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+/****************************************************************************
+ * NxWidgets/libnxwidgets/src/cglyphsliderhorizontalgrip.cxx
+ *
+ * Copyright (C) 2013 Ken Pettit. All rights reserved.
+ * Author: Ken Pettit <pettitkd@gmail.com>
+ *
+ * Mostly copied from CSliderHorizontalGrip written by 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 "cglyphsliderhorizontalgrip.hxx"
+#include "ibitmap.hxx"
+
+/****************************************************************************
+ * Pre-Processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Method Implementations
+ ****************************************************************************/
+
+using namespace NXWidgets;
+
+/**
+ * Constructor.
+ *
+ * @param pWidgetControl The controlling widget for the display
+ * @param x The x coordinate of the grip, relative to its parent.
+ * @param y The y coordinate of the grip, relative to its parent.
+ * @param width The width of the grip.
+ * @param height The height of the grip.
+ */
+
+CGlyphSliderHorizontalGrip::CGlyphSliderHorizontalGrip(CWidgetControl *pWidgetControl,
+ nxgl_coord_t x, nxgl_coord_t y,
+ nxgl_coord_t width, nxgl_coord_t height,
+ IBitmap *pGripBitmap)
+: CImage(pWidgetControl, 0, (height>>1) - (pGripBitmap->getHeight() >> 1),
+ pGripBitmap->getWidth(), pGripBitmap->getHeight(),
+ pGripBitmap, 0)
+{
+ // Make the widget draggable
+
+ setDraggable(true);
+}
+
+/**
+ * Resize the slider to the new dimensions.
+ *
+ * @param width The new width.
+ * @param height The new height.
+ */
+
+void CGlyphSliderHorizontalGrip::onResize(nxgl_coord_t width, nxgl_coord_t height)
+{
+}
+
+/**
+ * Starts dragging the grip and redraws it.
+ *
+ * @param x The x coordinate of the click.
+ * @param y The y coordinate of the click.
+ */
+
+void CGlyphSliderHorizontalGrip::onClick(nxgl_coord_t x, nxgl_coord_t y)
+{
+ startDragging(x, y);
+ redraw();
+}
+
+/**
+ * Redraws the grip.
+ *
+ * @param x The x coordinate of the mouse.
+ * @param y The y coordinate of the mouse.
+ */
+
+void CGlyphSliderHorizontalGrip::onRelease(nxgl_coord_t x, nxgl_coord_t y)
+{
+ redraw();
+}
+
+/**
+ * Redraws the grip.
+ *
+ * @param x The x coordinate of the mouse.
+ * @param y The y coordinate of the mouse.
+ */
+
+void CGlyphSliderHorizontalGrip::onReleaseOutside(nxgl_coord_t x, nxgl_coord_t y)
+{
+ redraw();
+}
+
+/**
+ * Moves the grip to follow the mouse.
+ *
+ * @param x The x coordinate of the mouse.
+ * @param y The y coordinate of the mouse.
+ * @param vX The horizontal distance of the drag.
+ * @param vY The vertical distance of the drag.
+ */
+
+void CGlyphSliderHorizontalGrip::onDrag(nxgl_coord_t x, nxgl_coord_t y,
+ nxgl_coord_t vX, nxgl_coord_t vY)
+{
+ // Work out where we're moving to
+
+ nxgl_coord_t destX = x - m_grabPointX - m_parent->getX();
+
+ // Do we need to move?
+
+ if (destX != m_rect.getX())
+ {
+ // Get parent rect
+
+ CRect rect;
+ m_parent->getClientRect(rect);
+
+ // Prevent grip from moving outside parent
+
+ if (destX < rect.getX())
+ {
+ destX = rect.getX();
+ }
+ else
+ {
+ if (destX + getWidth() > rect.getWidth() + rect.getX())
+ {
+ destX = (rect.getWidth() + rect.getX()) - getWidth() ;
+ }
+ }
+
+ // Move to new location
+
+ moveTo(destX, (rect.getHeight() - getHeight()) >> 1);
+ m_parent->redraw();
+ }
+}