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author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2012-03-22 21:22:59 +0000 |
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committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2012-03-22 21:22:59 +0000 |
commit | 4dedf494c242b2c4b52707441eefe2a36fbacf0f (patch) | |
tree | 36728130c995053f18637c019829f492f0c3b3fe /NxWidgets/libnxwidgets/src/cscrollinglistbox.cxx | |
parent | af2319a52f4b11df952a5a1060c76cc0cdff0b98 (diff) | |
download | nuttx-4dedf494c242b2c4b52707441eefe2a36fbacf0f.tar.gz nuttx-4dedf494c242b2c4b52707441eefe2a36fbacf0f.tar.bz2 nuttx-4dedf494c242b2c4b52707441eefe2a36fbacf0f.zip |
First check-in of NxWidgets
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4505 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'NxWidgets/libnxwidgets/src/cscrollinglistbox.cxx')
-rw-r--r-- | NxWidgets/libnxwidgets/src/cscrollinglistbox.cxx | 415 |
1 files changed, 415 insertions, 0 deletions
diff --git a/NxWidgets/libnxwidgets/src/cscrollinglistbox.cxx b/NxWidgets/libnxwidgets/src/cscrollinglistbox.cxx new file mode 100644 index 000000000..e0d041d34 --- /dev/null +++ b/NxWidgets/libnxwidgets/src/cscrollinglistbox.cxx @@ -0,0 +1,415 @@ +/**************************************************************************** + * NxWidgets/libnxwidgets/src/cscrollinglistbox.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 <stdint.h> +#include <stdbool.h> + +#include "cscrollinglistbox.hxx" +#include "cscrollbarvertical.hxx" +#include "cgraphicsport.hxx" + +/**************************************************************************** + * Pre-Processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Method Implementations + ****************************************************************************/ + +using namespace NXWidgets; + +/** + * Constructor. + * + * @param pWidgetControl The widget control for the display. + * @param x The x coordinate of the widget. + * @param y The y coordinate of the widget. + * @param width The width of the widget. + * @param height The height of the widget. + * @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. + */ + +CScrollingListBox::CScrollingListBox(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, 0, style) +{ + m_scrollbarWidth = 10; + + setBorderless(true); + + m_listbox = new CListBox(pWidgetControl, 0, 0, width - m_scrollbarWidth, + height, &m_style); + m_listbox->addWidgetEventHandler(this); + + // Create scrollbar + + CRect rect; + m_listbox->getClientRect(rect); + m_scrollbar = new CScrollbarVertical(pWidgetControl, width - m_scrollbarWidth, + 0, m_scrollbarWidth, height, &m_style); + m_scrollbar->setMinimumValue(0); + m_scrollbar->setMaximumValue(0); + m_scrollbar->setPageSize(rect.getHeight() / m_listbox->getOptionHeight()); + m_scrollbar->addWidgetEventHandler(this); + + // Add children to child array + + addWidget(m_listbox); + addWidget(m_scrollbar); +} + +/** + * Add a new option to the widget using default colors. + * + * @param text Text to show in the option. + * @param value The value of the option. + */ + +void CScrollingListBox::addOption(const CNxString &text, const uint32_t value) +{ + m_listbox->addOption(text, value); + m_scrollbar->setMaximumValue(m_listbox->getOptionCount() - 1); +} + +/** + * Add an option to the widget. + * + * @param option The option to add. + */ + +void CScrollingListBox::addOption(CListBoxDataItem *item) +{ + m_listbox->addOption(item); + m_scrollbar->setMaximumValue(m_listbox->getOptionCount() - 1); +} + +/** + * Add a new option to the widget. + * + * @param text Text to show in the option. + * @param value The value of the option. + * @param normalTextColor Color to draw the text with when not selected. + * @param normalBackColor Color to draw the background with when not selected. + * @param selectedTextColor Color to draw the text with when selected. + * @param selectedBackColor Color to draw the background with when selected. + */ + +void CScrollingListBox::addOption(const CNxString &text, const uint32_t value, + const nxwidget_pixel_t normalTextColor, + const nxwidget_pixel_t normalBackColor, + const