + }, + + intersects: function() { + var rect = Rectangle.read(arguments); + return rect.x + rect.width > this.x + && rect.y + rect.height > this.y + && rect.x < this.x + this.width + && rect.y < this.y + this.height; + }, + + touches: function() { + var rect = Rectangle.read(arguments); + return rect.x + rect.width >= this.x + && rect.y + rect.height >= this.y + && rect.x <= this.x + this.width + && rect.y <= this.y + this.height; + }, + + intersect: function() { + var rect = Rectangle.read(arguments), + x1 = Math.max(this.x, rect.x), + y1 = Math.max(this.y, rect.y), + x2 = Math.min(this.x + this.width, rect.x + rect.width), + y2 = Math.min(this.y + this.height, rect.y + rect.height); + return new Rectangle(x1, y1, x2 - x1, y2 - y1); + }, + + unite: function() { + var rect = Rectangle.read(arguments), + x1 = Math.min(this.x, rect.x), + y1 = Math.min(this.y, rect.y), + x2 = Math.max(this.x + this.width, rect.x + rect.width), + y2 = Math.max(this.y + this.height, rect.y + rect.height); + return new Rectangle(x1, y1, x2 - x1, y2 - y1); + }, + + include: function() { + var point = Point.read(arguments); + var x1 = Math.min(this.x, point.x), + y1 = Math.min(this.y, point.y), + x2 = Math.max(this.x + this.width, point.x), + y2 = Math.max(this.y + this.height, point.y); + return new Rectangle(x1, y1, x2 - x1, y2 - y1); + }, + + expand: function() { + var amount = Size.read(arguments), + hor = amount.width, + ver = amount.height; + return new Rectangle(this.x - hor / 2, this.y - ver / 2, + this.width + hor, this.height + ver); + }, + + scale: function(hor, ver) { + return this.expand(this.width * hor - this.width, + this.height * (ver === undefined ? hor : ver) - this.height); + } +}, new function() { + return Base.each([ + ['Top', 'Left'], ['Top', 'Right'], + ['Bottom', 'Left'], ['Bottom', 'Right'], + ['Left', 'Center'], ['Top', 'Center'], + ['Right', 'Center'], ['Bottom', 'Center'] + ], + function(parts, index) { + var part = parts.join(''); + var xFirst = /^[RL]/.test(part); + if (index >= 4) + parts[1] += xFirst ? 'Y' : 'X'; + var x = parts[xFirst ? 0 : 1], + y = parts[xFirst ? 1 : 0], + getX = 'get' + x, + getY = 'get' + y, + setX = 'set' + x, + setY = 'set' + y, + get = 'get' + part, + set = 'set' + part; + this[get] = function(_dontLink) { + var ctor = _dontLink ? Point : LinkedPoint; + return new ctor(this[getX](), this[getY](), this, set); + }; + this[set] = function() { + var point = Point.read(arguments); + this[setX](point.x); + this[setY](point.y); + }; + }, { + beans: true + }); +}); + +var LinkedRectangle = Rectangle.extend({ + initialize: function Rectangle(x, y, width, height, owner, setter) { + this.set(x, y, width, height, true); + this._owner = owner; + this._setter = setter; + }, + + set: function(x, y, width, height, _dontNotify) { + this._x = x; + this._y = y; + this._width = width; + this._height = height; + if (!_dontNotify) + this._owner[this._setter](this); + return this; + } +}, new function() { + var proto = Rectangle.prototype; + + return Base.each(['x', 'y', 'width', 'height'], function(key) { + var part = Base.capitalize(key); + var internal = '_' + key; + this['get' + part] = function() { + return this[internal]; + }; + + this['set' + part] = function(value) { + this[internal] = value; + if (!this._dontNotify) + this._owner[this._setter](this); + }; + }, Base.each(['Point', 'Size', 'Center', + 'Left', 'Top', 'Right', 'Bottom', 'CenterX', 'CenterY', + 'TopLeft', 'TopRight', 'BottomLeft', 'BottomRight', + 'LeftCenter', 'TopCenter', 'RightCenter', 'BottomCenter'], + function(key) { + var name = 'set' + key; + this[name] = function() { + this._dontNotify = true; + proto[name].apply(this, arguments); + this._dontNotify = false; + this._owner[this._setter](this); + }; + }, { + isSelected: function() { + return this._owner._boundsSelected; + }, + + setSelected: function(selected) { + var owner = this._owner; + if (owner.setSelected) { + owner._boundsSelected = selected; + owner.setSelected(selected || owner._selectedSegmentState > 0); + } + } + }) + ); +}); + +var Matrix = Base.extend({ + _class: 'Matrix', + + initialize: function Matrix(arg) { + var count = arguments.length, + ok = true; + if (count === 6) { + this.set.apply(this, arguments); + } else if (count === 1) { + if (arg instanceof Matrix) { + this.set(arg._a, arg._c, arg._b, arg._d, arg._tx, arg._ty); + } else if (Array.isArray(arg)) { + this.set.apply(this, arg); + } else { + ok = false; + } + } else if (count === 0) { + this.reset(); + } else { + ok = false; + } + if (!ok) + throw new Error('Unsupported matrix parameters'); + }, + + set: function(a, c, b, d, tx, ty, _dontNotify) { + this._a = a; + this._c = c; + this._b = b; + this._d = d; + this._tx = tx; + this._ty = ty; + if (!_dontNotify) + this._changed(); + return this; + }, + + _serialize: function(options) { + return Base.serialize(this.getValues(), options); + }, + + _changed: function() { + var owner = this._owner; + if (owner) { + if (owner._applyMatrix) { + owner.transform(null, true); + } else { + owner._changed(9); + } + } + }, + + clone: function() { + return new Matrix(this._a, this._c, this._b, this._d, + this._tx, this._ty); + }, + + equals: function(mx) { + return mx === this || mx && this._a === mx._a && this._b === mx._b + && this._c === mx._c && this._d === mx._d + && this._tx === mx._tx && this._ty === mx._ty + || false; + }, + + toString: function() { + var f = Formatter.instance; + return '[[' + [f.number(this._a), f.number(this._b), + f.number(this._tx)].join(', ') + '], [' + + [f.number(this._c), f.number(this._d), + f.number(this._ty)].join(', ') + ']]'; + }, + + reset: function(_dontNotify) { + this._a = this._d = 1; + this._c = this._b = this._tx = this._ty = 0; + if (!_dontNotify) + this._changed(); + return this; + }, + + apply: function() { + var owner = this._owner; + if (owner) { + owner.transform(null, true); + return this.isIdentity(); + } + return false; + }, + + translate: function() { + var point = Point.read(arguments), + x = point.x, + y = point.y; + this._tx += x * this._a + y * this._b; + this._ty += x * this._c + y * this._d; + this._changed(); + return this; + }, + + scale: function() { + var scale = Point.read(arguments), + center = Point.read(arguments, 0, { readNull: true }); + if (center) + this.translate(center); + this._a *= scale.x; + this._c *= scale.x; + this._b *= scale.y; + this._d *= scale.y; + if (center) + this.translate(center.negate()); + this._changed(); + return this; + }, + + rotate: function(angle ) { + angle *= Math.PI / 180; + var center = Point.read(arguments, 1), + x = center.x, + y = center.y, + cos = Math.cos(angle), + sin = Math.sin(angle), + tx = x - x * cos + y * sin, + ty = y - x * sin - y * cos, + a = this._a, + b = this._b, + c = this._c, + d = this._d; + this._a = cos * a + sin * b; + this._b = -sin * a + cos * b; + this._c = cos * c + sin * d; + this._d = -sin * c + cos * d; + this._tx += tx * a + ty * b; + this._ty += tx * c + ty * d; + this._changed(); + return this; + }, + + shear: function() { + var shear = Point.read(arguments), + center = Point.read(arguments, 0, { readNull: true }); + if (center) + this.translate(center); + var a = this._a, + c = this._c; + this._a += shear.y * this._b; + this._c += shear.y * this._d; + this._b += shear.x * a; + this._d += shear.x * c; + if (center) + this.translate(center.negate()); + this._changed(); + return this; + }, + + skew: function() { + var skew = Point.read(arguments), + center = Point.read(arguments, 0, { readNull: true }), + toRadians = Math.PI / 180, + shear = new Point(Math.tan(skew.x * toRadians), + Math.tan(skew.y * toRadians)); + return this.shear(shear, center); + }, + + concatenate: function(mx) { + var a = this._a, + b = this._b, + c = this._c, + d = this._d; + this._a = mx._a * a + mx._c * b; + this._b = mx._b * a + mx._d * b; + this._c = mx._a * c + mx._c * d; + this._d = mx._b * c + mx._d * d; + this._tx += mx._tx * a + mx._ty * b; + this._ty += mx._tx * c + mx._ty * d; + this._changed(); + return this; + }, + + preConcatenate: function(mx) { + var a = this._a, + b = this._b, + c = this._c, + d = this._d, + tx = this._tx, + ty = this._ty; + this._a = mx._a * a + mx._b * c; + this._b = mx._a * b + mx._b * d; + this._c = mx._c * a + mx._d * c; + this._d = mx._c * b + mx._d * d; + this._tx = mx._a * tx + mx._b * ty + mx._tx; + this._ty = mx._c * tx + mx._d * ty + mx._ty; + this._changed(); + return this; + }, + + isIdentity: function() { + return this._a === 1 && this._c === 0 && this._b === 0 && this._d === 1 + && this._tx === 0 && this._ty === 0; + }, + + orNullIfIdentity: function() { + return this.isIdentity() ? null : this; + }, + + isInvertible: function() { + return !!this._getDeterminant(); + }, + + isSingular: function() { + return !this._getDeterminant(); + }, + + transform: function( src, srcOffset, dst, dstOffset, count) { + return arguments.length < 5 + ? this._transformPoint(Point.read(arguments)) + : this._transformCoordinates(src, srcOffset, dst, dstOffset, count); + }, + + _transformPoint: function(point, dest, _dontNotify) { + var x = point.x, + y = point.y; + if (!dest) + dest = new Point(); + return dest.set( + x * this._a + y * this._b + this._tx, + x * this._c + y * this._d + this._ty, + _dontNotify + ); + }, + + _transformCoordinates: function(src, srcOffset, dst, dstOffset, count) { + var i = srcOffset, + j = dstOffset, + max = i + 2 * count; + while (i < max) { + var x = src[i++], + y = src[i++]; + dst[j++] = x * this._a + y * this._b + this._tx; + dst[j++] = x * this._c + y * this._d + this._ty; + } + return dst; + }, + + _transformCorners: function(rect) { + var x1 = rect.x, + y1 = rect.y, + x2 = x1 + rect.width, + y2 = y1 + rect.height, + coords = [ x1, y1, x2, y1, x2, y2, x1, y2 ]; + return this._transformCoordinates(coords, 0, coords, 0, 4); + }, + + _transformBounds: function(bounds, dest, _dontNotify) { + var coords = this._transformCorners(bounds), + min = coords.slice(0, 2), + max = coords.slice(); + for (var i = 2; i < 8; i++) { + var val = coords[i], + j = i & 1; + if (val < min[j]) + min[j] = val; + else if (val > max[j]) + max[j] = val; + } + if (!dest) + dest = new Rectangle(); + return dest.set(min[0], min[1], max[0] - min[0], max[1] - min[1], + _dontNotify); + }, + + inverseTransform: function() { + return this._inverseTransform(Point.read(arguments)); + }, + + _getDeterminant: function() { + var det = this._a * this._d - this._b * this._c; + return isFinite(det) && !Numerical.isZero(det) + && isFinite(this._tx) && isFinite(this._ty) + ? det : null; + }, + + _inverseTransform: function(point, dest, _dontNotify) { + var det = this._getDeterminant(); + if (!det) + return null; + var x = point.x - this._tx, + y = point.y - this._ty; + if (!dest) + dest = new Point(); + return dest.set( + (x * this._d - y * this._b) / det, + (y * this._a - x * this._c) / det, + _dontNotify + ); + }, + + decompose: function() { + var a = this._a, b = this._b, c = this._c, d = this._d; + if (Numerical.isZero(a * d - b * c)) + return null; + + var scaleX = Math.sqrt(a * a + b * b); + a /= scaleX; + b /= scaleX; + + var shear = a * c + b * d; + c -= a * shear; + d -= b * shear; + + var scaleY = Math.sqrt(c * c + d * d); + c /= scaleY; + d /= scaleY; + shear /= scaleY; + + if (a * d < b * c) { + a = -a; + b = -b; + shear = -shear; + scaleX = -scaleX; + } + + return { + scaling: new Point(scaleX, scaleY), + rotation: -Math.atan2(b, a) * 180 / Math.PI, + shearing: shear + }; + }, + + getValues: function() { + return [ this._a, this._c, this._b, this._d, this._tx, this._ty ]; + }, + + getTranslation: function() { + return new Point(this._tx, this._ty); + }, + + getScaling: function() { + return (this.decompose() || {}).scaling; + }, + + getRotation: function() { + return (this.decompose() || {}).rotation; + }, + + inverted: function() { + var det = this._getDeterminant(); + return det && new Matrix( + this._d / det, + -this._c / det, + -this._b / det, + this._a / det, + (this._b * this._ty - this._d * this._tx) / det, + (this._c * this._tx - this._a * this._ty) / det); + }, + + shiftless: function() { + return new Matrix(this._a, this._c, this._b, this._d, 0, 0); + }, + + applyToContext: function(ctx) { + ctx.transform(this._a, this._c, this._b, this._d, this._tx, this._ty); + } +}, Base.each(['a', 'c', 'b', 'd', 'tx', 'ty'], function(name) { + var part = Base.capitalize(name), + prop = '_' + name; + this['get' + part] = function() { + return this[prop]; + }; + this['set' + part] = function(value) { + this[prop] = value; + this._changed(); + }; +}, {})); + +var Line = Base.extend({ + _class: 'Line', + + initialize: function Line(arg0, arg1, arg2, arg3, arg4) { + var asVector = false; + if (arguments.length >= 4) { + this._px = arg0; + this._py = arg1; + this._vx = arg2; + this._vy = arg3; + asVector = arg4; + } else { + this._px = arg0.x; + this._py = arg0.y; + this._vx = arg1.x; + this._vy = arg1.y; + asVector = arg2; + } + if (!asVector) { + this._vx -= this._px; + this._vy -= this._py; + } + }, + + getPoint: function() { + return new Point(this._px, this._py); + }, + + getVector: function() { + return new Point(this._vx, this._vy); + }, + + getLength: function() { + return this.getVector().getLength(); + }, + + intersect: function(line, isInfinite) { + return Line.intersect( + this._px, this._py, this._vx, this._vy, + line._px, line._py, line._vx, line._vy, + true, isInfinite); + }, + + getSide: function(point) { + return Line.getSide( + this._px, this._py, this._vx, this._vy, + point.x, point.y, true); + }, + + getDistance: function(point) { + return Math.abs(Line.getSignedDistance( + this._px, this._py, this._vx, this._vy, + point.x, point.y, true)); + }, + + statics: { + intersect: function(apx, apy, avx, avy, bpx, bpy, bvx, bvy, asVector, + isInfinite) { + if (!asVector) { + avx -= apx; + avy -= apy; + bvx -= bpx; + bvy -= bpy; + } + var cross = bvy * avx - bvx * avy; + if (!Numerical.isZero(cross)) { + var dx = apx - bpx, + dy = apy - bpy, + ta = (bvx * dy - bvy * dx) / cross, + tb = (avx * dy - avy * dx) / cross; + if ((isInfinite || 0 <= ta && ta <= 1) + && (isInfinite || 0 <= tb && tb <= 1)) + return new Point( + apx + ta * avx, + apy + ta * avy); + } + }, + + getSide: function(px, py, vx, vy, x, y, asVector) { + if (!asVector) { + vx -= px; + vy -= py; + } + var v2x = x - px, + v2y = y - py, + ccw = v2x * vy - v2y * vx; + if (ccw === 0) { + ccw = v2x * vx + v2y * vy; + if (ccw > 0) { + v2x -= vx; + v2y -= vy; + ccw = v2x * vx + v2y * vy; + if (ccw < 0) + ccw = 0; + } + } + return ccw < 0 ? -1 : ccw > 0 ? 1 : 0; + }, + + getSignedDistance: function(px, py, vx, vy, x, y, asVector) { + if (!asVector) { + vx -= px; + vy -= py; + } + var m = vy / vx, + b = py - m * px; + return (y - (m * x) - b) / Math.sqrt(m * m + 1); + } + } +}); + +var Project = PaperScopeItem.extend({ + _class: 'Project', + _list: 'projects', + _reference: 'project', + + initialize: function Project(element) { + PaperScopeItem.call(this, true); + this.layers = []; + this.symbols = []; + this._currentStyle = new Style(null, null, this); + this.activeLayer = new Layer(); + this._view = View.create(this, + element || CanvasProvider.getCanvas(1, 1)); + this._selectedItems = {}; + this._selectedItemCount = 0; + this._updateVersion = 0; + }, + + _serialize: function(options, dictionary) { + return Base.serialize(this.layers, options, true, dictionary); + }, + + clear: function() { + for (var i = this.layers.length - 1; i >= 0; i--) + this.layers[i].remove(); + this.symbols = []; + }, + + isEmpty: function() { + return this.layers.length <= 1 + && (!this.activeLayer || this.activeLayer.isEmpty()); + }, + + remove: function remove() { + if (!remove.base.call(this)) + return false; + if (this._view) + this._view.remove(); + return true; + }, + + getView: function() { + return this._view; + }, + + getCurrentStyle: function() { + return this._currentStyle; + }, + + setCurrentStyle: function(style) { + this._currentStyle.initialize(style); + }, + + getIndex: function() { + return this._index; + }, + + addChild: function(child) { + if (child instanceof Layer) { + Base.splice(this.layers, [child]); + if (!this.activeLayer) + this.activeLayer = child; + } else if (child instanceof Item) { + (this.activeLayer + || this.addChild(new Layer(Item.NO_INSERT))).addChild(child); + } else { + child = null; + } + return child; + }, + + getSelectedItems: function() { + var items = []; + for (var id in this._selectedItems) { + var item = this._selectedItems[id]; + if (item.isInserted()) + items.push(item); + } + return items; + }, + + getOptions: function() { + return this._scope.settings; + }, + + _updateSelection: function(item) { + var id = item._id, + selectedItems = this._selectedItems; + if (item._selected) { + if (selectedItems[id] !== item) { + this._selectedItemCount++; + selectedItems[id] = item; + } + } else if (selectedItems[id] === item) { + this._selectedItemCount--; + delete selectedItems[id]; + } + }, + + selectAll: function() { + var layers = this.layers; + for (var i = 0, l = layers.length; i < l; i++) + layers[i].setFullySelected(true); + }, + + deselectAll: function() { + var selectedItems = this._selectedItems; + for (var i in selectedItems) + selectedItems[i].setFullySelected(false); + }, + + hitTest: function() { + var point = Point.read(arguments), + options = HitResult.getOptions(Base.read(arguments)); + for (var i = this.layers.length - 1; i >= 0; i--) { + var res = this.layers[i].hitTest(point, options); + if (res) return res; + } + return null; + }, + + getItems: function(match) { + return Item._getItems(this.layers, match, true); + }, + + getItem: function(match) { + return Item._getItems(this.layers, match, false); + }, + + importJSON: function(json) { + this.activate(); + var layer = this.activeLayer; + return Base.importJSON(json, layer && layer.isEmpty() && layer); + }, + + draw: function(ctx, matrix, pixelRatio) { + this._updateVersion++; + ctx.save(); + matrix.applyToContext(ctx); + var param = new Base({ + offset: new Point(0, 0), + pixelRatio: pixelRatio, + trackTransforms: true, + transforms: [matrix] + }); + for (var i = 0, l = this.layers.length; i < l; i++) + this.layers[i].draw(ctx, param); + ctx.restore(); + + if (this._selectedItemCount > 0) { + ctx.save(); + ctx.strokeWidth = 1; + for (var id in this._selectedItems) { + var item = this._selectedItems[id], + globalMatrix = item._globalMatrix, + size = this._scope.settings.handleSize, + half = size / 2; + if (item._updateVersion === this._updateVersion + && (item._drawSelected || item._boundsSelected) + && globalMatrix) { + var color = item.getSelectedColor() + || item.getLayer().getSelectedColor(); + ctx.strokeStyle = ctx.fillStyle = color + ? color.toCanvasStyle(ctx) : '#009dec'; + if (item._drawSelected) + item._drawSelected(ctx, globalMatrix); + if (item._boundsSelected) { + var coords = globalMatrix._transformCorners( + item.getInternalBounds()); + ctx.beginPath(); + for (var i = 0; i < 8; i++) + ctx[i === 0 ? 'moveTo' : 'lineTo']( + coords[i], coords[++i]); + ctx.closePath(); + ctx.stroke(); + for (var i = 0; i < 8; i++) + ctx.fillRect(coords[i] - half, coords[++i] - half, + size, size); + } + } + } + ctx.restore(); + } + } +}); + +var Symbol = Base.extend({ + _class: 'Symbol', + + initialize: function Symbol(item, dontCenter) { + this._id = Symbol._id = (Symbol._id || 0) + 1; + this.project = paper.project; + this.project.symbols.push(this); + if (item) + this.setDefinition(item, dontCenter); + }, + + _serialize: function(options, dictionary) { + return dictionary.add(this, function() { + return Base.serialize([this._class, this._definition], + options, false, dictionary); + }); + }, + + _changed: function(flags) { + if (flags & 8) { + Item._clearBoundsCache(this); + } + if (flags & 1) { + this.project._needsUpdate = true; + } + }, + + getDefinition: function() { + return this._definition; + }, + + setDefinition: function(item, _dontCenter) { + if (item._parentSymbol) + item = item.clone(); + if (this._definition) + this._definition._parentSymbol = null; + this._definition = item; + item.remove(); + item.setSelected(false); + if (!_dontCenter) + item.setPosition(new Point()); + item._parentSymbol = this; + this._changed(9); + }, + + place: function(position) { + return new PlacedSymbol(this, position); + }, + + clone: function() { + return new Symbol(this._definition.clone(false)); + } +}); + +var Item = Base.extend(Callback, { + statics: { + extend: function extend(src) { + if (src._serializeFields) + src._serializeFields = new Base( + this.prototype._serializeFields, src._serializeFields); + return extend.base.apply(this, arguments); + }, + + NO_INSERT: { insert: false } + }, + + _class: 'Item', + _applyMatrix: true, + _canApplyMatrix: true, + _boundsSelected: false, + _selectChildren: false, + _serializeFields: { + name: null, + matrix: new Matrix(), + pivot: null, + locked: false, + visible: true, + blendMode: 'normal', + opacity: 1, + guide: false, + selected: false, + clipMask: false, + applyMatrix: null, + data: {} + }, + + initialize: function Item() { + }, + + _initialize: function(props, point) { + var internal = props && props.internal === true, + matrix = this._matrix = new Matrix(), + project = paper.project; + if (!internal) + this._id = Item._id = (Item._id || 0) + 1; + this._applyMatrix = this._canApplyMatrix && paper.settings.applyMatrix; + if (point) + matrix.translate(point); + matrix._owner = this; + this._style = new Style(project._currentStyle, this, project); + if (!this._project) { + if (internal || props && props.insert === false) { + this._setProject(project); + } else { + (project.activeLayer || new Layer()).addChild(this); + } + } + return props && props !== Item.NO_INSERT + ? this._set(props, { insert: true }) + : true; + }, + + _events: new function() { + + var mouseFlags = { + mousedown: { + mousedown: 1, + mousedrag: 1, + click: 1, + doubleclick: 1 + }, + mouseup: { + mouseup: 1, + mousedrag: 1, + click: 1, + doubleclick: 1 + }, + mousemove: { + mousedrag: 1, + mousemove: 1, + mouseenter: 1, + mouseleave: 1 + } + }; + + var mouseEvent = { + install: function(type) { + var counters = this.getView()._eventCounters; + if (counters) { + for (var key in mouseFlags) { + counters[key] = (counters[key] || 0) + + (mouseFlags[key][type] || 0); + } + } + }, + uninstall: function(type) { + var counters = this.getView()._eventCounters; + if (counters) { + for (var key in mouseFlags) + counters[key] -= mouseFlags[key][type] || 0; + } + } + }; + + return Base.each(['onMouseDown', 'onMouseUp', 'onMouseDrag', 'onClick', + 'onDoubleClick', 'onMouseMove', 'onMouseEnter', 'onMouseLeave'], + function(name) { + this[name] = mouseEvent; + }, { + onFrame: { + install: function() { + this._animateItem(true); + }, + uninstall: function() { + this._animateItem(false); + } + }, + + onLoad: {} + } + ); + }, + + _animateItem: function(animate) { + this.getView()._animateItem(this, animate); + }, + + _serialize: function(options, dictionary) { + var props = {}, + that = this; + + function serialize(fields) { + for (var key in fields) { + var value = that[key]; + if (!Base.equals(value, key === 'leading' + ? fields.fontSize * 1.2 : fields[key])) { + props[key] = Base.serialize(value, options, + key !== 'data', dictionary); + } + } + } + + serialize(this._serializeFields); + if (!(this instanceof Group)) + serialize(this._style._defaults); + return [ this._class, props ]; + }, + + _changed: function(flags) { + var symbol = this._parentSymbol, + cacheParent = this._parent || symbol, + project = this._project; + if (flags & 8) { + this._bounds = this._position = this._decomposed = + this._globalMatrix = this._currentPath = undefined; + } + if (cacheParent && (flags + & (8 | 32))) { + Item._clearBoundsCache(cacheParent); + } + if (flags & 2) { + Item._clearBoundsCache(this); + } + if (project) { + if (flags & 1) { + project._needsUpdate = true; + } + if (project._changes) { + var entry = project._changesById[this._id]; + if (entry) { + entry.flags |= flags; + } else { + entry = { item: this, flags: flags }; + project._changesById[this._id] = entry; + project._changes.push(entry); + } + } + } + if (symbol) + symbol._changed(flags); + }, + + set: function(props) { + if (props) + this._set(props, { insert: true }); + return this; + }, + + getId: function() { + return this._id; + }, + + getClassName: function() { + return this._class; + }, + + getName: function() { + return this._name; + }, + + setName: function(name, unique) { + + if (this._name) + this._removeNamed(); + if (name === (+name) + '') + throw new Error( + 'Names consisting only of numbers are not supported.'); + if (name && this._parent) { + var children = this._parent._children, + namedChildren = this._parent._namedChildren, + orig = name, + i = 1; + while (unique && children[name]) + name = orig + ' ' + (i++); + (namedChildren[name] = namedChildren[name] || []).push(this); + children[name] = this; + } + this._name = name || undefined; + this._changed(128); + }, + + getStyle: function() { + return this._style; + }, + + setStyle: function(style) { + this.getStyle().set(style); + }, + + hasFill: function() { + return this.getStyle().hasFill(); + }, + + hasStroke: function() { + return this.getStyle().hasStroke(); + }, + + hasShadow: function() { + return this.getStyle().hasShadow(); + } +}, Base.each(['locked', 'visible', 'blendMode', 'opacity', 'guide'], + function(name) { + var part = Base.capitalize(name), + name = '_' + name; + this['get' + part] = function() { + return this[name]; + }; + this['set' + part] = function(value) { + if (value != this[name]) { + this[name] = value; + this._changed(name === '_locked' + ? 128 : 129); + } + }; +}, {}), { + beans: true, + + _locked: false, + + _visible: true, + + _blendMode: 'normal', + + _opacity: 1, + + _guide: false, + + isSelected: function() { + if (this._selectChildren) { + for (var i = 0, l = this._children.length; i < l; i++) + if (this._children[i].isSelected()) + return true; + } + return this._selected; + }, + + setSelected: function(selected, noChildren) { + if (!noChildren && this._selectChildren) { + for (var i = 0, l = this._children.length; i < l; i++) + this._children[i].setSelected(selected); + } + if ((selected = !!selected) ^ this._selected) { + this._selected = selected; + this._project._updateSelection(this); + this._changed(129); + } + }, + + _selected: false, + + isFullySelected: function() { + if (this._children && this._selected) { + for (var i = 0, l = this._children.length; i < l; i++) + if (!this._children[i].isFullySelected()) + return false; + return true; + } + return this._selected; + }, + + setFullySelected: function(selected) { + if (this._children) { + for (var i = 0, l = this._children.length; i < l; i++) + this._children[i].setFullySelected(selected); + } + this.setSelected(selected, true); + }, + + isClipMask: function() { + return this._clipMask; + }, + + setClipMask: function(clipMask) { + if (this._clipMask != (clipMask = !!clipMask)) { + this._clipMask = clipMask; + if (clipMask) { + this.setFillColor(null); + this.setStrokeColor(null); + } + this._changed(129); + if (this._parent) + this._parent._changed(1024); + } + }, + + _clipMask: false, + + getData: function() { + if (!this._data) + this._data = {}; + return this._data; + }, + + setData: function(data) { + this._data = data; + }, + + getPosition: function(_dontLink) { + var position = this._position, + ctor = _dontLink ? Point : LinkedPoint; + if (!position) { + var pivot = this._pivot; + position = this._position = pivot + ? this._matrix._transformPoint(pivot) + : this.getBounds().getCenter(true); + } + return new ctor(position.x, position.y, this, 'setPosition'); + }, + + setPosition: function() { + this.translate(Point.read(arguments).subtract(this.getPosition(true))); + }, + + getPivot: function(_dontLink) { + var pivot = this._pivot; + if (pivot) { + var ctor = _dontLink ? Point : LinkedPoint; + pivot = new ctor(pivot.x, pivot.y, this, 'setAnchor'); + } + return pivot; + }, + + setPivot: function() { + this._pivot = Point.read(arguments); + this._position = undefined; + }, + + _pivot: null, + + getRegistration: '#getPivot', + setRegistration: '#setPivot' +}, Base.each(['bounds', 'strokeBounds', 'handleBounds', 'roughBounds', + 'internalBounds', 'internalRoughBounds'], + function(key) { + var getter = 'get' + Base.capitalize(key), + match = key.match(/^internal(.*)$/), + internalGetter = match ? 'get' + match[1] : null; + this[getter] = function(_matrix) { + var boundsGetter = this._boundsGetter, + name = !internalGetter && (typeof boundsGetter === 'string' + ? boundsGetter : boundsGetter && boundsGetter[getter]) + || getter, + bounds = this._getCachedBounds(name, _matrix, null, + internalGetter); + return key === 'bounds' + ? new LinkedRectangle(bounds.x, bounds.y, bounds.width, + bounds.height, this, 'setBounds') + : bounds; + }; + }, +{ + beans: true, + + _getBounds: function(getter, matrix, cacheItem) { + var children = this._children; + if (!children || children.length == 0) + return new Rectangle(); + var x1 = Infinity, + x2 = -x1, + y1 = x1, + y2 = x2; + for (var i = 0, l = children.length; i < l; i++) { + var child = children[i]; + if (child._visible && !child.isEmpty()) { + var rect = child._getCachedBounds(getter, matrix, cacheItem); + x1 = Math.min(rect.x, x1); + y1 = Math.min(rect.y, y1); + x2 = Math.max(rect.x + rect.width, x2); + y2 = Math.max(rect.y + rect.height, y2); + } + } + return isFinite(x1) + ? new Rectangle(x1, y1, x2 - x1, y2 - y1) + : new Rectangle(); + }, + + setBounds: function() { + var rect = Rectangle.read(arguments), + bounds = this.getBounds(), + matrix = new Matrix(), + center = rect.getCenter(); + matrix.translate(center); + if (rect.width != bounds.width || rect.height != bounds.height) { + matrix.scale( + bounds.width != 0 ? rect.width / bounds.width : 1, + bounds.height != 0 ? rect.height / bounds.height : 1); + } + center = bounds.getCenter(); + matrix.translate(-center.x, -center.y); + this.transform(matrix); + }, + + _getCachedBounds: function(getter, matrix, cacheItem, internalGetter) { + matrix = matrix && matrix.orNullIfIdentity(); + var _matrix = internalGetter ? null : this._matrix.orNullIfIdentity(), + cache = (!matrix || matrix.equals(_matrix)) && getter; + var cacheParent = this._parent || this._parentSymbol; + if (cacheItem && cacheParent) { + var id = cacheItem._id, + ref = cacheParent._boundsCache = cacheParent._boundsCache || { + ids: {}, + list: [] + }; + if (!ref.ids[id]) { + ref.list.push(cacheItem); + ref.ids[id] = cacheItem; + } + } + if (cache && this._bounds && this._bounds[cache]) + return this._bounds[cache].clone(); + matrix = !matrix + ? _matrix + : _matrix + ? matrix.clone().concatenate(_matrix) + : matrix; + var bounds = this._getBounds(internalGetter || getter, matrix, + cache ? this : cacheItem); + if (cache) { + if (!this._bounds) + this._bounds = {}; + var cached = this._bounds[cache] = bounds.clone(); + cached._internal = !!internalGetter; + } + return bounds; + }, + + statics: { + _clearBoundsCache: function(item) { + if (item._boundsCache) { + for (var i = 0, list = item._boundsCache.list, l = list.length; + i < l; i++) { + var child = list[i]; + child._bounds = child._position = undefined; + if (child !== item && child._boundsCache) + Item._clearBoundsCache(child); + } + item._boundsCache = undefined; + } + } + } + +}), { + beans: true, + + _decompose: function() { + return this._decomposed = this._matrix.decompose(); + }, + + getRotation: function() { + var decomposed = this._decomposed || this._decompose(); + return decomposed && decomposed.rotation; + }, + + setRotation: function(rotation) { + var current = this.getRotation(); + if (current != null && rotation != null) { + var decomposed = this._decomposed; + this.rotate(rotation - current); + decomposed.rotation = rotation; + this._decomposed = decomposed; + } + }, + + getScaling: function() { + var decomposed = this._decomposed || this._decompose(); + return decomposed && decomposed.scaling; + }, + + setScaling: function() { + var current = this.getScaling(); + if (current != null) { + var scaling = Point.read(arguments, 0, { clone: true }), + decomposed = this._decomposed; + this.scale(scaling.x / current.x, scaling.y / current.y); + decomposed.scaling = scaling; + this._decomposed = decomposed; + } + }, + + getMatrix: function() { + return this._matrix; + }, + + setMatrix: function(matrix) { + this._matrix.initialize(matrix); + if (this._applyMatrix) { + this.transform(null, true); + } else { + this._changed(9); + } + }, + + getGlobalMatrix: function(_internal) { + var matrix = this._globalMatrix, + updateVersion = this._project._updateVersion, + viewMatrix = this.getView()._matrix; + if (matrix && matrix._updateVersion !== updateVersion) + matrix = null; + if (!matrix) { + matrix = this._globalMatrix = this._matrix.clone(); + matrix.preConcatenate(this._parent + ? this._parent.getGlobalMatrix(true) + : viewMatrix); + matrix._updateVersion = updateVersion; + } + return _internal ? matrix : viewMatrix.inverted().concatenate(matrix); + }, + + getApplyMatrix: function() { + return this._applyMatrix; + }, + + setApplyMatrix: function(transform) { + if (this._applyMatrix = this._canApplyMatrix && !!transform) + this.transform(null, true); + }, + + getTransformContent: '#getApplyMatrix', + setTransformContent: '#setApplyMatrix', +}, { + getProject: function() { + return this._project; + }, + + _setProject: function(project, installEvents) { + if (this._project !