/**************************************************************************** * NxWidgets/libnxwidgets/include/cradiobuttongroup.hxx * * 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. * ****************************************************************************/ #ifndef __INCLUDE_CRADIOBUTTONGROUP_HXX #define __INCLUDE_CRADIOBUTTONGROUP_HXX /**************************************************************************** * Included Files ****************************************************************************/ #include #include #include #include #include #include "cnxwidget.hxx" #include "cbutton.hxx" #include "cwidgetstyle.hxx" #include "cwidgeteventhandler.hxx" /**************************************************************************** * Pre-Processor Definitions ****************************************************************************/ /**************************************************************************** * Implementation Classes ****************************************************************************/ #if defined(__cplusplus) namespace NXWidgets { class CWidgetControl; class CRadioButton; /** * Container class that holds radio button widgets and tracks their status. * The group provides an easy way to determine which radio button is * selected. Note that, in order to set the "mu" state for a radio button, * it is necessary to set the state via the radio button, not the group. */ class CRadioButtonGroup : public CNxWidget, public CWidgetEventHandler { protected: CWidgetControl *m_pWidgetControl; /**< The controlling widget */ CRadioButton *m_selectedWidget; /**< Pointer to the currently selected radio button */ /** * 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() */ virtual void drawContents(CGraphicsPort* port); /** * Copy constructor is protected to prevent usage. */ inline CRadioButtonGroup(const CRadioButtonGroup &radioButtonGroup) : CNxWidget(radioButtonGroup) { } public: /** * 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(CWidgetControl *pWidgetControl, nxgl_coord_t x, nxgl_coord_t y, CWidgetStyle *style = (CWidgetStyle *)NULL); /** * Destructor. */ ~CRadioButtonGroup(void) { } /** * 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 *newRadioButton(nxgl_coord_t x, nxgl_coord_t y, nxgl_coord_t width, nxgl_coord_t height); /** * Gets a pointer to the selected widget. * * @return Pointer to the selected widget. */ virtual const CRadioButton *getSelectedWidget(void) const; /** * Gets the index of the selected widget. * * @return The index of the selected widget. */ virtual const int getSelectedIndex(void) const; /** * Sets the selected radio button to the supplied widget. * * @param widget The radio button to select. */ virtual void setSelectedWidget(CRadioButton *widget); /** * Selects the widget at the specified index. * * @param index The index of the widget to select. */ virtual void setSelectedIndex(int index); /** * 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. */ virtual void getPreferredDimensions(CRect &rect) const; /** * Handle a mouse click event. * * @param e The event data. */ virtual void handleClickEvent(const CWidgetEventArgs &e); /** * Handle a mouse double-click event. * * @param e The event data. */ virtual void handleDoubleClickEvent(const CWidgetEventArgs &e); /** * Handle a mouse button release event that occurred within the bounds of * the source widget. * @param e The event data. */ virtual void handleReleaseEvent(const CWidgetEventArgs &e); /** * Handle a mouse button release event that occurred outside the bounds of * the source widget. * * @param e The event data. */ virtual void handleReleaseOutsideEvent(const CWidgetEventArgs &e); }; } #endif // __cplusplus #endif // __INCLUDE_CRADIOBUTTONGROUP_HXX