/**************************************************************************** * apps/graphics/nxwidgets/src/ccyclebutton.cxx * * 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. * ****************************************************************************/ /**************************************************************************** * Included Files ****************************************************************************/ #include #include #include #include #include #include "graphics/nxwidgets/ccyclebutton.hxx" #include "graphics/nxwidgets/cgraphicsport.hxx" #include "graphics/nxwidgets/cbitmap.hxx" #include "graphics/nxglyphs.hxx" /**************************************************************************** * Pre-Processor Definitions ****************************************************************************/ /**************************************************************************** * CButton Method Implementations ****************************************************************************/ using namespace NXWidgets; /** * Constructor for cycle buttons. * * @param pWidgetControl The widget control for the display. * @param x The x coordinate of the button, relative to its parent. * @param y The y coordinate of the button, relative to its parent. * @param width The width of the button. * @param height The height of the button. * @param style The style that the button should use. If this is not * specified, the button will use the values stored in the global * g_defaultWidgetStyle object. The button will copy the properties of * the style into its own internal style object. */ CCycleButton::CCycleButton(CWidgetControl *pWidgetControl, nxgl_coord_t x, nxgl_coord_t y, nxgl_coord_t width, nxgl_coord_t height, CWidgetStyle *style) : CButton(pWidgetControl, x, y, width, height, "", style) { // Force text to align left nxgl_coord_t glyphSpace = m_borderSize.left - 1; // Text x coordinate is width of cycle glyph plus a space plus width // of the spacer line (2px) plus a space m_align.x = g_cycle.width + 2 + (glyphSpace << 1); m_options.addListDataEventHandler(this); m_options.setAllowMultipleSelections(false); } /** * Add a new option to the widget. * * @param text The text of the option. * @param value The value of the option. */ void CCycleButton::addOption(const CNxString &text, const uint32_t value) { m_options.addItem(new CListDataItem(text, value)); // Select the option if this is the first option added if (m_options.getItemCount() == 1) { selectOption(0); } } /** * Remove an option from the widget by its index. * * @param index The index of the option to remove. */ void CCycleButton::removeOption(const int index) { m_options.removeItem(index); } /** * Remove all options from the widget. */ void CCycleButton::removeAllOptions(void) { m_options.removeAllItems(); } /** * Select an option by its index. * Redraws the widget and raises a value changed event. * * @param index The index of the option to select. */ void CCycleButton::selectOption(const int index) { m_options.setItemSelected(index, true); } /** * Get the selected index. Returns -1 if nothing is selected. If more than one * option is selected, the index of the first selected option is returned. * * @return The selected index. */ const int CCycleButton::getSelectedIndex(void) const { return m_options.getSelectedIndex(); } /** * Sets the selected index. Specify -1 to select nothing. Resets any * other selected options to deselected. * Redraws the widget and raises a value changed event. * * @param index The selected index. */ void CCycleButton::setSelectedIndex(const int index) { m_options.setItemSelected(index, true); } /** * Get the selected option. Returns NULL if nothing is selected. * * @return The selected option. */ const CListDataItem *CCycleButton::getSelectedOption(void) const { return m_options.getSelectedItem(); } /** * Sort the options alphabetically by the text of the options. */ void CCycleButton::sort(void) { m_options.sort(); } /** * Handles list data changed events. * * @param e Event arguments. */ void CCycleButton::handleListDataChangedEvent(const CListDataEventArgs &e) { redraw(); } /** * Handles list selection changed events. * * @param e Event arguments. */ void CCycleButton::handleListDataSelectionChangedEvent(const CListDataEventArgs &e) { redraw(); 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 CCycleButton::getPreferredDimensions(CRect &rect) const { nxgl_coord_t width = 0; nxgl_coord_t height = getFont()->getHeight(); // Locate longest string in options for (int i = 0; i < m_options.getItemCount(); ++i) { nxgl_coord_t optionWidth = getFont()->getStringWidth(m_options.getItem(i)->getText()); if (optionWidth > width) { width = optionWidth; } } // Add the border width if (!m_flags.borderless) { width += (m_borderSize.left + m_borderSize.right); height += (m_borderSize.top + m_borderSize.bottom); } // Add text alignment width += m_align.x; height += m_align.y; // And returned this preferred size rect.setX(m_rect.getX()); rect.setY(m_rect.getY()); rect.setWidth(width); rect.setHeight(height); } /** * 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 CCycleButton::drawContents(CGraphicsPort *port) { // Get the drawing region (excluding any border) CRect rect; getRect(rect); nxgl_coord_t glyphYOffset = (rect.getHeight() - g_cycle.height) >> 1; nxwidget_pixel_t textColor; if (!isEnabled()) { textColor = getDisabledTextColor(); } else if (!isClicked()) { textColor = getEnabledTextColor(); } else { textColor = getSelectedTextColor(); } // Draw cycle glyph port->drawBitmap(rect.getX(), rect.getY() + glyphYOffset, g_cycle.width, g_cycle.height, &g_cycle, 0, 0, CONFIG_NXWIDGETS_TRANSPARENT_COLOR); // Only draw text if option is selected if (m_options.getSelectedItem() != NULL) { struct nxgl_point_s pos; pos.x = getX() + m_align.x; pos.y = getY() + m_align.y; port->drawText(&pos, &rect, getFont(), m_options.getSelectedItem()->getText(), 0, m_options.getSelectedItem()->getText().getLength(), textColor); } } /** * 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 CCycleButton::drawBorder(CGraphicsPort *port) { // Determine the background color nxwidget_pixel_t backColor; if (isClicked() || m_highlighted) { backColor = getSelectedBackgroundColor(); } else { backColor = getBackgroundColor(); } // Draw the background (excluding the border) port->drawFilledRect(getX(), getY(), getWidth(), getHeight(), backColor); // Then add the border. drawOutline(port); } /** * Draws the outline of the button. * * @param port Graphics port to draw to. */ void CCycleButton::drawOutline(CGraphicsPort *port) { // Stop drawing if the widget indicates it should not have an outline if (isBorderless()) { return; } // Work out which colors to use nxgl_coord_t color1; nxgl_coord_t color2; if (isClicked()) { // Bevelled into the screen color1 = getShadowEdgeColor(); color2 = getShineEdgeColor(); } else { // Bevelled out of the screen color1 = getShineEdgeColor(); color2 = getShadowEdgeColor(); } port->drawBevelledRect(getX(), getY(), getWidth(), getHeight(), color1, color2); } /** * Selects the next option in the list and redraws the button. * * @param x The x coordinate of the mouse. * @param y The y coordinate of the mouse. */ void CCycleButton::onPreRelease(nxgl_coord_t x, nxgl_coord_t y) { // Choose next option if (m_options.getItemCount() > 1) { int selectedIndex = m_options.getSelectedIndex(); if (selectedIndex < m_options.getItemCount() - 1) { // Move to next option selectOption(selectedIndex + 1); } else { // Wrap around as there are no more options selectOption(0); } } redraw(); CButton::onPreRelease(x, y); } /** * Redraws the button. * * @param x The x coordinate of the mouse. * @param y The y coordinate of the mouse. */ void CCycleButton::onReleaseOutside(nxgl_coord_t x, nxgl_coord_t y) { redraw(); }