== project) { + if (this._project) + this._installEvents(false); + this._project = project; + var children = this._children; + for (var i = 0, l = children && children.length; i < l; i++) + children[i]._setProject(project); + installEvents = true; + } + if (installEvents) + this._installEvents(true); + }, + + getView: function() { + return this._project.getView(); + }, + + _installEvents: function _installEvents(install) { + _installEvents.base.call(this, install); + var children = this._children; + for (var i = 0, l = children && children.length; i < l; i++) + children[i]._installEvents(install); + }, + + getLayer: function() { + var parent = this; + while (parent = parent._parent) { + if (parent instanceof Layer) + return parent; + } + return null; + }, + + getParent: function() { + return this._parent; + }, + + setParent: function(item) { + return item.addChild(this); + }, + + getChildren: function() { + return this._children; + }, + + setChildren: function(items) { + this.removeChildren(); + this.addChildren(items); + }, + + getFirstChild: function() { + return this._children && this._children[0] || null; + }, + + getLastChild: function() { + return this._children && this._children[this._children.length - 1] + || null; + }, + + getNextSibling: function() { + return this._parent && this._parent._children[this._index + 1] || null; + }, + + getPreviousSibling: function() { + return this._parent && this._parent._children[this._index - 1] || null; + }, + + getIndex: function() { + return this._index; + }, + + isInserted: function() { + return this._parent ? this._parent.isInserted() : false; + }, + + equals: function(item) { + return item === this || item && this._class === item._class + && this._style.equals(item._style) + && this._matrix.equals(item._matrix) + && this._locked === item._locked + && this._visible === item._visible + && this._blendMode === item._blendMode + && this._opacity === item._opacity + && this._clipMask === item._clipMask + && this._guide === item._guide + && this._equals(item) + || false; + }, + + _equals: function(item) { + return Base.equals(this._children, item._children); + }, + + clone: function(insert) { + return this._clone(new this.constructor(Item.NO_INSERT), insert); + }, + + _clone: function(copy, insert) { + copy.setStyle(this._style); + if (this._children) { + for (var i = 0, l = this._children.length; i < l; i++) + copy.addChild(this._children[i].clone(false), true); + } + if (insert || insert === undefined) + copy.insertAbove(this); + var keys = ['_locked', '_visible', '_blendMode', '_opacity', + '_clipMask', '_guide', '_applyMatrix']; + for (var i = 0, l = keys.length; i < l; i++) { + var key = keys[i]; + if (this.hasOwnProperty(key)) + copy[key] = this[key]; + } + copy._matrix.initialize(this._matrix); + copy._data = this._data ? Base.clone(this._data) : null; + copy.setSelected(this._selected); + if (this._name) + copy.setName(this._name, true); + return copy; + }, + + copyTo: function(itemOrProject) { + return itemOrProject.addChild(this.clone(false)); + }, + + rasterize: function(resolution) { + var bounds = this.getStrokeBounds(), + scale = (resolution || this.getView().getResolution()) / 72, + topLeft = bounds.getTopLeft().floor(), + bottomRight = bounds.getBottomRight().ceil(), + size = new Size(bottomRight.subtract(topLeft)), + canvas = CanvasProvider.getCanvas(size.multiply(scale)), + ctx = canvas.getContext('2d'), + matrix = new Matrix().scale(scale).translate(topLeft.negate()); + ctx.save(); + matrix.applyToContext(ctx); + this.draw(ctx, new Base({ transforms: [matrix] })); + ctx.restore(); + var raster = new Raster(Item.NO_INSERT); + raster.setCanvas(canvas); + raster.transform(new Matrix().translate(topLeft.add(size.divide(2))) + .scale(1 / scale)); + raster.insertAbove(this); + return raster; + }, + + contains: function() { + return !!this._contains( + this._matrix._inverseTransform(Point.read(arguments))); + }, + + _contains: function(point) { + if (this._children) { + for (var i = this._children.length - 1; i >= 0; i--) { + if (this._children[i].contains(point)) + return true; + } + return false; + } + return point.isInside(this.getInternalBounds()); + }, + + hitTest: function(point, options) { + point = Point.read(arguments); + options = HitResult.getOptions(Base.read(arguments)); + if (this._locked || !this._visible || this._guide && !options.guides + || this.isEmpty()) + return null; + + var matrix = this._matrix, + parentTotalMatrix = options._totalMatrix, + view = this.getView(), + totalMatrix = options._totalMatrix = parentTotalMatrix + ? parentTotalMatrix.clone().concatenate(matrix) + : this.getGlobalMatrix().clone().preConcatenate( + view._matrix), + tolerancePadding = options._tolerancePadding = new Size( + Path._getPenPadding(1, totalMatrix.inverted()) + ).multiply( + Math.max(options.tolerance, 0.00001) + ); + point = matrix._inverseTransform(point); + + if (!this._children && !this.getInternalRoughBounds() + .expand(tolerancePadding.multiply(2))._containsPoint(point)) + return null; + var type, + checkSelf = !(options.guides && !this._guide + || options.selected && !this._selected + || (type = options.type) && (typeof type === 'string' + ? type !== Base.hyphenate(this._class) + : !(this instanceof type))), + that = this, + res; + + function checkBounds(type, part) { + var pt = bounds['get' + part](); + if (point.subtract(pt).divide(tolerancePadding).length <= 1) + return new HitResult(type, that, + { name: Base.hyphenate(part), point: pt }); + } + + if (checkSelf && (options.center || options.bounds) && this._parent) { + var bounds = this.getInternalBounds(); + if (options.center) + res = checkBounds('center', 'Center'); + if (!res && options.bounds) { + var points = [ + 'TopLeft', 'TopRight', 'BottomLeft', 'BottomRight', + 'LeftCenter', 'TopCenter', 'RightCenter', 'BottomCenter' + ]; + for (var i = 0; i < 8 && !res; i++) + res = checkBounds('bounds', points[i]); + } + } + + var children = !res && this._children; + if (children) { + var opts = this._getChildHitTestOptions(options); + for (var i = children.length - 1; i >= 0 && !res; i--) + res = children[i].hitTest(point, opts); + } + if (!res && checkSelf) + res = this._hitTest(point, options); + if (res && res.point) + res.point = matrix.transform(res.point); + options._totalMatrix = parentTotalMatrix; + return res; + }, + + _getChildHitTestOptions: function(options) { + return options; + }, + + _hitTest: function(point, options) { + if (options.fill && this.hasFill() && this._contains(point)) + return new HitResult('fill', this); + } +}, { + matches: function(match) { + function matchObject(obj1, obj2) { + for (var i in obj1) { + if (obj1.hasOwnProperty(i)) { + var val1 = obj1[i], + val2 = obj2[i]; + if (Base.isPlainObject(val1) && Base.isPlainObject(val2)) { + if (!matchObject(val1, val2)) + return false; + } else if (!Base.equals(val1, val2)) { + return false; + } + } + } + return true; + } + for (var key in match) { + if (match.hasOwnProperty(key)) { + var value = this[key], + compare = match[key]; + if (value === undefined && key === 'type') + value = Base.hyphenate(this._class); + if (/^(constructor|class)$/.test(key)) { + if (!(this instanceof compare)) + return false; + } else if (compare instanceof RegExp) { + if (!compare.test(value)) + return false; + } else if (typeof compare === 'function') { + if (!compare(value)) + return false; + } else if (Base.isPlainObject(compare)) { + if (!matchObject(compare, value)) + return false; + } else if (!Base.equals(value, compare)) { + return false; + } + } + } + return true; + }, + + getItems: function(match) { + return Item._getItems(this._children, match, true); + }, + + getItem: function(match) { + return Item._getItems(this._children, match, false); + }, + + statics: { + _getItems: function _getItems(children, match, list) { + var items = list && []; + for (var i = 0, l = children && children.length; i < l; i++) { + var child = children[i]; + if (child.matches(match)) { + if (list) { + items.push(child); + } else { + return child; + } + } + var res = _getItems(child._children, match, list); + if (list) { + items.push.apply(items, res); + } else if (res) { + return res; + } + } + return list ? items : null; + } + } +}, { + + importJSON: function(json) { + var res = Base.importJSON(json, this); + return res !== this + ? this.addChild(res) + : res; + }, + + addChild: function(item, _preserve) { + return this.insertChild(undefined, item, _preserve); + }, + + insertChild: function(index, item, _preserve) { + var res = this.insertChildren(index, [item], _preserve); + return res && res[0]; + }, + + addChildren: function(items, _preserve) { + return this.insertChildren(this._children.length, items, _preserve); + }, + + insertChildren: function(index, items, _preserve, _proto) { + var children = this._children; + if (children && items && items.length > 0) { + items = Array.prototype.slice.apply(items); + for (var i = items.length - 1; i >= 0; i--) { + var item = items[i]; + if (_proto && !(item instanceof _proto)) { + items.splice(i, 1); + } else { + item._remove(false, true); + } + } + Base.splice(children, items, index, 0); + var project = this._project, + notifySelf = project && project._changes; + for (var i = 0, l = items.length; i < l; i++) { + var item = items[i]; + item._parent = this; + item._setProject(this._project, true); + if (item._name) + item.setName(item._name); + if (notifySelf) + this._changed(5); + } + this._changed(11); + } else { + items = null; + } + return items; + }, + + _insert: function(above, item, _preserve) { + if (!item._parent) + return null; + var index = item._index + (above ? 1 : 0); + if (item._parent === this._parent && index > this._index) + index--; + return item._parent.insertChild(index, this, _preserve); + }, + + insertAbove: function(item, _preserve) { + return this._insert(true, item, _preserve); + }, + + insertBelow: function(item, _preserve) { + return this._insert(false, item, _preserve); + }, + + sendToBack: function() { + return this._parent.insertChild(0, this); + }, + + bringToFront: function() { + return this._parent.addChild(this); + }, + + appendTop: '#addChild', + + appendBottom: function(item) { + return this.insertChild(0, item); + }, + + moveAbove: '#insertAbove', + + moveBelow: '#insertBelow', + + reduce: function() { + if (this._children && this._children.length === 1) { + var child = this._children[0].reduce(); + child.insertAbove(this); + child.setStyle(this._style); + this.remove(); + return child; + } + return this; + }, + + _removeNamed: function() { + var children = this._parent._children, + namedChildren = this._parent._namedChildren, + name = this._name, + namedArray = namedChildren[name], + index = namedArray ? namedArray.indexOf(this) : -1; + if (index == -1) + return; + if (children[name] == this) + delete children[name]; + namedArray.splice(index, 1); + if (namedArray.length) { + children[name] = namedArray[namedArray.length - 1]; + } else { + delete namedChildren[name]; + } + }, + + _remove: function(notifySelf, notifyParent) { + var parent = this._parent; + if (parent) { + if (this._name) + this._removeNamed(); + if (this._index != null) + Base.splice(parent._children, null, this._index, 1); + this._installEvents(false); + if (notifySelf) { + var project = this._project; + if (project && project._changes) + this._changed(5); + } + if (notifyParent) + parent._changed(11); + this._parent = null; + return true; + } + return false; + }, + + remove: function() { + return this._remove(true, true); + }, + + removeChildren: function(from, to) { + if (!this._children) + return null; + from = from || 0; + to = Base.pick(to, this._children.length); + var removed = Base.splice(this._children, null, from, to - from); + for (var i = removed.length - 1; i >= 0; i--) { + removed[i]._remove(true, false); + } + if (removed.length > 0) + this._changed(11); + return removed; + }, + + clear: '#removeChildren', + + reverseChildren: function() { + if (this._children) { + this._children.reverse(); + for (var i = 0, l = this._children.length; i < l; i++) + this._children[i]._index = i; + this._changed(11); + } + }, + + isEmpty: function() { + return !this._children || this._children.length == 0; + }, + + isEditable: function() { + var item = this; + while (item) { + if (!item._visible || item._locked) + return false; + item = item._parent; + } + return true; + }, + + _getOrder: function(item) { + function getList(item) { + var list = []; + do { + list.unshift(item); + } while (item = item._parent); + return list; + } + var list1 = getList(this), + list2 = getList(item); + for (var i = 0, l = Math.min(list1.length, list2.length); i < l; i++) { + if (list1[i] != list2[i]) { + return list1[i]._index < list2[i]._index ? 1 : -1; + } + } + return 0; + }, + + hasChildren: function() { + return this._children && this._children.length > 0; + }, + + isAbove: function(item) { + return this._getOrder(item) === -1; + }, + + isBelow: function(item) { + return this._getOrder(item) === 1; + }, + + isParent: function(item) { + return this._parent === item; + }, + + isChild: function(item) { + return item && item._parent === this; + }, + + isDescendant: function(item) { + var parent = this; + while (parent = parent._parent) { + if (parent == item) + return true; + } + return false; + }, + + isAncestor: function(item) { + return item ? item.isDescendant(this) : false; + }, + + isGroupedWith: function(item) { + var parent = this._parent; + while (parent) { + if (parent._parent + && /^(Group|Layer|CompoundPath)$/.test(parent._class) + && item.isDescendant(parent)) + return true; + parent = parent._parent; + } + return false; + }, + + translate: function() { + var mx = new Matrix(); + return this.transform(mx.translate.apply(mx, arguments)); + }, + + rotate: function(angle ) { + return this.transform(new Matrix().rotate(angle, + Point.read(arguments, 1, { readNull: true }) + || this.getPosition(true))); + } +}, Base.each(['scale', 'shear', 'skew'], function(name) { + this[name] = function() { + var point = Point.read(arguments), + center = Point.read(arguments, 0, { readNull: true }); + return this.transform(new Matrix()[name](point, + center || this.getPosition(true))); + }; +}, { + +}), { + transform: function(matrix, _applyMatrix) { + if (matrix && matrix.isIdentity()) + matrix = null; + var _matrix = this._matrix, + applyMatrix = (_applyMatrix || this._applyMatrix) + && (!_matrix.isIdentity() || matrix); + if (!matrix && !applyMatrix) + return this; + if (matrix) + _matrix.preConcatenate(matrix); + if (applyMatrix = applyMatrix && this._transformContent(_matrix)) { + var pivot = this._pivot, + style = this._style, + fillColor = style.getFillColor(true), + strokeColor = style.getStrokeColor(true); + if (pivot) + pivot.transform(_matrix); + if (fillColor) + fillColor.transform(_matrix); + if (strokeColor) + strokeColor.transform(_matrix); + _matrix.reset(true); + } + var bounds = this._bounds, + position = this._position; + this._changed(9); + var decomp = bounds && matrix && matrix.decompose(); + if (decomp && !decomp.shearing && decomp.rotation % 90 === 0) { + for (var key in bounds) { + var rect = bounds[key]; + if (applyMatrix || !rect._internal) + matrix._transformBounds(rect, rect); + } + var getter = this._boundsGetter, + rect = bounds[getter && getter.getBounds || getter || 'getBounds']; + if (rect) + this._position = rect.getCenter(true); + this._bounds = bounds; + } else if (matrix && position) { + this._position = matrix._transformPoint(position, position); + } + return this; + }, + + _transformContent: function(matrix) { + var children = this._children; + if (children) { + for (var i = 0, l = children.length; i < l; i++) + children[i].transform(matrix, true); + return true; + } + }, + + globalToLocal: function() { + var matrix = this.getGlobalMatrix(); + return matrix && matrix._inverseTransform(Point.read(arguments)); + }, + + localToGlobal: function() { + var matrix = this.getGlobalMatrix(); + return matrix && matrix._transformPoint(Point.read(arguments)); + }, + + fitBounds: function(rectangle, fill) { + rectangle = Rectangle.read(arguments); + var bounds = this.getBounds(), + itemRatio = bounds.height / bounds.width, + rectRatio = rectangle.height / rectangle.width, + scale = (fill ? itemRatio > rectRatio : itemRatio < rectRatio) + ? rectangle.width / bounds.width + : rectangle.height / bounds.height, + newBounds = new Rectangle(new Point(), + new Size(bounds.width * scale, bounds.height * scale)); + newBounds.setCenter(rectangle.getCenter()); + this.setBounds(newBounds); + }, + + _setStyles: function(ctx) { + var style = this._style, + fillColor = style.getFillColor(), + strokeColor = style.getStrokeColor(), + shadowColor = style.getShadowColor(); + if (fillColor) + ctx.fillStyle = fillColor.toCanvasStyle(ctx); + if (strokeColor) { + var strokeWidth = style.getStrokeWidth(); + if (strokeWidth > 0) { + ctx.strokeStyle = strokeColor.toCanvasStyle(ctx); + ctx.lineWidth = strokeWidth; + var strokeJoin = style.getStrokeJoin(), + strokeCap = style.getStrokeCap(), + miterLimit = style.getMiterLimit(); + if (strokeJoin) + ctx.lineJoin = strokeJoin; + if (strokeCap) + ctx.lineCap = strokeCap; + if (miterLimit) + ctx.miterLimit = miterLimit; + if (paper.support.nativeDash) { + var dashArray = style.getDashArray(), + dashOffset = style.getDashOffset(); + if (dashArray && dashArray.length) { + if ('setLineDash' in ctx) { + ctx.setLineDash(dashArray); + ctx.lineDashOffset = dashOffset; + } else { + ctx.mozDash = dashArray; + ctx.mozDashOffset = dashOffset; + } + } + } + } + } + if (shadowColor) { + var shadowBlur = style.getShadowBlur(); + if (shadowBlur > 0) { + ctx.shadowColor = shadowColor.toCanvasStyle(ctx); + ctx.shadowBlur = shadowBlur; + var offset = this.getShadowOffset(); + ctx.shadowOffsetX = offset.x; + ctx.shadowOffsetY = offset.y; + } + } + }, + + draw: function(ctx, param) { + if (!this._visible || this._opacity === 0) + return; + var updateVersion = this._updateVersion = this._project._updateVersion; + var trackTransforms = param.trackTransforms, + transforms = param.transforms, + matrix = this._matrix, + parentMatrix = transforms[transforms.length - 1], + globalMatrix = parentMatrix.clone().concatenate(matrix); + if (!globalMatrix.isInvertible()) + return; + if (trackTransforms) { + transforms.push(this._globalMatrix = globalMatrix); + globalMatrix._updateVersion = updateVersion; + } + + var blendMode = this._blendMode, + opacity = this._opacity, + normalBlend = blendMode === 'normal', + nativeBlend = BlendMode.nativeModes[blendMode], + direct = normalBlend && opacity === 1 + || param.clip + || (nativeBlend || normalBlend && opacity < 1) + && this._canComposite(), + mainCtx, itemOffset, prevOffset; + if (!direct) { + var bounds = this.getStrokeBounds(parentMatrix); + if (!bounds.width || !bounds.height) + return; + prevOffset = param.offset; + itemOffset = param.offset = bounds.getTopLeft().floor(); + mainCtx = ctx; + ctx = CanvasProvider.getContext( + bounds.getSize().ceil().add(new Size(1, 1)), + param.pixelRatio); + } + ctx.save(); + if (direct) { + ctx.globalAlpha = opacity; + if (nativeBlend) + ctx.globalCompositeOperation = blendMode; + } else { + ctx.translate(-itemOffset.x, -itemOffset.y); + } + (direct ? matrix : globalMatrix).applyToContext(ctx); + if (!direct && param.clipItem) + param.clipItem.draw(ctx, param.extend({ clip: true })); + this._draw(ctx, param); + ctx.restore(); + if (trackTransforms) + transforms.pop(); + if (param.clip && !param.dontFinish) + ctx.clip(); + if (!direct) { + BlendMode.process(blendMode, ctx, mainCtx, opacity, + itemOffset.subtract(prevOffset).multiply(param.pixelRatio)); + CanvasProvider.release(ctx); + param.offset = prevOffset; + } + }, + + _canComposite: function() { + return false; + } +}, Base.each(['down', 'drag', 'up', 'move'], function(name) { + this['removeOn' + Base.capitalize(name)] = function() { + var hash = {}; + hash[name] = true; + return this.removeOn(hash); + }; +}, { + + removeOn: function(obj) { + for (var name in obj) { + if (obj[name]) { + var key = 'mouse' + name, + project = this._project, + sets = project._removeSets = project._removeSets || {}; + sets[key] = sets[key] || {}; + sets[key][this._id] = this; + } + } + return this; + } +})); + +var Group = Item.extend({ + _class: 'Group', + _selectChildren: true, + _serializeFields: { + children: [] + }, + + initialize: function Group(arg) { + this._children = []; + this._namedChildren = {}; + if (!this._initialize(arg)) + this.addChildren(Array.isArray(arg) ? arg : arguments); + }, + + _changed: function _changed(flags) { + _changed.base.call(this, flags); + if (flags & (2 | 1024)) { + this._clipItem = undefined; + } + }, + + _getClipItem: function() { + var clipItem = this._clipItem; + if (clipItem === undefined) { + clipItem = null; + for (var i = 0, l = this._children.length; i < l; i++) { + var child = this._children[i]; + if (child._clipMask) { + clipItem = child; + break; + } + } + this._clipItem = clipItem; + } + return clipItem; + }, + + isClipped: function() { + return !!this._getClipItem(); + }, + + setClipped: function(clipped) { + var child = this.getFirstChild(); + if (child) + child.setClipMask(clipped); + }, + + _draw: function(ctx, param) { + var clip = param.clip, + clipItem = !clip && this._getClipItem(), + draw = true; + param = param.extend({ clipItem: clipItem, clip: false }); + if (clip) { + if (this._currentPath) { + ctx.currentPath = this._currentPath; + draw = false; + } else { + ctx.beginPath(); + param.dontStart = param.dontFinish = true; + } + } else if (clipItem) { + clipItem.draw(ctx, param.extend({ clip: true })); + } + if (draw) { + for (var i = 0, l = this._children.length; i < l; i++) { + var item = this._children[i]; + if (item !== clipItem) + item.draw(ctx, param); + } + } + if (clip) { + this._currentPath = ctx.currentPath; + } + } +}); + +var Layer = Group.extend({ + _class: 'Layer', + + initialize: function Layer(arg) { + var props = Base.isPlainObject(arg) + ? new Base(arg) + : { children: Array.isArray(arg) ? arg : arguments }, + insert = props.insert; + props.insert = false; + Group.call(this, props); + if (insert || insert === undefined) { + this._project.addChild(this); + this.activate(); + } + }, + + _remove: function _remove(notify) { + if (this._parent) + return _remove.base.call(this, notify); + if (this._index != null) { + if (this._project.activeLayer === this) + this._project.activeLayer = this.getNextSibling() + || this.getPreviousSibling(); + Base.splice(this._project.layers, null, this._index, 1); + this._installEvents(false); + this._project._needsUpdate = true; + return true; + } + return false; + }, + + getNextSibling: function getNextSibling() { + return this._parent ? getNextSibling.base.call(this) + : this._project.layers[this._index + 1] || null; + }, + + getPreviousSibling: function getPreviousSibling() { + return this._parent ? getPreviousSibling.base.call(this) + : this._project.layers[this._index - 1] || null; + }, + + isInserted: function isInserted() { + return this._parent ? isInserted.base.call(this) : this._index != null; + }, + + activate: function() { + this._project.activeLayer = this; + }, + + _insert: function _insert(above, item, _preserve) { + if (item instanceof Layer && !item._parent) { + this._remove(true, true); + Base.splice(item._project.layers, [this], + item._index + (above ? 1 : 0), 0); + this._setProject(item._project, true); + return this; + } + return _insert.base.call(this, above, item, _preserve); + } +}); + +var Shape = Item.extend({ + _class: 'Shape', + _applyMatrix: false, + _canApplyMatrix: false, + _boundsSelected: true, + _serializeFields: { + type: null, + size: null, + radius: null + }, + + initialize: function Shape(props) { + this._initialize(props); + }, + + _equals: function(item) { + return this._type === item._type + && this._size.equals(item._size) + && Base.equals(this._radius, item._radius); + }, + + clone: function(insert) { + var copy = new Shape(Item.NO_INSERT); + copy.setType(this._type); + copy.setSize(this._size); + copy.setRadius(this._radius); + return this._clone(copy, insert); + }, + + getType: function() { + return this._type; + }, + + setType: function(type) { + this._type = type; + }, + + getShape: '#getType', + setShape: '#setType', + + getSize: function() { + var size = this._size; + return new LinkedSize(size.width, size.height, this, 'setSize'); + }, + + setSize: function() { + var size = Size.read(arguments); + if (!this._size) { + this._size = size.clone(); + } else if (!this._size.equals(size)) { + var type = this._type, + width = size.width, + height = size.height; + if (type === 'rectangle') { + var radius = Size.min(this._radius, size.divide(2)); + this._radius.set(radius.width, radius.height); + } else if (type === 'circle') { + width = height = (width + height) / 2; + this._radius = width / 2; + } else if (type === 'ellipse') { + this._radius.set(width / 2, height / 2); + } + this._size.set(width, height); + this._changed(9); + } + }, + + getRadius: function() { + var rad = this._radius; + return this._type === 'circle' + ? rad + : new LinkedSize(rad.width, rad.height, this, 'setRadius'); + }, + + setRadius: function(radius) { + var type = this._type; + if (type === 'circle') { + if (radius === this._radius) + return; + var size = radius * 2; + this._radius = radius; + this._size.set(size, size); + } else { + radius = Size.read(arguments); + if (!this._radius) { + this._radius = radius.clone(); + } else { + if (this._radius.equals(radius)) + return; + this._radius.set(radius.width, radius.height); + if (type === 'rectangle') { + var size = Size.max(this._size, radius.multiply(2)); + this._size.set(size.width, size.height); + } else if (type === 'ellipse') { + this._size.set(radius.width * 2, radius.height * 2); + } + } + } + this._changed(9); + }, + + isEmpty: function() { + return false; + }, + + toPath: function(insert) { + var path = new Path[Base.capitalize(this._type)]({ + center: new Point(), + size: this._size, + radius: this._radius, + insert: false + }); + path.setStyle(this._style); + path.transform(this._matrix); + if (insert || insert === undefined) + path.insertAbove(this); + return path; + }, + + _draw: function(ctx, param) { + var style = this._style, + hasFill = style.hasFill(), + hasStroke = style.hasStroke(), + dontPaint = param.dontFinish || param.clip; + if (hasFill || hasStroke || dontPaint) { + var radius = this._radius, + type = this._type; + if (!param.dontStart) + ctx.beginPath(); + if (type === 'circle') { + ctx.arc(0, 0, radius, 0, Math.PI * 2, true); + } else { + var rx = radius.width, + ry = radius.height, + kappa = 0.5522847498307936; + if (type === 'ellipse') { + var cx = rx * kappa, + cy = ry * kappa; + ctx.moveTo(-rx, 0); + ctx.bezierCurveTo(-rx, -cy, -cx, -ry, 0, -ry); + ctx.bezierCurveTo(cx, -ry, rx, -cy, rx, 0); + ctx.bezierCurveTo(rx, cy, cx, ry, 0, ry); + ctx.bezierCurveTo(-cx, ry, -rx, cy, -rx, 0); + } else { + var size = this._size, + width = size.width, + height = size.height; + if (rx === 0 && ry === 0) { + ctx.rect(-width / 2, -height / 2, width, height); + } else { + kappa = 1 - kappa; + var x = width / 2, + y = height / 2, + cx = rx * kappa, + cy = ry * kappa; + ctx.moveTo(-x, -y + ry); + ctx.bezierCurveTo(-x, -y + cy, -x + cx, -y, -x + rx, -y); + ctx.lineTo(x - rx, -y); + ctx.bezierCurveTo(x - cx, -y, x, -y + cy, x, -y + ry); + ctx.lineTo(x, y - ry); + ctx.bezierCurveTo(x, y - cy, x - cx, y, x - rx, y); + ctx.lineTo(-x + rx, y); + ctx.bezierCurveTo(-x + cx, y, -x, y - cy, -x, y - ry); + } + } + } + ctx.closePath(); + } + if (!dontPaint && (hasFill || hasStroke)) { + this._setStyles(ctx); + if (hasFill) { + ctx.fill(style.getWindingRule()); + ctx.shadowColor = 'rgba(0,0,0,0)'; + } + if (hasStroke) + ctx.stroke(); + } + }, + + _canComposite: function() { + return !(this.hasFill() && this.hasStroke()); + }, + + _getBounds: function(getter, matrix) { + var rect = new Rectangle(this._size).setCenter(0, 0); + if (getter !== 'getBounds' && this.hasStroke()) + rect = rect.expand(this.getStrokeWidth()); + return matrix ? matrix._transformBounds(rect) : rect; + } +}, +new function() { + + function getCornerCenter(that, point, expand) { + var radius = that._radius; + if (!radius.isZero()) { + var halfSize = that._size.divide(2); + for (var i = 0; i < 4; i++) { + var dir = new Point(i & 1 ? 1 : -1, i > 1 ? 1 : -1), + corner = dir.multiply(halfSize), + center = corner.subtract(dir.multiply(radius)), + rect = new Rectangle(corner, center); + if ((expand ? rect.expand(expand) : rect).contains(point)) + return center; + } + } + } + + function getEllipseRadius(point, radius) { + var angle = point.getAngleInRadians(), + width = radius.width * 2, + height = radius.height * 2, + x = width * Math.sin(angle), + y = height * Math.cos(angle); + return width * height / (2 * Math.sqrt(x * x + y * y)); + } + + return { + _contains: function _contains(point) { + if (this._type === 'rectangle') { + var center = getCornerCenter(this, point); + return center + ? point.subtract(center).divide(this._radius) + .getLength() <= 1 + : _contains.base.call(this, point); + } else { + return point.divide(this.size).getLength() <= 0.5; + } + }, + + _hitTest: function _hitTest(point, options) { + var hit = false; + if (this.hasStroke()) { + var type = this._type, + radius = this._radius, + strokeWidth = this.getStrokeWidth() + 2 * options.tolerance; + if (type === 'rectangle') { + var center = getCornerCenter(this, point, strokeWidth); + if (center) { + var pt = point.subtract(center); + hit = 2 * Math.abs(pt.getLength() + - getEllipseRadius(pt, radius)) <= strokeWidth; + } else { + var rect = new Rectangle(this._size).setCenter(0, 0), + outer = rect.expand(strokeWidth), + inner = rect.expand(-strokeWidth); + hit = outer._containsPoint(point) + && !inner._containsPoint(point); + } + } else { + if (type === 'ellipse') + radius = getEllipseRadius(point, radius); + hit = 2 * Math.abs(point.getLength() - radius) + <= strokeWidth; + } + } + return hit + ? new HitResult('stroke', this) + : _hitTest.base.apply(this, arguments); + } + }; +}, { + +statics: new function() { + function createShape(type, point, size, radius, args) { + var item = new Shape(Base.getNamed(args)); + item._type = type; + item._size = size; + item._radius = radius; + return item.translate(point); + } + + return { + Circle: function() { + var center = Point.readNamed(arguments, 'center'), + radius = Base.readNamed(arguments, 'radius'); + return createShape('circle', center, new Size(radius * 2), radius, + arguments); + }, + + Rectangle: function() { + var rect = Rectangle.readNamed(arguments, 'rectangle'), + radius = Size.min(Size.readNamed(arguments, 'radius'), + rect.getSize(true).divide(2)); + return createShape('rectangle', rect.getCenter(true), + rect.getSize(true), radius, arguments); + }, + + Ellipse: function() { + var ellipse = Shape._readEllipse(arguments), + radius = ellipse.radius; + return createShape('ellipse', ellipse.center, radius.multiply(2), + radius, arguments); + }, + + _readEllipse: function(args) { + var center, + radius; + if (Base.hasNamed(args, 'radius')) { + center = Point.readNamed(args, 'center'); + radius = Size.readNamed(args, 'radius'); + } else { + var rect = Rectangle.readNamed(args, 'rectangle'); + center = rect.getCenter(true); + radius = rect.getSize(true).divide(2); + } + return { center: center, radius: radius }; + } + }; +}}); + +var Raster = Item.extend({ + _class: 'Raster', + _applyMatrix: false, + _canApplyMatrix: false, + _boundsGetter: 'getBounds', + _boundsSelected: true, + _serializeFields: { + source: null + }, + + initialize: function Raster(object, position) { + if (!this._initialize(object, + position !