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Diffstat (limited to 'NxWidgets/libnxwidgets/src/cscrollbarvertical.cxx')
| -rw-r--r-- | NxWidgets/libnxwidgets/src/cscrollbarvertical.cxx | 404 |
1 files changed, 404 insertions, 0 deletions
diff --git a/NxWidgets/libnxwidgets/src/cscrollbarvertical.cxx b/NxWidgets/libnxwidgets/src/cscrollbarvertical.cxx new file mode 100644 index 000000000..76b5c5dec --- /dev/null +++ b/NxWidgets/libnxwidgets/src/cscrollbarvertical.cxx @@ -0,0 +1,404 @@ +/**************************************************************************** + * NxWidgets/libnxwidgets/include/cscrollbarhorizontal.hxx + * + * 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 <stdint.h> +#include <stdbool.h> + +#include <nuttx/nx/nxglib.h> + +#include "nxconfig.hxx" +#include "cscrollbarvertical.hxx" +#include "cglyphbutton.hxx" +#include "cslidervertical.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. + */ + +CScrollbarVertical::CScrollbarVertical(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_buttonHeight = 10; + + // Create the children + + m_slider = new CSliderVertical(pWidgetControl, 0, m_buttonHeight, + width, height - (m_buttonHeight << 1)); + m_slider->addWidgetEventHandler(this); + + // Setup the up button + + m_upButton = new CGlyphButton(pWidgetControl, + 0, 0, + width, m_buttonHeight, + 0, 0, + &g_arrowUp, &g_arrowUp, &m_style); + m_upButton->addWidgetEventHandler(this); + + // Setup the down button + + m_downButton = new CGlyphButton(pWidgetControl, + 0, height - m_buttonHeight, + width, m_buttonHeight, + 0, 0, + &g_arrowDown, &g_arrowDown, &m_style); + m_downButton->addWidgetEventHandler(this); + + // Create timer + + m_scrollTimeout = 10; + + m_timer = new CNxTimer(pWidgetControl, m_scrollTimeout, true); + m_timer->addWidgetEventHandler(this); + + addWidget(m_slider); + addWidget(m_upButton); + addWidget(m_downButton); + addWidget(m_timer); +} + +/** + * Get the smallest value that the slider can represent. + * + * @return The smallest value. + */ + +const nxgl_coord_t CScrollbarVertical::getMinimumValue(void) const +{ + return m_slider->getMinimumValue(); +} + +/** + * Get the largest value that the slider can represent. + * + * @return The largest value. + */ + +const nxgl_coord_t CScrollbarVertical::getMaximumValue(void) const +{ + return m_slider->getMaximumValue(); +} + +/** + * Get the current value of the slider. + * + * @return The current slider value. + */ + +const nxgl_coord_t CScrollbarVertical::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 CScrollbarVertical::getPageSize(void) const +{ + return m_slider->getPageSize(); +} + +/** + * Set the smallest value that the slider can represent. + * + * @param value The smallest value. + */ + +void CScrollbarVertical::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 CScrollbarVertical::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 CScrollbarVertical::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 CScrollbarVertical::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 CScrollbarVertical::setPageSize(nxgl_coord_t pageSize) +{ + m_slider->setPageSize(pageSize); +} + +/** + * Process events fired by the grip. + * + * @param e The event details. + */ + +void CScrollbarVertical::handleActionEvent(const CWidgetEventArgs &e) +{ + // Check which widget fired the event + + if (e.getSource() == m_timer) + { + // Which widget is clicked? + + if (m_upButton->isClicked()) + { + // Move the grip up + + m_slider->setValue(m_slider->getValue() - m_slider->getMinimumStep()); + } + else if (m_downButton->isClicked()) + { + // Move the grip down + + m_slider->setValue(m_slider->getValue() + m_slider->getMinimumStep()); + } + + m_widgetEventHandlers->raiseValueChangeEvent(); + } +} + +/** + * Process events fired by the grip. + * + * @param e The event details. + */ + +void CScrollbarVertical::handleClickEvent(const CWidgetEventArgs &e) +{ + if (e.getSource() == m_upButton) + { + // Start the timer + + m_timer->start(); + + // Move the grip up + + m_slider->setValue(m_slider->getValue() - m_slider->getMinimumStep()); + m_widgetEventHandlers->raiseValueChangeEvent(); + } + else if (e.getSource() == m_downButton) + { + // Start the timer + + m_timer->start(); + + // Move the grip down + + m_slider->setValue(m_slider->getValue() + m_slider->getMinimumStep()); + m_widgetEventHandlers->raiseValueChangeEvent(); + } +} + +/** + * Process events fired by the grip. + * + * @param e The event details. + */ + +void CScrollbarVertical::handleReleaseEvent(const CWidgetEventArgs &e) +{ + if ((e.getSource() == m_upButton) || (e.getSource() == m_downButton)) + { + // Stop the timer + + m_timer->stop(); + } +} + +/** + * Process events fired by the grip. + * + * @param e The event details. + */ + +void CScrollbarVertical::handleReleaseOutsideEvent(const CWidgetEventArgs &e) +{ + if ((e.getSource() == m_upButton) || (e.getSource() == m_downButton)) + { + // Stop the timer + + m_timer->stop(); + } +} + +/** + * Process events fired by the grip. + * + * @param e The event details. + */ + +void CScrollbarVertical::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 CScrollbarVertical::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, height - (m_buttonHeight << 1)); + m_upButton->moveTo(0, m_slider->getHeight()); + m_downButton->moveTo(0, m_slider->getHeight() + m_buttonHeight); + + // Set back to current value + + setValue(value); + + // Reset event raising + + setRaisesEvents(events); +} |