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, 482 insertions, 0 deletions

diff --git a/NxWidgets/libnxwidgets/src/ccyclebutton.cxx b/NxWidgets/libnxwidgets/src/ccyclebutton.cxx
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+/****************************************************************************
+ * NxWidgets/libnxwidgets/src/ccyclebutton.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 <sys/types.h>
+#include <stdint.h>
+#include <stdbool.h>
+
+#include <nuttx/nx/nxglib.h>
+
+#include "ccyclebutton.hxx"
+#include "cgraphicsport.hxx"
+#include "cbitmap.hxx"
+#include "glyphs.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 glyphSpace   = m_borderSize.left - 1;
+  nxgl_coord_t glyphYOffset = (rect.getHeight() - g_cycle.height) >> 1;
+
+  nxwidget_pixel_t textColor;
+  nxwidget_pixel_t separatorLeftColor;
+  nxwidget_pixel_t separatorRightColor;
+
+  if (!isEnabled())
+    {
+      textColor           = getDisabledTextColor();
+      separatorLeftColor  = getShadowEdgeColor();
+      separatorRightColor = getShineEdgeColor();
+    }
+  else if (!isClicked())
+    {
+      textColor           = getEnabledTextColor();
+      separatorLeftColor  = getShadowEdgeColor();
+      separatorRightColor = getShineEdgeColor();
+    }
+  else
+    {
+      textColor           = getSelectedTextColor();
+      separatorLeftColor  = getShineEdgeColor();
+      separatorRightColor = getShadowEdgeColor();
+    }
+
+  // Draw cycle glyph
+
+  port->drawBitmap(rect.getX(), rect.getY() + glyphYOffset,
+                   g_cycle.width, g_cycle.height, &g_cycle,
+                   0, 0, CONFIG_NXWIDGETS_TRANSPARENT_COLOR);
+
+  // Draw separator
+
+  nxgl_coord_t x = getX() + glyphSpace + g_cycle.width;
+  nxgl_coord_t y = getY();
+  nxgl_coord_t w = glyphSpace + g_cycle.width;
+  nxgl_coord_t h = rect.getHeight() - 1;
+
+  port->drawLine(x, y, w, h, separatorLeftColor);
+  port->drawLine(x+1, y, w+1, h, separatorRightColor);
+
+  // 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::onRelease(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();
+}
+
+/**
+ * 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();
+}
+