== undefined && Point.read(arguments, 1))) { + if (typeof object === 'string') { + this.setSource(object); + } else { + this.setImage(object); + } + } + if (!this._size) + this._size = new Size(); + }, + + _equals: function(item) { + return this.getSource() === item.getSource(); + }, + + clone: function(insert) { + var copy = new Raster(Item.NO_INSERT), + image = this._image, + canvas = this._canvas; + if (image) { + copy.setImage(image); + } else if (canvas) { + var copyCanvas = CanvasProvider.getCanvas(this._size); + copyCanvas.getContext('2d').drawImage(canvas, 0, 0); + copy.setCanvas(copyCanvas); + } + return this._clone(copy, insert); + }, + + getSize: function() { + var size = this._size; + return new LinkedSize(size.width, size.height, this, 'setSize'); + }, + + setSize: function() { + var size = Size.read(arguments); + if (!this._size.equals(size)) { + var element = this.getElement(); + this.setCanvas(CanvasProvider.getCanvas(size)); + if (element) + this.getContext(true).drawImage(element, 0, 0, + size.width, size.height); + } + }, + + getWidth: function() { + return this._size.width; + }, + + getHeight: function() { + return this._size.height; + }, + + isEmpty: function() { + return this._size.width == 0 && this._size.height == 0; + }, + + getPpi: function() { + var matrix = this._matrix, + orig = new Point(0, 0).transform(matrix), + u = new Point(1, 0).transform(matrix).subtract(orig), + v = new Point(0, 1).transform(matrix).subtract(orig); + return new Size( + 72 / u.getLength(), + 72 / v.getLength() + ); + }, + + getImage: function() { + return this._image; + }, + + setImage: function(image) { + if (this._canvas) + CanvasProvider.release(this._canvas); + if (image.getContext) { + this._image = null; + this._canvas = image; + } else { + this._image = image; + this._canvas = null; + } + this._size = new Size( + image.naturalWidth || image.width, + image.naturalHeight || image.height); + this._context = null; + this._changed(9 | 513); + }, + + getCanvas: function() { + if (!this._canvas) { + var ctx = CanvasProvider.getContext(this._size); + try { + if (this._image) + ctx.drawImage(this._image, 0, 0); + this._canvas = ctx.canvas; + } catch (e) { + CanvasProvider.release(ctx); + } + } + return this._canvas; + }, + + setCanvas: '#setImage', + + getContext: function(modify) { + if (!this._context) + this._context = this.getCanvas().getContext('2d'); + if (modify) { + this._image = null; + this._changed(513); + } + return this._context; + }, + + setContext: function(context) { + this._context = context; + }, + + getSource: function() { + return this._image && this._image.src || this.toDataURL(); + }, + + setSource: function(src) { + var that = this, + image; + + function loaded() { + var view = that.getView(); + if (view) { + paper = view._scope; + that.setImage(image); + that.fire('load'); + view.update(); + } + } + + image = document.getElementById(src) || new Image(); + + if (image.naturalWidth && image.naturalHeight) { + setTimeout(loaded, 0); + } else { + DomEvent.add(image, { + load: loaded + }); + if (!image.src) + image.src = src; + } + this.setImage(image); + }, + + getElement: function() { + return this._canvas || this._image; + }, + + getSubCanvas: function(rect) { + var rect = Rectangle.read(arguments), + ctx = CanvasProvider.getContext(rect.getSize()); + ctx.drawImage(this.getCanvas(), rect.x, rect.y, + rect.width, rect.height, 0, 0, rect.width, rect.height); + return ctx.canvas; + }, + + getSubRaster: function(rect) { + var rect = Rectangle.read(arguments), + raster = new Raster(Item.NO_INSERT); + raster.setCanvas(this.getSubCanvas(rect)); + raster.translate(rect.getCenter().subtract(this.getSize().divide(2))); + raster._matrix.preConcatenate(this._matrix); + raster.insertAbove(this); + return raster; + }, + + toDataURL: function() { + var src = this._image && this._image.src; + if (/^data:/.test(src)) + return src; + var canvas = this.getCanvas(); + return canvas ? canvas.toDataURL() : null; + }, + + drawImage: function(image ) { + var point = Point.read(arguments, 1); + this.getContext(true).drawImage(image, point.x, point.y); + }, + + getAverageColor: function(object) { + var bounds, path; + if (!object) { + bounds = this.getBounds(); + } else if (object instanceof PathItem) { + path = object; + bounds = object.getBounds(); + } else if (object.width) { + bounds = new Rectangle(object); + } else if (object.x) { + bounds = new Rectangle(object.x - 0.5, object.y - 0.5, 1, 1); + } + var sampleSize = 32, + width = Math.min(bounds.width, sampleSize), + height = Math.min(bounds.height, sampleSize); + var ctx = Raster._sampleContext; + if (!ctx) { + ctx = Raster._sampleContext = CanvasProvider.getContext( + new Size(sampleSize)); + } else { + ctx.clearRect(0, 0, sampleSize + 1, sampleSize + 1); + } + ctx.save(); + var matrix = new Matrix() + .scale(width / bounds.width, height / bounds.height) + .translate(-bounds.x, -bounds.y); + matrix.applyToContext(ctx); + if (path) + path.draw(ctx, new Base({ clip: true, transforms: [matrix] })); + this._matrix.applyToContext(ctx); + ctx.drawImage(this.getElement(), + -this._size.width / 2, -this._size.height / 2); + ctx.restore(); + var pixels = ctx.getImageData(0.5, 0.5, Math.ceil(width), + Math.ceil(height)).data, + channels = [0, 0, 0], + total = 0; + for (var i = 0, l = pixels.length; i < l; i += 4) { + var alpha = pixels[i + 3]; + total += alpha; + alpha /= 255; + channels[0] += pixels[i] * alpha; + channels[1] += pixels[i + 1] * alpha; + channels[2] += pixels[i + 2] * alpha; + } + for (var i = 0; i < 3; i++) + channels[i] /= total; + return total ? Color.read(channels) : null; + }, + + getPixel: function(point) { + var point = Point.read(arguments); + var data = this.getContext().getImageData(point.x, point.y, 1, 1).data; + return new Color('rgb', [data[0] / 255, data[1] / 255, data[2] / 255], + data[3] / 255); + }, + + setPixel: function() { + var point = Point.read(arguments), + color = Color.read(arguments), + components = color._convert('rgb'), + alpha = color._alpha, + ctx = this.getContext(true), + imageData = ctx.createImageData(1, 1), + data = imageData.data; + data[0] = components[0] * 255; + data[1] = components[1] * 255; + data[2] = components[2] * 255; + data[3] = alpha != null ? alpha * 255 : 255; + ctx.putImageData(imageData, point.x, point.y); + }, + + createImageData: function() { + var size = Size.read(arguments); + return this.getContext().createImageData(size.width, size.height); + }, + + getImageData: function(rect) { + var rect = Rectangle.read(arguments); + if (rect.isEmpty()) + rect = new Rectangle(this._size); + return this.getContext().getImageData(rect.x, rect.y, + rect.width, rect.height); + }, + + setImageData: function(data ) { + var point = Point.read(arguments, 1); + this.getContext(true).putImageData(data, point.x, point.y); + }, + + _getBounds: function(getter, matrix) { + var rect = new Rectangle(this._size).setCenter(0, 0); + return matrix ? matrix._transformBounds(rect) : rect; + }, + + _hitTest: function(point) { + if (this._contains(point)) { + var that = this; + return new HitResult('pixel', that, { + offset: point.add(that._size.divide(2)).round(), + color: { + get: function() { + return that.getPixel(this.offset); + } + } + }); + } + }, + + _draw: function(ctx) { + var element = this.getElement(); + if (element) { + ctx.globalAlpha = this._opacity; + ctx.drawImage(element, + -this._size.width / 2, -this._size.height / 2); + } + }, + + _canComposite: function() { + return true; + } +}); + +var PlacedSymbol = Item.extend({ + _class: 'PlacedSymbol', + _applyMatrix: false, + _canApplyMatrix: false, + _boundsGetter: { getBounds: 'getStrokeBounds' }, + _boundsSelected: true, + _serializeFields: { + symbol: null + }, + + initialize: function PlacedSymbol(arg0, arg1) { + if (!this._initialize(arg0, + arg1 !== undefined && Point.read(arguments, 1))) + this.setSymbol(arg0 instanceof Symbol ? arg0 : new Symbol(arg0)); + }, + + _equals: function(item) { + return this._symbol === item._symbol; + }, + + getSymbol: function() { + return this._symbol; + }, + + setSymbol: function(symbol) { + this._symbol = symbol; + this._changed(9); + }, + + clone: function(insert) { + var copy = new PlacedSymbol(Item.NO_INSERT); + copy.setSymbol(this._symbol); + return this._clone(copy, insert); + }, + + isEmpty: function() { + return this._symbol._definition.isEmpty(); + }, + + _getBounds: function(getter, matrix, cacheItem) { + return this.symbol._definition._getCachedBounds(getter, matrix, + cacheItem); + }, + + _hitTest: function(point, options) { + var res = this._symbol._definition.hitTest(point, options); + if (res) + res.item = this; + return res; + }, + + _draw: function(ctx, param) { + this.symbol._definition.draw(ctx, param); + } + +}); + +var HitResult = Base.extend({ + _class: 'HitResult', + + initialize: function HitResult(type, item, values) { + this.type = type; + this.item = item; + if (values) { + values.enumerable = true; + this.inject(values); + } + }, + + statics: { + getOptions: function(options) { + return options && options._merged ? options : new Base({ + type: null, + tolerance: paper.settings.hitTolerance, + fill: !options, + stroke: !options, + segments: !options, + handles: false, + ends: false, + center: false, + bounds: false, + guides: false, + selected: false, + _merged: true + }, options); + } + } +}); + +var Segment = Base.extend({ + _class: 'Segment', + beans: true, + + initialize: function Segment(arg0, arg1, arg2, arg3, arg4, arg5) { + var count = arguments.length, + point, handleIn, handleOut; + if (count === 0) { + } else if (count === 1) { + if (arg0.point) { + point = arg0.point; + handleIn = arg0.handleIn; + handleOut = arg0.handleOut; + } else { + point = arg0; + } + } else if (count === 2 && typeof arg0 === 'number') { + point = arguments; + } else if (count <= 3) { + point = arg0; + handleIn = arg1; + handleOut = arg2; + } else { + point = arg0 !== undefined ? [ arg0, arg1 ] : null; + handleIn = arg2 !== undefined ? [ arg2, arg3 ] : null; + handleOut = arg4 !== undefined ? [ arg4, arg5 ] : null; + } + new SegmentPoint(point, this, '_point'); + new SegmentPoint(handleIn, this, '_handleIn'); + new SegmentPoint(handleOut, this, '_handleOut'); + }, + + _serialize: function(options) { + return Base.serialize(this.isLinear() ? this._point + : [this._point, this._handleIn, this._handleOut], + options, true); + }, + + _changed: function(point) { + var path = this._path; + if (!path) + return; + var curves = path._curves, + index = this._index, + curveIn, curveOut; + if (curves) { + if ((!point || point === this._point || point === this._handleIn) + && (curveIn = curves[index - 1] + || path._closed && curves[curves.length - 1])) + curveIn._changed(); + if ((!point || point === this._point || point === this._handleOut) + && (curveOut = curves[index])) + curveOut._changed(); + } + path._changed(25); + }, + + getPoint: function() { + return this._point; + }, + + setPoint: function() { + var point = Point.read(arguments); + this._point.set(point.x, point.y); + }, + + getHandleIn: function() { + return this._handleIn; + }, + + setHandleIn: function() { + var point = Point.read(arguments); + this._handleIn.set(point.x, point.y); + }, + + getHandleOut: function() { + return this._handleOut; + }, + + setHandleOut: function() { + var point = Point.read(arguments); + this._handleOut.set(point.x, point.y); + }, + + isLinear: function() { + return this._handleIn.isZero() && this._handleOut.isZero(); + }, + + setLinear: function() { + this._handleIn.set(0, 0); + this._handleOut.set(0, 0); + }, + + isColinear: function(segment) { + var next1 = this.getNext(), + next2 = segment.getNext(); + return this._handleOut.isZero() && next1._handleIn.isZero() + && segment._handleOut.isZero() && next2._handleIn.isZero() + && next1._point.subtract(this._point).isColinear( + next2._point.subtract(segment._point)); + }, + + isOrthogonal: function() { + var prev = this.getPrevious(), + next = this.getNext(); + return prev._handleOut.isZero() && this._handleIn.isZero() + && this._handleOut.isZero() && next._handleIn.isZero() + && this._point.subtract(prev._point).isOrthogonal( + next._point.subtract(this._point)); + }, + + isArc: function() { + var next = this.getNext(), + handle1 = this._handleOut, + handle2 = next._handleIn, + kappa = 0.5522847498307936; + if (handle1.isOrthogonal(handle2)) { + var from = this._point, + to = next._point, + corner = new Line(from, handle1, true).intersect( + new Line(to, handle2, true), true); + return corner && Numerical.isZero(handle1.getLength() / + corner.subtract(from).getLength() - kappa) + && Numerical.isZero(handle2.getLength() / + corner.subtract(to).getLength() - kappa); + } + return false; + }, + + _selectionState: 0, + + isSelected: function(_point) { + var state = this._selectionState; + return !_point ? !!(state & 7) + : _point === this._point ? !!(state & 4) + : _point === this._handleIn ? !!(state & 1) + : _point === this._handleOut ? !!(state & 2) + : false; + }, + + setSelected: function(selected, _point) { + var path = this._path, + selected = !!selected, + state = this._selectionState, + oldState = state, + flag = !_point ? 7 + : _point === this._point ? 4 + : _point === this._handleIn ? 1 + : _point === this._handleOut ? 2 + : 0; + if (selected) { + state |= flag; + } else { + state &= ~flag; + } + this._selectionState = state; + if (path && state !== oldState) { + path._updateSelection(this, oldState, state); + path._changed(129); + } + }, + + getIndex: function() { + return this._index !== undefined ? this._index : null; + }, + + getPath: function() { + return this._path || null; + }, + + getCurve: function() { + var path = this._path, + index = this._index; + if (path) { + if (index > 0 && !path._closed + && index === path._segments.length - 1) + index--; + return path.getCurves()[index] || null; + } + return null; + }, + + getLocation: function() { + var curve = this.getCurve(); + return curve + ? new CurveLocation(curve, this === curve._segment1 ? 0 : 1) + : null; + }, + + getNext: function() { + var segments = this._path && this._path._segments; + return segments && (segments[this._index + 1] + || this._path._closed && segments[0]) || null; + }, + + getPrevious: function() { + var segments = this._path && this._path._segments; + return segments && (segments[this._index - 1] + || this._path._closed && segments[segments.length - 1]) || null; + }, + + reverse: function() { + return new Segment(this._point, this._handleOut, this._handleIn); + }, + + remove: function() { + return this._path ? !!this._path.removeSegment(this._index) : false; + }, + + clone: function() { + return new Segment(this._point, this._handleIn, this._handleOut); + }, + + equals: function(segment) { + return segment === this || segment && this._class === segment._class + && this._point.equals(segment._point) + && this._handleIn.equals(segment._handleIn) + && this._handleOut.equals(segment._handleOut) + || false; + }, + + toString: function() { + var parts = [ 'point: ' + this._point ]; + if (!this._handleIn.isZero()) + parts.push('handleIn: ' + this._handleIn); + if (!this._handleOut.isZero()) + parts.push('handleOut: ' + this._handleOut); + return '{ ' + parts.join(', ') + ' }'; + }, + + transform: function(matrix) { + this._transformCoordinates(matrix, new Array(6), true); + this._changed(); + }, + + _transformCoordinates: function(matrix, coords, change) { + var point = this._point, + handleIn = !change || !this._handleIn.isZero() + ? this._handleIn : null, + handleOut = !change || !this._handleOut.isZero() + ? this._handleOut : null, + x = point._x, + y = point._y, + i = 2; + coords[0] = x; + coords[1] = y; + if (handleIn) { + coords[i++] = handleIn._x + x; + coords[i++] = handleIn._y + y; + } + if (handleOut) { + coords[i++] = handleOut._x + x; + coords[i++] = handleOut._y + y; + } + if (matrix) { + matrix._transformCoordinates(coords, 0, coords, 0, i / 2); + x = coords[0]; + y = coords[1]; + if (change) { + point._x = x; + point._y = y; + i = 2; + if (handleIn) { + handleIn._x = coords[i++] - x; + handleIn._y = coords[i++] - y; + } + if (handleOut) { + handleOut._x = coords[i++] - x; + handleOut._y = coords[i++] - y; + } + } else { + if (!handleIn) { + coords[i++] = x; + coords[i++] = y; + } + if (!handleOut) { + coords[i++] = x; + coords[i++] = y; + } + } + } + return coords; + } +}); + +var SegmentPoint = Point.extend({ + initialize: function SegmentPoint(point, owner, key) { + var x, y, selected; + if (!point) { + x = y = 0; + } else if ((x = point[0]) !== undefined) { + y = point[1]; + } else { + var pt = point; + if ((x = pt.x) === undefined) { + pt = Point.read(arguments); + x = pt.x; + } + y = pt.y; + selected = pt.selected; + } + this._x = x; + this._y = y; + this._owner = owner; + owner[key] = this; + if (selected) + this.setSelected(true); + }, + + set: function(x, y) { + this._x = x; + this._y = y; + this._owner._changed(this); + return this; + }, + + _serialize: function(options) { + var f = options.formatter, + x = f.number(this._x), + y = f.number(this._y); + return this.isSelected() + ? { x: x, y: y, selected: true } + : [x, y]; + }, + + getX: function() { + return this._x; + }, + + setX: function(x) { + this._x = x; + this._owner._changed(this); + }, + + getY: function() { + return this._y; + }, + + setY: function(y) { + this._y = y; + this._owner._changed(this); + }, + + isZero: function() { + return Numerical.isZero(this._x) && Numerical.isZero(this._y); + }, + + setSelected: function(selected) { + this._owner.setSelected(selected, this); + }, + + isSelected: function() { + return this._owner.isSelected(this); + } +}); + +var Curve = Base.extend({ + _class: 'Curve', + initialize: function Curve(arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7) { + var count = arguments.length; + if (count === 3) { + this._path = arg0; + this._segment1 = arg1; + this._segment2 = arg2; + } else if (count === 0) { + this._segment1 = new Segment(); + this._segment2 = new Segment(); + } else if (count === 1) { + this._segment1 = new Segment(arg0.segment1); + this._segment2 = new Segment(arg0.segment2); + } else if (count === 2) { + this._segment1 = new Segment(arg0); + this._segment2 = new Segment(arg1); + } else { + var point1, handle1, handle2, point2; + if (count === 4) { + point1 = arg0; + handle1 = arg1; + handle2 = arg2; + point2 = arg3; + } else if (count === 8) { + point1 = [arg0, arg1]; + point2 = [arg6, arg7]; + handle1 = [arg2 - arg0, arg3 - arg1]; + handle2 = [arg4 - arg6, arg5 - arg7]; + } + this._segment1 = new Segment(point1, null, handle1); + this._segment2 = new Segment(point2, handle2, null); + } + }, + + _changed: function() { + this._length = this._bounds = undefined; + }, + + getPoint1: function() { + return this._segment1._point; + }, + + setPoint1: function() { + var point = Point.read(arguments); + this._segment1._point.set(point.x, point.y); + }, + + getPoint2: function() { + return this._segment2._point; + }, + + setPoint2: function() { + var point = Point.read(arguments); + this._segment2._point.set(point.x, point.y); + }, + + getHandle1: function() { + return this._segment1._handleOut; + }, + + setHandle1: function() { + var point = Point.read(arguments); + this._segment1._handleOut.set(point.x, point.y); + }, + + getHandle2: function() { + return this._segment2._handleIn; + }, + + setHandle2: function() { + var point = Point.read(arguments); + this._segment2._handleIn.set(point.x, point.y); + }, + + getSegment1: function() { + return this._segment1; + }, + + getSegment2: function() { + return this._segment2; + }, + + getPath: function() { + return this._path; + }, + + getIndex: function() { + return this._segment1._index; + }, + + getNext: function() { + var curves = this._path && this._path._curves; + return curves && (curves[this._segment1._index + 1] + || this._path._closed && curves[0]) || null; + }, + + getPrevious: function() { + var curves = this._path && this._path._curves; + return curves && (curves[this._segment1._index - 1] + || this._path._closed && curves[curves.length - 1]) || null; + }, + + isSelected: function() { + return this.getPoint1().isSelected() + && this.getHandle2().isSelected() + && this.getHandle2().isSelected() + && this.getPoint2().isSelected(); + }, + + setSelected: function(selected) { + this.getPoint1().setSelected(selected); + this.getHandle1().setSelected(selected); + this.getHandle2().setSelected(selected); + this.getPoint2().setSelected(selected); + }, + + getValues: function(matrix) { + return Curve.getValues(this._segment1, this._segment2, matrix); + }, + + getPoints: function() { + var coords = this.getValues(), + points = []; + for (var i = 0; i < 8; i += 2) + points.push(new Point(coords[i], coords[i + 1])); + return points; + }, + + getLength: function() { + if (this._length == null) { + this._length = this.isLinear() + ? this._segment2._point.getDistance(this._segment1._point) + : Curve.getLength(this.getValues(), 0, 1); + } + return this._length; + }, + + getArea: function() { + return Curve.getArea(this.getValues()); + }, + + getPart: function(from, to) { + return new Curve(Curve.getPart(this.getValues(), from, to)); + }, + + getPartLength: function(from, to) { + return Curve.getLength(this.getValues(), from, to); + }, + + isLinear: function() { + return this._segment1._handleOut.isZero() + && this._segment2._handleIn.isZero(); + }, + + isHorizontal: function() { + return this.isLinear() && Numerical.isZero( + this._segment1._point._y - this._segment2._point._y); + }, + + getIntersections: function(curve) { + return Curve.getIntersections(this.getValues(), curve.getValues(), + this, curve, []); + }, + + _getParameter: function(offset, isParameter) { + return isParameter + ? offset + : offset && offset.curve === this + ? offset.parameter + : offset === undefined && isParameter === undefined + ? 0.5 + : this.getParameterAt(offset, 0); + }, + + divide: function(offset, isParameter, ignoreLinear) { + var parameter = this._getParameter(offset, isParameter), + tolerance = 0.00001, + res = null; + if (parameter > tolerance && parameter < 1 - tolerance) { + var parts = Curve.subdivide(this.getValues(), parameter), + isLinear = ignoreLinear ? false : this.isLinear(), + left = parts[0], + right = parts[1]; + + if (!isLinear) { + this._segment1._handleOut.set(left[2] - left[0], + left[3] - left[1]); + this._segment2._handleIn.set(right[4] - right[6], + right[5] - right[7]); + } + + var x = left[6], y = left[7], + segment = new Segment(new Point(x, y), + !isLinear && new Point(left[4] - x, left[5] - y), + !isLinear && new Point(right[2] - x, right[3] - y)); + + if (this._path) { + if (this._segment1._index > 0 && this._segment2._index === 0) { + this._path.add(segment); + } else { + this._path.insert(this._segment2._index, segment); + } + res = this; + } else { + var end = this._segment2; + this._segment2 = segment; + res = new Curve(segment, end); + } + } + return res; + }, + + split: function(offset, isParameter) { + return this._path + ? this._path.split(this._segment1._index, + this._getParameter(offset, isParameter)) + : null; + }, + + reverse: function() { + return new Curve(this._segment2.reverse(), this._segment1.reverse()); + }, + + remove: function() { + var removed = false; + if (this._path) { + var segment2 = this._segment2, + handleOut = segment2._handleOut; + removed = segment2.remove(); + if (removed) + this._segment1._handleOut.set(handleOut.x, handleOut.y); + } + return removed; + }, + + clone: function() { + return new Curve(this._segment1, this._segment2); + }, + + toString: function() { + var parts = [ 'point1: ' + this._segment1._point ]; + if (!this._segment1._handleOut.isZero()) + parts.push('handle1: ' + this._segment1._handleOut); + if (!this._segment2._handleIn.isZero()) + parts.push('handle2: ' + this._segment2._handleIn); + parts.push('point2: ' + this._segment2._point); + return '{ ' + parts.join(', ') + ' }'; + }, + +statics: { + getValues: function(segment1, segment2, matrix) { + var p1 = segment1._point, + h1 = segment1._handleOut, + h2 = segment2._handleIn, + p2 = segment2._point, + values = [ + p1._x, p1._y, + p1._x + h1._x, p1._y + h1._y, + p2._x + h2._x, p2._y + h2._y, + p2._x, p2._y + ]; + if (matrix) + matrix._transformCoordinates(values, 0, values, 0, 6); + return values; + }, + + evaluate: function(v, t, type) { + var p1x = v[0], p1y = v[1], + c1x = v[2], c1y = v[3], + c2x = v[4], c2y = v[5], + p2x = v[6], p2y = v[7], + tolerance = 0.00001, + x, y; + + if (type === 0 && (t < tolerance || t > 1 - tolerance)) { + var isZero = t < tolerance; + x = isZero ? p1x : p2x; + y = isZero ? p1y : p2y; + } else { + var cx = 3 * (c1x - p1x), + bx = 3 * (c2x - c1x) - cx, + ax = p2x - p1x - cx - bx, + + cy = 3 * (c1y - p1y), + by = 3 * (c2y - c1y) - cy, + ay = p2y - p1y - cy - by; + if (type === 0) { + x = ((ax * t + bx) * t + cx) * t + p1x; + y = ((ay * t + by) * t + cy) * t + p1y; + } else { + if (t < tolerance && c1x === p1x && c1y === p1y + || t > 1 - tolerance && c2x === p2x && c2y === p2y) { + x = p2x - p1x; + y = p2y - p1y; + } else if (t < tolerance) { + x = cx; + y = cy; + } else if (t > 1 - tolerance) { + x = 3 * (p2x - c2x); + y = 3 * (p2y - c2y); + } else { + x = (3 * ax * t + 2 * bx) * t + cx; + y = (3 * ay * t + 2 * by) * t + cy; + } + if (type === 3) { + var x2 = 6 * ax * t + 2 * bx, + y2 = 6 * ay * t + 2 * by; + return (x * y2 - y * x2) / Math.pow(x * x + y * y, 3 / 2); + } + } + } + return type === 2 ? new Point(y, -x) : new Point(x, y); + }, + + subdivide: function(v, t) { + var p1x = v[0], p1y = v[1], + c1x = v[2], c1y = v[3], + c2x = v[4], c2y = v[5], + p2x = v[6], p2y = v[7]; + if (t === undefined) + t = 0.5; + var u = 1 - t, + p3x = u * p1x + t * c1x, p3y = u * p1y + t * c1y, + p4x = u * c1x + t * c2x, p4y = u * c1y + t * c2y, + p5x = u * c2x + t * p2x, p5y = u * c2y + t * p2y, + p6x = u * p3x + t * p4x, p6y = u * p3y + t * p4y, + p7x = u * p4x + t * p5x, p7y = u * p4y + t * p5y, + p8x = u * p6x + t * p7x, p8y = u * p6y + t * p7y; + return [ + [p1x, p1y, p3x, p3y, p6x, p6y, p8x, p8y], + [p8x, p8y, p7x, p7y, p5x, p5y, p2x, p2y] + ]; + }, + + solveCubic: function (v, coord, val, roots, min, max) { + var p1 = v[coord], + c1 = v[coord + 2], + c2 = v[coord + 4], + p2 = v[coord + 6], + c = 3 * (c1 - p1), + b = 3 * (c2 - c1) - c, + a = p2 - p1 - c - b; + return Numerical.solveCubic(a, b, c, p1 - val, roots, min, max); + }, + + getParameterOf: function(v, x, y) { + var tolerance = 0.00001; + if (Math.abs(v[0] - x) < tolerance && Math.abs(v[1] - y) < tolerance) + return 0; + if (Math.abs(v[6] - x) < tolerance && Math.abs(v[7] - y) < tolerance) + return 1; + var txs = [], + tys = [], + sx = Curve.solveCubic(v, 0, x, txs), + sy = Curve.solveCubic(v, 1, y, tys), + tx, ty; + for (var cx = 0; sx == -1 || cx < sx;) { + if (sx == -1 || (tx = txs[cx++]) >= 0 && tx <= 1) { + for (var cy = 0; sy == -1 || cy < sy;) { + if (sy == -1 || (ty = tys[cy++]) >= 0 && ty <= 1) { + if (sx == -1) tx = ty; + else if (sy == -1) ty = tx; + if (Math.abs(tx - ty) < tolerance) + return (tx + ty) * 0.5; + } + } + if (sx == -1) + break; + } + } + return null; + }, + + getPart: function(v, from, to) { + if (from > 0) + v = Curve.subdivide(v, from)[1]; + if (to < 1) + v = Curve.subdivide(v, (to - from) / (1 - from))[0]; + return v; + }, + + isLinear: function(v) { + var isZero = Numerical.isZero; + return isZero(v[0] - v[2]) && isZero(v[1] - v[3]) + && isZero(v[4] - v[6]) && isZero(v[5] - v[7]); + }, + + isFlatEnough: function(v, tolerance) { + var p1x = v[0], p1y = v[1], + c1x = v[2], c1y = v[3], + c2x = v[4], c2y = v[5], + p2x = v[6], p2y = v[7], + ux = 3 * c1x - 2 * p1x - p2x, + uy = 3 * c1y - 2 * p1y - p2y, + vx = 3 * c2x - 2 * p2x - p1x, + vy = 3 * c2y - 2 * p2y - p1y; + return Math.max(ux * ux, vx * vx) + Math.max(uy * uy, vy * vy) + < 10 * tolerance * tolerance; + }, + + getArea: function(v) { + var p1x = v[0], p1y = v[1], + c1x = v[2], c1y = v[3], + c2x = v[4], c2y = v[5], + p2x = v[6], p2y = v[7]; + return ( 3.0 * c1y * p1x - 1.5 * c1y * c2x + - 1.5 * c1y * p2x - 3.0 * p1y * c1x + - 1.5 * p1y * c2x - 0.5 * p1y * p2x + + 1.5 * c2y * p1x + 1.5 * c2y * c1x + - 3.0 * c2y * p2x + 0.5 * p2y * p1x + + 1.5 * p2y * c1x + 3.0 * p2y * c2x) / 10; + }, + + getBounds: function(v) { + var min = v.slice(0, 2), + max = min.slice(), + roots = [0, 0]; + for (var i = 0; i < 2; i++) + Curve._addBounds(v[i], v[i + 2], v[i + 4], v[i + 6], + i, 0, min, max, roots); + return new Rectangle(min[0], min[1], max[0] - min[0], max[1] - min[1]); + }, + + _addBounds: function(v0, v1, v2, v3, coord, padding, min, max, roots) { + function add(value, padding) { + var left = value - padding, + right = value + padding; + if (left < min[coord]) + min[coord] = left; + if (right > max[coord]) + max[coord] = right; + } + var a = 3 * (v1 - v2) - v0 + v3, + b = 2 * (v0 + v2) - 4 * v1, + c = v1 - v0, + count = Numerical.solveQuadratic(a, b, c, roots), + tMin = 0.00001, + tMax = 1 - tMin; + add(v3, 0); + for (var i = 0; i < count; i++) { + var t = roots[i], + u = 1 - t; + if (tMin < t && t < tMax) + add(u * u * u * v0 + + 3 * u * u * t * v1 + + 3 * u * t * t * v2 + + t * t * t * v3, + padding); + } + } +}}, Base.each(['getBounds', 'getStrokeBounds', 'getHandleBounds', 'getRoughBounds'], + function(name) { + this[name] = function() { + if (!this._bounds) + this._bounds = {}; + var bounds = this._bounds[name]; + if (!bounds) { + bounds = this._bounds[name] = Path[name]([this._segment1, + this._segment2], false, this._path.getStyle()); + } + return bounds.clone(); + }; + }, +{ + +}), Base.each(['getPoint', 'getTangent', 'getNormal', 'getCurvature'], + function(name, index) { + this[name + 'At'] = function(offset, isParameter) { + var values = this.getValues(); + return Curve.evaluate(values, isParameter + ? offset : Curve.getParameterAt(values, offset, 0), index); + }; + this[name] = function(parameter) { + return Curve.evaluate(this.getValues(), parameter, index); + }; + }, +{ + getParameterAt: function(offset, start) { + return Curve.getParameterAt(this.getValues(), offset, + start !== undefined ? start : offset < 0 ? 1 : 0); + }, + + getParameterOf: function(point) { + var point = Point.read(arguments); + return Curve.getParameterOf(this.getValues(), point.x, point.y); + }, + + getLocationAt: function(offset, isParameter) { + if (!isParameter) + offset = this.getParameterAt(offset); + return new CurveLocation(this, offset); + }, + + getLocationOf: function(point) { + var point = Point.read(arguments), + t = this.getParameterOf(point); + return t != null ? new CurveLocation(this, t) : null; + }, + + getNearestLocation: function(point) { + var point = Point.read(arguments), + values = this.getValues(), + count = 100, + minDist = Infinity, + minT = 0; + + function refine(t) { + if (t >= 0 && t <= 1) { + var dist = point.getDistance( + Curve.evaluate(values, t, 0), true); + if (dist < minDist) { + minDist = dist; + minT = t; + return true; + } + } + } + + for (var i = 0; i <= count; i++) + refine(i / count); + + var step = 1 / (count * 2); + while (step > 0.00001) { + if (!refine(minT - step) && !refine(minT + step)) + step /= 2; + } + var pt = Curve.evaluate(values, minT, 0); + return new CurveLocation(this, minT, pt, null, null, null, + point.getDistance(pt)); + }, + + getNearestPoint: function(point) { + var point = Point.read(arguments); + return this.getNearestLocation(point).getPoint(); + } + +}), +new function() { + + function getLengthIntegrand(v) { + var p1x = v[0], p1y = v[1], + c1x = v[2], c1y = v[3], + c2x = v[4], c2y = v[5], + p2x = v[6], p2y = v[7], + + ax = 9 * (c1x - c2x) + 3 * (p2x - p1x), + bx = 6 * (p1x + c2x) - 12 * c1x, + cx = 3 * (c1x - p1x), + + ay = 9 * (c1y - c2y) + 3 * (p2y - p1y), + by = 6 * (p1y + c2y) - 12 * c1y, + cy = 3 * (c1y - p1y); + + return function(t) { + var dx = (ax * t + bx) * t + cx, + dy = (ay * t + by) * t + cy; + return Math.sqrt(dx * dx + dy * dy); + }; + } + + function getIterations(a, b) { + return Math.max(2, Math.min(16, Math.ceil(Math.abs(b - a) * 32))); + } + + return { + statics: true, + + getLength: function(v, a, b) { + if (a === undefined) + a = 0; + if (b === undefined) + b = 1; + var isZero = Numerical.isZero; + if (a === 0 && b === 1 + && isZero(v[0] - v[2]) && isZero(v[1] - v[3]) + && isZero(v[6] - v[4]) && isZero(v[7] - v[5])) { + var dx = v[6] - v[0], + dy = v[7] - v[1]; + return Math.sqrt(dx * dx + dy * dy); + } + var ds = getLengthIntegrand(v); + return Numerical.integrate(ds, a, b, getIterations(a, b)); + }, + + getParameterAt: function(v, offset, start) { + if (offset === 0) + return start; + var forward = offset > 0, + a = forward ? start : 0, + b = forward ? 1 : start, + offset = Math.abs(offset), + ds = getLengthIntegrand(v), + rangeLength = Numerical.integrate(ds, a, b, + getIterations(a, b)); + if (offset >= rangeLength) + return forward ? b : a; + var guess = offset / rangeLength, + length = 0; + function f(t) { + var count = getIterations(start, t); + length += start < t + ? Numerical.integrate(ds, start, t, count) + : -Numerical.integrate(ds, t, start, count); + start = t; + return length - offset; + } + return Numerical.findRoot(f, ds, + forward ? a + guess : b - guess, + a, b, 16, 0.00001); + } + }; +}, new function() { + function addLocation(locations, include, curve1, t1, point1, curve2, t2, + point2) { + var loc = new CurveLocation(curve1, t1, point1, curve2, t2, point2); + if (!include || include(loc)) + locations.push(loc); + } + + function addCurveIntersections(v1, v2, curve1, curve2, locations, include, + tMin, tMax, uMin, uMax, oldTDiff, reverse, recursion) { + if (recursion > 20) + return; + var q0x = v2[0], q0y = v2[1], q3x = v2[6], q3y = v2[7], + tolerance = 0.00001, + hullEpsilon = 1e-9, + getSignedDistance = Line.getSignedDistance, + d1 = getSignedDistance(q0x, q0y, q3x, q3y, v2[2], v2[3]) || 0, + d2 = getSignedDistance(q0x, q0y, q3x, q3y, v2[4], v2[5]) || 0, + factor = d1 * d2 > 0 ? 