205 lines
7.1 KiB
C++
205 lines
7.1 KiB
C++
/****************************************************************************
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* NxWidgets/libnxwidgets/src/cglyphsliderhorizontalgrip.cxx
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*
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* Copyright (C) 2013 Ken Pettit. All rights reserved.
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* Author: Ken Pettit <pettitkd@gmail.com>
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*
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* Mostly copied from CSliderHorizontalGrip written by Gregory Nutt
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX, NxWidgets, nor the names of its contributors
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* me be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************
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*
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* Portions of this package derive from Woopsi (http://woopsi.org/) and
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* portions are original efforts. It is difficult to determine at this
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* point what parts are original efforts and which parts derive from Woopsi.
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* However, in any event, the work of Antony Dzeryn will be acknowledged
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* in most NxWidget files. Thanks Antony!
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*
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* Copyright (c) 2007-2011, Antony Dzeryn
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the names "Woopsi", "Simian Zombie" nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY Antony Dzeryn ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL Antony Dzeryn BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include "cglyphsliderhorizontalgrip.hxx"
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#include "ibitmap.hxx"
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/****************************************************************************
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* Pre-Processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Method Implementations
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****************************************************************************/
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using namespace NXWidgets;
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/**
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* Constructor.
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*
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* @param pWidgetControl The controlling widget for the display
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* @param x The x coordinate of the grip, relative to its parent.
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* @param y The y coordinate of the grip, relative to its parent.
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* @param width The width of the grip.
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* @param height The height of the grip.
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*/
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CGlyphSliderHorizontalGrip::CGlyphSliderHorizontalGrip(CWidgetControl *pWidgetControl,
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nxgl_coord_t x, nxgl_coord_t y,
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nxgl_coord_t width, nxgl_coord_t height,
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IBitmap *pGripBitmap)
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: CImage(pWidgetControl, 0, (height>>1) - (pGripBitmap->getHeight() >> 1),
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pGripBitmap->getWidth(), pGripBitmap->getHeight(),
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pGripBitmap, 0)
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{
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// Make the widget draggable
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setDraggable(true);
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}
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/**
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* Resize the slider to the new dimensions.
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*
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* @param width The new width.
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* @param height The new height.
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*/
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void CGlyphSliderHorizontalGrip::onResize(nxgl_coord_t width, nxgl_coord_t height)
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{
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}
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/**
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* Starts dragging the grip and redraws it.
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*
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* @param x The x coordinate of the click.
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* @param y The y coordinate of the click.
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*/
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void CGlyphSliderHorizontalGrip::onClick(nxgl_coord_t x, nxgl_coord_t y)
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{
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startDragging(x, y);
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redraw();
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}
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/**
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* Redraws the grip.
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*
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* @param x The x coordinate of the mouse.
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* @param y The y coordinate of the mouse.
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*/
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void CGlyphSliderHorizontalGrip::onRelease(nxgl_coord_t x, nxgl_coord_t y)
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{
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redraw();
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}
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/**
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* Redraws the grip.
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*
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* @param x The x coordinate of the mouse.
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* @param y The y coordinate of the mouse.
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*/
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void CGlyphSliderHorizontalGrip::onReleaseOutside(nxgl_coord_t x, nxgl_coord_t y)
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{
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redraw();
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}
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/**
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* Moves the grip to follow the mouse.
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*
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* @param x The x coordinate of the mouse.
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* @param y The y coordinate of the mouse.
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* @param vX The horizontal distance of the drag.
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* @param vY The vertical distance of the drag.
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*/
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void CGlyphSliderHorizontalGrip::onDrag(nxgl_coord_t x, nxgl_coord_t y,
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nxgl_coord_t vX, nxgl_coord_t vY)
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{
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// Work out where we're moving to
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nxgl_coord_t destX = x - m_grabPointX - m_parent->getX();
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// Do we need to move?
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if (destX != m_rect.getX())
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{
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// Get parent rect
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CRect rect;
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m_parent->getClientRect(rect);
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// Prevent grip from moving outside parent
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if (destX < rect.getX())
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{
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destX = rect.getX();
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}
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else
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{
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if (destX + getWidth() > rect.getWidth() + rect.getX())
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{
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destX = (rect.getWidth() + rect.getX()) - getWidth() ;
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}
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}
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// Move to new location
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moveTo(destX, (rect.getHeight() - getHeight()) >> 1);
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m_parent->redraw();
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}
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}
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