nxwidget_pixel_t selectedTextColor, + const nxwidget_pixel_t selectedBackColor) +{ + m_listbox->addOption(text, value, normalTextColor, normalBackColor, + selectedTextColor, selectedBackColor); + m_scrollbar->setMaximumValue(m_listbox->getOptionCount() - 1); +} + +/** + * Remove an option from the widget by its index. + * + * @param index The index of the option to remove. + */ + +void CScrollingListBox::removeOption(const int index) +{ + m_listbox->removeOption(index); + m_scrollbar->setMaximumValue(m_listbox->getOptionCount() - 1); + + // Reposition grip if necessary + + if (m_scrollbar->getValue() > m_listbox->getOptionCount()) + { + m_scrollbar->setValue(0); + } +} + +/** + * Remove all options from the widget. + */ + +void CScrollingListBox::removeAllOptions(void) +{ + m_listbox->removeAllOptions(); + m_scrollbar->setMaximumValue(0); + m_scrollbar->setValue(0); +} + +/** + * Handles events raised by its sub-widgets. + * + * @param e Event arguments. + */ + +void CScrollingListBox::handleValueChangeEvent(const CWidgetEventArgs &e) +{ + if (e.getSource() != NULL) + { + if (e.getSource() == m_scrollbar) + { + if (m_listbox != NULL) + { + m_listbox->setRaisesEvents(false); + m_listbox->jump(0, 0 - (m_scrollbar->getValue() * m_listbox->getOptionHeight())); + m_listbox->setRaisesEvents(true); + } + } + else if (e.getSource() == m_listbox) + { + m_widgetEventHandlers->raiseValueChangeEvent(); + } + } +} + +/** + * Handle a widget action event. + * + * @param e The event data. + */ + +void CScrollingListBox::handleActionEvent(const CWidgetEventArgs &e) +{ + if (e.getSource() != NULL) + { + if (e.getSource() == m_listbox) + { + // Raise action events from list box to event handler + + m_widgetEventHandlers->raiseActionEvent(); + } + } +} + +/** + * Handles events raised by its sub-widgets. + * + * @param e Event arguments. + */ + +void CScrollingListBox::handleScrollEvent(const CWidgetEventArgs &e) +{ + if (e.getSource() != NULL) + { + if (e.getSource() == m_listbox) + { + if (m_scrollbar != NULL) + { + m_scrollbar->setRaisesEvents(false); + + int value = ((0 - m_listbox->getCanvasY()) << 16) / m_listbox->getOptionHeight(); + + m_scrollbar->setValueWithBitshift(value); + m_scrollbar->setRaisesEvents(true); + } + } + } +} + +/** + * Handle a mouse button click event. + * + * @param e The event data. + */ + +void CScrollingListBox::handleClickEvent(const CWidgetEventArgs &e) +{ + m_widgetEventHandlers->raiseClickEvent(e.getX(), e.getY()); +} + +/** + * Handles events raised by its sub-widgets. + * + * @param e Event arguments. + */ + +void CScrollingListBox::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 CScrollingListBox::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 CScrollingListBox::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()); + } +} + +/** + * Set the font used in the textbox. + * + * @param font Pointer to the new font. + */ + +void CScrollingListBox::setFont(CNxFont *font) +{ + m_style.font = font; + m_listbox->setFont(font); + m_scrollbar->setFont(font); +} + +/** + * 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 CScrollingListBox::getPreferredDimensions(CRect &rect) const +{ + // Get the listbox's preferred dimensions + + m_listbox->getPreferredDimensions(rect); + + // Add on the scrollbar width + + nxgl_coord_t width = rect.getWidth(); + rect.setWidth(width + m_scrollbarWidth); +} + +/** + * 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 CScrollingListBox::drawContents(CGraphicsPort *port) +{ + port->drawFilledRect(0, 0, getWidth(), getHeight(), getBackgroundColor()); +} + +/** + * Resize the listbox to the new dimensions. + * + * @param width The new width. + * @param height The new height. + */ + +void CScrollingListBox::onResize(nxgl_coord_t width, nxgl_coord_t height) +{ + // Resize the children + + m_listbox->resize(width - m_scrollbarWidth, height); + m_scrollbar->resize(m_scrollbarWidth, height); + + // Adjust scrollbar page size + + CRect rect; + getClientRect(rect); + m_scrollbar->setPageSize(rect.getHeight() / m_listbox->getOptionHeight()); + + // Move the scrollbar + + m_scrollbar->moveTo(width - m_scrollbarWidth, 0); +} + + + + |