3 / 4 : 4 / 9, + dMin = factor * Math.min(0, d1, d2), + dMax = factor * Math.max(0, d1, d2), + dp0 = getSignedDistance(q0x, q0y, q3x, q3y, v1[0], v1[1]), + dp1 = getSignedDistance(q0x, q0y, q3x, q3y, v1[2], v1[3]), + dp2 = getSignedDistance(q0x, q0y, q3x, q3y, v1[4], v1[5]), + dp3 = getSignedDistance(q0x, q0y, q3x, q3y, v1[6], v1[7]), + tMinNew, tMaxNew, tDiff; + if (q0x === q3x && uMax - uMin <= hullEpsilon && recursion > 3) { + tMinNew = (tMax + tMin) / 2; + tMaxNew = tMinNew; + tDiff = 0; + } else { + var hull = getConvexHull(dp0, dp1, dp2, dp3), + top = hull[0], + bottom = hull[1], + tMinClip, tMaxClip; + tMinClip = clipConvexHull(top, bottom, dMin, dMax); + top.reverse(); + bottom.reverse(); + tMaxClip = clipConvexHull(top, bottom, dMin, dMax); + if (tMinClip == null || tMaxClip == null) + return false; + v1 = Curve.getPart(v1, tMinClip, tMaxClip); + tDiff = tMaxClip - tMinClip; + tMinNew = tMax * tMinClip + tMin * (1 - tMinClip); + tMaxNew = tMax * tMaxClip + tMin * (1 - tMaxClip); + } + if (oldTDiff > 0.8 && tDiff > 0.8) { + if (tMaxNew - tMinNew > uMax - uMin) { + var parts = Curve.subdivide(v1, 0.5), + t = tMinNew + (tMaxNew - tMinNew) / 2; + addCurveIntersections( + v2, parts[0], curve2, curve1, locations, include, + uMin, uMax, tMinNew, t, tDiff, !reverse, ++recursion); + addCurveIntersections( + v2, parts[1], curve2, curve1, locations, include, + uMin, uMax, t, tMaxNew, tDiff, !reverse, recursion); + } else { + var parts = Curve.subdivide(v2, 0.5), + t = uMin + (uMax - uMin) / 2; + addCurveIntersections( + parts[0], v1, curve2, curve1, locations, include, + uMin, t, tMinNew, tMaxNew, tDiff, !reverse, ++recursion); + addCurveIntersections( + parts[1], v1, curve2, curve1, locations, include, + t, uMax, tMinNew, tMaxNew, tDiff, !reverse, recursion); + } + } else if (Math.max(uMax - uMin, tMaxNew - tMinNew) < tolerance) { + var t1 = tMinNew + (tMaxNew - tMinNew) / 2, + t2 = uMin + (uMax - uMin) / 2; + if (reverse) { + addLocation(locations, include, + curve2, t2, Curve.evaluate(v2, t2, 0), + curve1, t1, Curve.evaluate(v1, t1, 0)); + } else { + addLocation(locations, include, + curve1, t1, Curve.evaluate(v1, t1, 0), + curve2, t2, Curve.evaluate(v2, t2, 0)); + } + } else { + addCurveIntersections(v2, v1, curve2, curve1, locations, include, + uMin, uMax, tMinNew, tMaxNew, tDiff, !reverse, ++recursion); + } + } + + function getConvexHull(dq0, dq1, dq2, dq3) { + var p0 = [ 0, dq0 ], + p1 = [ 1 / 3, dq1 ], + p2 = [ 2 / 3, dq2 ], + p3 = [ 1, dq3 ], + getSignedDistance = Line.getSignedDistance, + dist1 = getSignedDistance(0, dq0, 1, dq3, 1 / 3, dq1), + dist2 = getSignedDistance(0, dq0, 1, dq3, 2 / 3, dq2), + flip = false, + hull; + if (dist1 * dist2 < 0) { + hull = [[p0, p1, p3], [p0, p2, p3]]; + flip = dist1 < 0; + } else { + var pmax, cross = 0, + distZero = dist1 === 0 || dist2 === 0; + if (Math.abs(dist1) > Math.abs(dist2)) { + pmax = p1; + cross = (dq3 - dq2 - (dq3 - dq0) / 3) + * (2 * (dq3 - dq2) - dq3 + dq1) / 3; + } else { + pmax = p2; + cross = (dq1 - dq0 + (dq0 - dq3) / 3) + * (-2 * (dq0 - dq1) + dq0 - dq2) / 3; + } + hull = cross < 0 || distZero + ? [[p0, pmax, p3], [p0, p3]] + : [[p0, p1, p2, p3], [p0, p3]]; + flip = dist1 ? dist1 < 0 : dist2 < 0; + } + return flip ? hull.reverse() : hull; + } + + function clipConvexHull(hullTop, hullBottom, dMin, dMax) { + var tProxy, + tVal = null, + px, py, + qx, qy; + for (var i = 0, l = hullBottom.length - 1; i < l; i++) { + py = hullBottom[i][1]; + qy = hullBottom[i + 1][1]; + if (py < qy) { + tProxy = null; + } else if (qy <= dMax) { + px = hullBottom[i][0]; + qx = hullBottom[i + 1][0]; + tProxy = px + (dMax - py) * (qx - px) / (qy - py); + } else { + continue; + } + break; + } + if (hullTop[0][1] <= dMax) + tProxy = hullTop[0][0]; + for (var i = 0, l = hullTop.length - 1; i < l; i++) { + py = hullTop[i][1]; + qy = hullTop[i + 1][1]; + if (py >= dMin) { + tVal = tProxy; + } else if (py > qy) { + tVal = null; + } else if (qy >= dMin) { + px = hullTop[i][0]; + qx = hullTop[i + 1][0]; + tVal = px + (dMin - py) * (qx - px) / (qy - py); + } else { + continue; + } + break; + } + return tVal; + } + + function addCurveLineIntersections(v1, v2, curve1, curve2, locations, + include) { + var flip = Curve.isLinear(v1), + vc = flip ? v2 : v1, + vl = flip ? v1 : v2, + lx1 = vl[0], ly1 = vl[1], + lx2 = vl[6], ly2 = vl[7], + ldx = lx2 - lx1, + ldy = ly2 - ly1, + angle = Math.atan2(-ldy, ldx), + sin = Math.sin(angle), + cos = Math.cos(angle), + rlx2 = ldx * cos - ldy * sin, + rvl = [0, 0, 0, 0, rlx2, 0, rlx2, 0], + rvc = []; + for(var i = 0; i < 8; i += 2) { + var x = vc[i] - lx1, + y = vc[i + 1] - ly1; + rvc.push( + x * cos - y * sin, + y * cos + x * sin); + } + var roots = [], + count = Curve.solveCubic(rvc, 1, 0, roots, 0, 1); + for (var i = 0; i < count; i++) { + var tc = roots[i], + x = Curve.evaluate(rvc, tc, 0).x; + if (x >= 0 && x <= rlx2) { + var tl = Curve.getParameterOf(rvl, x, 0), + t1 = flip ? tl : tc, + t2 = flip ? tc : tl; + addLocation(locations, include, + curve1, t1, Curve.evaluate(v1, t1, 0), + curve2, t2, Curve.evaluate(v2, t2, 0)); + } + } + } + + function addLineIntersection(v1, v2, curve1, curve2, locations, include) { + var point = Line.intersect( + v1[0], v1[1], v1[6], v1[7], + v2[0], v2[1], v2[6], v2[7]); + if (point) { + var x = point.x, + y = point.y; + addLocation(locations, include, + curve1, Curve.getParameterOf(v1, x, y), point, + curve2, Curve.getParameterOf(v2, x, y), point); + } + } + + return { statics: { + getIntersections: function(v1, v2, curve1, curve2, locations, include) { + var linear1 = Curve.isLinear(v1), + linear2 = Curve.isLinear(v2); + (linear1 && linear2 + ? addLineIntersection + : linear1 || linear2 + ? addCurveLineIntersections + : addCurveIntersections)( + v1, v2, curve1, curve2, locations, include, + 0, 1, 0, 1, 0, false, 0); + return locations; + } + }}; +}); + +var CurveLocation = Base.extend({ + _class: 'CurveLocation', + beans: true, + + initialize: function CurveLocation(curve, parameter, point, _curve2, + _parameter2, _point2, _distance) { + this._id = CurveLocation._id = (CurveLocation._id || 0) + 1; + this._curve = curve; + this._segment1 = curve._segment1; + this._segment2 = curve._segment2; + this._parameter = parameter; + this._point = point; + this._curve2 = _curve2; + this._parameter2 = _parameter2; + this._point2 = _point2; + this._distance = _distance; + }, + + getSegment: function(_preferFirst) { + if (!this._segment) { + var curve = this.getCurve(), + parameter = this.getParameter(); + if (parameter === 1) { + this._segment = curve._segment2; + } else if (parameter === 0 || _preferFirst) { + this._segment = curve._segment1; + } else if (parameter == null) { + return null; + } else { + this._segment = curve.getPartLength(0, parameter) + < curve.getPartLength(parameter, 1) + ? curve._segment1 + : curve._segment2; + } + } + return this._segment; + }, + + getCurve: function(_uncached) { + if (!this._curve || _uncached) { + this._curve = this._segment1.getCurve(); + if (this._curve.getParameterOf(this._point) == null) + this._curve = this._segment2.getPrevious().getCurve(); + } + return this._curve; + }, + + getIntersection: function() { + var intersection = this._intersection; + if (!intersection && this._curve2) { + var param = this._parameter2; + this._intersection = intersection = new CurveLocation( + this._curve2, param, this._point2 || this._point, this); + intersection._intersection = this; + } + return intersection; + }, + + getPath: function() { + var curve = this.getCurve(); + return curve && curve._path; + }, + + getIndex: function() { + var curve = this.getCurve(); + return curve && curve.getIndex(); + }, + + getOffset: function() { + var path = this.getPath(); + return path && path._getOffset(this); + }, + + getCurveOffset: function() { + var curve = this.getCurve(), + parameter = this.getParameter(); + return parameter != null && curve && curve.getPartLength(0, parameter); + }, + + getParameter: function(_uncached) { + if ((this._parameter == null || _uncached) && this._point) { + var curve = this.getCurve(_uncached && this._point); + this._parameter = curve && curve.getParameterOf(this._point); + } + return this._parameter; + }, + + getPoint: function(_uncached) { + if ((!this._point || _uncached) && this._parameter != null) { + var curve = this.getCurve(); + this._point = curve && curve.getPointAt(this._parameter, true); + } + return this._point; + }, + + getTangent: function() { + var parameter = this.getParameter(), + curve = this.getCurve(); + return parameter != null && curve && curve.getTangentAt(parameter, true); + }, + + getNormal: function() { + var parameter = this.getParameter(), + curve = this.getCurve(); + return parameter != null && curve && curve.getNormalAt(parameter, true); + }, + + getDistance: function() { + return this._distance; + }, + + divide: function() { + var curve = this.getCurve(true); + return curve && curve.divide(this.getParameter(true), true); + }, + + split: function() { + var curve = this.getCurve(true); + return curve && curve.split(this.getParameter(true), true); + }, + + equals: function(loc) { + var isZero = Numerical.isZero; + return this === loc + || loc + && this._curve === loc._curve + && this._curve2 === loc._curve2 + && isZero(this._parameter - loc._parameter) + && isZero(this._parameter2 - loc._parameter2) + || false; + }, + + toString: function() { + var parts = [], + point = this.getPoint(), + f = Formatter.instance; + if (point) + parts.push('point: ' + point); + var index = this.getIndex(); + if (index != null) + parts.push('index: ' + index); + var parameter = this.getParameter(); + if (parameter != null) + parts.push('parameter: ' + f.number(parameter)); + if (this._distance != null) + parts.push('distance: ' + f.number(this._distance)); + return '{ ' + parts.join(', ') + ' }'; + } +}); + +var PathItem = Item.extend({ + _class: 'PathItem', + + initialize: function PathItem() { + }, + + getIntersections: function(path, _expand) { + if (this === path) + path = null; + if (path && !this.getBounds().touches(path.getBounds())) + return []; + var locations = [], + curves1 = this.getCurves(), + curves2 = path ? path.getCurves() : curves1, + matrix1 = this._matrix.orNullIfIdentity(), + matrix2 = path ? path._matrix.orNullIfIdentity() : matrix1, + length1 = curves1.length, + length2 = path ? curves2.length : length1, + values2 = [], + MIN = 1e-11, + MAX = 1 - 1e-11; + for (var i = 0; i < length2; i++) + values2[i] = curves2[i].getValues(matrix2); + for (var i = 0; i < length1; i++) { + var curve1 = curves1[i], + values1 = path ? curve1.getValues(matrix1) : values2[i]; + if (!path) { + var seg1 = curve1.getSegment1(), + seg2 = curve1.getSegment2(), + h1 = seg1._handleOut, + h2 = seg2._handleIn; + if (new Line(seg1._point.subtract(h1), h1.multiply(2), true) + .intersect(new Line(seg2._point.subtract(h2), + h2.multiply(2), true), false)) { + var parts = Curve.subdivide(values1); + Curve.getIntersections( + parts[0], parts[1], curve1, curve1, locations, + function(loc) { + if (loc._parameter <= MAX) { + loc._parameter /= 2; + loc._parameter2 = 0.5 + loc._parameter2 / 2; + return true; + } + } + ); + } + } + for (var j = path ? 0 : i + 1; j < length2; j++) { + Curve.getIntersections( + values1, values2[j], curve1, curves2[j], locations, + !path && (j === i + 1 || j === length2 - 1 && i === 0) + && function(loc) { + var t = loc._parameter; + return t >= MIN && t <= MAX; + } + ); + } + } + var last = locations.length - 1; + for (var i = last; i >= 0; i--) { + var loc = locations[i], + next = loc._curve.getNext(), + next2 = loc._curve2.getNext(); + if (next && loc._parameter >= MAX) { + loc._parameter = 0; + loc._curve = next; + } + if (next2 && loc._parameter2 >= MAX) { + loc._parameter2 = 0; + loc._curve2 = next2; + } + } + + function compare(loc1, loc2) { + var path1 = loc1.getPath(), + path2 = loc2.getPath(); + return path1 === path2 + ? (loc1.getIndex() + loc1.getParameter()) + - (loc2.getIndex() + loc2.getParameter()) + : path1._id - path2._id; + } + + if (last > 0) { + locations.sort(compare); + for (var i = last; i >= 0; i--) { + if (locations[i].equals(locations[i === 0 ? last : i - 1])) { + locations.splice(i, 1); + last--; + } + } + } + if (_expand) { + for (var i = last; i >= 0; i--) + locations.push(locations[i].getIntersection()); + locations.sort(compare); + } + return locations; + }, + + setPathData: function(data) { + + var parts = data.match(/[mlhvcsqtaz][^mlhvcsqtaz]*/ig), + coords, + relative = false, + previous, + control, + current = new Point(), + start = new Point(); + + function getCoord(index, coord) { + var val = +coords[index]; + if (relative) + val += current[coord]; + return val; + } + + function getPoint(index) { + return new Point( + getCoord(index, 'x'), + getCoord(index + 1, 'y') + ); + } + + this.clear(); + + for (var i = 0, l = parts.length; i < l; i++) { + var part = parts[i], + command = part[0], + lower = command.toLowerCase(); + coords = part.match(/[+-]?(?:\d*\.\d+|\d+\.?)(?:[eE][+-]?\d+)?/g); + var length = coords && coords.length; + relative = command === lower; + if (previous === 'z' && !/[mz]/.test(lower)) + this.moveTo(current = start); + switch (lower) { + case 'm': + case 'l': + var move = lower === 'm'; + if (move && previous && previous !== 'z') + this.closePath(true); + for (var j = 0; j < length; j += 2) + this[j === 0 && move ? 'moveTo' : 'lineTo']( + current = getPoint(j)); + control = current; + if (move) + start = current; + break; + case 'h': + case 'v': + var coord = lower === 'h' ? 'x' : 'y'; + for (var j = 0; j < length; j++) { + current[coord] = getCoord(j, coord); + this.lineTo(current); + } + control = current; + break; + case 'c': + for (var j = 0; j < length; j += 6) { + this.cubicCurveTo( + getPoint(j), + control = getPoint(j + 2), + current = getPoint(j + 4)); + } + break; + case 's': + for (var j = 0; j < length; j += 4) { + this.cubicCurveTo( + /[cs]/.test(previous) + ? current.multiply(2).subtract(control) + : current, + control = getPoint(j), + current = getPoint(j + 2)); + previous = lower; + } + break; + case 'q': + for (var j = 0; j < length; j += 4) { + this.quadraticCurveTo( + control = getPoint(j), + current = getPoint(j + 2)); + } + break; + case 't': + for (var j = 0; j < length; j += 2) { + this.quadraticCurveTo( + control = (/[qt]/.test(previous) + ? current.multiply(2).subtract(control) + : current), + current = getPoint(j)); + previous = lower; + } + break; + case 'a': + for (var j = 0; j < length; j += 7) { + this.arcTo(current = getPoint(j + 5), + new Size(+coords[0], +coords[1]), + +coords[2], +coords[4], +coords[3]); + } + break; + case 'z': + this.closePath(true); + break; + } + previous = lower; + } + }, + + _canComposite: function() { + return !(this.hasFill() && this.hasStroke()); + }, + + _contains: function(point) { + var winding = this._getWinding(point, false, true); + return !!(this.getWindingRule() === 'evenodd' ? winding & 1 : winding); + } + +}); + +var Path = PathItem.extend({ + _class: 'Path', + _serializeFields: { + segments: [], + closed: false + }, + + initialize: function Path(arg) { + this._closed = false; + this._segments = []; + var segments = Array.isArray(arg) + ? typeof arg[0] === 'object' + ? arg + : arguments + : arg && (arg.size === undefined && (arg.x !== undefined + || arg.point !== undefined)) + ? arguments + : null; + if (segments && segments.length > 0) { + this.setSegments(segments); + } else { + this._curves = undefined; + this._selectedSegmentState = 0; + if (!segments && typeof arg === 'string') { + this.setPathData(arg); + arg = null; + } + } + this._initialize(!segments && arg); + }, + + _equals: function(item) { + return Base.equals(this._segments, item._segments); + }, + + clone: function(insert) { + var copy = new Path(Item.NO_INSERT); + copy.setSegments(this._segments); + copy._closed = this._closed; + if (this._clockwise !== undefined) + copy._clockwise = this._clockwise; + return this._clone(copy, insert); + }, + + _changed: function _changed(flags) { + _changed.base.call(this, flags); + if (flags & 8) { + var parent = this._parent; + if (parent) + parent._currentPath = undefined; + this._length = this._clockwise = undefined; + if (this._curves && !(flags & 16)) { + for (var i = 0, l = this._curves.length; i < l; i++) + this._curves[i]._changed(); + } + this._monoCurves = undefined; + } else if (flags & 32) { + this._bounds = undefined; + } + }, + + getStyle: function() { + var parent = this._parent; + return (parent instanceof CompoundPath ? parent : this)._style; + }, + + getSegments: function() { + return this._segments; + }, + + setSegments: function(segments) { + var fullySelected = this.isFullySelected(); + this._segments.length = 0; + this._selectedSegmentState = 0; + this._curves = undefined; + if (segments && segments.length > 0) + this._add(Segment.readAll(segments)); + if (fullySelected) + this.setFullySelected(true); + }, + + getFirstSegment: function() { + return this._segments[0]; + }, + + getLastSegment: function() { + return this._segments[this._segments.length - 1]; + }, + + getCurves: function() { + var curves = this._curves, + segments = this._segments; + if (!curves) { + var length = this._countCurves(); + curves = this._curves = new Array(length); + for (var i = 0; i < length; i++) + curves[i] = new Curve(this, segments[i], + segments[i + 1] || segments[0]); + } + return curves; + }, + + getFirstCurve: function() { + return this.getCurves()[0]; + }, + + getLastCurve: function() { + var curves = this.getCurves(); + return curves[curves.length - 1]; + }, + + isClosed: function() { + return this._closed; + }, + + setClosed: function(closed) { + if (this._closed != (closed = !!closed)) { + this._closed = closed; + if (this._curves) { + var length = this._curves.length = this._countCurves(); + if (closed) + this._curves[length - 1] = new Curve(this, + this._segments[length - 1], this._segments[0]); + } + this._changed(25); + } + } +}, { + beans: true, + + getPathData: function(_precision) { + var segments = this._segments, + f = Formatter.instance, + parts = []; + + function addCurve(seg1, seg2, skipLine) { + var point1 = seg1._point, + point2 = seg2._point, + handle1 = seg1._handleOut, + handle2 = seg2._handleIn; + if (handle1.isZero() && handle2.isZero()) { + if (!skipLine) { + parts.push('L' + f.point(point2, _precision)); + } + } else { + var end = point2.subtract(point1); + parts.push('c' + f.point(handle1, _precision) + + ' ' + f.point(end.add(handle2), _precision) + + ' ' + f.point(end, _precision)); + } + } + + if (segments.length === 0) + return ''; + parts.push('M' + f.point(segments[0]._point)); + for (var i = 0, l = segments.length - 1; i < l; i++) + addCurve(segments[i], segments[i + 1], false); + if (this._closed) { + addCurve(segments[segments.length - 1], segments[0], true); + parts.push('z'); + } + return parts.join(''); + } +}, { + + isEmpty: function() { + return this._segments.length === 0; + }, + + isPolygon: function() { + for (var i = 0, l = this._segments.length; i < l; i++) { + if (!this._segments[i].isLinear()) + return false; + } + return true; + }, + + _transformContent: function(matrix) { + var coords = new Array(6); + for (var i = 0, l = this._segments.length; i < l; i++) + this._segments[i]._transformCoordinates(matrix, coords, true); + return true; + }, + + _add: function(segs, index) { + var segments = this._segments, + curves = this._curves, + amount = segs.length, + append = index == null, + index = append ? segments.length : index; + for (var i = 0; i < amount; i++) { + var segment = segs[i]; + if (segment._path) + segment = segs[i] = segment.clone(); + segment._path = this; + segment._index = index + i; + if (segment._selectionState) + this._updateSelection(segment, 0, segment._selectionState); + } + if (append) { + segments.push.apply(segments, segs); + } else { + segments.splice.apply(segments, [index, 0].concat(segs)); + for (var i = index + amount, l = segments.length; i < l; i++) + segments[i]._index = i; + } + if (curves || segs._curves) { + if (!curves) + curves = this._curves = []; + var from = index > 0 ? index - 1 : index, + start = from, + to = Math.min(from + amount, this._countCurves()); + if (segs._curves) { + curves.splice.apply(curves, [from, 0].concat(segs._curves)); + start += segs._curves.length; + } + for (var i = start; i < to; i++) + curves.splice(i, 0, new Curve(this, null, null)); + this._adjustCurves(from, to); + } + this._changed(25); + return segs; + }, + + _adjustCurves: function(from, to) { + var segments = this._segments, + curves = this._curves, + curve; + for (var i = from; i < to; i++) { + curve = curves[i]; + curve._path = this; + curve._segment1 = segments[i]; + curve._segment2 = segments[i + 1] || segments[0]; + } + if (curve = curves[this._closed && from === 0 ? segments.length - 1 + : from - 1]) + curve._segment2 = segments[from] || segments[0]; + if (curve = curves[to]) + curve._segment1 = segments[to]; + }, + + _countCurves: function() { + var length = this._segments.length; + return !this._closed && length > 0 ? length - 1 : length; + }, + + add: function(segment1 ) { + return arguments.length > 1 && typeof segment1 !== 'number' + ? this._add(Segment.readAll(arguments)) + : this._add([ Segment.read(arguments) ])[0]; + }, + + insert: function(index, segment1 ) { + return arguments.length > 2 && typeof segment1 !== 'number' + ? this._add(Segment.readAll(arguments, 1), index) + : this._add([ Segment.read(arguments, 1) ], index)[0]; + }, + + addSegment: function() { + return this._add([ Segment.read(arguments) ])[0]; + }, + + insertSegment: function(index ) { + return this._add([ Segment.read(arguments, 1) ], index)[0]; + }, + + addSegments: function(segments) { + return this._add(Segment.readAll(segments)); + }, + + insertSegments: function(index, segments) { + return this._add(Segment.readAll(segments), index); + }, + + removeSegment: function(index) { + return this.removeSegments(index, index + 1)[0] || null; + }, + + removeSegments: function(from, to, _includeCurves) { + from = from || 0; + to = Base.pick(to, this._segments.length); + var segments = this._segments, + curves = this._curves, + count = segments.length, + removed = segments.splice(from, to - from), + amount = removed.length; + if (!amount) + return removed; + for (var i = 0; i < amount; i++) { + var segment = removed[i]; + if (segment._selectionState) + this._updateSelection(segment, segment._selectionState, 0); + segment._index = segment._path = null; + } + for (var i = from, l = segments.length; i < l; i++) + segments[i]._index = i; + if (curves) { + var index = from > 0 && to === count + (this._closed ? 1 : 0) + ? from - 1 + : from, + curves = curves.splice(index, amount); + if (_includeCurves) + removed._curves = curves.slice(1); + this._adjustCurves(index, index); + } + this._changed(25); + return removed; + }, + + clear: '#removeSegments', + + isFullySelected: function() { + var length = this._segments.length; + return this._selected && length > 0 && this._selectedSegmentState + === length * 7; + }, + + setFullySelected: function(selected) { + if (selected) + this._selectSegments(true); + this.setSelected(selected); + }, + + setSelected: function setSelected(selected) { + if (!selected) + this._selectSegments(false); + setSelected.base.call(this, selected); + }, + + _selectSegments: function(selected) { + var length = this._segments.length; + this._selectedSegmentState = selected + ? length * 7 : 0; + for (var i = 0; i < length; i++) + this._segments[i]._selectionState = selected + ? 7 : 0; + }, + + _updateSelection: function(segment, oldState, newState) { + segment._selectionState = newState; + var total = this._selectedSegmentState += newState - oldState; + if (total > 0) + this.setSelected(true); + }, + + flatten: function(maxDistance) { + var flattener = new PathFlattener(this), + pos = 0, + step = flattener.length / Math.ceil(flattener.length / maxDistance), + end = flattener.length + (this._closed ? -step : step) / 2; + var segments = []; + while (pos <= end) { + segments.push(new Segment(flattener.evaluate(pos, 0))); + pos += step; + } + this.setSegments(segments); + }, + + reduce: function() { + var curves = this.getCurves(); + for (var i = curves.length - 1; i >= 0; i--) { + var curve = curves[i]; + if (curve.isLinear() && curve.getLength() === 0) + curve.remove(); + } + return this; + }, + + simplify: function(tolerance) { + if (this._segments.length > 2) { + var fitter = new PathFitter(this, tolerance || 2.5); + this.setSegments(fitter.fit()); + } + }, + + split: function(index, parameter) { + if (parameter === null) + return; + if (arguments.length === 1) { + var arg = index; + if (typeof arg === 'number') + arg = this.getLocationAt(arg); + index = arg.index; + parameter = arg.parameter; + } + var tolerance = 0.00001; + if (parameter >= 1 - tolerance) { + index++; + parameter--; + } + var curves = this.getCurves(); + if (index >= 0 && index < curves.length) { + if (parameter > tolerance) { + curves[index++].divide(parameter, true); + } + var segs = this.removeSegments(index, this._segments.length, true), + path; + if (this._closed) { + this.setClosed(false); + path = this; + } else if (index > 0) { + path = this._clone(new Path().insertAbove(this, true)); + } + path._add(segs, 0); + this.addSegment(segs[0]); + return path; + } + return null; + }, + + isClockwise: function() { + if (this._clockwise !== undefined) + return this._clockwise; + return Path.isClockwise(this._segments); + }, + + setClockwise: function(clockwise) { + if (this.isClockwise() != (clockwise = !!clockwise)) + this.reverse(); + this._clockwise = clockwise; + }, + + reverse: function() { + this._segments.reverse(); + for (var i = 0, l = this._segments.length; i < l; i++) { + var segment = this._segments[i]; + var handleIn = segment._handleIn; + segment._handleIn = segment._handleOut; + segment._handleOut = handleIn; + segment._index = i; + } + this._curves = null; + if (this._clockwise !== undefined) + this._clockwise = !this._clockwise; + }, + + join: function(path) { + if (path) { + var segments = path._segments, + last1 = this.getLastSegment(), + last2 = path.getLastSegment(); + if (last1._point.equals(last2._point)) + path.reverse(); + var first1, + first2 = path.getFirstSegment(); + if (last1._point.equals(first2._point)) { + last1.setHandleOut(first2._handleOut); + this._add(segments.slice(1)); + } else { + first1 = this.getFirstSegment(); + if (first1._point.equals(first2._point)) + path.reverse(); + last2 = path.getLastSegment(); + if (first1._point.equals(last2._point)) { + first1.setHandleIn(last2._handleIn); + this._add(segments.slice(0, segments.length - 1), 0); + } else { + this._add(segments.slice()); + } + } + if (path.closed) + this._add([segments[0]]); + path.remove(); + } + var first = this.getFirstSegment(), + last = this.getLastSegment(); + if (first !== last && first._point.equals(last._point)) { + first.setHandleIn(last._handleIn); + last.remove(); + this.setClosed(true); + } + }, + + getLength: function() { + if (this._length == null) { + var curves = this.getCurves(); + this._length = 0; + for (var i = 0, l = curves.length; i < l; i++) + this._length += curves[i].getLength(); + } + return this._length; + }, + + getArea: function() { + var curves = this.getCurves(); + var area = 0; + for (var i = 0, l = curves.length; i < l; i++) + area += curves[i].getArea(); + return area; + }, + + _getOffset: function(location) { + var index = location && location.getIndex(); + if (index != null) { + var curves = this.getCurves(), + offset = 0; + for (var i = 0; i < index; i++) + offset += curves[i].getLength(); + var curve = curves[index], + parameter = location.getParameter(); + if (parameter > 0) + offset += curve.getPartLength(0, parameter); + return offset; + } + return null; + }, + + getLocationOf: function(point) { + var point = Point.read(arguments), + curves = this.getCurves(); + for (var i = 0, l = curves.length; i < l; i++) { + var loc = curves[i].getLocationOf(point); + if (loc) + return loc; + } + return null; + }, + + getLocationAt: function(offset, isParameter) { + var curves = this.getCurves(), + length = 0; + if (isParameter) { + var index = ~~offset; + return curves[index].getLocationAt(offset - index, true); + } + for (var i = 0, l = curves.length; i < l; i++) { + var start = length, + curve = curves[i]; + length += curve.getLength(); + if (length > offset) { + return curve.getLocationAt(offset - start); + } + } + if (offset <= this.getLength()) + return new CurveLocation(curves[curves.length - 1], 1); + return null; + }, + + getPointAt: function(offset, isParameter) { + var loc = this.getLocationAt(offset, isParameter); + return loc && loc.getPoint(); + }, + + getTangentAt: function(offset, isParameter) { + var loc = this.getLocationAt(offset, isParameter); + return loc && loc.getTangent(); + }, + + getNormalAt: function(offset, isParameter) { + var loc = this.getLocationAt(offset, isParameter); + return loc && loc.getNormal(); + }, + + getNearestLocation: function(point) { + var point = Point.read(arguments), + curves = this.getCurves(), + minDist = Infinity, + minLoc = null; + for (var i = 0, l = curves.length; i < l; i++) { + var loc = curves[i].getNearestLocation(point); + if (loc._distance < minDist) { + minDist = loc._distance; + minLoc = loc; + } + } + return minLoc; + }, + + getNearestPoint: function(point) { + var point = Point.read(arguments); + return this.getNearestLocation(point).getPoint(); + }, + + toShape: function(insert) { + if (!this._closed) + return null; + + var segments = this._segments, + type, + size, + radius, + topCenter; + + function isColinear(i, j) { + return segments[i].isColinear(segments[j]); + } + + function isOrthogonal(i) { + return segments[i].isOrthogonal(); + } + + function isArc(i) { + return segments[i].isArc(); + } + + function getDistance(i, j) { + return segments[i]._point.getDistance(segments[j]._point); + } + + if (this.isPolygon() && segments.length === 4 + && isColinear(0, 2) && isColinear(1, 3) && isOrthogonal(1)) { + type = Shape.Rectangle; + size = new Size(getDistance(0, 3), getDistance(0, 1)); + topCenter = segments[1]._point.add(segments[2]._point).divide(2); + } else if (segments.length === 8 && isArc(0) && isArc(2) && isArc(4) + && isArc(6) && isColinear(1, 5) && isColinear(3, 7)) { + type = Shape.Rectangle; + size = new Size(getDistance(1, 6), getDistance(0, 3)); + radius = size.subtract(new Size(getDistance(0, 7), + getDistance(1, 2))).divide(2); + topCenter = segments[3]._point.add(segments[4]._point).divide(2); + } else if (segments.length === 4 + && isArc(0) && isArc(1) && isArc(2) && isArc(3)) { + if (Numerical.isZero(getDistance(0, 2) - getDistance(1, 3))) { + type = Shape.Circle; + radius = getDistance(0, 2) / 2; + } else { + type = Shape.Ellipse; + radius = new Size(getDistance(2, 0) / 2, getDistance(3, 1) / 2); + } + topCenter = segments[1]._point; + } + + if (type) { + var center = this.getPosition(true), + shape = new type({ + center: center, + size: size, + radius: radius, + insert: false + }); + shape.rotate(topCenter.subtract(center).getAngle() + 90); + shape.setStyle(this._style); + if (insert || insert === undefined) + shape.insertAbove(this); + return shape; + } + return null; + }, + + _hitTest: function(point, options) { + var that = this, + style = this.getStyle(), + segments = this._segments, + numSegments = segments.length, + closed = this._closed, + tolerancePadding = options._tolerancePadding, + strokePadding = tolerancePadding, + join, cap, miterLimit, + area, loc, res, + hasStroke = options.stroke && style.hasStroke(), + hasFill = options.fill && style.hasFill(), + radius = hasStroke ? style.getStrokeWidth() / 2 + : hasFill ? 0 : null; + if (radius != null) { + if (radius > 0) { + join = style.getStrokeJoin(); + cap = style.getStrokeCap(); + miterLimit = radius * style.getMiterLimit(); + strokePadding = tolerancePadding.add(new Point(radius, radius)); + } else { + join = cap = 'round'; + } + } + + function isCloseEnough(pt, padding) { + return point.subtract(pt).divide(padding).length <= 1; + } + + function checkSegmentPoint(seg, pt, name) { + if (!options.selected || pt.isSelected()) { + var anchor = seg._point; + if (pt !== anchor) + pt = pt.add(anchor); + if (isCloseEnough(pt, strokePadding)) { + return new HitResult(name, that, { + segment: seg, + point: pt + }); + } + } + } + + function checkSegmentPoints(seg, ends) { + return (ends || options.segments) + && checkSegmentPoint(seg, seg._point, 'segment') + || (!ends && options.handles) && ( + checkSegmentPoint(seg, seg._handleIn, 'handle-in') || + checkSegmentPoint(seg, seg._handleOut, 'handle-out')); + } + + function addToArea(point) { + area.add(point); + } + + function checkSegmentStroke(segment) { + if (join !== 'round' || cap !== 'round') { + area = new Path({ internal: true, closed: true }); + if (closed || segment._index > 0 + && segment._index < numSegments - 1) { + if (join !== 'round' && (segment._handleIn.isZero() + || segment._handleOut.isZero())) + Path._addBevelJoin(segment, join, radius, miterLimit, + addToArea, true); + } else if (cap !== 'round') { + Path._addSquareCap(segment, cap, radius, addToArea, true); + } + if (!area.isEmpty()) { + var loc; + return area.contains(point) + || (loc = area.getNearestLocation(point)) + && isCloseEnough(loc.getPoint(), tolerancePadding); + } + } + return isCloseEnough(segment._point, strokePadding); + } + + if (options.ends && !options.segments && !closed) { + if (res = checkSegmentPoints(segments[0], true) + || checkSegmentPoints(segments[numSegments - 1], true)) + return res; + } else if (options.segments || options.handles) { + for (var i = 0; i < numSegments; i++) + if (res = checkSegmentPoints(segments[i])) + return res; + } + if (radius != null) { + loc = this.getNearestLocation(point); + if (loc) { + var parameter = loc.getParameter(); + if (parameter === 0 || parameter === 1 && numSegments > 1) { + if (!checkSegmentStroke(loc.getSegment())) + loc = null; + } else if (!isCloseEnough(loc.getPoint(), strokePadding)) { + loc = null; + } + } + if (!loc && join === 'miter' && numSegments > 1) { + for (var i = 0; i < numSegments; i++) { + var segment = segments[i]; + if (point.getDistance(segment._point) <= miterLimit + && checkSegmentStroke(segment)) { + loc = segment.getLocation(); + break; + } + } + } + } + return !loc && hasFill && this._contains(point) || loc && !hasStroke + ? new HitResult('fill', this) + : loc + ? new HitResult('stroke', this, { + location: loc, + point: loc.getPoint() + }) + : null; + } + +}, new function() { + + function drawHandles(ctx, segments, matrix, size) { + var half = size / 2; + + function drawHandle(index) { + var hX = coords[index], + hY = coords[index + 1]; + if (pX != hX || pY != hY) { + ctx.beginPath(); + ctx.moveTo(pX, pY); + ctx.lineTo(hX, hY); + ctx.stroke(); + ctx.beginPath(); + ctx.arc(hX, hY, half, 0, Math.PI * 2, true); + ctx.fill(); + } + } + + var coords = new Array(6); + for (var i = 0, l = segments.length; i < l; i++) { + var segment = segments[i]; + segment._transformCoordinates(matrix, coords, false); + var state = segment._selectionState, + pX = coords[0], + pY = coords[1]; + if (state & 1) + drawHandle(2); + if (state & 2) + drawHandle(4); + ctx.fillRect(pX - half, pY - half, size, size); + if (!(state & 4)) { + var fillStyle = ctx.fillStyle; + ctx.fillStyle = '#ffffff'; + ctx.fillRect(pX - half + 1, pY - half + 1, size - 2, size - 2); + ctx.fillStyle = fillStyle; + } + } + } + + function drawSegments(ctx, path, matrix) { + var segments = path._segments, + length = segments.length, + coords = new Array(6), + first = true, + curX, curY, + prevX, prevY, + inX, inY, + outX, outY; + + function drawSegment(i) { + var segment = segments[i]; + if (matrix) { + segment._transformCoordinates(matrix, coords, false); + curX = coords[0]; + curY = coords[1]; + } else { + var point = segment._point; + curX = point._x; + curY = point._y; + } + if (first) { + ctx.moveTo(curX, curY); + first = false; + } else { + if (matrix) { + inX = coords[2]; + inY = coords[3]; + } else { + var handle = segment._handleIn; + inX = curX + handle._x; + inY = curY + handle._y; + } + if (inX == curX && inY == curY && outX == prevX && outY == prevY) { + ctx.lineTo(curX, curY); + } else { + ctx.bezierCurveTo(outX, outY, inX, inY, curX, curY); + } + } + prevX = curX; + prevY = curY; + if (matrix) { + outX = coords[4]; + outY = coords[5]; + } else { + var handle = segment._handleOut; + outX = prevX + handle._x; + outY = prevY + handle._y; + } + } + + for (var i = 0; i < length; i++) + drawSegment(i); + if (path._closed && length > 0) + drawSegment(0); + } + + return { + _draw: function(ctx, param) { + var dontStart = param.dontStart, + dontPaint = param.dontFinish || param.clip; + if (!dontStart) + ctx.beginPath(); + + var style = this.getStyle(), + hasFill = style.hasFill(), + hasStroke = style.hasStroke(), + dashArray = style.getDashArray(), + dashLength = !paper.support.nativeDash && hasStroke + && dashArray && dashArray.length; + + function getOffset(i) { + return dashArray[((i % dashLength) + dashLength) % dashLength]; + } + + if (!dontStart && this._currentPath) { + ctx.currentPath = this._currentPath; + } else if (hasFill || hasStroke && !dashLength || dontPaint) { + drawSegments(ctx, this); + if (this._closed) + ctx.closePath(); + if (!dontStart) + this._currentPath = ctx.currentPath; + } + + if (!dontPaint && (hasFill || hasStroke)) { + this._setStyles(ctx); + if (hasFill) { + ctx.fill(style.getWindingRule()); + ctx.shadowColor = 'rgba(0,0,0,0)'; + } + if (hasStroke) { + if (dashLength) { + if (!dontStart) + ctx.beginPath(); + var flattener = new PathFlattener(this), + length = flattener.length, + from = -style.getDashOffset(), to, + i = 0; + from = from % length; + while (from > 0) { + from -= getOffset(i--) + getOffset(i--); + } + while (from < length) { + to = from + getOffset(i++); + if (from > 0 || to > 0) + flattener.drawPart(ctx, + Math.max(from, 0), Math.max(to, 0)); + from = to + getOffset(i++); + } + } + ctx.stroke(); + } + } + }, + + _drawSelected: function(ctx, matrix) { + ctx.beginPath(); + drawSegments(ctx, this, matrix); + ctx.stroke(); + drawHandles(ctx, this._segments, matrix, paper.settings.handleSize); + } + }; +}, new function() { + + function getFirstControlPoints(rhs) { + var n = rhs.length, + x = [], + tmp = [], + b = 2; + x[0] = rhs[0] / b; + for (var i = 1; i < n; i++) { + tmp[i] = 1 / b; + b = (i < n - 1 ? 