df3eaebf59
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4505 42af7a65-404d-4744-a932-0658087f49c3
345 lines
10 KiB
C++
345 lines
10 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 "cradiobuttongroup.hxx"
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#include "cradiobutton.hxx"
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#include "cgraphicsport.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. Note that the group determines its width and height
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* from the position and dimensions of its children.
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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 group.
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* @param y The y coordinate of the group.
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* @param style The style that the button should use. If this is not
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* specified, the button will use the global default widget
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* style.
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*/
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CRadioButtonGroup::CRadioButtonGroup(CWidgetControl *pWidgetControl,
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nxgl_coord_t x, nxgl_coord_t y,
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CWidgetStyle *style)
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: CNxWidget(pWidgetControl, x, y, 0, 0, WIDGET_BORDERLESS, style)
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{
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m_widgetControl = pWidgetControl;
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m_selectedWidget = (CRadioButton *)NULL;
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}
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/**
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* Simple method for adding a new radio button to the group.
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* This should be used in preference to the usual addWidget() method,
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* as this method automatically resizes the group.
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*
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* @param x The x coordinate of the new button, relative to this
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* widget.
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* @param y The y coordinate of the new button, relative to this
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* widget.
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* @param width The width of the new button.
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* @param height The height of the new button.
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*/
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CRadioButton *CRadioButtonGroup::newRadioButton(nxgl_coord_t x, nxgl_coord_t y,
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nxgl_coord_t width, nxgl_coord_t height)
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{
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CRadioButton *newButton = new CRadioButton(m_widgetControl, x, y, width, height, &m_style);
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newButton->addWidgetEventHandler(this);
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addWidget(newButton);
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// Do we need to resize?
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nxgl_coord_t newWidth = getWidth();
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nxgl_coord_t newHeight = getHeight();
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if (newWidth < x + width)
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{
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newWidth = x + width;
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}
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if (newHeight < y + height)
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{
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newHeight = y + height;
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}
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resize(newWidth, newHeight);
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return newButton;
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}
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/**
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* Gets a pointer to the selected widget.
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*
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* @return Pointer to the selected widget.
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*/
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const CRadioButton *CRadioButtonGroup::getSelectedWidget(void) const
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{
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return (CRadioButton *)m_selectedWidget;
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}
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/**
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* Gets the index of the selected widget.
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*
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* @return The index of the selected widget.
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*/
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const int CRadioButtonGroup::getSelectedIndex(void) const
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{
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for (int i = 0; i < m_children.size(); i++)
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{
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if (((CRadioButton*)m_children[i]) == m_selectedWidget)
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{
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return i;
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}
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}
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// Nothing selected
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return -1;
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}
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/**
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* Sets the selected radio button to the supplied widget.
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*
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* @param widget The radio button to select.
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*/
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void CRadioButtonGroup::setSelectedWidget(CRadioButton* widget)
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{
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if (m_selectedWidget != widget)
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{
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if (m_selectedWidget != NULL)
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{
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m_selectedWidget->setState(CRadioButton::RADIO_BUTTON_STATE_OFF);
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}
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m_selectedWidget = widget;
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if (m_selectedWidget != NULL)
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{
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m_selectedWidget->setState(CRadioButton::RADIO_BUTTON_STATE_ON);
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}
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m_widgetEventHandlers->raiseValueChangeEvent();
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}
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}
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/**
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* Selects the widget at the specified index.
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*
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* @param index The index of the widget to select.
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*/
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void CRadioButtonGroup::setSelectedIndex(int index)
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{
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if (index < m_children.size())
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{
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setSelectedWidget((CRadioButton*)m_children[index]);
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m_widgetEventHandlers->raiseValueChangeEvent();
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}
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}
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/**
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* Insert the dimensions that this widget wants to have into the rect
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* passed in as a parameter. All coordinates are relative to the
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* widget's parent. Value is based on the length of the largest string
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* in the set of options.
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*
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* @param rect Reference to a rect to populate with data.
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*/
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void CRadioButtonGroup::getPreferredDimensions(CRect& rect) const
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{
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nxgl_coord_t width = 0;
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nxgl_coord_t height = 0;
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if (!m_flags.borderless)
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{
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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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nxgl_coord_t widgetX = 0;
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nxgl_coord_t widgetY = 0;
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nxgl_coord_t maxX = 0;
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nxgl_coord_t maxY = 0;
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// Locate largest x and y coords within children
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for (int i = 0; i < m_children.size(); ++i)
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{
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widgetX = m_children[i]->getX() + m_children[i]->getWidth();
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widgetY = m_children[i]->getY() + m_children[i]->getHeight();
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if (widgetX > maxX)
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{
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maxX = widgetX;
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}
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if (widgetY > maxY)
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{
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maxY = widgetY;
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}
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}
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rect.setX(m_rect.getX());
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rect.setY(m_rect.getY());
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rect.setWidth(width + maxX - getX());
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rect.setHeight(height + maxY - getY());
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}
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/**
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* Handle a mouse click event.
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*
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* @param e The event data.
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*/
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void CRadioButtonGroup::handleClickEvent(const CWidgetEventArgs &e)
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{
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m_widgetEventHandlers->raiseClickEvent(e.getX(), e.getY());
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}
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/**
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* Handle a mouse double-click event.
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*
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* @param e The event data.
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*/
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void CRadioButtonGroup::handleDoubleClickEvent(const CWidgetEventArgs &e)
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{
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m_widgetEventHandlers->raiseDoubleClickEvent(e.getX(), e.getY());
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}
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/**
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* Handle a mouse button release event that occurred within the bounds of
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* the source widget.
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* @param e The event data.
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*/
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void CRadioButtonGroup::handleReleaseEvent(const CWidgetEventArgs &e)
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{
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m_widgetEventHandlers->raiseReleaseEvent(e.getX(), e.getY());
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}
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/**
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* Handle a mouse button release event that occurred outside the bounds of
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* the source widget.
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*
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* @param e The event data.
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*/
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void CRadioButtonGroup::handleReleaseOutsideEvent(const CWidgetEventArgs &e)
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{
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// Child raised a release outside event, but we need to raise a different
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// event if the release occurred within the bounds of this parent widget
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if (checkCollision(e.getX(), e.getY()))
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{
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m_widgetEventHandlers->raiseReleaseEvent(e.getX(), e.getY());
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}
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else
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{
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m_widgetEventHandlers->raiseReleaseOutsideEvent(e.getX(), e.getY());
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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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* @param port The CGraphicsPort to draw to.
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* @see redraw()
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*/
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void CRadioButtonGroup::drawContents(CGraphicsPort *port)
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{
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port->drawFilledRect(getX(), getY(), getWidth(), getHeight(), getBackgroundColor());
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}
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