First check-in of NxWidgets

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4505 42af7a65-404d-4744-a932-0658087f49c3

1 files changed, 415 insertions, 0 deletions

diff --git a/NxWidgets/libnxwidgets/src/cscrollinglistbox.cxx b/NxWidgets/libnxwidgets/src/cscrollinglistbox.cxx
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+/****************************************************************************
+ * 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);
+}
+
+
+
+