4 : 2) - tmp[i]; + x[i] = (rhs[i] - x[i - 1]) / b; + } + for (var i = 1; i < n; i++) { + x[n - i - 1] -= tmp[n - i] * x[n - i]; + } + return x; + } + + return { + smooth: function() { + var segments = this._segments, + size = segments.length, + closed = this._closed, + n = size, + overlap = 0; + if (size <= 2) + return; + if (closed) { + overlap = Math.min(size, 4); + n += Math.min(size, overlap) * 2; + } + var knots = []; + for (var i = 0; i < size; i++) + knots[i + overlap] = segments[i]._point; + if (closed) { + for (var i = 0; i < overlap; i++) { + knots[i] = segments[i + size - overlap]._point; + knots[i + size + overlap] = segments[i]._point; + } + } else { + n--; + } + var rhs = []; + + for (var i = 1; i < n - 1; i++) + rhs[i] = 4 * knots[i]._x + 2 * knots[i + 1]._x; + rhs[0] = knots[0]._x + 2 * knots[1]._x; + rhs[n - 1] = 3 * knots[n - 1]._x; + var x = getFirstControlPoints(rhs); + + for (var i = 1; i < n - 1; i++) + rhs[i] = 4 * knots[i]._y + 2 * knots[i + 1]._y; + rhs[0] = knots[0]._y + 2 * knots[1]._y; + rhs[n - 1] = 3 * knots[n - 1]._y; + var y = getFirstControlPoints(rhs); + + if (closed) { + for (var i = 0, j = size; i < overlap; i++, j++) { + var f1 = i / overlap, + f2 = 1 - f1, + ie = i + overlap, + je = j + overlap; + x[j] = x[i] * f1 + x[j] * f2; + y[j] = y[i] * f1 + y[j] * f2; + x[je] = x[ie] * f2 + x[je] * f1; + y[je] = y[ie] * f2 + y[je] * f1; + } + n--; + } + var handleIn = null; + for (var i = overlap; i <= n - overlap; i++) { + var segment = segments[i - overlap]; + if (handleIn) + segment.setHandleIn(handleIn.subtract(segment._point)); + if (i < n) { + segment.setHandleOut( + new Point(x[i], y[i]).subtract(segment._point)); + handleIn = i < n - 1 + ? new Point( + 2 * knots[i + 1]._x - x[i + 1], + 2 * knots[i + 1]._y - y[i + 1]) + : new Point( + (knots[n]._x + x[n - 1]) / 2, + (knots[n]._y + y[n - 1]) / 2); + } + } + if (closed && handleIn) { + var segment = this._segments[0]; + segment.setHandleIn(handleIn.subtract(segment._point)); + } + } + }; +}, new function() { + function getCurrentSegment(that) { + var segments = that._segments; + if (segments.length === 0) + throw new Error('Use a moveTo() command first'); + return segments[segments.length - 1]; + } + + return { + moveTo: function() { + var segments = this._segments; + if (segments.length === 1) + this.removeSegment(0); + if (!segments.length) + this._add([ new Segment(Point.read(arguments)) ]); + }, + + moveBy: function() { + throw new Error('moveBy() is unsupported on Path items.'); + }, + + lineTo: function() { + this._add([ new Segment(Point.read(arguments)) ]); + }, + + cubicCurveTo: function() { + var handle1 = Point.read(arguments), + handle2 = Point.read(arguments), + to = Point.read(arguments), + current = getCurrentSegment(this); + current.setHandleOut(handle1.subtract(current._point)); + this._add([ new Segment(to, handle2.subtract(to)) ]); + }, + + quadraticCurveTo: function() { + var handle = Point.read(arguments), + to = Point.read(arguments), + current = getCurrentSegment(this)._point; + this.cubicCurveTo( + handle.add(current.subtract(handle).multiply(1 / 3)), + handle.add(to.subtract(handle).multiply(1 / 3)), + to + ); + }, + + curveTo: function() { + var through = Point.read(arguments), + to = Point.read(arguments), + t = Base.pick(Base.read(arguments), 0.5), + t1 = 1 - t, + current = getCurrentSegment(this)._point, + handle = through.subtract(current.multiply(t1 * t1)) + .subtract(to.multiply(t * t)).divide(2 * t * t1); + if (handle.isNaN()) + throw new Error( + 'Cannot put a curve through points with parameter = ' + t); + this.quadraticCurveTo(handle, to); + }, + + arcTo: function() { + var current = getCurrentSegment(this), + from = current._point, + to = Point.read(arguments), + through, + peek = Base.peek(arguments), + clockwise = Base.pick(peek, true), + center, extent, vector, matrix; + if (typeof clockwise === 'boolean') { + var middle = from.add(to).divide(2), + through = middle.add(middle.subtract(from).rotate( + clockwise ? -90 : 90)); + } else if (Base.remain(arguments) <= 2) { + through = to; + to = Point.read(arguments); + } else { + var radius = Size.read(arguments); + if (radius.isZero()) + return this.lineTo(to); + var rotation = Base.read(arguments), + clockwise = !!Base.read(arguments), + large = !!Base.read(arguments), + middle = from.add(to).divide(2), + pt = from.subtract(middle).rotate(-rotation), + x = pt.x, + y = pt.y, + abs = Math.abs, + EPSILON = 1e-11, + rx = abs(radius.width), + ry = abs(radius.height), + rxSq = rx * rx, + rySq = ry * ry, + xSq = x * x, + ySq = y * y; + var factor = Math.sqrt(xSq / rxSq + ySq / rySq); + if (factor > 1) { + rx *= factor; + ry *= factor; + rxSq = rx * rx; + rySq = ry * ry; + } + factor = (rxSq * rySq - rxSq * ySq - rySq * xSq) / + (rxSq * ySq + rySq * xSq); + if (abs(factor) < EPSILON) + factor = 0; + if (factor < 0) + throw new Error( + 'Cannot create an arc with the given arguments'); + center = new Point(rx * y / ry, -ry * x / rx) + .multiply((large === clockwise ? -1 : 1) + * Math.sqrt(factor)) + .rotate(rotation).add(middle); + matrix = new Matrix().translate(center).rotate(rotation) + .scale(rx, ry); + vector = matrix._inverseTransform(from); + extent = vector.getDirectedAngle(matrix._inverseTransform(to)); + if (!clockwise && extent > 0) + extent -= 360; + else if (clockwise && extent < 0) + extent += 360; + } + if (through) { + var l1 = new Line(from.add(through).divide(2), + through.subtract(from).rotate(90), true), + l2 = new Line(through.add(to).divide(2), + to.subtract(through).rotate(90), true), + line = new Line(from, to), + throughSide = line.getSide(through); + center = l1.intersect(l2, true); + if (!center) { + if (!throughSide) + return this.lineTo(to); + throw new Error( + 'Cannot create an arc with the given arguments'); + } + vector = from.subtract(center); + extent = vector.getDirectedAngle(to.subtract(center)); + var centerSide = line.getSide(center); + if (centerSide === 0) { + extent = throughSide * Math.abs(extent); + } else if (throughSide === centerSide) { + extent += extent < 0 ? 360 : -360; + } + } + var ext = Math.abs(extent), + count = ext >= 360 ? 4 : Math.ceil(ext / 90), + inc = extent / count, + half = inc * Math.PI / 360, + z = 4 / 3 * Math.sin(half) / (1 + Math.cos(half)), + segments = []; + for (var i = 0; i <= count; i++) { + var pt = to, + out = null; + if (i < count) { + out = vector.rotate(90).multiply(z); + if (matrix) { + pt = matrix._transformPoint(vector); + out = matrix._transformPoint(vector.add(out)) + .subtract(pt); + } else { + pt = center.add(vector); + } + } + if (i === 0) { + current.setHandleOut(out); + } else { + var _in = vector.rotate(-90).multiply(z); + if (matrix) { + _in = matrix._transformPoint(vector.add(_in)) + .subtract(pt); + } + segments.push(new Segment(pt, _in, out)); + } + vector = vector.rotate(inc); + } + this._add(segments); + }, + + lineBy: function() { + var to = Point.read(arguments), + current = getCurrentSegment(this)._point; + this.lineTo(current.add(to)); + }, + + curveBy: function() { + var through = Point.read(arguments), + to = Point.read(arguments), + parameter = Base.read(arguments), + current = getCurrentSegment(this)._point; + this.curveTo(current.add(through), current.add(to), parameter); + }, + + cubicCurveBy: function() { + var handle1 = Point.read(arguments), + handle2 = Point.read(arguments), + to = Point.read(arguments), + current = getCurrentSegment(this)._point; + this.cubicCurveTo(current.add(handle1), current.add(handle2), + current.add(to)); + }, + + quadraticCurveBy: function() { + var handle = Point.read(arguments), + to = Point.read(arguments), + current = getCurrentSegment(this)._point; + this.quadraticCurveTo(current.add(handle), current.add(to)); + }, + + arcBy: function() { + var current = getCurrentSegment(this)._point, + point = current.add(Point.read(arguments)), + clockwise = Base.pick(Base.peek(arguments), true); + if (typeof clockwise === 'boolean') { + this.arcTo(point, clockwise); + } else { + this.arcTo(point, current.add(Point.read(arguments))); + } + }, + + closePath: function(join) { + this.setClosed(true); + if (join) + this.join(); + } + }; +}, { + + _getBounds: function(getter, matrix) { + return Path[getter](this._segments, this._closed, this.getStyle(), + matrix); + }, + +statics: { + isClockwise: function(segments) { + var sum = 0; + for (var i = 0, l = segments.length; i < l; i++) { + var v = Curve.getValues( + segments[i], segments[i + 1 < l ? i + 1 : 0]); + for (var j = 2; j < 8; j += 2) + sum += (v[j - 2] - v[j]) * (v[j + 1] + v[j - 1]); + } + return sum > 0; + }, + + getBounds: function(segments, closed, style, matrix, strokePadding) { + var first = segments[0]; + if (!first) + return new Rectangle(); + var coords = new Array(6), + prevCoords = first._transformCoordinates(matrix, new Array(6), false), + min = prevCoords.slice(0, 2), + max = min.slice(), + roots = new Array(2); + + function processSegment(segment) { + segment._transformCoordinates(matrix, coords, false); + for (var i = 0; i < 2; i++) { + Curve._addBounds( + prevCoords[i], + prevCoords[i + 4], + coords[i + 2], + coords[i], + i, strokePadding ? strokePadding[i] : 0, min, max, roots); + } + var tmp = prevCoords; + prevCoords = coords; + coords = tmp; + } + + for (var i = 1, l = segments.length; i < l; i++) + processSegment(segments[i]); + if (closed) + processSegment(first); + return new Rectangle(min[0], min[1], max[0] - min[0], max[1] - min[1]); + }, + + getStrokeBounds: function(segments, closed, style, matrix) { + if (!style.hasStroke()) + return Path.getBounds(segments, closed, style, matrix); + var length = segments.length - (closed ? 0 : 1), + radius = style.getStrokeWidth() / 2, + padding = Path._getPenPadding(radius, matrix), + bounds = Path.getBounds(segments, closed, style, matrix, padding), + join = style.getStrokeJoin(), + cap = style.getStrokeCap(), + miterLimit = radius * style.getMiterLimit(); + var joinBounds = new Rectangle(new Size(padding).multiply(2)); + + function add(point) { + bounds = bounds.include(matrix + ? matrix._transformPoint(point, point) : point); + } + + function addRound(segment) { + bounds = bounds.unite(joinBounds.setCenter(matrix + ? matrix._transformPoint(segment._point) : segment._point)); + } + + function addJoin(segment, join) { + var handleIn = segment._handleIn, + handleOut = segment._handleOut + if (join === 'round' || !handleIn.isZero() && !handleOut.isZero() + && handleIn.isColinear(handleOut)) { + addRound(segment); + } else { + Path._addBevelJoin(segment, join, radius, miterLimit, add); + } + } + + function addCap(segment, cap) { + if (cap === 'round') { + addRound(segment); + } else { + Path._addSquareCap(segment, cap, radius, add); + } + } + + for (var i = 1; i < length; i++) + addJoin(segments[i], join); + if (closed) { + addJoin(segments[0], join); + } else if (length > 0) { + addCap(segments[0], cap); + addCap(segments[segments.length - 1], cap); + } + return bounds; + }, + + _getPenPadding: function(radius, matrix) { + if (!matrix) + return [radius, radius]; + var mx = matrix.shiftless(), + hor = mx.transform(new Point(radius, 0)), + ver = mx.transform(new Point(0, radius)), + phi = hor.getAngleInRadians(), + a = hor.getLength(), + b = ver.getLength(); + var sin = Math.sin(phi), + cos = Math.cos(phi), + tan = Math.tan(phi), + tx = -Math.atan(b * tan / a), + ty = Math.atan(b / (tan * a)); + return [Math.abs(a * Math.cos(tx) * cos - b * Math.sin(tx) * sin), + Math.abs(b * Math.sin(ty) * cos + a * Math.cos(ty) * sin)]; + }, + + _addBevelJoin: function(segment, join, radius, miterLimit, addPoint, area) { + var curve2 = segment.getCurve(), + curve1 = curve2.getPrevious(), + point = curve2.getPointAt(0, true), + normal1 = curve1.getNormalAt(1, true), + normal2 = curve2.getNormalAt(0, true), + step = normal1.getDirectedAngle(normal2) < 0 ? -radius : radius; + normal1.setLength(step); + normal2.setLength(step); + if (area) { + addPoint(point); + addPoint(point.add(normal1)); + } + if (join === 'miter') { + var corner = new Line( + point.add(normal1), + new Point(-normal1.y, normal1.x), true + ).intersect(new Line( + point.add(normal2), + new Point(-normal2.y, normal2.x), true + ), true); + if (corner && point.getDistance(corner) <= miterLimit) { + addPoint(corner); + if (!area) + return; + } + } + if (!area) + addPoint(point.add(normal1)); + addPoint(point.add(normal2)); + }, + + _addSquareCap: function(segment, cap, radius, addPoint, area) { + var point = segment._point, + loc = segment.getLocation(), + normal = loc.getNormal().normalize(radius); + if (area) { + addPoint(point.subtract(normal)); + addPoint(point.add(normal)); + } + if (cap === 'square') + point = point.add(normal.rotate(loc.getParameter() == 0 ? -90 : 90)); + addPoint(point.add(normal)); + addPoint(point.subtract(normal)); + }, + + getHandleBounds: function(segments, closed, style, matrix, strokePadding, + joinPadding) { + var coords = new Array(6), + x1 = Infinity, + x2 = -x1, + y1 = x1, + y2 = x2; + for (var i = 0, l = segments.length; i < l; i++) { + var segment = segments[i]; + segment._transformCoordinates(matrix, coords, false); + for (var j = 0; j < 6; j += 2) { + var padding = j == 0 ? joinPadding : strokePadding, + paddingX = padding ? padding[0] : 0, + paddingY = padding ? padding[1] : 0, + x = coords[j], + y = coords[j + 1], + xn = x - paddingX, + xx = x + paddingX, + yn = y - paddingY, + yx = y + paddingY; + if (xn < x1) x1 = xn; + if (xx > x2) x2 = xx; + if (yn < y1) y1 = yn; + if (yx > y2) y2 = yx; + } + } + return new Rectangle(x1, y1, x2 - x1, y2 - y1); + }, + + getRoughBounds: function(segments, closed, style, matrix) { + var strokeRadius = style.hasStroke() ? style.getStrokeWidth() / 2 : 0, + joinRadius = strokeRadius; + if (strokeRadius > 0) { + if (style.getStrokeJoin() === 'miter') + joinRadius = strokeRadius * style.getMiterLimit(); + if (style.getStrokeCap() === 'square') + joinRadius = Math.max(joinRadius, strokeRadius * Math.sqrt(2)); + } + return Path.getHandleBounds(segments, closed, style, matrix, + Path._getPenPadding(strokeRadius, matrix), + Path._getPenPadding(joinRadius, matrix)); + } +}}); + +Path.inject({ statics: new function() { + + var kappa = 0.5522847498307936, + ellipseSegments = [ + new Segment([-1, 0], [0, kappa ], [0, -kappa]), + new Segment([0, -1], [-kappa, 0], [kappa, 0 ]), + new Segment([1, 0], [0, -kappa], [0, kappa ]), + new Segment([0, 1], [kappa, 0 ], [-kappa, 0]) + ]; + + function createPath(segments, closed, args) { + var props = Base.getNamed(args), + path = new Path(props && props.insert === false && Item.NO_INSERT); + path._add(segments); + path._closed = closed; + return path.set(props); + } + + function createEllipse(center, radius, args) { + var segments = new Array(4); + for (var i = 0; i < 4; i++) { + var segment = ellipseSegments[i]; + segments[i] = new Segment( + segment._point.multiply(radius).add(center), + segment._handleIn.multiply(radius), + segment._handleOut.multiply(radius) + ); + } + return createPath(segments, true, args); + } + + return { + Line: function() { + return createPath([ + new Segment(Point.readNamed(arguments, 'from')), + new Segment(Point.readNamed(arguments, 'to')) + ], false, arguments); + }, + + Circle: function() { + var center = Point.readNamed(arguments, 'center'), + radius = Base.readNamed(arguments, 'radius'); + return createEllipse(center, new Size(radius), arguments); + }, + + Rectangle: function() { + var rect = Rectangle.readNamed(arguments, 'rectangle'), + radius = Size.readNamed(arguments, 'radius', 0, + { readNull: true }), + bl = rect.getBottomLeft(true), + tl = rect.getTopLeft(true), + tr = rect.getTopRight(true), + br = rect.getBottomRight(true), + segments; + if (!radius || radius.isZero()) { + segments = [ + new Segment(bl), + new Segment(tl), + new Segment(tr), + new Segment(br) + ]; + } else { + radius = Size.min(radius, rect.getSize(true).divide(2)); + var rx = radius.width, + ry = radius.height, + hx = rx * kappa, + hy = ry * kappa; + segments = [ + new Segment(bl.add(rx, 0), null, [-hx, 0]), + new Segment(bl.subtract(0, ry), [0, hy]), + new Segment(tl.add(0, ry), null, [0, -hy]), + new Segment(tl.add(rx, 0), [-hx, 0], null), + new Segment(tr.subtract(rx, 0), null, [hx, 0]), + new Segment(tr.add(0, ry), [0, -hy], null), + new Segment(br.subtract(0, ry), null, [0, hy]), + new Segment(br.subtract(rx, 0), [hx, 0]) + ]; + } + return createPath(segments, true, arguments); + }, + + RoundRectangle: '#Rectangle', + + Ellipse: function() { + var ellipse = Shape._readEllipse(arguments); + return createEllipse(ellipse.center, ellipse.radius, arguments); + }, + + Oval: '#Ellipse', + + Arc: function() { + var from = Point.readNamed(arguments, 'from'), + through = Point.readNamed(arguments, 'through'), + to = Point.readNamed(arguments, 'to'), + props = Base.getNamed(arguments), + path = new Path(props && props.insert === false + && Item.NO_INSERT); + path.moveTo(from); + path.arcTo(through, to); + return path.set(props); + }, + + RegularPolygon: function() { + var center = Point.readNamed(arguments, 'center'), + sides = Base.readNamed(arguments, 'sides'), + radius = Base.readNamed(arguments, 'radius'), + step = 360 / sides, + three = !(sides % 3), + vector = new Point(0, three ? -radius : radius), + offset = three ? -1 : 0.5, + segments = new Array(sides); + for (var i = 0; i < sides; i++) + segments[i] = new Segment(center.add( + vector.rotate((i + offset) * step))); + return createPath(segments, true, arguments); + }, + + Star: function() { + var center = Point.readNamed(arguments, 'center'), + points = Base.readNamed(arguments, 'points') * 2, + radius1 = Base.readNamed(arguments, 'radius1'), + radius2 = Base.readNamed(arguments, 'radius2'), + step = 360 / points, + vector = new Point(0, -1), + segments = new Array(points); + for (var i = 0; i < points; i++) + segments[i] = new Segment(center.add(vector.rotate(step * i) + .multiply(i % 2 ? radius2 : radius1))); + return createPath(segments, true, arguments); + } + }; +}}); + +var CompoundPath = PathItem.extend({ + _class: 'CompoundPath', + _serializeFields: { + children: [] + }, + + initialize: function CompoundPath(arg) { + this._children = []; + this._namedChildren = {}; + if (!this._initialize(arg)) { + if (typeof arg === 'string') { + this.setPathData(arg); + } else { + this.addChildren(Array.isArray(arg) ? arg : arguments); + } + } + }, + + insertChildren: function insertChildren(index, items, _preserve) { + items = insertChildren.base.call(this, index, items, _preserve, Path); + for (var i = 0, l = !_preserve && items && items.length; i < l; i++) { + var item = items[i]; + if (item._clockwise === undefined) + item.setClockwise(item._index === 0); + } + return items; + }, + + reverse: function() { + var children = this._children; + for (var i = 0, l = children.length; i < l; i++) + children[i].reverse(); + }, + + smooth: function() { + for (var i = 0, l = this._children.length; i < l; i++) + this._children[i].smooth(); + }, + + isClockwise: function() { + var child = this.getFirstChild(); + return child && child.isClockwise(); + }, + + setClockwise: function(clockwise) { + if (this.isClockwise() !== !!clockwise) + this.reverse(); + }, + + getFirstSegment: function() { + var first = this.getFirstChild(); + return first && first.getFirstSegment(); + }, + + getLastSegment: function() { + var last = this.getLastChild(); + return last && last.getLastSegment(); + }, + + getCurves: function() { + var children = this._children, + curves = []; + for (var i = 0, l = children.length; i < l; i++) + curves.push.apply(curves, children[i].getCurves()); + return curves; + }, + + getFirstCurve: function() { + var first = this.getFirstChild(); + return first && first.getFirstCurve(); + }, + + getLastCurve: function() { + var last = this.getLastChild(); + return last && last.getFirstCurve(); + }, + + getArea: function() { + var children = this._children, + area = 0; + for (var i = 0, l = children.length; i < l; i++) + area += children[i].getArea(); + return area; + } +}, { + beans: true, + + getPathData: function(_precision) { + var children = this._children, + paths = []; + for (var i = 0, l = children.length; i < l; i++) + paths.push(children[i].getPathData(_precision)); + return paths.join(' '); + } +}, { + _getChildHitTestOptions: function(options) { + return options.type === 'path' + ? options + : new Base(options, { fill: false }); + }, + + _draw: function(ctx, param) { + var children = this._children; + if (children.length === 0) + return; + + if (this._currentPath) { + ctx.currentPath = this._currentPath; + } else { + param = param.extend({ dontStart: true, dontFinish: true }); + ctx.beginPath(); + for (var i = 0, l = children.length; i < l; i++) + children[i].draw(ctx, param); + this._currentPath = ctx.currentPath; + } + + if (!param.clip) { + this._setStyles(ctx); + var style = this._style; + if (style.hasFill()) { + ctx.fill(style.getWindingRule()); + ctx.shadowColor = 'rgba(0,0,0,0)'; + } + if (style.hasStroke()) + ctx.stroke(); + } + }, + + _drawSelected: function(ctx, matrix) { + var children = this._children; + for (var i = 0, l = children.length; i < l; i++) { + var child = children[i], + mx = child._matrix; + child._drawSelected(ctx, mx.isIdentity() ? matrix + : matrix.clone().concatenate(child._matrix)); + } + } +}, new function() { + function getCurrentPath(that, check) { + var children = that._children; + if (check && children.length === 0) + throw new Error('Use a moveTo() command first'); + return children[children.length - 1]; + } + + var fields = { + moveTo: function() { + var current = getCurrentPath(this), + path = current && current.isEmpty() ? current : new Path(); + if (path !== current) + this.addChild(path); + path.moveTo.apply(path, arguments); + }, + + moveBy: function() { + var current = getCurrentPath(this, true), + last = current && current.getLastSegment(), + point = Point.read(arguments); + this.moveTo(last ? point.add(last._point) : point); + }, + + closePath: function(join) { + getCurrentPath(this, true).closePath(join); + } + }; + + Base.each(['lineTo', 'cubicCurveTo', 'quadraticCurveTo', 'curveTo', 'arcTo', + 'lineBy', 'cubicCurveBy', 'quadraticCurveBy', 'curveBy', 'arcBy'], + function(key) { + fields[key] = function() { + var path = getCurrentPath(this, true); + path[key].apply(path, arguments); + }; + } + ); + + return fields; +}); + +PathItem.inject(new function() { + function computeBoolean(path1, path2, operator, subtract) { + function preparePath(path) { + return path.clone(false).reduce().reorient().transform(null, true); + } + + var _path1 = preparePath(path1), + _path2 = path2 && path1 !== path2 && preparePath(path2); + if (!_path1.isClockwise()) + _path1.reverse(); + if (_path2 && !(subtract ^ _path2.isClockwise())) + _path2.reverse(); + splitPath(_path1.getIntersections(_path2, true)); + + var chain = [], + windings = [], + lengths = [], + segments = [], + monoCurves = []; + + function collect(paths) { + for (var i = 0, l = paths.length; i < l; i++) { + var path = paths[i]; + segments.push.apply(segments, path._segments); + monoCurves.push.apply(monoCurves, path._getMonoCurves()); + } + } + + collect(_path1._children || [_path1]); + if (_path2) + collect(_path2._children || [_path2]); + segments.sort(function(a, b) { + var _a = a._intersection, + _b = b._intersection; + return !_a && !_b || _a && _b ? 0 : _a ? -1 : 1; + }); + for (var i = 0, l = segments.length; i < l; i++) { + var segment = segments[i]; + if (segment._winding != null) + continue; + chain.length = windings.length = lengths.length = 0; + var totalLength = 0, + startSeg = segment; + do { + chain.push(segment); + lengths.push(totalLength += segment.getCurve().getLength()); + segment = segment.getNext(); + } while (segment && !segment._intersection && segment !== startSeg); + for (var j = 0; j < 3; j++) { + var length = totalLength * Math.random(), + amount = lengths.length, + k = 0; + do { + if (lengths[k] >= length) { + if (k > 0) + length -= lengths[k - 1]; + break; + } + } while (++k < amount); + var curve = chain[k].getCurve(), + point = curve.getPointAt(length), + hor = curve.isHorizontal(), + path = curve._path; + if (path._parent instanceof CompoundPath) + path = path._parent; + windings[j] = subtract && _path2 + && (path === _path1 && _path2._getWinding(point, hor) + || path === _path2 && !_path1._getWinding(point, hor)) + ? 0 + : getWinding(point, monoCurves, hor); + } + windings.sort(); + var winding = windings[1]; + for (var j = chain.length - 1; j >= 0; j--) + chain[j]._winding = winding; + } + var result = new CompoundPath(); + result.addChildren(tracePaths(segments, operator), true); + _path1.remove(); + if (_path2) + _path2.remove(); + return result.reduce(); + } + + function splitPath(intersections) { + var TOLERANCE = 0.00001, + linearSegments; + + function resetLinear() { + for (var i = 0, l = linearSegments.length; i < l; i++) { + var segment = linearSegments[i]; + segment._handleOut.set(0, 0); + segment._handleIn.set(0, 0); + } + } + + for (var i = intersections.length - 1, curve, prevLoc; i >= 0; i--) { + var loc = intersections[i], + t = loc._parameter; + if (prevLoc && prevLoc._curve === loc._curve + && prevLoc._parameter > 0) { + t /= prevLoc._parameter; + } else { + if (linearSegments) + resetLinear(); + curve = loc._curve; + linearSegments = curve.isLinear() && []; + } + var newCurve, + segment; + if (newCurve = curve.divide(t, true, true)) { + segment = newCurve._segment1; + curve = newCurve.getPrevious(); + } else { + segment = t < TOLERANCE + ? curve._segment1 + : t > 1 - TOLERANCE + ? curve._segment2 + : curve.getPartLength(0, t) < curve.getPartLength(t, 1) + ? curve._segment1 + : curve._segment2; + } + segment._intersection = loc.getIntersection(); + loc._segment = segment; + if (linearSegments) + linearSegments.push(segment); + prevLoc = loc; + } + if (linearSegments) + resetLinear(); + } + + function getWinding(point, curves, horizontal, testContains) { + var TOLERANCE = 0.00001, + x = point.x, + y = point.y, + windLeft = 0, + windRight = 0, + roots = [], + abs = Math.abs, + MAX = 1 - TOLERANCE; + if (horizontal) { + var yTop = -Infinity, + yBottom = Infinity, + yBefore = y - TOLERANCE, + yAfter = y + TOLERANCE; + for (var i = 0, l = curves.length; i < l; i++) { + var values = curves[i].values; + if (Curve.solveCubic(values, 0, x, roots, 0, 1) > 0) { + for (var j = roots.length - 1; j >= 0; j--) { + var y0 = Curve.evaluate(values, roots[j], 0).y; + if (y0 < yBefore && y0 > yTop) { + yTop = y0; + } else if (y0 > yAfter && y0 < yBottom) { + yBottom = y0; + } + } + } + } + yTop = (yTop + y) / 2; + yBottom = (yBottom + y) / 2; + if (yTop > -Infinity) + windLeft = getWinding(new Point(x, yTop), curves); + if (yBottom < Infinity) + windRight = getWinding(new Point(x, yBottom), curves); + } else { + var xBefore = x - TOLERANCE, + xAfter = x + TOLERANCE; + for (var i = 0, l = curves.length; i < l; i++) { + var curve = curves[i], + values = curve.values, + winding = curve.winding, + next = curve.next; + if (winding && (winding === 1 + && y >= values[1] && y <= values[7] + || y >= values[7] && y <= values[1]) + && Curve.solveCubic(values, 1, y, roots, 0, + !next.winding && next.values[1] === y ? 1 : MAX) === 1){ + var t = roots[0], + x0 = Curve.evaluate(values, t, 0).x, + slope = Curve.evaluate(values, t, 1).y; + if (abs(slope) < TOLERANCE && !Curve.isLinear(values) + || t < TOLERANCE && slope * Curve.evaluate( + curve.previous.values, t, 1).y < 0) { + if (testContains && x0 >= xBefore && x0 <= xAfter) { + ++windLeft; + ++windRight; + } + } else if (x0 <= xBefore) { + windLeft += winding; + } else if (x0 >= xAfter) { + windRight += winding; + } + } + } + } + return Math.max(abs(windLeft), abs(windRight)); + } + + function tracePaths(segments, operator, selfOp) { + operator = operator || function() { + return true; + }; + var paths = [], + ZERO = 1e-3, + ONE = 1 - 1e-3; + for (var i = 0, seg, startSeg, l = segments.length; i < l; i++) { + seg = startSeg = segments[i]; + if (seg._visited || !operator(seg._winding)) + continue; + var path = new Path(Item.NO_INSERT), + inter = seg._intersection, + startInterSeg = inter && inter._segment, + added = false, + dir = 1; + do { + var handleIn = dir > 0 ? seg._handleIn : seg._handleOut, + handleOut = dir > 0 ? seg._handleOut : seg._handleIn, + interSeg; + if (added && (!operator(seg._winding) || selfOp) + && (inter = seg._intersection) + && (interSeg = inter._segment) + && interSeg !== startSeg) { + if (selfOp) { + seg._visited = interSeg._visited; + seg = interSeg; + dir = 1; + } else { + var c1 = seg.getCurve(); + if (dir > 0) + c1 = c1.getPrevious(); + var t1 = c1.getTangentAt(dir < 1 ? ZERO : ONE, true), + c4 = interSeg.getCurve(), + c3 = c4.getPrevious(), + t3 = c3.getTangentAt(ONE, true), + t4 = c4.getTangentAt(ZERO, true), + w3 = t1.cross(t3), + w4 = t1.cross(t4); + if (w3 * w4 !== 0) { + var curve = w3 < w4 ? c3 : c4, + nextCurve = operator(curve._segment1._winding) + ? curve + : w3 < w4 ? c4 : c3, + nextSeg = nextCurve._segment1; + dir = nextCurve === c3 ? -1 : 1; + if (nextSeg._visited && seg._path !== nextSeg._path + || !operator(nextSeg._winding)) { + dir = 1; + } else { + seg._visited = interSeg._visited; + seg = interSeg; + if (nextSeg._visited) + dir = 1; + } + } else { + dir = 1; + } + } + handleOut = dir > 0 ? seg._handleOut : seg._handleIn; + } + path.add(new Segment(seg._point, added && handleIn, handleOut)); + added = true; + seg._visited = true; + seg = dir > 0 ? seg.getNext() : seg. getPrevious(); + } while (seg && !seg._visited + && seg !== startSeg && seg !== startInterSeg + && (seg._intersection || operator(seg._winding))); + if (seg && (seg === startSeg || seg === startInterSeg)) { + path.firstSegment.setHandleIn((seg === startInterSeg + ? startInterSeg : seg)._handleIn); + path.setClosed(true); + } else { + path.lastSegment._handleOut.set(0, 0); + } + if (path._segments.length > + (path._closed ? path.isPolygon() ? 2 : 0 : 1)) + paths.push(path); + } + return paths; + } + + return { + _getWinding: function(point, horizontal, testContains) { + return getWinding(point, this._getMonoCurves(), + horizontal, testContains); + }, + + unite: function(path) { + return computeBoolean(this, path, function(w) { + return w === 1 || w === 0; + }, false); + }, + + intersect: function(path) { + return computeBoolean(this, path, function(w) { + return w === 2; + }, false); + }, + + subtract: function(path) { + return computeBoolean(this, path, function(w) { + return w === 1; + }, true); + }, + + exclude: function(path) { + return new Group([this.subtract(path), path.subtract(this)]); + }, + + divide: function(path) { + return new Group([this.subtract(path), this.intersect(path)]); + } + }; +}); + +Path.inject({ + _getMonoCurves: function() { + var monoCurves = this._monoCurves, + prevCurve; + + function insertCurve(v) { + var y0 = v[1], + y1 = v[7], + curve = { + values: v, + winding: y0 === y1 + ? 