/**************************************************************************** * NxWidgets/libnxwidgets/src/cradiobutton.cxx * * Copyright (C) 2012 Gregory Nutt. All rights reserved. * Author: Gregory Nutt * * 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 #include #include #include #include #include "cradiobuttongroup.hxx" #include "cradiobutton.hxx" #include "cgraphicsport.hxx" /**************************************************************************** * Pre-Processor Definitions ****************************************************************************/ /**************************************************************************** * CLabel Method Implementations ****************************************************************************/ using namespace NXWidgets; /** * Constructor. Note that the group determines its width and height * from the position and dimensions of its children. * * @param pWidgetControl The controlling widget for the display. * @param x The x coordinate of the group. * @param y The y coordinate of the group. * @param style The style that the button should use. If this is not * specified, the button will use the global default widget * style. */ CRadioButtonGroup::CRadioButtonGroup(CWidgetControl *pWidgetControl, nxgl_coord_t x, nxgl_coord_t y, CWidgetStyle *style) : CNxWidget(pWidgetControl, x, y, 0, 0, WIDGET_BORDERLESS, style) { m_widgetControl = pWidgetControl; m_selectedWidget = (CRadioButton *)NULL; } /** * Simple method for adding a new radio button to the group. * This should be used in preference to the usual addWidget() method, * as this method automatically resizes the group. * * @param x The x coordinate of the new button, relative to this * widget. * @param y The y coordinate of the new button, relative to this * widget. * @param width The width of the new button. * @param height The height of the new button. */ CRadioButton *CRadioButtonGroup::newRadioButton(nxgl_coord_t x, nxgl_coord_t y, nxgl_coord_t width, nxgl_coord_t height) { CRadioButton *newButton = new CRadioButton(m_widgetControl, x, y, width, height, &m_style); newButton->addWidgetEventHandler(this); addWidget(newButton); // Do we need to resize? nxgl_coord_t newWidth = getWidth(); nxgl_coord_t newHeight = getHeight(); if (newWidth < x + width) { newWidth = x + width; } if (newHeight < y + height) { newHeight = y + height; } resize(newWidth, newHeight); return newButton; } /** * Gets a pointer to the selected widget. * * @return Pointer to the selected widget. */ const CRadioButton *CRadioButtonGroup::getSelectedWidget(void) const { return (CRadioButton *)m_selectedWidget; } /** * Gets the index of the selected widget. * * @return The index of the selected widget. */ const int CRadioButtonGroup::getSelectedIndex(void) const { for (int i = 0; i < m_children.size(); i++) { if (((CRadioButton*)m_children[i]) == m_selectedWidget) { return i; } } // Nothing selected return -1; } /** * Sets the selected radio button to the supplied widget. * * @param widget The radio button to select. */ void CRadioButtonGroup::setSelectedWidget(CRadioButton* widget) { if (m_selectedWidget != widget) { if (m_selectedWidget != NULL) { m_selectedWidget->setState(CRadioButton::RADIO_BUTTON_STATE_OFF); } m_selectedWidget = widget; if (m_selectedWidget != NULL) { m_selectedWidget->setState(CRadioButton::RADIO_BUTTON_STATE_ON); } m_widgetEventHandlers->raiseValueChangeEvent(); } } /** * Selects the widget at the specified index. * * @param index The index of the widget to select. */ void CRadioButtonGroup::setSelectedIndex(int index) { if (index < m_children.size()) { setSelectedWidget((CRadioButton*)m_children[index]); m_widgetEventHandlers->raiseValueChangeEvent(); } } /** * Insert the dimensions that this widget wants to have into the rect * passed in as a parameter. All coordinates are relative to the * widget's parent. Value is based on the length of the largest string * in the set of options. * * @param rect Reference to a rect to populate with data. */ void CRadioButtonGroup::getPreferredDimensions(CRect& rect) const { nxgl_coord_t width = 0; nxgl_coord_t height = 0; if (!m_flags.borderless) { width = m_borderSize.left + m_borderSize.right; height = m_borderSize.top + m_borderSize.bottom; } nxgl_coord_t widgetX = 0; nxgl_coord_t widgetY = 0; nxgl_coord_t maxX = 0; nxgl_coord_t maxY = 0; // Locate largest x and y coords within children for (int i = 0; i < m_children.size(); ++i) { widgetX = m_children[i]->getX() + m_children[i]->getWidth(); widgetY = m_children[i]->getY() + m_children[i]->getHeight(); if (widgetX > maxX) { maxX = widgetX; } if (widgetY > maxY) { maxY = widgetY; } } rect.setX(m_rect.getX()); rect.setY(m_rect.getY()); rect.setWidth(width + maxX - getX()); rect.setHeight(height + maxY - getY()); } /** * Handle a mouse click event. * * @param e The event data. */ void CRadioButtonGroup::handleClickEvent(const CWidgetEventArgs &e) { m_widgetEventHandlers->raiseClickEvent(e.getX(), e.getY()); } /** * Handle a mouse double-click event. * * @param e The event data. */ void CRadioButtonGroup::handleDoubleClickEvent(const CWidgetEventArgs &e) { m_widgetEventHandlers->raiseDoubleClickEvent(e.getX(), e.getY()); } /** * Handle a mouse button release event that occurred within the bounds of * the source widget. * @param e The event data. */ void CRadioButtonGroup::handleReleaseEvent(const CWidgetEventArgs &e) { m_widgetEventHandlers->raiseReleaseEvent(e.getX(), e.getY()); } /** * Handle a mouse button release event that occurred outside the bounds of * the source widget. * * @param e The event data. */ void CRadioButtonGroup::handleReleaseOutsideEvent(const CWidgetEventArgs &e) { // Child raised a release outside event, but we need to raise a different // event if the release occurred within the bounds of this parent widget if (checkCollision(e.getX(), e.getY())) { m_widgetEventHandlers->raiseReleaseEvent(e.getX(), e.getY()); } else { m_widgetEventHandlers->raiseReleaseOutsideEvent(e.getX(), e.getY()); } } /** * Draw the area of this widget that falls within the clipping region. * Called by the redraw() function to draw all visible regions. * @param port The CGraphicsPort to draw to. * @see redraw() */ void CRadioButtonGroup::drawContents(CGraphicsPort *port) { port->drawFilledRect(getX(), getY(), getWidth(), getHeight(), getBackgroundColor()); }