226 lines
7.5 KiB
C++
226 lines
7.5 KiB
C++
/****************************************************************************
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* NxWidgets/libnxwidgets/src/cradiobutton.cxx
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*
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* Copyright (C) 2012 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX, NxWidgets, nor the names of its contributors
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* me be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************
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*
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* Portions of this package derive from Woopsi (http://woopsi.org/) and
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* portions are original efforts. It is difficult to determine at this
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* point what parts are original efforts and which parts derive from Woopsi.
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* However, in any event, the work of Antony Dzeryn will be acknowledged
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* in most NxWidget files. Thanks Antony!
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*
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* Copyright (c) 2007-2011, Antony Dzeryn
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the names "Woopsi", "Simian Zombie" nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY Antony Dzeryn ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL Antony Dzeryn BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <sys/types.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <nuttx/nx/nxglib.h>
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#include "cwidgetcontrol.hxx"
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#include "cradiobutton.hxx"
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#include "cradiobuttongroup.hxx"
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#include "cgraphicsport.hxx"
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#include "cbitmap.hxx"
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#include "glyphs.hxx"
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#include "singletons.hxx"
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/****************************************************************************
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* Pre-Processor Definitions
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****************************************************************************/
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/****************************************************************************
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* CLabel Method Implementations
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****************************************************************************/
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using namespace NXWidgets;
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/**
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* Constructor.
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*
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* @param pWidgetControl The controlling widget for the display.
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* @param x The x coordinate of the radio button, relative to its
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* parent.
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* @param y The y coordinate of the radio button, relative to its
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* parent.
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* @param width The width of the radio button.
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* @param height The height of the radio button.
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* @param style The style that the widget should use. If this is not
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* specified, the widget will use the values stored in the global
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* defaultCWidgetStyle object. The widget will copy the properties of
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* the style into its own internal style object.
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*/
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CRadioButton::CRadioButton(CWidgetControl *pWidgetControl,
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nxgl_coord_t x, nxgl_coord_t y,
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nxgl_coord_t width, nxgl_coord_t height,
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CWidgetStyle *style)
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: CButton(pWidgetControl, x, y, width, height, *NXWidgets::g_nullString, style)
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{
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m_state = RADIO_BUTTON_STATE_OFF;
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m_flags.borderless = true;
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}
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/**
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* Set the state of the radio button.
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*
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* @param state The new radio button state.
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*/
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void CRadioButton::setState(CRadioButton::RadioButtonState state)
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{
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if (m_state != state)
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{
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m_state = state;
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if (m_state != RADIO_BUTTON_STATE_OFF)
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{
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((CRadioButtonGroup*)m_parent)->setSelectedWidget(this);
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}
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m_widgetEventHandlers->raiseValueChangeEvent();
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redraw();
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}
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}
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/**
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* Draw the area of this widget that falls within the clipping region.
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* Called by the redraw() function to draw all visible regions.
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*
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* @param port The CGraphicsPort to draw to.
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* @see redraw()
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*/
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void CRadioButton::drawContents(CGraphicsPort *port)
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{
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// Get the X/Y position of the drawable region within the Label
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nxgl_coord_t x = getX();
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nxgl_coord_t y = getY();
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nxgl_coord_t width = getWidth();
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nxgl_coord_t height = getHeight();
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// Include and offset for the border
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if (!m_flags.borderless)
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{
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x += m_borderSize.left;
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y += m_borderSize.top;
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width -= (m_borderSize.left + m_borderSize.right);
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height -= (m_borderSize.top + m_borderSize.bottom);
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}
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// Decide which glyph to draw
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const struct SBitmap *glyph;
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switch (m_state)
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{
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default:
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case RADIO_BUTTON_STATE_ON:
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glyph = &g_radioButtonOn;
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break;
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case RADIO_BUTTON_STATE_OFF:
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glyph = &g_radioButtonOff;
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break;
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case RADIO_BUTTON_STATE_MU:
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glyph = &g_radioButtonMu;
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break;
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}
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// Don't exceed the size of the glyph
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if (width > glyph->width)
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{
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width = glyph->width;
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}
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if (height > glyph->height)
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{
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height = glyph->height;
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}
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// Draw button
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port->drawBitmap(x, y, width, height, glyph, 0, 0,
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CONFIG_NXWIDGETS_TRANSPARENT_COLOR);
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}
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/**
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* Sets the radiobutton's state to "on".
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*
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* @param x The x coordinate of the click.
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* @param y The y coordinate of the click.
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*/
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void CRadioButton::onClick(nxgl_coord_t x, nxgl_coord_t y)
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{
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setState(RADIO_BUTTON_STATE_ON);
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}
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