0 + : y0 > y1 + ? -1 + : 1, + previous: prevCurve, + next: null + }; + if (prevCurve) + prevCurve.next = curve; + monoCurves.push(curve); + prevCurve = curve; + } + + function handleCurve(v) { + if (Curve.getLength(v) === 0) + return; + var y0 = v[1], + y1 = v[3], + y2 = v[5], + y3 = v[7]; + if (Curve.isLinear(v)) { + insertCurve(v); + } else { + var a = 3 * (y1 - y2) - y0 + y3, + b = 2 * (y0 + y2) - 4 * y1, + c = y1 - y0, + TOLERANCE = 0.00001, + roots = []; + var count = Numerical.solveQuadratic(a, b, c, roots, TOLERANCE, + 1 - TOLERANCE); + if (count === 0) { + insertCurve(v); + } else { + roots.sort(); + var t = roots[0], + parts = Curve.subdivide(v, t); + insertCurve(parts[0]); + if (count > 1) { + t = (roots[1] - t) / (1 - t); + parts = Curve.subdivide(parts[1], t); + insertCurve(parts[0]); + } + insertCurve(parts[1]); + } + } + } + + if (!monoCurves) { + monoCurves = this._monoCurves = []; + var curves = this.getCurves(), + segments = this._segments; + for (var i = 0, l = curves.length; i < l; i++) + handleCurve(curves[i].getValues()); + if (!this._closed && segments.length > 1) { + var p1 = segments[segments.length - 1]._point, + p2 = segments[0]._point, + p1x = p1._x, p1y = p1._y, + p2x = p2._x, p2y = p2._y; + handleCurve([p1x, p1y, p1x, p1y, p2x, p2y, p2x, p2y]); + } + if (monoCurves.length > 0) { + var first = monoCurves[0], + last = monoCurves[monoCurves.length - 1]; + first.previous = last; + last.next = first; + } + } + return monoCurves; + }, + + getInteriorPoint: function() { + var bounds = this.getBounds(), + point = bounds.getCenter(true); + if (!this.contains(point)) { + var curves = this._getMonoCurves(), + roots = [], + y = point.y, + xIntercepts = []; + for (var i = 0, l = curves.length; i < l; i++) { + var values = curves[i].values; + if ((curves[i].winding === 1 + && y >= values[1] && y <= values[7] + || y >= values[7] && y <= values[1]) + && Curve.solveCubic(values, 1, y, roots, 0, 1) > 0) { + for (var j = roots.length - 1; j >= 0; j--) + xIntercepts.push(Curve.evaluate(values, roots[j], 0).x); + } + if (xIntercepts.length > 1) + break; + } + point.x = (xIntercepts[0] + xIntercepts[1]) / 2; + } + return point; + }, + + reorient: function() { + this.setClockwise(true); + return this; + } +}); + +CompoundPath.inject({ + _getMonoCurves: function() { + var children = this._children, + monoCurves = []; + for (var i = 0, l = children.length; i < l; i++) + monoCurves.push.apply(monoCurves, children[i]._getMonoCurves()); + return monoCurves; + }, + + reorient: function() { + var children = this.removeChildren().sort(function(a, b) { + return b.getBounds().getArea() - a.getBounds().getArea(); + }); + this.addChildren(children); + var clockwise = children[0].isClockwise(); + for (var i = 1, l = children.length; i < l; i++) { + var point = children[i].getInteriorPoint(), + counters = 0; + for (var j = i - 1; j >= 0; j--) { + if (children[j].contains(point)) + counters++; + } + children[i].setClockwise(counters % 2 === 0 && clockwise); + } + return this; + } +}); + +var PathFlattener = Base.extend({ + initialize: function(path) { + this.curves = []; + this.parts = []; + this.length = 0; + this.index = 0; + + var segments = path._segments, + segment1 = segments[0], + segment2, + that = this; + + function addCurve(segment1, segment2) { + var curve = Curve.getValues(segment1, segment2); + that.curves.push(curve); + that._computeParts(curve, segment1._index, 0, 1); + } + + for (var i = 1, l = segments.length; i < l; i++) { + segment2 = segments[i]; + addCurve(segment1, segment2); + segment1 = segment2; + } + if (path._closed) + addCurve(segment2, segments[0]); + }, + + _computeParts: function(curve, index, minT, maxT) { + if ((maxT - minT) > 1 / 32 && !Curve.isFlatEnough(curve, 0.25)) { + var curves = Curve.subdivide(curve); + var halfT = (minT + maxT) / 2; + this._computeParts(curves[0], index, minT, halfT); + this._computeParts(curves[1], index, halfT, maxT); + } else { + var x = curve[6] - curve[0], + y = curve[7] - curve[1], + dist = Math.sqrt(x * x + y * y); + if (dist > 0.00001) { + this.length += dist; + this.parts.push({ + offset: this.length, + value: maxT, + index: index + }); + } + } + }, + + getParameterAt: function(offset) { + var i, j = this.index; + for (;;) { + i = j; + if (j == 0 || this.parts[--j].offset < offset) + break; + } + for (var l = this.parts.length; i < l; i++) { + var part = this.parts[i]; + if (part.offset >= offset) { + this.index = i; + var prev = this.parts[i - 1]; + var prevVal = prev && prev.index == part.index ? prev.value : 0, + prevLen = prev ? prev.offset : 0; + return { + value: prevVal + (part.value - prevVal) + * (offset - prevLen) / (part.offset - prevLen), + index: part.index + }; + } + } + var part = this.parts[this.parts.length - 1]; + return { + value: 1, + index: part.index + }; + }, + + evaluate: function(offset, type) { + var param = this.getParameterAt(offset); + return Curve.evaluate(this.curves[param.index], param.value, type); + }, + + drawPart: function(ctx, from, to) { + from = this.getParameterAt(from); + to = this.getParameterAt(to); + for (var i = from.index; i <= to.index; i++) { + var curve = Curve.getPart(this.curves[i], + i == from.index ? from.value : 0, + i == to.index ? to.value : 1); + if (i == from.index) + ctx.moveTo(curve[0], curve[1]); + ctx.bezierCurveTo.apply(ctx, curve.slice(2)); + } + } +}); + +var PathFitter = Base.extend({ + initialize: function(path, error) { + this.points = []; + var segments = path._segments, + prev; + for (var i = 0, l = segments.length; i < l; i++) { + var point = segments[i].point.clone(); + if (!prev || !prev.equals(point)) { + this.points.push(point); + prev = point; + } + } + this.error = error; + }, + + fit: function() { + var points = this.points, + length = points.length; + this.segments = length > 0 ? [new Segment(points[0])] : []; + if (length > 1) + this.fitCubic(0, length - 1, + points[1].subtract(points[0]).normalize(), + points[length - 2].subtract(points[length - 1]).normalize()); + return this.segments; + }, + + fitCubic: function(first, last, tan1, tan2) { + if (last - first == 1) { + var pt1 = this.points[first], + pt2 = this.points[last], + dist = pt1.getDistance(pt2) / 3; + this.addCurve([pt1, pt1.add(tan1.normalize(dist)), + pt2.add(tan2.normalize(dist)), pt2]); + return; + } + var uPrime = this.chordLengthParameterize(first, last), + maxError = Math.max(this.error, this.error * this.error), + split; + for (var i = 0; i <= 4; i++) { + var curve = this.generateBezier(first, last, uPrime, tan1, tan2); + var max = this.findMaxError(first, last, curve, uPrime); + if (max.error < this.error) { + this.addCurve(curve); + return; + } + split = max.index; + if (max.error >= maxError) + break; + this.reparameterize(first, last, uPrime, curve); + maxError = max.error; + } + var V1 = this.points[split - 1].subtract(this.points[split]), + V2 = this.points[split].subtract(this.points[split + 1]), + tanCenter = V1.add(V2).divide(2).normalize(); + this.fitCubic(first, split, tan1, tanCenter); + this.fitCubic(split, last, tanCenter.negate(), tan2); + }, + + addCurve: function(curve) { + var prev = this.segments[this.segments.length - 1]; + prev.setHandleOut(curve[1].subtract(curve[0])); + this.segments.push( + new Segment(curve[3], curve[2].subtract(curve[3]))); + }, + + generateBezier: function(first, last, uPrime, tan1, tan2) { + var epsilon = 1e-11, + pt1 = this.points[first], + pt2 = this.points[last], + C = [[0, 0], [0, 0]], + X = [0, 0]; + + for (var i = 0, l = last - first + 1; i < l; i++) { + var u = uPrime[i], + t = 1 - u, + b = 3 * u * t, + b0 = t * t * t, + b1 = b * t, + b2 = b * u, + b3 = u * u * u, + a1 = tan1.normalize(b1), + a2 = tan2.normalize(b2), + tmp = this.points[first + i] + .subtract(pt1.multiply(b0 + b1)) + .subtract(pt2.multiply(b2 + b3)); + C[0][0] += a1.dot(a1); + C[0][1] += a1.dot(a2); + C[1][0] = C[0][1]; + C[1][1] += a2.dot(a2); + X[0] += a1.dot(tmp); + X[1] += a2.dot(tmp); + } + + var detC0C1 = C[0][0] * C[1][1] - C[1][0] * C[0][1], + alpha1, alpha2; + if (Math.abs(detC0C1) > epsilon) { + var detC0X = C[0][0] * X[1] - C[1][0] * X[0], + detXC1 = X[0] * C[1][1] - X[1] * C[0][1]; + alpha1 = detXC1 / detC0C1; + alpha2 = detC0X / detC0C1; + } else { + var c0 = C[0][0] + C[0][1], + c1 = C[1][0] + C[1][1]; + if (Math.abs(c0) > epsilon) { + alpha1 = alpha2 = X[0] / c0; + } else if (Math.abs(c1) > epsilon) { + alpha1 = alpha2 = X[1] / c1; + } else { + alpha1 = alpha2 = 0; + } + } + + var segLength = pt2.getDistance(pt1); + epsilon *= segLength; + if (alpha1 < epsilon || alpha2 < epsilon) { + alpha1 = alpha2 = segLength / 3; + } + + return [pt1, pt1.add(tan1.normalize(alpha1)), + pt2.add(tan2.normalize(alpha2)), pt2]; + }, + + reparameterize: function(first, last, u, curve) { + for (var i = first; i <= last; i++) { + u[i - first] = this.findRoot(curve, this.points[i], u[i - first]); + } + }, + + findRoot: function(curve, point, u) { + var curve1 = [], + curve2 = []; + for (var i = 0; i <= 2; i++) { + curve1[i] = curve[i + 1].subtract(curve[i]).multiply(3); + } + for (var i = 0; i <= 1; i++) { + curve2[i] = curve1[i + 1].subtract(curve1[i]).multiply(2); + } + var pt = this.evaluate(3, curve, u), + pt1 = this.evaluate(2, curve1, u), + pt2 = this.evaluate(1, curve2, u), + diff = pt.subtract(point), + df = pt1.dot(pt1) + diff.dot(pt2); + if (Math.abs(df) < 0.00001) + return u; + return u - diff.dot(pt1) / df; + }, + + evaluate: function(degree, curve, t) { + var tmp = curve.slice(); + for (var i = 1; i <= degree; i++) { + for (var j = 0; j <= degree - i; j++) { + tmp[j] = tmp[j].multiply(1 - t).add(tmp[j + 1].multiply(t)); + } + } + return tmp[0]; + }, + + chordLengthParameterize: function(first, last) { + var u = [0]; + for (var i = first + 1; i <= last; i++) { + u[i - first] = u[i - first - 1] + + this.points[i].getDistance(this.points[i - 1]); + } + for (var i = 1, m = last - first; i <= m; i++) { + u[i] /= u[m]; + } + return u; + }, + + findMaxError: function(first, last, curve, u) { + var index = Math.floor((last - first + 1) / 2), + maxDist = 0; + for (var i = first + 1; i < last; i++) { + var P = this.evaluate(3, curve, u[i - first]); + var v = P.subtract(this.points[i]); + var dist = v.x * v.x + v.y * v.y; + if (dist >= maxDist) { + maxDist = dist; + index = i; + } + } + return { + error: maxDist, + index: index + }; + } +}); + +var TextItem = Item.extend({ + _class: 'TextItem', + _boundsSelected: true, + _applyMatrix: false, + _canApplyMatrix: false, + _serializeFields: { + content: null + }, + _boundsGetter: 'getBounds', + + initialize: function TextItem(arg) { + this._content = ''; + this._lines = []; + var hasProps = arg && Base.isPlainObject(arg) + && arg.x === undefined && arg.y === undefined; + this._initialize(hasProps && arg, !hasProps && Point.read(arguments)); + }, + + _equals: function(item) { + return this._content === item._content; + }, + + _clone: function _clone(copy) { + copy.setContent(this._content); + return _clone.base.call(this, copy); + }, + + getContent: function() { + return this._content; + }, + + setContent: function(content) { + this._content = '' + content; + this._lines = this._content.split(/\r\n|\n|\r/mg); + this._changed(265); + }, + + isEmpty: function() { + return !this._content; + }, + + getCharacterStyle: '#getStyle', + setCharacterStyle: '#setStyle', + + getParagraphStyle: '#getStyle', + setParagraphStyle: '#setStyle' +}); + +var PointText = TextItem.extend({ + _class: 'PointText', + + initialize: function PointText() { + TextItem.apply(this, arguments); + }, + + clone: function(insert) { + return this._clone(new PointText(Item.NO_INSERT), insert); + }, + + getPoint: function() { + var point = this._matrix.getTranslation(); + return new LinkedPoint(point.x, point.y, this, 'setPoint'); + }, + + setPoint: function() { + var point = Point.read(arguments); + this.translate(point.subtract(this._matrix.getTranslation())); + }, + + _draw: function(ctx) { + if (!this._content) + return; + this._setStyles(ctx); + var style = this._style, + lines = this._lines, + leading = style.getLeading(), + shadowColor = ctx.shadowColor; + ctx.font = style.getFontStyle(); + ctx.textAlign = style.getJustification(); + for (var i = 0, l = lines.length; i < l; i++) { + ctx.shadowColor = shadowColor; + var line = lines[i]; + if (style.hasFill()) { + ctx.fillText(line, 0, 0); + ctx.shadowColor = 'rgba(0,0,0,0)'; + } + if (style.hasStroke()) + ctx.strokeText(line, 0, 0); + ctx.translate(0, leading); + } + }, + + _getBounds: function(getter, matrix) { + var style = this._style, + lines = this._lines, + numLines = lines.length, + justification = style.getJustification(), + leading = style.getLeading(), + width = this.getView().getTextWidth(style.getFontStyle(), lines), + x = 0; + if (justification !== 'left') + x -= width / (justification === 'center' ? 2: 1); + var bounds = new Rectangle(x, + numLines ? - 0.75 * leading : 0, + width, numLines * leading); + return matrix ? matrix._transformBounds(bounds, bounds) : bounds; + } +}); + +var Color = Base.extend(new function() { + + var types = { + gray: ['gray'], + rgb: ['red', 'green', 'blue'], + hsb: ['hue', 'saturation', 'brightness'], + hsl: ['hue', 'saturation', 'lightness'], + gradient: ['gradient', 'origin', 'destination', 'highlight'] + }; + + var componentParsers = {}, + colorCache = {}, + colorCtx; + + function fromCSS(string) { + var match = string.match(/^#(\w{1,2})(\w{1,2})(\w{1,2})$/), + components; + if (match) { + components = [0, 0, 0]; + for (var i = 0; i < 3; i++) { + var value = match[i + 1]; + components[i] = parseInt(value.length == 1 + ? value + value : value, 16) / 255; + } + } else if (match = string.match(/^rgba?\((.*)\)$/)) { + components = match[1].split(','); + for (var i = 0, l = components.length; i < l; i++) { + var value = +components[i]; + components[i] = i < 3 ? value / 255 : value; + } + } else { + var cached = colorCache[string]; + if (!cached) { + if (!colorCtx) { + colorCtx = CanvasProvider.getContext(1, 1); + colorCtx.globalCompositeOperation = 'copy'; + } + colorCtx.fillStyle = 'rgba(0,0,0,0)'; + colorCtx.fillStyle = string; + colorCtx.fillRect(0, 0, 1, 1); + var data = colorCtx.getImageData(0, 0, 1, 1).data; + cached = colorCache[string] = [ + data[0] / 255, + data[1] / 255, + data[2] / 255 + ]; + } + components = cached.slice(); + } + return components; + } + + var hsbIndices = [ + [0, 3, 1], + [2, 0, 1], + [1, 0, 3], + [1, 2, 0], + [3, 1, 0], + [0, 1, 2] + ]; + + var converters = { + 'rgb-hsb': function(r, g, b) { + var max = Math.max(r, g, b), + min = Math.min(r, g, b), + delta = max - min, + h = delta === 0 ? 0 + : ( max == r ? (g - b) / delta + (g < b ? 6 : 0) + : max == g ? (b - r) / delta + 2 + : (r - g) / delta + 4) * 60; + return [h, max === 0 ? 0 : delta / max, max]; + }, + + 'hsb-rgb': function(h, s, b) { + h = (((h / 60) % 6) + 6) % 6; + var i = Math.floor(h), + f = h - i, + i = hsbIndices[i], + v = [ + b, + b * (1 - s), + b * (1 - s * f), + b * (1 - s * (1 - f)) + ]; + return [v[i[0]], v[i[1]], v[i[2]]]; + }, + + 'rgb-hsl': function(r, g, b) { + var max = Math.max(r, g, b), + min = Math.min(r, g, b), + delta = max - min, + achromatic = delta === 0, + h = achromatic ? 0 + : ( max == r ? (g - b) / delta + (g < b ? 6 : 0) + : max == g ? (b - r) / delta + 2 + : (r - g) / delta + 4) * 60, + l = (max + min) / 2, + s = achromatic ? 0 : l < 0.5 + ? delta / (max + min) + : delta / (2 - max - min); + return [h, s, l]; + }, + + 'hsl-rgb': function(h, s, l) { + h = (((h / 360) % 1) + 1) % 1; + if (s === 0) + return [l, l, l]; + var t3s = [ h + 1 / 3, h, h - 1 / 3 ], + t2 = l < 0.5 ? l * (1 + s) : l + s - l * s, + t1 = 2 * l - t2, + c = []; + for (var i = 0; i < 3; i++) { + var t3 = t3s[i]; + if (t3 < 0) t3 += 1; + if (t3 > 1) t3 -= 1; + c[i] = 6 * t3 < 1 + ? t1 + (t2 - t1) * 6 * t3 + : 2 * t3 < 1 + ? t2 + : 3 * t3 < 2 + ? t1 + (t2 - t1) * ((2 / 3) - t3) * 6 + : t1; + } + return c; + }, + + 'rgb-gray': function(r, g, b) { + return [r * 0.2989 + g * 0.587 + b * 0.114]; + }, + + 'gray-rgb': function(g) { + return [g, g, g]; + }, + + 'gray-hsb': function(g) { + return [0, 0, g]; + }, + + 'gray-hsl': function(g) { + return [0, 0, g]; + }, + + 'gradient-rgb': function() { + return []; + }, + + 'rgb-gradient': function() { + return []; + } + + }; + + return Base.each(types, function(properties, type) { + componentParsers[type] = []; + Base.each(properties, function(name, index) { + var part = Base.capitalize(name), + hasOverlap = /^(hue|saturation)$/.test(name), + parser = componentParsers[type][index] = name === 'gradient' + ? function(value) { + var current = this._components[0]; + value = Gradient.read(Array.isArray(value) ? value + : arguments, 0, { readNull: true }); + if (current !== value) { + if (current) + current._removeOwner(this); + if (value) + value._addOwner(this); + } + return value; + } + : type === 'gradient' + ? function() { + return Point.read(arguments, 0, { + readNull: name === 'highlight', + clone: true + }); + } + : function(value) { + return value == null || isNaN(value) ? 0 : value; + }; + + this['get' + part] = function() { + return this._type === type + || hasOverlap && /^hs[bl]$/.test(this._type) + ? this._components[index] + : this._convert(type)[index]; + }; + + this['set' + part] = function(value) { + if (this._type !== type + && !(hasOverlap && /^hs[bl]$/.test(this._type))) { + this._components = this._convert(type); + this._properties = types[type]; + this._type = type; + } + value = parser.call(this, value); + if (value != null) { + this._components[index] = value; + this._changed(); + } + }; + }, this); + }, { + _class: 'Color', + _readIndex: true, + + initialize: function Color(arg) { + var slice = Array.prototype.slice, + args = arguments, + read = 0, + type, + components, + alpha, + values; + if (Array.isArray(arg)) { + args = arg; + arg = args[0]; + } + var argType = arg != null && typeof arg; + if (argType === 'string' && arg in types) { + type = arg; + arg = args[1]; + if (Array.isArray(arg)) { + components = arg; + alpha = args[2]; + } else { + if (this.__read) + read = 1; + args = slice.call(args, 1); + argType = typeof arg; + } + } + if (!components) { + values = argType === 'number' + ? args + : argType === 'object' && arg.length != null + ? arg + : null; + if (values) { + if (!type) + type = values.length >= 3 + ? 'rgb' + : 'gray'; + var length = types[type].length; + alpha = values[length]; + if (this.__read) + read += values === arguments + ? length + (alpha != null ? 1 : 0) + : 1; + if (values.length > length) + values = slice.call(values, 0, length); + } else if (argType === 'string') { + type = 'rgb'; + components = fromCSS(arg); + if (components.length === 4) { + alpha = components[3]; + components.length--; + } + } else if (argType === 'object') { + if (arg.constructor === Color) { + type = arg._type; + components = arg._components.slice(); + alpha = arg._alpha; + if (type === 'gradient') { + for (var i = 1, l = components.length; i < l; i++) { + var point = components[i]; + if (point) + components[i] = point.clone(); + } + } + } else if (arg.constructor === Gradient) { + type = 'gradient'; + values = args; + } else { + type = 'hue' in arg + ? 'lightness' in arg + ? 'hsl' + : 'hsb' + : 'gradient' in arg || 'stops' in arg + || 'radial' in arg + ? 'gradient' + : 'gray' in arg + ? 'gray' + : 'rgb'; + var properties = types[type]; + parsers = componentParsers[type]; + this._components = components = []; + for (var i = 0, l = properties.length; i < l; i++) { + var value = arg[properties[i]]; + if (value == null && i === 0 && type === 'gradient' + && 'stops' in arg) { + value = { + stops: arg.stops, + radial: arg.radial + }; + } + value = parsers[i].call(this, value); + if (value != null) + components[i] = value; + } + alpha = arg.alpha; + } + } + if (this.__read && type) + read = 1; + } + this._type = type || 'rgb'; + if (type === 'gradient') + this._id = Color._id = (Color._id || 0) + 1; + if (!components) { + this._components = components = []; + var parsers = componentParsers[this._type]; + for (var i = 0, l = parsers.length; i < l; i++) { + var value = parsers[i].call(this, values && values[i]); + if (value != null) + components[i] = value; + } + } + this._components = components; + this._properties = types[this._type]; + this._alpha = alpha; + if (this.__read) + this.__read = read; + }, + + _serialize: function(options, dictionary) { + var components = this.getComponents(); + return Base.serialize( + /^(gray|rgb)$/.test(this._type) + ? components + : [this._type].concat(components), + options, true, dictionary); + }, + + _changed: function() { + this._canvasStyle = null; + if (this._owner) + this._owner._changed(65); + }, + + _convert: function(type) { + var converter; + return this._type === type + ? this._components.slice() + : (converter = converters[this._type + '-' + type]) + ? converter.apply(this, this._components) + : converters['rgb-' + type].apply(this, + converters[this._type + '-rgb'].apply(this, + this._components)); + }, + + convert: function(type) { + return new Color(type, this._convert(type), this._alpha); + }, + + getType: function() { + return this._type; + }, + + setType: function(type) { + this._components = this._convert(type); + this._properties = types[type]; + this._type = type; + }, + + getComponents: function() { + var components = this._components.slice(); + if (this._alpha != null) + components.push(this._alpha); + return components; + }, + + getAlpha: function() { + return this._alpha != null ? this._alpha : 1; + }, + + setAlpha: function(alpha) { + this._alpha = alpha == null ? null : Math.min(Math.max(alpha, 0), 1); + this._changed(); + }, + + hasAlpha: function() { + return this._alpha != null; + }, + + equals: function(color) { + var col = Base.isPlainValue(color) + ? Color.read(arguments) + : color; + return col === this || col && this._class === col._class + && this._type === col._type + && this._alpha === col._alpha + && Base.equals(this._components, col._components) + || false; + }, + + toString: function() { + var properties = this._properties, + parts = [], + isGradient = this._type === 'gradient', + f = Formatter.instance; + for (var i = 0, l = properties.length; i < l; i++) { + var value = this._components[i]; + if (value != null) + parts.push(properties[i] + ': ' + + (isGradient ? value : f.number(value))); + } + if (this._alpha != null) + parts.push('alpha: ' + f.number(this._alpha)); + return '{ ' + parts.join(', ') + ' }'; + }, + + toCSS: function(hex) { + var components = this._convert('rgb'), + alpha = hex || this._alpha == null ? 1 : this._alpha; + function convert(val) { + return Math.round((val < 0 ? 0 : val > 1 ? 1 : val) * 255); + } + components = [ + convert(components[0]), + convert(components[1]), + convert(components[2]) + ]; + if (alpha < 1) + components.push(alpha < 0 ? 0 : alpha); + return hex + ? '#' + ((1 << 24) + (components[0] << 16) + + (components[1] << 8) + + components[2]).toString(16).slice(1) + : (components.length == 4 ? 'rgba(' : 'rgb(') + + components.join(',') + ')'; + }, + + toCanvasStyle: function(ctx) { + if (this._canvasStyle) + return this._canvasStyle; + if (this._type !== 'gradient') + return this._canvasStyle = this.toCSS(); + var components = this._components, + gradient = components[0], + stops = gradient._stops, + origin = components[1], + destination = components[2], + canvasGradient; + if (gradient._radial) { + var radius = destination.getDistance(origin), + highlight = components[3]; + if (highlight) { + var vector = highlight.subtract(origin); + if (vector.getLength() > radius) + highlight = origin.add(vector.normalize(radius - 0.1)); + } + var start = highlight || origin; + canvasGradient = ctx.createRadialGradient(start.x, start.y, + 0, origin.x, origin.y, radius); + } else { + canvasGradient = ctx.createLinearGradient(origin.x, origin.y, + destination.x, destination.y); + } + for (var i = 0, l = stops.length; i < l; i++) { + var stop = stops[i]; + canvasGradient.addColorStop(stop._rampPoint, + stop._color.toCanvasStyle()); + } + return this._canvasStyle = canvasGradient; + }, + + transform: function(matrix) { + if (this._type === 'gradient') { + var components = this._components; + for (var i = 1, l = components.length; i < l; i++) { + var point = components[i]; + matrix._transformPoint(point, point, true); + } + this._changed(); + } + }, + + statics: { + _types: types, + + random: function() { + var random = Math.random; + return new Color(random(), random(), random()); + } + } + }); +}, new function() { + var operators = { + add: function(a, b) { + return a + b; + }, + + subtract: function(a, b) { + return a - b; + }, + + multiply: function(a, b) { + return a * b; + }, + + divide: function(a, b) { + return a / b; + } + }; + + return Base.each(operators, function(operator, name) { + this[name] = function(color) { + color = Color.read(arguments); + var type = this._type, + components1 = this._components, + components2 = color._convert(type); + for (var i = 0, l = components1.length; i < l; i++) + components2[i] = operator(components1[i], components2[i]); + return new Color(type, components2, + this._alpha != null + ? operator(this._alpha, color.getAlpha()) + : null); + }; + }, { + }); +}); + +Base.each(Color._types, function(properties, type) { + var ctor = this[Base.capitalize(type) + 'Color'] = function(arg) { + var argType = arg != null && typeof arg, + components = argType === 'object' && arg.length != null + ? arg + : argType === 'string' + ? null + : arguments; + return components + ? new Color(type, components) + : new Color(arg); + }; + if (type.length == 3) { + var acronym = type.toUpperCase(); + Color[acronym] = this[acronym + 'Color'] = ctor; + } +}, Base.exports); + +var Gradient = Base.extend({ + _class: 'Gradient', + + initialize: function Gradient(stops, radial) { + this._id = Gradient._id = (Gradient._id || 0) + 1; + if (stops && this._set(stops)) + stops = radial = null; + if (!this._stops) + this.setStops(stops || ['white', 'black']); + if (this._radial == null) + this.setRadial(typeof radial === 'string' && radial === 'radial' + || radial || false); + }, + + _serialize: function(options, dictionary) { + return dictionary.add(this, function() { + return Base.serialize([this._stops, this._radial], + options, true, dictionary); + }); + }, + + _changed: function() { + for (var i = 0, l = this._owners && this._owners.length; i < l; i++) + this._owners[i]._changed(); + }, + + _addOwner: function(color) { + if (!this._owners) + this._owners = []; + this._owners.push(color); + }, + + _removeOwner: function(color) { + var index = this._owners ? this._owners.indexOf(color) : -1; + if (index != -1) { + this._owners.splice(index, 1); + if (this._owners.length === 0) + this._owners = undefined; + } + }, + + clone: function() { + var stops = []; + for (var i = 0, l = this._stops.length; i < l; i++) + stops[i] = this._stops[i].clone(); + return new Gradient(stops); + }, + + getStops: function() { + return this._stops; + }, + + setStops: function(stops) { + if (this.stops) { + for (var i = 0, l = this._stops.length; i < l; i++) + this._stops[i]._owner = undefined; + } + if (stops.length < 2) + throw new Error( + 'Gradient stop list needs to contain at least two stops.'); + this._stops = GradientStop.readAll(stops, 0, { clone: true }); + for (var i = 0, l = this._stops.length; i < l; i++) { + var stop = this._stops[i]; + stop._owner = this; + if (stop._defaultRamp) + stop.setRampPoint(i / (l - 1)); + } + this._changed(); + }, + + getRadial: function() { + return this._radial; + }, + + setRadial: function(radial) { + this._radial = radial; + this._changed(); + }, + + equals: function(gradient) { + if (gradient === this) + return true; + if (gradient && this._class === gradient._class + && this._stops.length === gradient._stops.length) { + for (var i = 0, l = this._stops.length; i < l; i++) { + if (!this._stops[i].equals(gradient._stops[i])) + return false; + } + return true; + } + return false; + } +}); + +var GradientStop = Base.extend({ + _class: 'GradientStop', + + initialize: function GradientStop(arg0, arg1) { + if (arg0) { + var color, rampPoint; + if (arg1 === undefined && Array.isArray(arg0)) { + color = arg0[0]; + rampPoint = arg0[1]; + } else if (arg0.color) { + color = arg0.color; + rampPoint = arg0.rampPoint; + } else { + color = arg0; + rampPoint = arg1; + } + this.setColor(color); + this.setRampPoint(rampPoint); + } + }, + + clone: function() { + return new GradientStop(this._color.clone(), this._rampPoint); + }, + + _serialize: function(options, dictionary) { + return Base.serialize([this._color, this._rampPoint], options, true, + dictionary); + }, + + _changed: function() { + if (this._owner) + this._owner._changed(65); + }, + + getRampPoint: function() { + return this._rampPoint; + }, + + setRampPoint: function(rampPoint) { + this._defaultRamp = rampPoint == null; + this._rampPoint = rampPoint || 0; + this._changed(); + }, + + getColor: function() { + return this._color; + }, + + setColor: function(color) { + this._color = Color.read(arguments); + if (this._color === color) + this._color = color.clone(); + this._color._owner = this; + this._changed(); + }, + + equals: function(stop) { + return stop === this || stop && this._class === stop._class + && this._color.equals(stop._color) + && this._rampPoint == stop._rampPoint + || false; + } +}); + +var Style = Base.extend(new function() { + var defaults = { + fillColor: undefined, + strokeColor: undefined, + strokeWidth: 1, + strokeCap: 'butt', + strokeJoin: 'miter', + miterLimit: 10, + dashOffset: 0, + dashArray: [], + windingRule: 'nonzero', + shadowColor: undefined, + shadowBlur: 0, + shadowOffset: new Point(), + selectedColor: undefined, + fontFamily: 'sans-serif', + fontWeight: 'normal', + fontSize: 12, + font: 'sans-serif', + leading: null, + justification: 'left' + }; + + var flags = { + strokeWidth: 97, + strokeCap: 97, + strokeJoin: 97, + miterLimit: 97, + fontFamily: 9, + fontWeight: 9, + fontSize: 9, + font: 9, + leading: 9, + justification: 9 + }; + + var item = {}, + fields = { + _defaults: defaults, + _textDefaults: new Base(defaults, { + fillColor: new Color() + }), + beans: true + }; + + Base.each(defaults, function(value, key) { + var isColor = /Color$/.test(key), + part = Base.capitalize(key), + flag = flags[key], + set = 'set' + part, + get = 'get' + part; + + fields[set] = function(value) { + var owner = this._owner, + children = owner && owner._children; + if (children && children.length > 0 + && !(owner instanceof CompoundPath)) { + for (var i = 0, l = children.length; i < l; i++) + children[i]._style[set](value); + } else { + var old = this._values[key]; + if (old != value) { + if (isColor) { + if (old) + old._owner = undefined; + if (value && value.constructor === Color) { + if (value._owner) + value = value.clone(); + value._owner = owner; + } + } + this._values[key] = value; + if (owner) + owner._changed(flag || 65); + } + } + }; + + fields[get] = function(_dontMerge) { + var owner = this._owner, + children = owner && owner._children, + value; + if (!children || children.length === 0 || _dontMerge + || owner instanceof CompoundPath) { + var value = this._values[key]; + if (value === undefined) { + value = this._defaults[key]; + if (value && value.clone) + value = value.clone(); + this._values[key] = value; + } else if (isColor && !(value && value.constructor === Color)) { + this._values[key] = value = Color.read([value], 0, + { readNull: true, clone: true }); + if (value) + value._owner = owner; + } + return value; + } + for (var i = 0, l = children.length; i < l; i++) { + var childValue = children[i]._style[get](); + if (i === 0) { + value = childValue; + } else if (!Base.equals(value, childValue)) { + return undefined; + } + } + return value; + }; + + item[get] = function() { + return this._style[get](); + }; + + item[set] = function(value) { + this._style[set](value); + }; + }); + + Item.inject(item); + return fields; +}, { + _class: 'Style', + + initialize: function Style(style, _owner, _project) { + this._values = {}; + this._owner = _owner; + this._project = _owner && _owner._project || _project || paper.project; + if (_owner instanceof TextItem) + this._defaults = this._textDefaults; + if (style) + this.set(style); + }, + + set: function(style) { + var isStyle = style instanceof Style, + values = isStyle ? style._values : style; + if (values) { + for (var key in values) { + if (key in this._defaults) { + var value = values[key]; + this[key] = value && isStyle && value.clone + ? value.clone() : value; + } + } + } + }, + + equals: function(style) { + return style === this || style && this._class === style._class + && Base.equals(this._values, style._values) + || false; + }, + + hasFill: function() { + return !!this.getFillColor(); + }, + + hasStroke: function() { + return !!this.getStrokeColor() && this.getStrokeWidth() > 0; + }, + + hasShadow: function() { + return !!this.getShadowColor() && this.getShadowBlur() > 0; + }, + + getView: function() { + return this._project.getView(); + }, + + getFontStyle: function() { + var fontSize = this.getFontSize(); + return this.getFontWeight() + + ' ' + fontSize + (/[a-z]/i.test(fontSize + '') ? ' ' : 'px ') + + this.getFontFamily(); + }, + + getFont: '#getFontFamily', + setFont: '#setFontFamily', + + getLeading: function getLeading() { + var leading = getLeading.base.call(this), + fontSize = this.getFontSize(); + if (/pt|em|%|px/.test(fontSize)) + fontSize = this.getView().getPixelSize(fontSize); + return leading != null ? leading : fontSize * 1.2; + } + +}); + +var DomElement = new function() { + + var special = /^(checked|value|selected|disabled)$/i, + translated = { text: 'textContent', html: 'innerHTML' }, + unitless = { lineHeight: 1, zoom: 1, zIndex: 1, opacity: 1 }; + + function create(nodes, parent) { + var res = []; + for (var i = 0, l = nodes && nodes.length; i < l;) { + var el = nodes[i++]; + if (typeof el === 'string') { + el = document.createElement(el); + } else if (!el || !el.nodeType) { + continue; + } + if (Base.isPlainObject(nodes[i])) + DomElement.set(el, nodes[i++]); + if (Array.isArray(nodes[i])) + create(nodes[i++], el); + if (parent) + parent.appendChild(el); + res.push(el); + } + return res; + } + + function handlePrefix(el, name, set, value) { + var prefixes = ['webkit', 'moz', 'Moz', 'ms', 'o', ''], + suffix = name[0].toUpperCase() + name.substring(1); + for (var i = 0; i < 6; i++) { + var prefix = prefixes[i], + key = prefix ? prefix + suffix : name; + if (key in el) { + if (set) { + el[key] = value; + } else { + return el[key]; + } + break; + } + } + } + + return { + create: function(nodes, parent) { + var isArray = Array.isArray(nodes), + res = create(isArray ? nodes : arguments, isArray ? parent : null); + return res.length == 1 ? res[0] : res; + }, + + find: function(selector, root) { + return (root || document).querySelector(selector); + }, + + findAll: function(selector, root) { + return (root || document).querySelectorAll(selector); + }, + + get: function(el, key) { + return el + ? special.test(key) + ? key === 'value' || typeof el[key] !== 'string' + ? el[key] + : true + : key in translated + ? el[translated[key]] + : el.getAttribute(key) + : null; + }, + + set: function(el, key, value) { + if (typeof key !== 'string') { + for (var name in key) + if (key.hasOwnProperty(name)) + this.set(el, name, key[name]); + } else if (!el || value === undefined) { + return el; + } else if (special.test(key)) { + el[key] = value; + } else if (key in translated) { + el[translated[key]] = value; + } else if (key === 'style') { + this.setStyle(el, value); + } else if (key === 'events') { + DomEvent.add(el, value); + } else { + el.setAttribute(key, value); + } + return el; + }, + + getStyles: function(el) { + var doc = el && el.nodeType !== 9 ? el.ownerDocument : el, + view = doc && doc.defaultView; + return view && view.getComputedStyle(el, ''); + }, + + getStyle: function(el, key) { + return el && el.style[key] || this.getStyles(el)[key] || null; + }, + + setStyle: function(el, key, value) { + if (typeof key !== 'string') { + for (var name in key) + if (key.hasOwnProperty(name)) + this.setStyle(el, name, key[name]); + } else { + if (/^-?[\d\.]+$/.test(value) && !