/**************************************************************************** * NxWidgets/libnxwidgets/include/cscrollbarhorizontal.hxx * * 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 "nxconfig.hxx" #include "cnxwidget.hxx" #include "cwidgeteventhandler.hxx" #include "islider.hxx" #include "cscrollbarhorizontal.hxx" #include "cglyphbutton.hxx" #include "csliderhorizontal.hxx" #include "cnxtimer.hxx" #include "glyphs.hxx" /**************************************************************************** * Pre-Processor Definitions ****************************************************************************/ /**************************************************************************** * Method Implementation ****************************************************************************/ using namespace NXWidgets; /** * Constructor. * * @param pWidgetControl The widget control instance for the window. * @param x The x coordinate of the slider, relative to its parent. * @param y The y coordinate of the slider, relative to its parent. * @param width The width of the slider. * @param height The height of the slider. * @param style The style that the widget should use. If this is not * specified, the widget will use the values stored in the global * g_defaultWidgetStyle object. The widget will copy the properties of * the style into its own internal style object. */ CScrollbarHorizontal::CScrollbarHorizontal(CWidgetControl *pWidgetControl, nxgl_coord_t x, nxgl_coord_t y, nxgl_coord_t width, nxgl_coord_t height, CWidgetStyle* style) : CNxWidget(pWidgetControl, x, y, width, height, WIDGET_BORDERLESS, style) { m_buttonWidth = 10; // Create the children m_slider = new CSliderHorizontal(pWidgetControl, m_buttonWidth, 0, width - (m_buttonWidth << 1), height); m_slider->addWidgetEventHandler(this); // Set up the left glyph button m_leftButton = new CGlyphButton(pWidgetControl, 0, 0, m_buttonWidth, height, 0, 0, &g_arrowLeft, &g_arrowLeft, &m_style); m_leftButton->addWidgetEventHandler(this); // Set up the right glyph button m_rightButton = new CGlyphButton(pWidgetControl, width - m_buttonWidth, 0, m_buttonWidth, height, 0, 0, &g_arrowRight, &g_arrowRight, &m_style); m_rightButton->addWidgetEventHandler(this); // Create timer m_scrollTimeout = 10; m_timer = new CNxTimer(pWidgetControl, m_scrollTimeout, true); m_timer->addWidgetEventHandler(this); addWidget(m_slider); addWidget(m_leftButton); addWidget(m_rightButton); addWidget(m_timer); } /** * Get the smallest value that the slider can represent. * * @return The smallest value. */ const nxgl_coord_t CScrollbarHorizontal::getMinimumValue(void) const { return m_slider->getMinimumValue(); } /** * Get the largest value that the slider can represent. * * @return The largest value. */ const nxgl_coord_t CScrollbarHorizontal::getMaximumValue(void) const { return m_slider->getMaximumValue(); } /** * Get the current value of the slider. * * @return The current slider value. */ const nxgl_coord_t CScrollbarHorizontal::getValue(void) const { return m_slider->getValue(); } /** * Get the value represented by the height of the grip. * For sliders, this would typically be 1 (so each new * grip position is worth 1). For scrollbars, this * would be the height of the scrolling widget. * * @return The page size. */ const nxgl_coord_t CScrollbarHorizontal::getPageSize(void) const { return m_slider->getPageSize(); } /** * Set the smallest value that the slider can represent. * * @param value The smallest value. */ void CScrollbarHorizontal::setMinimumValue(const nxgl_coord_t value) { m_slider->setMinimumValue(value); } /** * Set the largest value that the slider can represent. * * @param value The largest value. */ void CScrollbarHorizontal::setMaximumValue(const nxgl_coord_t value) { m_slider->setMaximumValue(value); } /** * Set the value that of the slider. This will reposition * and redraw the grip. * * @param value The new value. */ void CScrollbarHorizontal::setValue(const nxgl_coord_t value) { m_slider->setValue(value); } /** * Set the value that of the slider. This will reposition and redraw * the grip. The supplied value should be bitshifted left 16 places. * This ensures greater accuracy than the standard setValue() method if * the slider is being used as a scrollbar. * * @param value The new value. */ void CScrollbarHorizontal::setValueWithBitshift(const int32_t value) { m_slider->setValueWithBitshift(value); } /** * Set the page size represented by the grip. * * @param pageSize The page size. * @see getPageSize(). */ void CScrollbarHorizontal::setPageSize(nxgl_coord_t pageSize) { m_slider->setPageSize(pageSize); } /** * Process events fired by the grip. * * @param e The event details. */ void CScrollbarHorizontal::handleActionEvent(const CWidgetEventArgs &e) { // Check which widget fired the event if (e.getSource() == m_timer) { // Which widget is clicked? if (m_leftButton->isClicked()) { // Move the grip left m_slider->setValue(m_slider->getValue() - m_slider->getMinimumStep()); } else if (m_rightButton->isClicked()) { // Move the grip right m_slider->setValue(m_slider->getValue() + m_slider->getMinimumStep()); } } } /** * Process events fired by the grip. * * @param e The event details. */ void CScrollbarHorizontal::handleClickEvent(const CWidgetEventArgs &e) { if (e.getSource() == m_leftButton) { // Start the timer m_timer->start(); // Move the grip left m_slider->setValue(m_slider->getValue() - m_slider->getMinimumStep()); } else if (e.getSource() == m_rightButton) { // Start the timer m_timer->start(); // Move the grip right m_slider->setValue(m_slider->getValue() + m_slider->getMinimumStep()); } } /** * Process events fired by the grip. * * @param e The event details. */ void CScrollbarHorizontal::handleReleaseEvent(const CWidgetEventArgs &e) { if ((e.getSource() == m_leftButton) || (e.getSource() == m_rightButton)) { // Stop the timer m_timer->stop(); } } /** * Process events fired by the grip. * * @param e The event details. */ void CScrollbarHorizontal::handleReleaseOutsideEvent(const CWidgetEventArgs &e) { if ((e.getSource() == m_leftButton) || (e.getSource() == m_rightButton)) { // Stop the timer m_timer->stop(); } } /** * Process events fired by the grip. * * @param e The event details. */ void CScrollbarHorizontal::handleValueChangeEvent(const CWidgetEventArgs &e) { if (e.getSource() == m_slider) { m_widgetEventHandlers->raiseValueChangeEvent(); } } /** * Resize the scrollbar to the new dimensions. * * @param width The new width. * @param height The new height. */ void CScrollbarHorizontal::onResize(nxgl_coord_t width, nxgl_coord_t height) { // Remember current values nxgl_coord_t value = getValue(); bool events = raisesEvents(); // Disable event raising setRaisesEvents(false); // Resize and move children m_slider->resize(width - (m_buttonWidth << 1), height); m_leftButton->moveTo(m_slider->getWidth(), 0); m_rightButton->moveTo(m_slider->getWidth() + m_buttonWidth, 0); // Set back to current value setValue(value); // Reset event raising setRaisesEvents(events); }