/**************************************************************************** * NxWidgets/libnxwidgets/include/cradiobutton.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_CRADIOBUTTON_HXX #define __INCLUDE_CRADIOBUTTON_HXX /**************************************************************************** * Included Files ****************************************************************************/ #include #include #include #include #include #include "cbutton.hxx" #include "cwidgetstyle.hxx" /**************************************************************************** * Pre-Processor Definitions ****************************************************************************/ /**************************************************************************** * Implementation Classes ****************************************************************************/ #if defined(__cplusplus) namespace NXWidgets { class CWidgetControl; class CRadioButtonGroup; /** * Represents a radio button. Radio buttons can only exist as part of a * CRadioButtonGroup class, and should not be instantiated individually. * Radio buttons are tri-state - off, on and "mu". * The mu state cannot be enabled by a user - it can only be set by the * developer. */ class CRadioButton : public CButton { public: /** * Enum listing all possible radio button states. */ enum RadioButtonState { RADIO_BUTTON_STATE_OFF = 0, /**< Radio button is off */ RADIO_BUTTON_STATE_ON = 1, /**< Radio button is on */ RADIO_BUTTON_STATE_MU = 2 /**< Radio button is in the third state */ }; protected: RadioButtonState m_state; /**< The state of the 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); /** * Sets the radiobutton's state to "on". * * @param x The x coordinate of the click. * @param y The y coordinate of the click. */ virtual void onClick(nxgl_coord_t x, nxgl_coord_t y); /** * Destructor. */ virtual inline ~CRadioButton() { } /** * Copy constructor is protected to prevent usage. */ inline CRadioButton(const CRadioButton &radioButton) : CButton(radioButton) { } public: /** * Constructor. * * @param pWidgetControl The controlling widget for the display. * @param x The x coordinate of the radio button, relative to its * parent. * @param y The y coordinate of the radio button, relative to its * parent. * @param width The width of the radio button. * @param height The height of the radio button. * @param style The style that the widget should use. If this is not * specified, the widget will use the values stored in the global * defaultCWidgetStyle object. The widget will copy the properties of * the style into its own internal style object. */ CRadioButton(CWidgetControl *pWidgetControl, nxgl_coord_t x, nxgl_coord_t y, nxgl_coord_t width, nxgl_coord_t height, CWidgetStyle *style = (CWidgetStyle *)NULL); /** * Get the current state of the radio button. * * @return The state of the radio button. */ virtual inline RadioButtonState getState(void) { return m_state; } /** * Set the state of the radio button. * * @param state The new radio button state. */ virtual void setState(RadioButtonState state); }; } #endif // __cplusplus #endif // __INCLUDE_CRADIOBUTTON_HXX