(key in unitless)) + value += 'px'; + el.style[key] = value; + } + return el; + }, + + hasClass: function(el, cls) { + return new RegExp('\\s*' + cls + '\\s*').test(el.className); + }, + + addClass: function(el, cls) { + el.className = (el.className + ' ' + cls).trim(); + }, + + removeClass: function(el, cls) { + el.className = el.className.replace( + new RegExp('\\s*' + cls + '\\s*'), ' ').trim(); + }, + + remove: function(el) { + if (el.parentNode) + el.parentNode.removeChild(el); + }, + + removeChildren: function(el) { + while (el.firstChild) + el.removeChild(el.firstChild); + }, + + getBounds: function(el, viewport) { + var doc = el.ownerDocument, + body = doc.body, + html = doc.documentElement, + rect; + try { + rect = el.getBoundingClientRect(); + } catch (e) { + rect = { left: 0, top: 0, width: 0, height: 0 }; + } + var x = rect.left - (html.clientLeft || body.clientLeft || 0), + y = rect.top - (html.clientTop || body.clientTop || 0); + if (!viewport) { + var view = doc.defaultView; + x += view.pageXOffset || html.scrollLeft || body.scrollLeft; + y += view.pageYOffset || html.scrollTop || body.scrollTop; + } + return new Rectangle(x, y, rect.width, rect.height); + }, + + getViewportBounds: function(el) { + var doc = el.ownerDocument, + view = doc.defaultView, + html = doc.documentElement; + return new Rectangle(0, 0, + view.innerWidth || html.clientWidth, + view.innerHeight || html.clientHeight + ); + }, + + getOffset: function(el, viewport) { + return this.getBounds(el, viewport).getPoint(); + }, + + getSize: function(el) { + return this.getBounds(el, true).getSize(); + }, + + isInvisible: function(el) { + return this.getSize(el).equals(new Size(0, 0)); + }, + + isInView: function(el) { + return !this.isInvisible(el) && this.getViewportBounds(el).intersects( + this.getBounds(el, true)); + }, + + getPrefixed: function(el, name) { + return handlePrefix(el, name); + }, + + setPrefixed: function(el, name, value) { + if (typeof name === 'object') { + for (var key in name) + handlePrefix(el, key, true, name[key]); + } else { + handlePrefix(el, name, true, value); + } + } + }; +}; + +var DomEvent = { + add: function(el, events) { + for (var type in events) { + var func = events[type], + parts = type.split(/[\s,]+/g); + for (var i = 0, l = parts.length; i < l; i++) + el.addEventListener(parts[i], func, false); + } + }, + + remove: function(el, events) { + for (var type in events) { + var func = events[type], + parts = type.split(/[\s,]+/g); + for (var i = 0, l = parts.length; i < l; i++) + el.removeEventListener(parts[i], func, false); + } + }, + + getPoint: function(event) { + var pos = event.targetTouches + ? event.targetTouches.length + ? event.targetTouches[0] + : event.changedTouches[0] + : event; + return new Point( + pos.pageX || pos.clientX + document.documentElement.scrollLeft, + pos.pageY || pos.clientY + document.documentElement.scrollTop + ); + }, + + getTarget: function(event) { + return event.target || event.srcElement; + }, + + getRelatedTarget: function(event) { + return event.relatedTarget || event.toElement; + }, + + getOffset: function(event, target) { + return DomEvent.getPoint(event).subtract(DomElement.getOffset( + target || DomEvent.getTarget(event))); + }, + + stop: function(event) { + event.stopPropagation(); + event.preventDefault(); + } +}; + +DomEvent.requestAnimationFrame = new function() { + var nativeRequest = DomElement.getPrefixed(window, 'requestAnimationFrame'), + requested = false, + callbacks = [], + focused = true, + timer; + + DomEvent.add(window, { + focus: function() { + focused = true; + }, + blur: function() { + focused = false; + } + }); + + function handleCallbacks() { + for (var i = callbacks.length - 1; i >= 0; i--) { + var entry = callbacks[i], + func = entry[0], + el = entry[1]; + if (!el || (PaperScope.getAttribute(el, 'keepalive') == 'true' + || focused) && DomElement.isInView(el)) { + callbacks.splice(i, 1); + func(); + } + } + if (nativeRequest) { + if (callbacks.length) { + nativeRequest(handleCallbacks); + } else { + requested = false; + } + } + } + + return function(callback, element) { + callbacks.push([callback, element]); + if (nativeRequest) { + if (!requested) { + nativeRequest(handleCallbacks); + requested = true; + } + } else if (!timer) { + timer = setInterval(handleCallbacks, 1000 / 60); + } + }; +}; + +var View = Base.extend(Callback, { + _class: 'View', + + initialize: function View(project, element) { + this._project = project; + this._scope = project._scope; + this._element = element; + var size; + if (!this._pixelRatio) + this._pixelRatio = window.devicePixelRatio || 1; + this._id = element.getAttribute('id'); + if (this._id == null) + element.setAttribute('id', this._id = 'view-' + View._id++); + DomEvent.add(element, this._viewEvents); + var none = 'none'; + DomElement.setPrefixed(element.style, { + userSelect: none, + touchAction: none, + touchCallout: none, + contentZooming: none, + userDrag: none, + tapHighlightColor: 'rgba(0,0,0,0)' + }); + if (PaperScope.hasAttribute(element, 'resize')) { + var offset = DomElement.getOffset(element, true), + that = this; + size = DomElement.getViewportBounds(element) + .getSize().subtract(offset); + this._windowEvents = { + resize: function() { + if (!DomElement.isInvisible(element)) + offset = DomElement.getOffset(element, true); + that.setViewSize(DomElement.getViewportBounds(element) + .getSize().subtract(offset)); + } + }; + DomEvent.add(window, this._windowEvents); + } else { + size = DomElement.getSize(element); + if (size.isNaN() || size.isZero()) { + var getSize = function(name) { + return element[name] + || parseInt(element.getAttribute(name), 10); + }; + size = new Size(getSize('width'), getSize('height')); + } + } + this._setViewSize(size); + if (PaperScope.hasAttribute(element, 'stats') + && typeof Stats !== 'undefined') { + this._stats = new Stats(); + var stats = this._stats.domElement, + style = stats.style, + offset = DomElement.getOffset(element); + style.position = 'absolute'; + style.left = offset.x + 'px'; + style.top = offset.y + 'px'; + document.body.appendChild(stats); + } + View._views.push(this); + View._viewsById[this._id] = this; + this._viewSize = size; + (this._matrix = new Matrix())._owner = this; + this._zoom = 1; + if (!View._focused) + View._focused = this; + this._frameItems = {}; + this._frameItemCount = 0; + }, + + remove: function() { + if (!this._project) + return false; + if (View._focused === this) + View._focused = null; + View._views.splice(View._views.indexOf(this), 1); + delete View._viewsById[this._id]; + if (this._project._view === this) + this._project._view = null; + DomEvent.remove(this._element, this._viewEvents); + DomEvent.remove(window, this._windowEvents); + this._element = this._project = null; + this.detach('frame'); + this._animate = false; + this._frameItems = {}; + return true; + }, + + _events: { + onFrame: { + install: function() { + this.play(); + }, + + uninstall: function() { + this.pause(); + } + }, + + onResize: {} + }, + + _animate: false, + _time: 0, + _count: 0, + + _requestFrame: function() { + var that = this; + DomEvent.requestAnimationFrame(function() { + that._requested = false; + if (!that._animate) + return; + that._requestFrame(); + that._handleFrame(); + }, this._element); + this._requested = true; + }, + + _handleFrame: function() { + paper = this._scope; + var now = Date.now() / 1000, + delta = this._before ? now - this._before : 0; + this._before = now; + this._handlingFrame = true; + this.fire('frame', new Base({ + delta: delta, + time: this._time += delta, + count: this._count++ + })); + if (this._stats) + this._stats.update(); + this._handlingFrame = false; + this.update(); + }, + + _animateItem: function(item, animate) { + var items = this._frameItems; + if (animate) { + items[item._id] = { + item: item, + time: 0, + count: 0 + }; + if (++this._frameItemCount === 1) + this.attach('frame', this._handleFrameItems); + } else { + delete items[item._id]; + if (--this._frameItemCount === 0) { + this.detach('frame', this._handleFrameItems); + } + } + }, + + _handleFrameItems: function(event) { + for (var i in this._frameItems) { + var entry = this._frameItems[i]; + entry.item.fire('frame', new Base(event, { + time: entry.time += event.delta, + count: entry.count++ + })); + } + }, + + _update: function() { + this._project._needsUpdate = true; + if (this._handlingFrame) + return; + if (this._animate) { + this._handleFrame(); + } else { + this.update(); + } + }, + + _changed: function(flags) { + if (flags & 1) + this._project._needsUpdate = true; + }, + + _transform: function(matrix) { + this._matrix.concatenate(matrix); + this._bounds = null; + this._update(); + }, + + getElement: function() { + return this._element; + }, + + getPixelRatio: function() { + return this._pixelRatio; + }, + + getResolution: function() { + return this._pixelRatio * 72; + }, + + getViewSize: function() { + var size = this._viewSize; + return new LinkedSize(size.width, size.height, this, 'setViewSize'); + }, + + setViewSize: function() { + var size = Size.read(arguments), + delta = size.subtract(this._viewSize); + if (delta.isZero()) + return; + this._viewSize.set(size.width, size.height); + this._setViewSize(size); + this._bounds = null; + this.fire('resize', { + size: size, + delta: delta + }); + this._update(); + }, + + _setViewSize: function(size) { + var element = this._element; + element.width = size.width; + element.height = size.height; + }, + + getBounds: function() { + if (!this._bounds) + this._bounds = this._matrix.inverted()._transformBounds( + new Rectangle(new Point(), this._viewSize)); + return this._bounds; + }, + + getSize: function() { + return this.getBounds().getSize(); + }, + + getCenter: function() { + return this.getBounds().getCenter(); + }, + + setCenter: function(center) { + center = Point.read(arguments); + this.scrollBy(center.subtract(this.getCenter())); + }, + + getZoom: function() { + return this._zoom; + }, + + setZoom: function(zoom) { + this._transform(new Matrix().scale(zoom / this._zoom, + this.getCenter())); + this._zoom = zoom; + }, + + isVisible: function() { + return DomElement.isInView(this._element); + }, + + scrollBy: function() { + this._transform(new Matrix().translate(Point.read(arguments).negate())); + }, + + play: function() { + this._animate = true; + if (!this._requested) + this._requestFrame(); + }, + + pause: function() { + this._animate = false; + }, + + draw: function() { + this.update(); + }, + + projectToView: function() { + return this._matrix._transformPoint(Point.read(arguments)); + }, + + viewToProject: function() { + return this._matrix._inverseTransform(Point.read(arguments)); + } + +}, { + statics: { + _views: [], + _viewsById: {}, + _id: 0, + + create: function(project, element) { + if (typeof element === 'string') + element = document.getElementById(element); + return new CanvasView(project, element); + } + } +}, new function() { + var tool, + prevFocus, + tempFocus, + dragging = false; + + function getView(event) { + var target = DomEvent.getTarget(event); + return target.getAttribute && View._viewsById[target.getAttribute('id')]; + } + + function viewToProject(view, event) { + return view.viewToProject(DomEvent.getOffset(event, view._element)); + } + + function updateFocus() { + if (!View._focused || !View._focused.isVisible()) { + for (var i = 0, l = View._views.length; i < l; i++) { + var view = View._views[i]; + if (view && view.isVisible()) { + View._focused = tempFocus = view; + break; + } + } + } + } + + function handleMouseMove(view, point, event) { + view._handleEvent('mousemove', point, event); + var tool = view._scope.tool; + if (tool) { + tool._handleEvent(dragging && tool.responds('mousedrag') + ? 'mousedrag' : 'mousemove', point, event); + } + view.update(); + return tool; + } + + var navigator = window.navigator, + mousedown, mousemove, mouseup; + if (navigator.pointerEnabled || navigator.msPointerEnabled) { + mousedown = 'pointerdown MSPointerDown'; + mousemove = 'pointermove MSPointerMove'; + mouseup = 'pointerup pointercancel MSPointerUp MSPointerCancel'; + } else { + mousedown = 'touchstart'; + mousemove = 'touchmove'; + mouseup = 'touchend touchcancel'; + if (!('ontouchstart' in window && navigator.userAgent.match( + /mobile|tablet|ip(ad|hone|od)|android|silk/i))) { + mousedown += ' mousedown'; + mousemove += ' mousemove'; + mouseup += ' mouseup'; + } + } + + var viewEvents = { + 'selectstart dragstart': function(event) { + if (dragging) + event.preventDefault(); + } + }; + + var docEvents = { + mouseout: function(event) { + var view = View._focused, + target = DomEvent.getRelatedTarget(event); + if (view && (!target || target.nodeName === 'HTML')) + handleMouseMove(view, viewToProject(view, event), event); + }, + + scroll: updateFocus + }; + + viewEvents[mousedown] = function(event) { + var view = View._focused = getView(event), + point = viewToProject(view, event); + dragging = true; + view._handleEvent('mousedown', point, event); + if (tool = view._scope.tool) + tool._handleEvent('mousedown', point, event); + view.update(); + }; + + docEvents[mousemove] = function(event) { + var view = View._focused; + if (!dragging) { + var target = getView(event); + if (target) { + if (view !== target) + handleMouseMove(view, viewToProject(view, event), event); + prevFocus = view; + view = View._focused = tempFocus = target; + } else if (tempFocus && tempFocus === view) { + view = View._focused = prevFocus; + updateFocus(); + } + } + if (view) { + var point = viewToProject(view, event); + if (dragging || view.getBounds().contains(point)) + tool = handleMouseMove(view, point, event); + } + }; + + docEvents[mouseup] = function(event) { + var view = View._focused; + if (!view || !dragging) + return; + var point = viewToProject(view, event); + dragging = false; + view._handleEvent('mouseup', point, event); + if (tool) + tool._handleEvent('mouseup', point, event); + view.update(); + }; + + DomEvent.add(document, docEvents); + + DomEvent.add(window, { + load: updateFocus + }); + + return { + _viewEvents: viewEvents, + + _handleEvent: function() {}, + + statics: { + updateFocus: updateFocus + } + }; +}); + +var CanvasView = View.extend({ + _class: 'CanvasView', + + initialize: function CanvasView(project, canvas) { + if (!(canvas instanceof HTMLCanvasElement)) { + var size = Size.read(arguments); + if (size.isZero()) + throw new Error( + 'Cannot create CanvasView with the provided argument: ' + + canvas); + canvas = CanvasProvider.getCanvas(size); + } + this._context = canvas.getContext('2d'); + this._eventCounters = {}; + this._pixelRatio = 1; + if (PaperScope.getAttribute(canvas, 'hidpi') !== 'off') { + var deviceRatio = window.devicePixelRatio || 1, + backingStoreRatio = DomElement.getPrefixed(this._context, + 'backingStorePixelRatio') || 1; + this._pixelRatio = deviceRatio / backingStoreRatio; + } + View.call(this, project, canvas); + }, + + _setViewSize: function(size) { + var width = size.width, + height = size.height, + pixelRatio = this._pixelRatio, + element = this._element, + style = element.style; + element.width = width * pixelRatio; + element.height = height * pixelRatio; + if (pixelRatio !== 1) { + style.width = width + 'px'; + style.height = height + 'px'; + this._context.scale(pixelRatio, pixelRatio); + } + }, + + getPixelSize: function(size) { + var ctx = this._context, + prevFont = ctx.font; + ctx.font = size + ' serif'; + size = parseFloat(ctx.font); + ctx.font = prevFont; + return size; + }, + + getTextWidth: function(font, lines) { + var ctx = this._context, + prevFont = ctx.font, + width = 0; + ctx.font = font; + for (var i = 0, l = lines.length; i < l; i++) + width = Math.max(width, ctx.measureText(lines[i]).width); + ctx.font = prevFont; + return width; + }, + + update: function() { + var project = this._project; + if (!project || !project._needsUpdate) + return false; + var ctx = this._context, + size = this._viewSize; + ctx.clearRect(0, 0, size.width + 1, size.height + 1); + project.draw(ctx, this._matrix, this._pixelRatio); + project._needsUpdate = false; + return true; + } +}, new function() { + + var downPoint, + lastPoint, + overPoint, + downItem, + lastItem, + overItem, + dragItem, + dblClick, + clickTime; + + function callEvent(view, type, event, point, target, lastPoint) { + var item = target, + mouseEvent; + + function call(obj) { + if (obj.responds(type)) { + if (!mouseEvent) { + mouseEvent = new MouseEvent(type, event, point, target, + lastPoint ? point.subtract(lastPoint) : null); + } + if (obj.fire(type, mouseEvent) && mouseEvent.isStopped) { + event.preventDefault(); + return true; + } + } + } + + while (item) { + if (call(item)) + return true; + item = item.getParent(); + } + if (call(view)) + return true; + return false; + } + + return { + _handleEvent: function(type, point, event) { + if (!this._eventCounters[type]) + return; + var project = this._project, + hit = project.hitTest(point, { + tolerance: this._scope.settings.hitTolerance, + fill: true, + stroke: true + }), + item = hit && hit.item, + stopped = false; + switch (type) { + case 'mousedown': + stopped = callEvent(this, type, event, point, item); + dblClick = lastItem == item && (Date.now() - clickTime < 300); + downItem = lastItem = item; + downPoint = lastPoint = overPoint = point; + dragItem = !stopped && item; + while (dragItem && !dragItem.responds('mousedrag')) + dragItem = dragItem._parent; + break; + case 'mouseup': + stopped = callEvent(this, type, event, point, item, downPoint); + if (dragItem) { + if (lastPoint && !lastPoint.equals(point)) + callEvent(this, 'mousedrag', event, point, dragItem, + lastPoint); + if (item !== dragItem) { + overPoint = point; + callEvent(this, 'mousemove', event, point, item, + overPoint); + } + } + if (!stopped && item && item === downItem) { + clickTime = Date.now(); + callEvent(this, dblClick && downItem.responds('doubleclick') + ? 'doubleclick' : 'click', event, downPoint, item); + dblClick = false; + } + downItem = dragItem = null; + break; + case 'mousemove': + if (dragItem) + stopped = callEvent(this, 'mousedrag', event, point, + dragItem, lastPoint); + if (!stopped) { + if (item !== overItem) + overPoint = point; + stopped = callEvent(this, type, event, point, item, + overPoint); + } + lastPoint = overPoint = point; + if (item !== overItem) { + callEvent(this, 'mouseleave', event, point, overItem); + overItem = item; + callEvent(this, 'mouseenter', event, point, item); + } + break; + } + return stopped; + } + }; +}); + +var Event = Base.extend({ + _class: 'Event', + + initialize: function Event(event) { + this.event = event; + }, + + isPrevented: false, + isStopped: false, + + preventDefault: function() { + this.isPrevented = true; + this.event.preventDefault(); + }, + + stopPropagation: function() { + this.isStopped = true; + this.event.stopPropagation(); + }, + + stop: function() { + this.stopPropagation(); + this.preventDefault(); + }, + + getModifiers: function() { + return Key.modifiers; + } +}); + +var KeyEvent = Event.extend({ + _class: 'KeyEvent', + + initialize: function KeyEvent(down, key, character, event) { + Event.call(this, event); + this.type = down ? 'keydown' : 'keyup'; + this.key = key; + this.character = character; + }, + + toString: function() { + return "{ type: '" + this.type + + "', key: '" + this.key + + "', character: '" + this.character + + "', modifiers: " + this.getModifiers() + + " }"; + } +}); + +var Key = new function() { + + var specialKeys = { + 8: 'backspace', + 9: 'tab', + 13: 'enter', + 16: 'shift', + 17: 'control', + 18: 'option', + 19: 'pause', + 20: 'caps-lock', + 27: 'escape', + 32: 'space', + 35: 'end', + 36: 'home', + 37: 'left', + 38: 'up', + 39: 'right', + 40: 'down', + 46: 'delete', + 91: 'command', + 93: 'command', + 224: 'command' + }, + + specialChars = { + 9: true, + 13: true, + 32: true + }, + + modifiers = new Base({ + shift: false, + control: false, + option: false, + command: false, + capsLock: false, + space: false + }), + + charCodeMap = {}, + keyMap = {}, + downCode; + + function handleKey(down, keyCode, charCode, event) { + var character = charCode ? String.fromCharCode(charCode) : '', + specialKey = specialKeys[keyCode], + key = specialKey || character.toLowerCase(), + type = down ? 'keydown' : 'keyup', + view = View._focused, + scope = view && view.isVisible() && view._scope, + tool = scope && scope.tool, + name; + keyMap[key] = down; + if (specialKey && (name = Base.camelize(specialKey)) in modifiers) + modifiers[name] = down; + if (down) { + charCodeMap[keyCode] = charCode; + } else { + delete charCodeMap[keyCode]; + } + if (tool && tool.responds(type)) { + paper = scope; + tool.fire(type, new KeyEvent(down, key, character, event)); + if (view) + view.update(); + } + } + + DomEvent.add(document, { + keydown: function(event) { + var code = event.which || event.keyCode; + if (code in specialKeys || modifiers.command) { + handleKey(true, code, + code in specialChars || modifiers.command ? code : 0, + event); + } else { + downCode = code; + } + }, + + keypress: function(event) { + if (downCode != null) { + handleKey(true, downCode, event.which || event.keyCode, event); + downCode = null; + } + }, + + keyup: function(event) { + var code = event.which || event.keyCode; + if (code in charCodeMap) + handleKey(false, code, charCodeMap[code], event); + } + }); + + DomEvent.add(window, { + blur: function(event) { + for (var code in charCodeMap) + handleKey(false, code, charCodeMap[code], event); + } + }); + + return { + modifiers: modifiers, + + isDown: function(key) { + return !!keyMap[key]; + } + }; +}; + +var MouseEvent = Event.extend({ + _class: 'MouseEvent', + + initialize: function MouseEvent(type, event, point, target, delta) { + Event.call(this, event); + this.type = type; + this.point = point; + this.target = target; + this.delta = delta; + }, + + toString: function() { + return "{ type: '" + this.type + + "', point: " + this.point + + ', target: ' + this.target + + (this.delta ? ', delta: ' + this.delta : '') + + ', modifiers: ' + this.getModifiers() + + ' }'; + } +}); + + Base.extend(Callback, { + _class: 'Palette', + _events: [ 'onChange' ], + + initialize: function Palette(title, components, values) { + var parent = DomElement.find('.palettejs-panel') + || DomElement.find('body').appendChild( + DomElement.create('div', { 'class': 'palettejs-panel' })); + this._element = parent.appendChild( + DomElement.create('table', { 'class': 'palettejs-pane' })); + this._title = title; + if (!values) + values = {}; + for (var name in (this.components = components)) { + var component = components[name]; + if (!(component instanceof Component)) { + if (component.value == null) + component.value = values[name]; + component.name = name; + component = components[name] = new Component(component); + } + this._element.appendChild(component._element); + component._palette = this; + if (values[name] === undefined) + values[name] = component.value; + } + this.values = Base.each(values, function(value, name) { + var component = components[name]; + if (component) { + Base.define(values, name, { + enumerable: true, + configurable: true, + get: function() { + return component._value; + }, + set: function(val) { + component.setValue(val); + } + }); + } + }); + if (window.paper) + paper.palettes.push(this); + }, + + reset: function() { + for (var i in this.components) + this.components[i].reset(); + }, + + remove: function() { + DomElement.remove(this._element); + } +}); + +var Component = Base.extend(Callback, { + _class: 'Component', + _events: [ 'onChange', 'onClick' ], + + _types: { + 'boolean': { + type: 'checkbox', + value: 'checked' + }, + + string: { + type: 'text' + }, + + number: { + type: 'number', + number: true + }, + + button: { + type: 'button' + }, + + text: { + tag: 'div', + value: 'text' + }, + + slider: { + type: 'range', + number: true + }, + + list: { + tag: 'select', + + setOptions: function() { + DomElement.removeChildren(this._input); + DomElement.create(Base.each(this._options, function(option) { + this.push('option', { value: option, text: option }); + }, []), this._input); + } + }, + + color: { + type: 'color', + + getValue: function(value) { + return new Color(value); + }, + + setValue: function(value) { + return new Color(value).toCSS( + DomElement.get(this._input, 'type') === 'color'); + } + } + }, + + initialize: function Component(obj) { + this._id = Component._id = (Component._id || 0) + 1; + this._type = obj.type in this._types + ? obj.type + : 'options' in obj + ? 'list' + : 'onClick' in obj + ? 'button' + : typeof obj.value; + this._meta = this._types[this._type] || { type: this._type }; + var that = this, + id = 'component-' + this._id; + this._dontFire = true; + this._input = DomElement.create(this._meta.tag || 'input', { + id: id, + type: this._meta.type, + events: { + change: function() { + that.setValue( + DomElement.get(this, that._meta.value || 'value')); + }, + click: function() { + that.fire('click'); + } + } + }); + this.attach('change', function(value) { + if (!this._dontFire) + this._palette.fire('change', this, this.name, value); + }); + this._element = DomElement.create('tr', [ + 'td', [this._label = DomElement.create('label', { 'for': id })], + 'td', [this._input] + ]); + Base.each(obj, function(value, key) { + this[key] = value; + }, this); + this._defaultValue = this._value; + this._dontFire = false; + }, + + getType: function() { + return this._type; + }, + + getLabel: function() { + return this.__label; + }, + + setLabel: function(label) { + this.__label = label; + DomElement.set(this._label, 'text', label + ':'); + }, + + getOptions: function() { + return this._options; + }, + + setOptions: function(options) { + this._options = options; + var setOptions = this._meta.setOptions; + if (setOptions) + setOptions.call(this); + }, + + getValue: function() { + var value = this._value, + getValue = this._meta.getValue; + return getValue ? getValue.call(this, value) : value; + }, + + setValue: function(value) { + var key = this._meta.value || 'value', + setValue = this._meta.setValue; + if (setValue) + value = setValue.call(this, value); + DomElement.set(this._input, key, value); + value = DomElement.get(this._input, key); + if (this._meta.number) + value = parseFloat(value, 10); + if (this._value !== value) { + this._value = value; + if (!this._dontFire) + this.fire('change', this.getValue()); + } + }, + + getRange: function() { + return [parseFloat(DomElement.get(this._input, 'min')), + parseFloat(DomElement.get(this._input, 'max'))]; + }, + + setRange: function(min, max) { + var range = Array.isArray(min) ? min : [min, max]; + DomElement.set(this._input, { min: range[0], max: range[1] }); + }, + + getMin: function() { + return this.getRange()[0]; + }, + + setMin: function(min) { + this.setRange(min, this.getMax()); + }, + + getMax: function() { + return this.getRange()[1]; + }, + + setMax: function(max) { + this.setRange(this.getMin(), max); + }, + + getStep: function() { + return parseFloat(DomElement.get(this._input, 'step')); + }, + + setStep: function(step) { + DomElement.set(this._input, 'step', step); + }, + + reset: function() { + this.setValue(this._defaultValue); + } +}); + +var ToolEvent = Event.extend({ + _class: 'ToolEvent', + _item: null, + + initialize: function ToolEvent(tool, type, event) { + this.tool = tool; + this.type = type; + this.event = event; + }, + + _choosePoint: function(point, toolPoint) { + return point ? point : toolPoint ? toolPoint.clone() : null; + }, + + getPoint: function() { + return this._choosePoint(this._point, this.tool._point); + }, + + setPoint: function(point) { + this._point = point; + }, + + getLastPoint: function() { + return this._choosePoint(this._lastPoint, this.tool._lastPoint); + }, + + setLastPoint: function(lastPoint) { + this._lastPoint = lastPoint; + }, + + getDownPoint: function() { + return this._choosePoint(this._downPoint, this.tool._downPoint); + }, + + setDownPoint: function(downPoint) { + this._downPoint = downPoint; + }, + + getMiddlePoint: function() { + if (!this._middlePoint && this.tool._lastPoint) { + return this.tool._point.add(this.tool._lastPoint).divide(2); + } + return this._middlePoint; + }, + + setMiddlePoint: function(middlePoint) { + this._middlePoint = middlePoint; + }, + + getDelta: function() { + return !this._delta && this.tool._lastPoint + ? this.tool._point.subtract(this.tool._lastPoint) + : this._delta; + }, + + setDelta: function(delta) { + this._delta = delta; + }, + + getCount: function() { + return /^mouse(down|up)$/.test(this.type) + ? this.tool._downCount + : this.tool._count; + }, + + setCount: function(count) { + this.tool[/^mouse(down|up)$/.test(this.type) ? 'downCount' : 'count'] + = count; + }, + + getItem: function() { + if (!this._item) { + var result = this.tool._scope.project.hitTest(this.getPoint()); + if (result) { + var item = result.item, + parent = item._parent; + while (/^(Group|CompoundPath)$/.test(parent._class)) { + item = parent; + parent = parent._parent; + } + this._item = item; + } + } + return this._item; + }, + + setItem: function(item) { + this._item = item; + }, + + toString: function() { + return '{ type: ' + this.type + + ', point: ' + this.getPoint() + + ', count: ' + this.getCount() + + ', modifiers: ' + this.getModifiers() + + ' }'; + } +}); + +var Tool = PaperScopeItem.extend({ + _class: 'Tool', + _list: 'tools', + _reference: 'tool', + _events: [ 'onActivate', 'onDeactivate', 'onEditOptions', + 'onMouseDown', 'onMouseUp', 'onMouseDrag', 'onMouseMove', + 'onKeyDown', 'onKeyUp' ], + + initialize: function Tool(props) { + PaperScopeItem.call(this); + this._firstMove = true; + this._count = 0; + this._downCount = 0; + this._set(props); + }, + + getMinDistance: function() { + return this._minDistance; + }, + + setMinDistance: function(minDistance) { + this._minDistance = minDistance; + if (this._minDistance != null && this._maxDistance != null + && this._minDistance > this._maxDistance) { + this._maxDistance = this._minDistance; + } + }, + + getMaxDistance: function() { + return this._maxDistance; + }, + + setMaxDistance: function(maxDistance) { + this._maxDistance = maxDistance; + if (this._minDistance != null && this._maxDistance != null + && this._maxDistance < this._minDistance) { + this._minDistance = maxDistance; + } + }, + + getFixedDistance: function() { + return this._minDistance == this._maxDistance + ? this._minDistance : null; + }, + + setFixedDistance: function(distance) { + this._minDistance = distance; + this._maxDistance = distance; + }, + + _updateEvent: function(type, point, minDistance, maxDistance, start, + needsChange, matchMaxDistance) { + if (!start) { + if (minDistance != null || maxDistance != null) { + var minDist = minDistance != null ? minDistance : 0, + vector = point.subtract(this._point), + distance = vector.getLength(); + if (distance < minDist) + return false; + var maxDist = maxDistance != null ? maxDistance : 0; + if (maxDist != 0) { + if (distance > maxDist) { + point = this._point.add(vector.normalize(maxDist)); + } else if (matchMaxDistance) { + return false; + } + } + } + if (needsChange && point.equals(this._point)) + return false; + } + this._lastPoint = start && type == 'mousemove' ? point : this._point; + this._point = point; + switch (type) { + case 'mousedown': + this._lastPoint = this._downPoint; + this._downPoint = this._point; + this._downCount++; + break; + case 'mouseup': + this._lastPoint = this._downPoint; + break; + } + this._count = start ? 0 : this._count + 1; + return true; + }, + + _fireEvent: function(type, event) { + var sets = paper.project._removeSets; + if (sets) { + if (type === 'mouseup') + sets.mousedrag = null; + var set = sets[type]; + if (set) { + for (var id in set) { + var item = set[id]; + for (var key in sets) { + var other = sets[key]; + if (other && other != set) + delete other[item._id]; + } + item.remove(); + } + sets[type] = null; + } + } + return this.responds(type) + && this.fire(type, new ToolEvent(this, type, event)); + }, + + _handleEvent: function(type, point, event) { + paper = this._scope; + var called = false; + switch (type) { + case 'mousedown': + this._updateEvent(type, point, null, null, true, false, false); + called = this._fireEvent(type, event); + break; + case 'mousedrag': + var needsChange = false, + matchMaxDistance = false; + while (this._updateEvent(type, point, this.minDistance, + this.maxDistance, false, needsChange, matchMaxDistance)) { + called = this._fireEvent(type, event) || called; + needsChange = true; + matchMaxDistance = true; + } + break; + case 'mouseup': + if (!point.equals(this._point) + && this._updateEvent('mousedrag', point, this.minDistance, + this.maxDistance, false, false, false)) { + called = this._fireEvent('mousedrag', event); + } + this._updateEvent(type, point, null, this.maxDistance, false, + false, false); + called = this._fireEvent(type, event) || called; + this._updateEvent(type, point, null, null, true, false, false); + this._firstMove = true; + break; + case 'mousemove': + while (this._updateEvent(type, point, this.minDistance, + this.maxDistance, this._firstMove, true, false)) { + called = this._fireEvent(type, event) || called; + this._firstMove = false; + } + break; + } + if (called) + event.preventDefault(); + return called; + } + +}); + +var Http = { + request: function(method, url, callback) { + var xhr = new (window.ActiveXObject || XMLHttpRequest)( + 'Microsoft.XMLHTTP'); + xhr.open(method.toUpperCase(), url, true); + if ('overrideMimeType' in xhr) + xhr.overrideMimeType('text/plain'); + xhr.onreadystatechange = function() { + if (xhr.readyState === 4) { + var status = xhr.status; + if (status === 0 || status === 200) { + callback.call(xhr, xhr.responseText); + } else { + throw new Error('Could not load ' + url + ' (Error ' + + status + ')'); + } + } + }; + return xhr.send(null); + } +}; + +var CanvasProvider = { + canvases: [], + + getCanvas: function(width, height, pixelRatio) { + var canvas, + init = true; + if (typeof width === 'object') { + pixelRatio = height; + height = width.height; + width = width.width; + } + if (!pixelRatio) { + pixelRatio = 1; + } else if (pixelRatio !== 1) { + width *= pixelRatio; + height *= pixelRatio; + } + if (this.canvases.length) { + canvas = this.canvases.pop(); + } else { + canvas = document.createElement('canvas'); + } + var ctx = canvas.getContext('2d'); + if (canvas.width === width && canvas.height === height) { + if (init) + ctx.clearRect(0, 0, width + 1, height + 1); + } else { + canvas.width = width; + canvas.height = height; + } + ctx.save(); + if (pixelRatio !== 1) + ctx.scale(pixelRatio, pixelRatio); + return canvas; + }, + + getContext: function(width, height, pixelRatio) { + return this.getCanvas(width, height, pixelRatio).getContext('2d'); + }, + + release: function(obj) { + var canvas = obj.canvas ? obj.canvas : obj; + canvas.getContext('2d').restore(); + this.canvases.push(canvas); + } +}; + +var BlendMode = new function() { + var min = Math.min, + max = Math.max, + abs = Math.abs, + sr, sg, sb, sa, + br, bg, bb, ba, + dr, dg, db; + + function getLum(r, g, b) { + return 0.2989 * r + 0.587 * g + 0.114 * b; + } + + function setLum(r, g, b, l) { + var d = l - getLum(r, g, b); + dr = r + d; + dg = g + d; + db = b + d; + var l = getLum(dr, dg, db), + mn = min(dr, dg, db), + mx = max(dr, dg, db); + if (mn < 0) { + var lmn = l - mn; + dr = l + (dr - l) * l / lmn; + dg = l + (dg - l) * l / lmn; + db = l + (db - l) * l / lmn; + } + if (mx > 255) { + var ln = 255 - l, + mxl = mx - l; + dr = l + (dr - l) * ln / mxl; + dg = l + (dg - l) * ln / mxl; + db = l + (db - l) * ln / mxl; + } + } + + function getSat(r, g, b) { + return max(r, g, b) - min(r, g, b); + } + + function setSat(r, g, b, s) { + var col = [r, g, b], + mx = max(r, g, b), + mn = min(r, g, b), + md; + mn = mn === r ? 