/****************************************************************************
* NxWidgets/libnxwidgets/src/cradiobutton.cxx
*
* Copyright (C) 2012 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* 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 <nuttx/config.h>
#include <sys/types.h>
#include <stdint.h>
#include <stdbool.h>
#include <nuttx/nx/nxglib.h>
#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());
}
