246 lines
8.0 KiB
C++
246 lines
8.0 KiB
C++
/****************************************************************************
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* NxWidgets/libnxwidgets/src/cslidervertical.cxx
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*
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* Copyright (C) 2012 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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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 <nuttx/config.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include "nxconfig.hxx"
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#include "cwidgetcontrol.hxx"
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#include "csliderverticalgrip.hxx"
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#include "cgraphicsport.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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CSliderVerticalGrip::CSliderVerticalGrip(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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: CNxWidget(pWidgetControl, x, y, width, height, WIDGET_DRAGGABLE)
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{
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}
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/**
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* Draw the area of this widget that falls within the clipping region.
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* Called by the redraw() function to draw all visible regions.
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*
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* @param port The CGraphicsPort to draw to.
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* @see redraw()
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*/
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void CSliderVerticalGrip::drawContents(CGraphicsPort *port)
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{
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CRect rect;
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getRect(rect);
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nxwidget_pixel_t color;
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if (!m_flags.clicked)
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{
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color = getSelectedBackgroundColor();
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}
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else
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{
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color = getHighlightColor();
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}
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port->drawFilledRect(rect.getX(), rect.getY(),
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rect.getWidth(), rect.getHeight(),
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color);
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}
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/**
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* Draw the area of this widget that falls within the clipping region.
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* Called by the redraw() function to draw all visible regions.
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*
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* @param port The CGraphicsPort to draw to.
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* @see redraw()
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*/
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void CSliderVerticalGrip::drawBorder(CGraphicsPort *port)
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{
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// Stop drawing if the widget indicates it should not have an outline
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if (!isBorderless())
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{
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if (isClicked())
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{
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port->drawBevelledRect(getX(), getY(), getWidth(), getHeight(),
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getShadowEdgeColor(), getShineEdgeColor());
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}
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else
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{
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port->drawBevelledRect(getX(), getY(), getWidth(), getHeight(),
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getShineEdgeColor(), getShadowEdgeColor());
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}
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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 CSliderVerticalGrip::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 CSliderVerticalGrip::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 CSliderVerticalGrip::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 CSliderVerticalGrip::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 destY = y - m_grabPointY - m_parent->getY();
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// Do we need to move?
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if (destY != m_rect.getY())
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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 (destY < rect.getY())
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{
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destY = rect.getY();
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}
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else
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{
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if (destY + getHeight() > rect.getHeight() + rect.getY())
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{
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destY = (rect.getHeight() + rect.getY()) - getHeight();
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}
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}
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// Move to new location
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moveTo(rect.getX(), destY);
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}
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}
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