0 : mn === g ? 1 : 2; + mx = mx === r ? 0 : mx === g ? 1 : 2; + md = min(mn, mx) === 0 ? max(mn, mx) === 1 ? 2 : 1 : 0; + if (col[mx] > col[mn]) { + col[md] = (col[md] - col[mn]) * s / (col[mx] - col[mn]); + col[mx] = s; + } else { + col[md] = col[mx] = 0; + } + col[mn] = 0; + dr = col[0]; + dg = col[1]; + db = col[2]; + } + + var modes = { + multiply: function() { + dr = br * sr / 255; + dg = bg * sg / 255; + db = bb * sb / 255; + }, + + screen: function() { + dr = br + sr - (br * sr / 255); + dg = bg + sg - (bg * sg / 255); + db = bb + sb - (bb * sb / 255); + }, + + overlay: function() { + dr = br < 128 ? 2 * br * sr / 255 : 255 - 2 * (255 - br) * (255 - sr) / 255; + dg = bg < 128 ? 2 * bg * sg / 255 : 255 - 2 * (255 - bg) * (255 - sg) / 255; + db = bb < 128 ? 2 * bb * sb / 255 : 255 - 2 * (255 - bb) * (255 - sb) / 255; + }, + + 'soft-light': function() { + var t = sr * br / 255; + dr = t + br * (255 - (255 - br) * (255 - sr) / 255 - t) / 255; + t = sg * bg / 255; + dg = t + bg * (255 - (255 - bg) * (255 - sg) / 255 - t) / 255; + t = sb * bb / 255; + db = t + bb * (255 - (255 - bb) * (255 - sb) / 255 - t) / 255; + }, + + 'hard-light': function() { + dr = sr < 128 ? 2 * sr * br / 255 : 255 - 2 * (255 - sr) * (255 - br) / 255; + dg = sg < 128 ? 2 * sg * bg / 255 : 255 - 2 * (255 - sg) * (255 - bg) / 255; + db = sb < 128 ? 2 * sb * bb / 255 : 255 - 2 * (255 - sb) * (255 - bb) / 255; + }, + + 'color-dodge': function() { + dr = br === 0 ? 0 : sr === 255 ? 255 : min(255, 255 * br / (255 - sr)); + dg = bg === 0 ? 0 : sg === 255 ? 255 : min(255, 255 * bg / (255 - sg)); + db = bb === 0 ? 0 : sb === 255 ? 255 : min(255, 255 * bb / (255 - sb)); + }, + + 'color-burn': function() { + dr = br === 255 ? 255 : sr === 0 ? 0 : max(0, 255 - (255 - br) * 255 / sr); + dg = bg === 255 ? 255 : sg === 0 ? 0 : max(0, 255 - (255 - bg) * 255 / sg); + db = bb === 255 ? 255 : sb === 0 ? 0 : max(0, 255 - (255 - bb) * 255 / sb); + }, + + darken: function() { + dr = br < sr ? br : sr; + dg = bg < sg ? bg : sg; + db = bb < sb ? bb : sb; + }, + + lighten: function() { + dr = br > sr ? br : sr; + dg = bg > sg ? bg : sg; + db = bb > sb ? bb : sb; + }, + + difference: function() { + dr = br - sr; + if (dr < 0) + dr = -dr; + dg = bg - sg; + if (dg < 0) + dg = -dg; + db = bb - sb; + if (db < 0) + db = -db; + }, + + exclusion: function() { + dr = br + sr * (255 - br - br) / 255; + dg = bg + sg * (255 - bg - bg) / 255; + db = bb + sb * (255 - bb - bb) / 255; + }, + + hue: function() { + setSat(sr, sg, sb, getSat(br, bg, bb)); + setLum(dr, dg, db, getLum(br, bg, bb)); + }, + + saturation: function() { + setSat(br, bg, bb, getSat(sr, sg, sb)); + setLum(dr, dg, db, getLum(br, bg, bb)); + }, + + luminosity: function() { + setLum(br, bg, bb, getLum(sr, sg, sb)); + }, + + color: function() { + setLum(sr, sg, sb, getLum(br, bg, bb)); + }, + + add: function() { + dr = min(br + sr, 255); + dg = min(bg + sg, 255); + db = min(bb + sb, 255); + }, + + subtract: function() { + dr = max(br - sr, 0); + dg = max(bg - sg, 0); + db = max(bb - sb, 0); + }, + + average: function() { + dr = (br + sr) / 2; + dg = (bg + sg) / 2; + db = (bb + sb) / 2; + }, + + negation: function() { + dr = 255 - abs(255 - sr - br); + dg = 255 - abs(255 - sg - bg); + db = 255 - abs(255 - sb - bb); + } + }; + + var nativeModes = this.nativeModes = Base.each([ + 'source-over', 'source-in', 'source-out', 'source-atop', + 'destination-over', 'destination-in', 'destination-out', + 'destination-atop', 'lighter', 'darker', 'copy', 'xor' + ], function(mode) { + this[mode] = true; + }, {}); + + var ctx = CanvasProvider.getContext(1, 1); + Base.each(modes, function(func, mode) { + var darken = mode === 'darken', + ok = false; + ctx.save(); + try { + ctx.fillStyle = darken ? '#300' : '#a00'; + ctx.fillRect(0, 0, 1, 1); + ctx.globalCompositeOperation = mode; + if (ctx.globalCompositeOperation === mode) { + ctx.fillStyle = darken ? '#a00' : '#300'; + ctx.fillRect(0, 0, 1, 1); + ok = ctx.getImageData(0, 0, 1, 1).data[0] !== darken ? 170 : 51; + } + } catch (e) {} + ctx.restore(); + nativeModes[mode] = ok; + }); + CanvasProvider.release(ctx); + + this.process = function(mode, srcContext, dstContext, alpha, offset) { + var srcCanvas = srcContext.canvas, + normal = mode === 'normal'; + if (normal || nativeModes[mode]) { + dstContext.save(); + dstContext.setTransform(1, 0, 0, 1, 0, 0); + dstContext.globalAlpha = alpha; + if (!normal) + dstContext.globalCompositeOperation = mode; + dstContext.drawImage(srcCanvas, offset.x, offset.y); + dstContext.restore(); + } else { + var process = modes[mode]; + if (!process) + return; + var dstData = dstContext.getImageData(offset.x, offset.y, + srcCanvas.width, srcCanvas.height), + dst = dstData.data, + src = srcContext.getImageData(0, 0, + srcCanvas.width, srcCanvas.height).data; + for (var i = 0, l = dst.length; i < l; i += 4) { + sr = src[i]; + br = dst[i]; + sg = src[i + 1]; + bg = dst[i + 1]; + sb = src[i + 2]; + bb = dst[i + 2]; + sa = src[i + 3]; + ba = dst[i + 3]; + process(); + var a1 = sa * alpha / 255, + a2 = 1 - a1; + dst[i] = a1 * dr + a2 * br; + dst[i + 1] = a1 * dg + a2 * bg; + dst[i + 2] = a1 * db + a2 * bb; + dst[i + 3] = sa * alpha + a2 * ba; + } + dstContext.putImageData(dstData, offset.x, offset.y); + } + }; +}; + +var SVGStyles = Base.each({ + fillColor: ['fill', 'color'], + strokeColor: ['stroke', 'color'], + strokeWidth: ['stroke-width', 'number'], + strokeCap: ['stroke-linecap', 'string'], + strokeJoin: ['stroke-linejoin', 'string'], + miterLimit: ['stroke-miterlimit', 'number'], + dashArray: ['stroke-dasharray', 'array'], + dashOffset: ['stroke-dashoffset', 'number'], + fontFamily: ['font-family', 'string'], + fontWeight: ['font-weight', 'string'], + fontSize: ['font-size', 'number'], + justification: ['text-anchor', 'lookup', { + left: 'start', + center: 'middle', + right: 'end' + }], + opacity: ['opacity', 'number'], + blendMode: ['mix-blend-mode', 'string'] +}, function(entry, key) { + var part = Base.capitalize(key), + lookup = entry[2]; + this[key] = { + type: entry[1], + property: key, + attribute: entry[0], + toSVG: lookup, + fromSVG: lookup && Base.each(lookup, function(value, name) { + this[value] = name; + }, {}), + get: 'get' + part, + set: 'set' + part + }; +}, {}); + +var SVGNamespaces = { + href: 'http://www.w3.org/1999/xlink', + xlink: 'http://www.w3.org/2000/xmlns' +}; + +new function() { + var formatter; + + function setAttributes(node, attrs) { + for (var key in attrs) { + var val = attrs[key], + namespace = SVGNamespaces[key]; + if (typeof val === 'number') + val = formatter.number(val); + if (namespace) { + node.setAttributeNS(namespace, key, val); + } else { + node.setAttribute(key, val); + } + } + return node; + } + + function createElement(tag, attrs) { + return setAttributes( + document.createElementNS('http://www.w3.org/2000/svg', tag), attrs); + } + + function getTransform(item, coordinates, center) { + var matrix = item._matrix, + trans = matrix.getTranslation(), + attrs = {}; + if (coordinates) { + matrix = matrix.shiftless(); + var point = matrix._inverseTransform(trans); + attrs[center ? 'cx' : 'x'] = point.x; + attrs[center ? 'cy' : 'y'] = point.y; + trans = null; + } + if (!matrix.isIdentity()) { + var decomposed = matrix.decompose(); + if (decomposed && !decomposed.shearing) { + var parts = [], + angle = decomposed.rotation, + scale = decomposed.scaling; + if (trans && !trans.isZero()) + parts.push('translate(' + formatter.point(trans) + ')'); + if (angle) + parts.push('rotate(' + formatter.number(angle) + ')'); + if (!Numerical.isZero(scale.x - 1) + || !Numerical.isZero(scale.y - 1)) + parts.push('scale(' + formatter.point(scale) +')'); + attrs.transform = parts.join(' '); + } else { + attrs.transform = 'matrix(' + matrix.getValues().join(',') + ')'; + } + } + return attrs; + } + + function exportGroup(item, options) { + var attrs = getTransform(item), + children = item._children; + var node = createElement('g', attrs); + for (var i = 0, l = children.length; i < l; i++) { + var child = children[i]; + var childNode = exportSVG(child, options); + if (childNode) { + if (child.isClipMask()) { + var clip = createElement('clipPath'); + clip.appendChild(childNode); + setDefinition(child, clip, 'clip'); + setAttributes(node, { + 'clip-path': 'url(#' + clip.id + ')' + }); + } else { + node.appendChild(childNode); + } + } + } + return node; + } + + function exportRaster(item) { + var attrs = getTransform(item, true), + size = item.getSize(); + attrs.x -= size.width / 2; + attrs.y -= size.height / 2; + attrs.width = size.width; + attrs.height = size.height; + attrs.href = item.toDataURL(); + return createElement('image', attrs); + } + + function exportPath(item, options) { + if (options.matchShapes) { + var shape = item.toShape(false); + if (shape) + return exportShape(shape, options); + } + var segments = item._segments, + type, + attrs; + if (segments.length === 0) + return null; + if (item.isPolygon()) { + if (segments.length >= 3) { + type = item._closed ? 'polygon' : 'polyline'; + var parts = []; + for(i = 0, l = segments.length; i < l; i++) + parts.push(formatter.point(segments[i]._point)); + attrs = { + points: parts.join(' ') + }; + } else { + type = 'line'; + var first = segments[0]._point, + last = segments[segments.length - 1]._point; + attrs = { + x1: first.x, + y1: first.y, + x2: last.x, + y2: last.y + }; + } + } else { + type = 'path'; + var data = item.getPathData(); + attrs = data && { d: data }; + } + return createElement(type, attrs); + } + + function exportShape(item) { + var type = item._type, + radius = item._radius, + attrs = getTransform(item, true, type !== 'rectangle'); + if (type === 'rectangle') { + type = 'rect'; + var size = item._size, + width = size.width, + height = size.height; + attrs.x -= width / 2; + attrs.y -= height / 2; + attrs.width = width; + attrs.height = height; + if (radius.isZero()) + radius = null; + } + if (radius) { + if (type === 'circle') { + attrs.r = radius; + } else { + attrs.rx = radius.width; + attrs.ry = radius.height; + } + } + return createElement(type, attrs); + } + + function exportCompoundPath(item) { + var attrs = getTransform(item, true); + var data = item.getPathData(); + if (data) + attrs.d = data; + return createElement('path', attrs); + } + + function exportPlacedSymbol(item, options) { + var attrs = getTransform(item, true), + symbol = item.getSymbol(), + symbolNode = getDefinition(symbol, 'symbol'), + definition = symbol.getDefinition(), + bounds = definition.getBounds(); + if (!symbolNode) { + symbolNode = createElement('symbol', { + viewBox: formatter.rectangle(bounds) + }); + symbolNode.appendChild(exportSVG(definition, options)); + setDefinition(symbol, symbolNode, 'symbol'); + } + attrs.href = '#' + symbolNode.id; + attrs.x += bounds.x; + attrs.y += bounds.y; + attrs.width = formatter.number(bounds.width); + attrs.height = formatter.number(bounds.height); + return createElement('use', attrs); + } + + function exportGradient(color) { + var gradientNode = getDefinition(color, 'color'); + if (!gradientNode) { + var gradient = color.getGradient(), + radial = gradient._radial, + origin = color.getOrigin().transform(), + destination = color.getDestination().transform(), + attrs; + if (radial) { + attrs = { + cx: origin.x, + cy: origin.y, + r: origin.getDistance(destination) + }; + var highlight = color.getHighlight(); + if (highlight) { + highlight = highlight.transform(); + attrs.fx = highlight.x; + attrs.fy = highlight.y; + } + } else { + attrs = { + x1: origin.x, + y1: origin.y, + x2: destination.x, + y2: destination.y + }; + } + attrs.gradientUnits = 'userSpaceOnUse'; + gradientNode = createElement( + (radial ? 'radial' : 'linear') + 'Gradient', attrs); + var stops = gradient._stops; + for (var i = 0, l = stops.length; i < l; i++) { + var stop = stops[i], + stopColor = stop._color, + alpha = stopColor.getAlpha(); + attrs = { + offset: stop._rampPoint, + 'stop-color': stopColor.toCSS(true) + }; + if (alpha < 1) + attrs['stop-opacity'] = alpha; + gradientNode.appendChild(createElement('stop', attrs)); + } + setDefinition(color, gradientNode, 'color'); + } + return 'url(#' + gradientNode.id + ')'; + } + + function exportText(item) { + var node = createElement('text', getTransform(item, true)); + node.textContent = item._content; + return node; + } + + var exporters = { + Group: exportGroup, + Layer: exportGroup, + Raster: exportRaster, + Path: exportPath, + Shape: exportShape, + CompoundPath: exportCompoundPath, + PlacedSymbol: exportPlacedSymbol, + PointText: exportText + }; + + function applyStyle(item, node) { + var attrs = {}, + parent = item.getParent(); + + if (item._name != null) + attrs.id = item._name; + + Base.each(SVGStyles, function(entry) { + var get = entry.get, + type = entry.type, + value = item[get](); + if (!parent || !Base.equals(parent[get](), value)) { + if (type === 'color' && value != null) { + var alpha = value.getAlpha(); + if (alpha < 1) + attrs[entry.attribute + '-opacity'] = alpha; + } + attrs[entry.attribute] = value == null + ? 'none' + : type === 'number' + ? formatter.number(value) + : type === 'color' + ? value.gradient + ? exportGradient(value, item) + : value.toCSS(true) + : type === 'array' + ? value.join(',') + : type === 'lookup' + ? entry.toSVG[value] + : value; + } + }); + + if (attrs.opacity === 1) + delete attrs.opacity; + + if (item._visibility != null && !item._visibility) + attrs.visibility = 'hidden'; + + return setAttributes(node, attrs); + } + + var definitions; + function getDefinition(item, type) { + if (!definitions) + definitions = { ids: {}, svgs: {} }; + return item && definitions.svgs[type + '-' + item._id]; + } + + function setDefinition(item, node, type) { + if (!definitions) + getDefinition(); + var id = definitions.ids[type] = (definitions.ids[type] || 0) + 1; + node.id = type + '-' + id; + definitions.svgs[type + '-' + item._id] = node; + } + + function exportDefinitions(node, options) { + var svg = node, + defs = null; + if (definitions) { + svg = node.nodeName.toLowerCase() === 'svg' && node; + for (var i in definitions.svgs) { + if (!defs) { + if (!svg) { + svg = createElement('svg'); + svg.appendChild(node); + } + defs = svg.insertBefore(createElement('defs'), + svg.firstChild); + } + defs.appendChild(definitions.svgs[i]); + } + definitions = null; + } + return options.asString + ? new XMLSerializer().serializeToString(svg) + : svg; + } + + function exportSVG(item, options) { + var exporter = exporters[item._class], + node = exporter && exporter(item, options); + if (node && item._data) { + var data = JSON.stringify(item._data); + if (data !== '{}') + node.setAttribute('data-paper-data', data); + } + return node && applyStyle(item, node); + } + + function setOptions(options) { + if (!options) + options = {}; + formatter = new Formatter(options.precision); + return options; + } + + Item.inject({ + exportSVG: function(options) { + options = setOptions(options); + return exportDefinitions(exportSVG(this, options), options); + } + }); + + Project.inject({ + exportSVG: function(options) { + options = setOptions(options); + var layers = this.layers, + size = this.getView().getSize(), + node = createElement('svg', { + x: 0, + y: 0, + width: size.width, + height: size.height, + version: '1.1', + xmlns: 'http://www.w3.org/2000/svg', + 'xmlns:xlink': 'http://www.w3.org/1999/xlink' + }); + for (var i = 0, l = layers.length; i < l; i++) + node.appendChild(exportSVG(layers[i], options)); + return exportDefinitions(node, options); + } + }); +}; + +new function() { + + function getValue(node, name, isString, allowNull) { + var namespace = SVGNamespaces[name], + value = namespace + ? node.getAttributeNS(namespace, name) + : node.getAttribute(name); + if (value === 'null') + value = null; + return value == null + ? allowNull + ? null + : isString + ? '' + : 0 + : isString + ? value + : parseFloat(value); + } + + function getPoint(node, x, y, allowNull) { + x = getValue(node, x, false, allowNull); + y = getValue(node, y, false, allowNull); + return allowNull && (x == null || y == null) ? null + : new Point(x, y); + } + + function getSize(node, w, h, allowNull) { + w = getValue(node, w, false, allowNull); + h = getValue(node, h, false, allowNull); + return allowNull && (w == null || h == null) ? null + : new Size(w, h); + } + + function convertValue(value, type, lookup) { + return value === 'none' + ? null + : type === 'number' + ? parseFloat(value) + : type === 'array' + ? value ? value.split(/[\s,]+/g).map(parseFloat) : [] + : type === 'color' + ? getDefinition(value) || value + : type === 'lookup' + ? lookup[value] + : value; + } + + function importGroup(node, type, isRoot, options) { + var nodes = node.childNodes, + isClip = type === 'clippath', + item = new Group(), + project = item._project, + currentStyle = project._currentStyle, + children = []; + if (!isClip) { + item = applyAttributes(item, node, isRoot); + project._currentStyle = item._style.clone(); + } + for (var i = 0, l = nodes.length; i < l; i++) { + var childNode = nodes[i], + child; + if (childNode.nodeType === 1 + && (child = importSVG(childNode, false, options)) + && !(child instanceof Symbol)) + children.push(child); + } + item.addChildren(children); + if (isClip) + item = applyAttributes(item.reduce(), node, isRoot); + project._currentStyle = currentStyle; + if (isClip || type === 'defs') { + item.remove(); + item = null; + } + return item; + } + + function importPoly(node, type) { + var coords = node.getAttribute('points').match( + /[+-]?(?:\d*\.\d+|\d+\.?)(?:[eE][+-]?\d+)?/g), + points = []; + for (var i = 0, l = coords.length; i < l; i += 2) + points.push(new Point( + parseFloat(coords[i]), + parseFloat(coords[i + 1]))); + var path = new Path(points); + if (type === 'polygon') + path.closePath(); + return path; + } + + function importPath(node) { + var data = node.getAttribute('d'), + param = { pathData: data }; + return data.match(/m/gi).length > 1 || /z\S+/i.test(data) + ? new CompoundPath(param) + : new Path(param); + } + + function importGradient(node, type) { + var id = (getValue(node, 'href', true) || '').substring(1), + isRadial = type === 'radialgradient', + gradient; + if (id) { + gradient = definitions[id].getGradient(); + } else { + var nodes = node.childNodes, + stops = []; + for (var i = 0, l = nodes.length; i < l; i++) { + var child = nodes[i]; + if (child.nodeType === 1) + stops.push(applyAttributes(new GradientStop(), child)); + } + gradient = new Gradient(stops, isRadial); + } + var origin, destination, highlight; + if (isRadial) { + origin = getPoint(node, 'cx', 'cy'); + destination = origin.add(getValue(node, 'r'), 0); + highlight = getPoint(node, 'fx', 'fy', true); + } else { + origin = getPoint(node, 'x1', 'y1'); + destination = getPoint(node, 'x2', 'y2'); + } + applyAttributes( + new Color(gradient, origin, destination, highlight), node); + return null; + } + + var importers = { + '#document': function (node, type, isRoot, options) { + var nodes = node.childNodes; + for (var i = 0, l = nodes.length; i < l; i++) { + var child = nodes[i]; + if (child.nodeType === 1) { + var next = child.nextSibling; + document.body.appendChild(child); + var item = importSVG(child, isRoot, options); + if (next) { + node.insertBefore(child, next); + } else { + node.appendChild(child); + } + return item; + } + } + }, + g: importGroup, + svg: importGroup, + clippath: importGroup, + polygon: importPoly, + polyline: importPoly, + path: importPath, + lineargradient: importGradient, + radialgradient: importGradient, + + image: function (node) { + var raster = new Raster(getValue(node, 'href', true)); + raster.attach('load', function() { + var size = getSize(node, 'width', 'height'); + this.setSize(size); + var center = this._matrix._transformPoint( + getPoint(node, 'x', 'y').add(size.divide(2))); + this.translate(center); + }); + return raster; + }, + + symbol: function(node, type, isRoot, options) { + return new Symbol(importGroup(node, type, isRoot, options), true); + }, + + defs: importGroup, + + use: function(node) { + var id = (getValue(node, 'href', true) || '').substring(1), + definition = definitions[id], + point = getPoint(node, 'x', 'y'); + return definition + ? definition instanceof Symbol + ? definition.place(point) + : definition.clone().translate(point) + : null; + }, + + circle: function(node) { + return new Shape.Circle(getPoint(node, 'cx', 'cy'), + getValue(node, 'r')); + }, + + ellipse: function(node) { + return new Shape.Ellipse({ + center: getPoint(node, 'cx', 'cy'), + radius: getSize(node, 'rx', 'ry') + }); + }, + + rect: function(node) { + var point = getPoint(node, 'x', 'y'), + size = getSize(node, 'width', 'height'), + radius = getSize(node, 'rx', 'ry'); + return new Shape.Rectangle(new Rectangle(point, size), radius); + }, + + line: function(node) { + return new Path.Line(getPoint(node, 'x1', 'y1'), + getPoint(node, 'x2', 'y2')); + }, + + text: function(node) { + var text = new PointText(getPoint(node, 'x', 'y') + .add(getPoint(node, 'dx', 'dy'))); + text.setContent(node.textContent.trim() || ''); + return text; + } + }; + + function applyTransform(item, value, name, node) { + var transforms = (node.getAttribute(name) || '').split(/\)\s*/g), + matrix = new Matrix(); + for (var i = 0, l = transforms.length; i < l; i++) { + var transform = transforms[i]; + if (!transform) + break; + var parts = transform.split('('), + command = parts[0], + v = parts[1].split(/[\s,]+/g); + for (var j = 0, m = v.length; j < m; j++) + v[j] = parseFloat(v[j]); + switch (command) { + case 'matrix': + matrix.concatenate( + new Matrix(v[0], v[1], v[2], v[3], v[4], v[5])); + break; + case 'rotate': + matrix.rotate(v[0], v[1], v[2]); + break; + case 'translate': + matrix.translate(v[0], v[1]); + break; + case 'scale': + matrix.scale(v); + break; + case 'skewX': + matrix.skew(v[0], 0); + break; + case 'skewY': + matrix.skew(0, v[0]); + break; + } + } + item.transform(matrix); + } + + function applyOpacity(item, value, name) { + var color = item[name === 'fill-opacity' ? 'getFillColor' + : 'getStrokeColor'](); + if (color) + color.setAlpha(parseFloat(value)); + } + + var attributes = Base.each(SVGStyles, function(entry) { + this[entry.attribute] = function(item, value) { + item[entry.set](convertValue(value, entry.type, entry.fromSVG)); + if (entry.type === 'color' && item instanceof Shape) { + var color = item[entry.get](); + if (color) + color.transform(new Matrix().translate( + item.getPosition(true).negate())); + } + }; + }, { + id: function(item, value) { + definitions[value] = item; + if (item.setName) + item.setName(value); + }, + + 'clip-path': function(item, value) { + var clip = getDefinition(value); + if (clip) { + clip = clip.clone(); + clip.setClipMask(true); + if (item instanceof Group) { + item.insertChild(0, clip); + } else { + return new Group(clip, item); + } + } + }, + + gradientTransform: applyTransform, + transform: applyTransform, + + 'fill-opacity': applyOpacity, + 'stroke-opacity': applyOpacity, + + visibility: function(item, value) { + item.setVisible(value === 'visible'); + }, + + 'stop-color': function(item, value) { + if (item.setColor) + item.setColor(value); + }, + + 'stop-opacity': function(item, value) { + if (item._color) + item._color.setAlpha(parseFloat(value)); + }, + + offset: function(item, value) { + var percentage = value.match(/(.*)%$/); + item.setRampPoint(percentage + ? percentage[1] / 100 + : parseFloat(value)); + }, + + viewBox: function(item, value, name, node, styles) { + var rect = new Rectangle(convertValue(value, 'array')), + size = getSize(node, 'width', 'height', true); + if (item instanceof Group) { + var scale = size ? rect.getSize().divide(size) : 1, + matrix = new Matrix().translate(rect.getPoint()).scale(scale); + item.transform(matrix.inverted()); + } else if (item instanceof Symbol) { + if (size) + rect.setSize(size); + var clip = getAttribute(node, 'overflow', styles) != 'visible', + group = item._definition; + if (clip && !rect.contains(group.getBounds())) { + clip = new Shape.Rectangle(rect).transform(group._matrix); + clip.setClipMask(true); + group.addChild(clip); + } + } + } + }); + + function getAttribute(node, name, styles) { + var attr = node.attributes[name], + value = attr && attr.value; + if (!value) { + var style = Base.camelize(name); + value = node.style[style]; + if (!value && styles.node[style] !== styles.parent[style]) + value = styles.node[style]; + } + return !value + ? undefined + : value === 'none' + ? null + : value; + } + + function applyAttributes(item, node, isRoot) { + var styles = { + node: DomElement.getStyles(node) || {}, + parent: !isRoot && DomElement.getStyles(node.parentNode) || {} + }; + Base.each(attributes, function(apply, name) { + var value = getAttribute(node, name, styles); + if (value !== undefined) + item = Base.pick(apply(item, value, name, node, styles), item); + }); + return item; + } + + var definitions = {}; + function getDefinition(value) { + var match = value && value.match(/\((?:#|)([^)']+)/); + return match && definitions[match[1]]; + } + + function importSVG(source, isRoot, options) { + if (!source) + return null; + if (!options) { + options = {}; + } else if (typeof options === 'function') { + options = { onLoad: options }; + } + + var node = source, + scope = paper; + + function onLoadCallback(svg) { + paper = scope; + var item = importSVG(svg, isRoot, options), + onLoad = options.onLoad, + view = scope.project && scope.getView(); + if (onLoad) + onLoad.call(this, item); + view.update(); + } + + if (isRoot) { + if (typeof source === 'string' && !/^.*</.test(source)) { + node = document.getElementById(source); + if (node) { + source = null; + } else { + return Http.request('get', source, onLoadCallback); + } + } else if (typeof File !== 'undefined' && source instanceof File) { + var reader = new FileReader(); + reader.onload = function() { + onLoadCallback(reader.result); + }; + return reader.readAsText(source); + } + } + + if (typeof source === 'string') + node = new DOMParser().parseFromString(source, 'image/svg+xml'); + if (!node.nodeName) + throw new Error('Unsupported SVG source: ' + source); + var type = node.nodeName.toLowerCase(), + importer = importers[type], + item, + data = node.getAttribute && node.getAttribute('data-paper-data'), + settings = scope.settings, + prevApplyMatrix = settings.applyMatrix; + settings.applyMatrix = false; + item = importer && importer(node, type, isRoot, options) || null; + settings.applyMatrix = prevApplyMatrix; + if (item) { + if (!(item instanceof Group)) + item = applyAttributes(item, node, isRoot); + if (options.expandShapes && item instanceof Shape) { + item.remove(); + item = item.toPath(); + } + if (data) + item._data = JSON.parse(data); + } + if (isRoot) + definitions = {}; + return item; + } + + Item.inject({ + importSVG: function(node, options) { + return this.addChild(importSVG(node, true, options)); + } + }); + + Project.inject({ + importSVG: function(node, options) { + this.activate(); + return importSVG(node, true, options); + } + }); +}; + +Base.exports.PaperScript = (function() { + var exports, define, + scope = this; +!function(e,r){return"object"==typeof exports&&"object"==typeof module?r(exports):"function"==typeof define&&define.amd?define(["exports"],r):(r(e.acorn||(e.acorn={})),void 0)}(this,function(e){"use strict";function r(e){fr=e||{};for(var r in hr)Object.prototype.hasOwnProperty.call(fr,r)||(fr[r]=hr[r]);mr=fr.sourceFile||null}function t(e,r){var t=vr(pr,e);r+=" ("+t.line+":"+t.column+")";var n=new SyntaxError(r);throw n.pos=e,n.loc=t,n.raisedAt=br,n}function n(e){function r(e){if(1==e.length)return t+="return str === "+JSON.stringify(e[0])+";";t+="switch(str){";for(var r=0;r<e.length;++r)t+="case "+JSON.stringify(e[r])+":";t+="return true}return false;"}e=e.split(" ");var t="",n=[];e:for(var a=0;a<e.length;++a){for(var o=0;o<n.length;++o)if(n[o][0].length==e[a].length){n[o].push(e[a]);continue e}n.push([e[a]])}if(n.length>3){n.sort(function(e,r){return 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left[handler](right); + return operator === '!=' ? !res : res; + } + switch (operator) { + case '+': return left + right; + case '-': return left - right; + case '*': return left * right; + case '/': return left / right; + case '%': return left % right; + case '==': return left == right; + case '!=': return left != right; + } + } + + function $_(operator, value) { + var handler = unaryOperators[operator]; + if (handler && value && value[handler]) + return value[handler](); + switch (operator) { + case '+': return +value; + case '-': return -value; + } + } + + function compile(code) { + + var insertions = []; + + function getOffset(offset) { + for (var i = 0, l = insertions.length; i < l; i++) { + var insertion = insertions[i]; + if (insertion[0] >= offset) + break; + offset += insertion[1]; + } + return offset; + } + + function getCode(node) { + return code.substring(getOffset(node.range[0]), + getOffset(node.range[1])); + } + + function replaceCode(node, str) { + var start = getOffset(node.range[0]), + end = getOffset(node.range[1]), + insert = 0; + for (var i = insertions.length - 1; i >= 0; i--) { + if (start > insertions[i][0]) { + insert = i + 1; + break; + } + } + insertions.splice(insert, 0, [start, str.length - end + start]); + code = code.substring(0, start) + str + code.substring(end); + } + + function walkAST(node, parent) { + if (!node) + return; + for (var key in node) { + if (key === 'range') + continue; + var value = node[key]; + if (Array.isArray(value)) { + for (var i = 0, l = value.length; i < l; i++) + walkAST(value[i], node); + } else if (value && typeof value === 'object') { + walkAST(value, node); + } + } + switch (node && node.type) { + case 'UnaryExpression': + if (node.operator in unaryOperators + && node.argument.type !== 'Literal') { + var arg = getCode(node.argument); + replaceCode(node, '$_("' + node.operator + '", ' + + arg + ')'); + } + break; + case 'BinaryExpression': + if (node.operator in binaryOperators + && node.left.type !== 'Literal') { + var left = getCode(node.left), + right = getCode(node.right); + replaceCode(node, '_$_(' + left + ', "' + node.operator + + '", ' + right + ')'); + } + break; + case 'UpdateExpression': + case 'AssignmentExpression': + if (!(parent && ( + parent.type === 'ForStatement' + || parent.type === 'BinaryExpression' + && /^[=!<>]/.test(parent.operator) + || parent.type === 'MemberExpression' + && parent.computed))) { + if (node.type === 'UpdateExpression') { + if (!node.prefix) { + var arg = getCode(node.argument); + replaceCode(node, arg + ' = _$_(' + arg + ', "' + + node.operator[0] + '", 1)'); + } + } else { + if (/^.=$/.test(node.operator) + && node.left.type !== 'Literal') { + var left = getCode(node.left), + right = getCode(node.right); + replaceCode(node, left + ' = _$_(' + left + ', "' + + node.operator[0] + '", ' + right + ')'); + } + } + } + break; + } + } + walkAST(scope.acorn.parse(code, { ranges: true })); + return code; + } + + function execute(code, scope) { + paper = scope; + var view = scope.getView(), + tool = /\s+on(?:Key|Mouse)(?:Up|Down|Move|Drag)\b/.test(code) + ? new Tool() + : null, + toolHandlers = tool ? tool._events : [], + handlers = ['onFrame', 'onResize'].concat(toolHandlers), + params = [], + args = [], + func; + code = compile(code); + function expose(scope, hidden) { + for (var key in scope) { + if ((hidden || !/^_/.test(key)) && new RegExp( + '\\b' + key.replace(/\$/g, '\\$') + '\\b').test(code)) { + params.push(key); + args.push(scope[key]); + } + } + } + expose({ _$_: _$_, $_: $_, view: view, tool: tool }, true); + expose(scope); + handlers = Base.each(handlers, function(key) { + if (new RegExp('\\s+' + key + '\\b').test(code)) { + params.push(key); + this.push(key + ': ' + key); + } + }, []).join(', '); + if (handlers) + code += '\nreturn { ' + handlers + ' };'; + var firefox = window.InstallTrigger; + if (firefox || window.chrome) { + var script = document.createElement('script'), + head = document.head; + if (firefox) + code = '\n' + code; + script.appendChild(document.createTextNode( + 'paper._execute = function(' + params + ') {' + code + '\n}' + )); + head.appendChild(script); + func = paper._execute; + delete paper._execute; + head.removeChild(script); + } else { + func = Function(params, code); + } + var res = func.apply(scope, args) || {}; + Base.each(toolHandlers, function(key) { + var value = res[key]; + if (value) + tool[key] = value; + }); + if (view) { + if (res.onResize) + view.setOnResize(res.onResize); + view.fire('resize', { + size: view.size, + delta: new Point() + }); + if (res.onFrame) + view.setOnFrame(res.onFrame); + view.update(); + } + } + + function load() { + Base.each(document.getElementsByTagName('script'), function(script) { + if (/^text\/(?:x-|)paperscript$/.test(script.type) + && !script.getAttribute('data-paper-ignore')) { + var canvas = PaperScope.getAttribute(script, 'canvas'), + scope = PaperScope.get(canvas) + || new PaperScope(script).setup(canvas), + src = script.src; + if (src) { + Http.request('get', src, function(code) { + execute(code, scope); + }); + } else { + execute(script.innerHTML, scope); + } + script.setAttribute('data-paper-ignore', true); + } + }, this); + } + + if (document.readyState === 'complete') { + setTimeout(load); + } else { + DomEvent.add(window, { load: load }); + } + + return { + compile: compile, + execute: execute, + load: load, + lineNumberBase: 0 + }; + +}).call(this); + +paper = new (PaperScope.inject(Base.exports, { + enumerable: true, + Base: Base, + Numerical: Numerical, + DomElement: DomElement, + DomEvent: DomEvent, + Http: Http, + Key: Key +}))(); + +if (typeof define === 'function' && define.amd) + define('paper', paper); + +return paper; +}; |