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Diffstat (limited to 'NxWidgets/libnxwidgets/src/cwidgeteventhandlerlist.cxx')
| -rw-r--r-- | NxWidgets/libnxwidgets/src/cwidgeteventhandlerlist.cxx | 606 |
1 files changed, 606 insertions, 0 deletions
diff --git a/NxWidgets/libnxwidgets/src/cwidgeteventhandlerlist.cxx b/NxWidgets/libnxwidgets/src/cwidgeteventhandlerlist.cxx new file mode 100644 index 000000000..48b762d0d --- /dev/null +++ b/NxWidgets/libnxwidgets/src/cwidgeteventhandlerlist.cxx @@ -0,0 +1,606 @@ +/**************************************************************************** + * NxWidgets/libnxwidgets/src/cwidgeteventhandlerlist.cxx + * + * Copyright (C) 2012 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX, NxWidgets, nor the names of its contributors + * me be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + **************************************************************************** + * + * Portions of this package derive from Woopsi (http://woopsi.org/) and + * portions are original efforts. It is difficult to determine at this + * point what parts are original efforts and which parts derive from Woopsi. + * However, in any event, the work of Antony Dzeryn will be acknowledged + * in most NxWidget files. Thanks Antony! + * + * Copyright (c) 2007-2011, Antony Dzeryn + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the names "Woopsi", "Simian Zombie" nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY Antony Dzeryn ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL Antony Dzeryn BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <stdint.h> +#include <stdbool.h> + +#include "cnxwidget.hxx" +#include "cwidgeteventhandler.hxx" +#include "cwidgeteventargs.hxx" + +/**************************************************************************** + * Pre-Processor Definitions + ****************************************************************************/ + +#define DOUBLE_CLICK_BOUNDS 10 + +/**************************************************************************** + * Method Implementations + ****************************************************************************/ + +using namespace NXWidgets; + +/** + * Constructor. + * + * @param widget The owning widget. + */ + +CWidgetEventHandlerList::CWidgetEventHandlerList(CNxWidget *widget) +{ + m_widget = widget; + m_isEnabled = true; +} + +/** + * Check if the object raises events or not. + * + * @return True if events are enabled. + */ + +const bool CWidgetEventHandlerList::isEnabled(void) const +{ + return m_isEnabled && !m_widget->isDeleted(); +} + +/** + * Adds a widget event handler. The event handler will receive + * all events raised by this object. + * @param eventHandler A pointer to the event handler. + */ + +void CWidgetEventHandlerList::addWidgetEventHandler(CWidgetEventHandler *eventHandler) +{ + // Prevent insertion if the handler already exists + + for (int i = 0; i < m_widgetEventHandlers.size(); ++i) + { + if (m_widgetEventHandlers.at(i) == eventHandler) + { + return; + } + } + + // Add the new handler + + m_widgetEventHandlers.push_back(eventHandler); +} + +/** + * Remove a widget event handler. + * + * @param eventHandler A pointer to the event handler to remove. + */ + +void CWidgetEventHandlerList::removeWidgetEventHandler(CWidgetEventHandler *eventHandler) +{ + for (int i = 0; i < m_widgetEventHandlers.size(); ++i) + { + if (m_widgetEventHandlers.at(i) == eventHandler) + { + m_widgetEventHandlers.erase(i); + return; + } + } +} + +/** + * Raise a click event to the event handler. + * + * @param x The x coordinate of the click. + * @param y The y coordinate of the click. + */ + +void CWidgetEventHandlerList::raiseClickEvent(nxgl_coord_t x, nxgl_coord_t y) +{ + if (isEnabled()) + { + CWidgetEventArgs e(m_widget, x, y, 0, 0, KEY_CODE_NONE); + + for (int i = 0; i < m_widgetEventHandlers.size(); ++i) + { + m_widgetEventHandlers.at(i)->handleClickEvent(e); + } + } +} + +/** + * Raise a double-click event to the event handler. + * + * @param x The x coordinate of the click. + * @param y The y coordinate of the click. + */ + +void CWidgetEventHandlerList::raiseDoubleClickEvent(nxgl_coord_t x, nxgl_coord_t y) +{ + if (isEnabled()) + { + CWidgetEventArgs e(m_widget, x, y, 0, 0, KEY_CODE_NONE); + + for (int i = 0; i < m_widgetEventHandlers.size(); ++i) + { + m_widgetEventHandlers.at(i)->handleDoubleClickEvent(e); + } + } +} + +/** + * Raise a mouse release event to the event handler. + * + * @param x The x coordinate of the release. + * @param y The y coordinate of the release. + */ + +void CWidgetEventHandlerList::raiseReleaseEvent(nxgl_coord_t x, nxgl_coord_t y) +{ + if (isEnabled()) + { + CWidgetEventArgs e(m_widget, x, y, 0, 0, KEY_CODE_NONE); + + for (int i = 0; i < m_widgetEventHandlers.size(); ++i) + { + m_widgetEventHandlers.at(i)->handleReleaseEvent(e); + } + } +} + +/** + * Raise a mouse release-outside event to the event handler. + * + * @param x The x coordinate of the release. + * @param y The y coordinate of the release. + */ + +void CWidgetEventHandlerList::raiseReleaseOutsideEvent(nxgl_coord_t x, nxgl_coord_t y) +{ + if (isEnabled()) + { + CWidgetEventArgs e(m_widget, x, y, 0, 0, KEY_CODE_NONE); + + for (int i = 0; i < m_widgetEventHandlers.size(); ++i) + { + m_widgetEventHandlers.at(i)->handleReleaseOutsideEvent(e); + } + } +} + +/** + * Raise a mouse drag event to the event handler. + * + * @param x The x coordinate of the mouse when the drag started. + * @param y The y coordinate of the mouse when the drag started. + * @param vX The horizontal distance dragged. + * @param vY The vertical distance dragged. + */ + +void CWidgetEventHandlerList::raiseDragEvent(nxgl_coord_t x, nxgl_coord_t y, + nxgl_coord_t vX, nxgl_coord_t vY) +{ + if (isEnabled()) + { + CWidgetEventArgs e(m_widget, x, y, vX, vY, KEY_CODE_NONE); + + for (int i = 0; i < m_widgetEventHandlers.size(); ++i) + { + m_widgetEventHandlers.at(i)->handleDragEvent(e); + } + } +} + +/** + * Raise a widget drop event to the event handler. + * + * @param x The x coordinate of the mouse when the drop occurred. + * @param y The y coordinate of the mouse when the drop occurred. + */ + +void CWidgetEventHandlerList::raiseDropEvent(nxgl_coord_t x, nxgl_coord_t y) +{ + if (isEnabled()) + { + CWidgetEventArgs e(m_widget, x, y, 0, 0, KEY_CODE_NONE); + + for (int i = 0; i < m_widgetEventHandlers.size(); ++i) + { + m_widgetEventHandlers.at(i)->handleDropEvent(e); + } + } +} + +/** + * Raise a move forward event to the event handler. + */ + +void CWidgetEventHandlerList::raiseMoveForwardEvent(void) +{ + if (isEnabled()) + { + CWidgetEventArgs e(m_widget, 0, 0, 0, 0, KEY_CODE_NONE); + + for (int i = 0; i < m_widgetEventHandlers.size(); ++i) + { + m_widgetEventHandlers.at(i)->handleMoveForwardEvent(e); + } + } +} + +/** + * Raise a move backward event to the event handler. + */ + +void CWidgetEventHandlerList::raiseMoveBackwardEvent(void) +{ + if (isEnabled()) + { + CWidgetEventArgs e(m_widget, 0, 0, 0, 0, KEY_CODE_NONE); + + for (int i = 0; i < m_widgetEventHandlers.size(); ++i) + { + m_widgetEventHandlers.at(i)->handleMoveBackwardEvent(e); + } + } +} + +/** + * Raise a key press event to the event handler. + * + * @param key The code of the key that caused the event. + */ + +void CWidgetEventHandlerList::raiseKeyPressEvent(nxwidget_char_t key) +{ + if (isEnabled()) + { + CWidgetEventArgs e(m_widget, 0, 0, 0, 0, key); + + for (int i = 0; i < m_widgetEventHandlers.size(); ++i) + { + m_widgetEventHandlers.at(i)->handleKeyPressEvent(e); + } + } +} + +/** + * Raise a cursor control event to the event handler. + * + * @param cursorControl The cursor control code that caused the event. + */ + +void CWidgetEventHandlerList::raiseCursorControlEvent(ECursorControl cursorControl) +{ + if (isEnabled()) + { + CWidgetEventArgs e(m_widget, 0, 0, 0, 0, (nxwidget_char_t)cursorControl); + + for (int i = 0; i < m_widgetEventHandlers.size(); ++i) + { + m_widgetEventHandlers.at(i)->handleCursorControlEvent(e); + } + } +} + +/** + * Raise a focus event to the event handler. + */ + +void CWidgetEventHandlerList::raiseFocusEvent(void) +{ + if (isEnabled()) + { + CWidgetEventArgs e(m_widget, 0, 0, 0, 0, KEY_CODE_NONE); + + for (int i = 0; i < m_widgetEventHandlers.size(); ++i) + { + m_widgetEventHandlers.at(i)->handleFocusEvent(e); + } + } +} + +/** + * Raise a blur event to the event handler. + */ + +void CWidgetEventHandlerList::raiseBlurEvent(void) +{ + if (isEnabled()) + { + CWidgetEventArgs e(m_widget, 0, 0, 0, 0, KEY_CODE_NONE); + + for (int i = 0; i < m_widgetEventHandlers.size(); ++i) + { + m_widgetEventHandlers.at(i)->handleBlurEvent(e); + } + } +} + +/** + * Raise a close event to the event handler. + */ + +void CWidgetEventHandlerList::raiseCloseEvent(void) +{ + if (isEnabled()) + { + CWidgetEventArgs e(m_widget, 0, 0, 0, 0, KEY_CODE_NONE); + + for (int i = 0; i < m_widgetEventHandlers.size(); ++i) + { + m_widgetEventHandlers.at(i)->handleCloseEvent(e); + } + } +} + +/** + * Raise a hide event to the event handler. + */ + +void CWidgetEventHandlerList::raiseHideEvent(void) +{ + if (isEnabled()) + { + CWidgetEventArgs e(m_widget, 0, 0, 0, 0, KEY_CODE_NONE); + + for (int i = 0; i < m_widgetEventHandlers.size(); ++i) + { + m_widgetEventHandlers.at(i)->handleHideEvent(e); + } + } +} + +/** + * Raise a show event to the event handler. + */ + +void CWidgetEventHandlerList::raiseShowEvent(void) +{ + if (isEnabled()) + { + CWidgetEventArgs e(m_widget, 0, 0, 0, 0, KEY_CODE_NONE); + + for (int i = 0; i < m_widgetEventHandlers.size(); ++i) + { + m_widgetEventHandlers.at(i)->handleShowEvent(e); + } + } +} + +/** + * Raise a shelve event to the event handler. + */ + +void CWidgetEventHandlerList::raiseShelveEvent(void) +{ + if (isEnabled()) + { + CWidgetEventArgs e(m_widget, 0, 0, 0, 0, KEY_CODE_NONE); + + for (int i = 0; i < m_widgetEventHandlers.size(); ++i) + { + m_widgetEventHandlers.at(i)->handleShelveEvent(e); + } + } +} + +/** + * Raise a unshelve event to the event handler. + */ + +void CWidgetEventHandlerList::raiseUnshelveEvent(void) +{ + if (isEnabled()) + { + CWidgetEventArgs e(m_widget, 0, 0, 0, 0, KEY_CODE_NONE); + + for (int i = 0; i < m_widgetEventHandlers.size(); ++i) + { + m_widgetEventHandlers.at(i)->handleUnshelveEvent(e); + } + } +} + +/** + * Raise an enable event to the event handler. + */ + +void CWidgetEventHandlerList::raiseEnableEvent(void) +{ + if (isEnabled()) + { + CWidgetEventArgs e(m_widget, 0, 0, 0, 0, KEY_CODE_NONE); + + for (int i = 0; i < m_widgetEventHandlers.size(); ++i) + { + m_widgetEventHandlers.at(i)->handleEnableEvent(e); + } + } +} + +/** + * Raise a disable event to the event handler. + */ + +void CWidgetEventHandlerList::raiseDisableEvent(void) +{ + if (isEnabled()) + { + CWidgetEventArgs e(m_widget, 0, 0, 0, 0, KEY_CODE_NONE); + + for (int i = 0; i < m_widgetEventHandlers.size(); ++i) + { + m_widgetEventHandlers.at(i)->handleDisableEvent(e); + } + } +} + +/** + * Raise a value change event to the event handler. + */ + +void CWidgetEventHandlerList::raiseValueChangeEvent(void) +{ + if (isEnabled()) + { + CWidgetEventArgs e(m_widget, 0, 0, 0, 0, KEY_CODE_NONE); + + for (int i = 0; i < m_widgetEventHandlers.size(); ++i) + { + m_widgetEventHandlers.at(i)->handleValueChangeEvent(e); + } + } +} + +/** + * Raise a resize event to the event handler. + * + * @param width The new width of the widget. + * @param height The new height of the widget. + */ + +void CWidgetEventHandlerList::raiseResizeEvent(nxgl_coord_t width, nxgl_coord_t height) +{ + if (isEnabled()) + { + CWidgetEventArgs e(m_widget, 0, 0, 0, 0, KEY_CODE_NONE); + + for (int i = 0; i < m_widgetEventHandlers.size(); ++i) + { + m_widgetEventHandlers.at(i)->handleResizeEvent(e); + } + } +} + +/** + * Raise a move event to the event handler. + * + * @param x The new x coordinate of the widget. + * @param y The new y coordinate of the widget. + * @param vX The horizontal distance moved. + * @param vY The vertical distance moved. + */ + +void CWidgetEventHandlerList::raiseMoveEvent(nxgl_coord_t x, nxgl_coord_t y, + nxgl_coord_t vX, nxgl_coord_t vY) +{ + if (isEnabled()) + { + CWidgetEventArgs e(m_widget, x, y, vX, vY, KEY_CODE_NONE); + + for (int i = 0; i < m_widgetEventHandlers.size(); ++i) + { + m_widgetEventHandlers.at(i)->handleMoveEvent(e); + } + } +} + +/** + * Raise an action event to the event handler. This should be called + * when a widget's purpose has been fulfilled. For example, in the case + * of a button, this event is raised when the button is released within + * its boundaries. The button has produced a valid click, and thus + * fulfilled its purpose, so it needs to raise an "action" event. + */ + +void CWidgetEventHandlerList::raiseActionEvent(void) +{ + if (isEnabled()) + { + CWidgetEventArgs e(m_widget, 0, 0, 0, 0, KEY_CODE_NONE); + + for (int i = 0; i < m_widgetEventHandlers.size(); ++i) + { + m_widgetEventHandlers.at(i)->handleActionEvent(e); + } + } +} + +/** + * Raises a scroll event. Fired when the panel scrolls. + * + * @param vX Horizontal distance scrolled. + * @param vY Vertical distance scrolled. + */ + +void CWidgetEventHandlerList::raiseScrollEvent(nxgl_coord_t vX, nxgl_coord_t vY) +{ + if (isEnabled()) + { + CWidgetEventArgs e(m_widget, 0, 0, vX, vY, KEY_CODE_NONE); + + for (int i = 0; i < m_widgetEventHandlers.size(); ++i) + { + m_widgetEventHandlers.at(i)->handleScrollEvent(e); + } + } +} |