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Diffstat (limited to 'NxWidgets/libnxwidgets/src/cradiobuttongroup.cxx')
| -rw-r--r-- | NxWidgets/libnxwidgets/src/cradiobuttongroup.cxx | 344 |
1 files changed, 344 insertions, 0 deletions
diff --git a/NxWidgets/libnxwidgets/src/cradiobuttongroup.cxx b/NxWidgets/libnxwidgets/src/cradiobuttongroup.cxx new file mode 100644 index 000000000..b1d75f625 --- /dev/null +++ b/NxWidgets/libnxwidgets/src/cradiobuttongroup.cxx @@ -0,0 +1,344 @@ +/**************************************************************************** + * 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()); +} |