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/* _______ __ __ __ ______ __ __ _______ __ __
* / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___ /\ / |\/ /\
* / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / /
* / / /__ / / // / // / // / / / ___ / // ___ / // /| ' / /
* / /_// /\ / /_// / // / // /_/_ / / // / // /\_/ / // / | / /
* /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ /
* \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/
*
* Copyright (c) 2004 - 2008 Olof Naessén and Per Larsson
*
*
* Per Larsson a.k.a finalman
* Olof Naessén a.k.a jansem/yakslem
*
* Visit: http://guichan.sourceforge.net
*
* License: (BSD)
* 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 of Guichan 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 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.
*/
/*
* For comments regarding functions please see the header file.
*/
#include "guichan/widgets/slider.hpp"
#include "guichan/graphics.hpp"
#include "guichan/key.hpp"
#include "guichan/mouseinput.hpp"
#include "debug.h"
namespace gcn
{
Slider::Slider(const double scaleEnd) :
gcn::Widget(),
gcn::MouseListener(),
gcn::KeyListener(),
mDragged(false),
mValue(0),
mStepLength(scaleEnd / 10),
mMarkerLength(10),
mScaleStart(0),
mScaleEnd(scaleEnd),
mOrientation(HORIZONTAL)
{
setFocusable(true);
setFrameSize(1);
addMouseListener(this);
addKeyListener(this);
}
Slider::Slider(const double scaleStart, const double scaleEnd) :
gcn::Widget(),
gcn::MouseListener(),
gcn::KeyListener(),
mDragged(false),
mValue(scaleStart),
mStepLength((scaleEnd - scaleStart) / 10),
mMarkerLength(10),
mScaleStart(scaleStart),
mScaleEnd(scaleEnd),
mOrientation(HORIZONTAL)
{
setFocusable(true);
setFrameSize(1);
addMouseListener(this);
addKeyListener(this);
}
void Slider::setScale(double scaleStart, double scaleEnd)
{
mScaleStart = scaleStart;
mScaleEnd = scaleEnd;
}
double Slider::getScaleStart() const
{
return mScaleStart;
}
void Slider::setScaleStart(double scaleStart)
{
mScaleStart = scaleStart;
}
double Slider::getScaleEnd() const
{
return mScaleEnd;
}
void Slider::setScaleEnd(double scaleEnd)
{
mScaleEnd = scaleEnd;
}
void Slider::setValue(double value)
{
if (value > getScaleEnd())
{
mValue = getScaleEnd();
return;
}
if (value < getScaleStart())
{
mValue = getScaleStart();
return;
}
mValue = value;
}
double Slider::getValue() const
{
return mValue;
}
int Slider::getMarkerLength() const
{
return mMarkerLength;
}
void Slider::setMarkerLength(int length)
{
mMarkerLength = length;
}
void Slider::setOrientation(Slider::Orientation orientation)
{
mOrientation = orientation;
}
Slider::Orientation Slider::getOrientation() const
{
return mOrientation;
}
double Slider::markerPositionToValue(int v) const
{
int w;
if (getOrientation() == HORIZONTAL)
w = getWidth();
else
w = getHeight();
const double pos = v / (static_cast<double>(w) - getMarkerLength());
return (1.0 - pos) * getScaleStart() + pos * getScaleEnd();
}
int Slider::valueToMarkerPosition(double value) const
{
int v;
if (getOrientation() == HORIZONTAL)
v = getWidth();
else
v = getHeight();
const int w = static_cast<int>((v - getMarkerLength())
* (value - getScaleStart())
/ (getScaleEnd() - getScaleStart()));
if (w < 0)
return 0;
if (w > v - getMarkerLength())
return v - getMarkerLength();
return w;
}
void Slider::setStepLength(double length)
{
mStepLength = length;
}
double Slider::getStepLength() const
{
return mStepLength;
}
int Slider::getMarkerPosition() const
{
return valueToMarkerPosition(getValue());
}
} // namespace gcn
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