/usr/include/guichan/widgets/slider.hpp is in libguichan-dev 0.8.2-13.
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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
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#ifndef GCN_SLIDER_HPP
#define GCN_SLIDER_HPP
#include "guichan/keylistener.hpp"
#include "guichan/mouselistener.hpp"
#include "guichan/platform.hpp"
#include "guichan/widget.hpp"
namespace gcn
{
/**
* An implementation of a slider where a user can select different values by
* sliding between a start value and an end value of a scale.
*
* If the selected value is changed an action event will be sent to all
* action listeners of the slider.
*/
class GCN_CORE_DECLSPEC Slider :
public Widget,
public MouseListener,
public KeyListener
{
public:
/**
* Draw orientations for the slider. A slider can be drawn vertically or
* horizontally.
*/
enum Orientation
{
HORIZONTAL = 0,
VERTICAL
};
/**
* Constructor. The default start value of the slider scale is zero.
*
* @param scaleEnd The end value of the slider scale.
*/
Slider(double scaleEnd = 1.0);
/**
* Constructor.
*
* @param scaleStart The start value of the slider scale.
* @param scaleEnd The end value of the slider scale.
*/
Slider(double scaleStart, double scaleEnd);
/**
* Destructor.
*/
virtual ~Slider() { }
/**
* Sets the scale of the slider.
*
* @param scaleStart The start value of the scale.
* @param scaleEnd tThe end of value the scale.
* @see getScaleStart, getScaleEnd
*/
void setScale(double scaleStart, double scaleEnd);
/**
* Gets the start value of the scale.
*
* @return The start value of the scale.
* @see setScaleStart, setScale
*/
double getScaleStart() const;
/**
* Sets the start value of the scale.
*
* @param scaleStart The start value of the scale.
* @see getScaleStart
*/
void setScaleStart(double scaleStart);
/**
* Gets the end value of the scale.
*
* @return The end value of the scale.
* @see setScaleEnd, setScale
*/
double getScaleEnd() const;
/**
* Sets the end value of the scale.
*
* @param scaleEnd The end value of the scale.
* @see getScaleEnd
*/
void setScaleEnd(double scaleEnd);
/**
* Gets the current selected value.
*
* @return The current selected value.
* @see setValue
*/
double getValue() const;
/**
* Sets the current selected value.
*
* @param value The current selected value.
* @see getValue
*/
void setValue(double value);
/**
* Sets the length of the marker.
*
* @param length The length for the marker.
* @see getMarkerLength
*/
void setMarkerLength(int length);
/**
* Gets the length of the marker.
*
* @return The length of the marker.
* @see setMarkerLength
*/
int getMarkerLength() const;
/**
* Sets the orientation of the slider. A slider can be drawn vertically
* or horizontally.
*
* @param orientation The orientation of the slider.
* @see getOrientation
*/
void setOrientation(Orientation orientation);
/**
* Gets the orientation of the slider. A slider can be drawn vertically
* or horizontally.
*
* @return The orientation of the slider.
* @see setOrientation
*/
Orientation getOrientation() const;
/**
* Sets the step length. The step length is used when the keys LEFT
* and RIGHT are pressed to step in the scale.
*
* @param length The step length.
* @see getStepLength
*/
void setStepLength(double length);
/**
* Gets the step length. The step length is used when the keys LEFT
* and RIGHT are pressed to step in the scale.
*
* @return the step length.
* @see setStepLength
*/
double getStepLength() const;
// Inherited from Widget
virtual void draw(Graphics* graphics);
// Inherited from MouseListener.
virtual void mousePressed(MouseEvent& mouseEvent);
virtual void mouseDragged(MouseEvent& mouseEvent);
virtual void mouseWheelMovedUp(MouseEvent& mouseEvent);
virtual void mouseWheelMovedDown(MouseEvent& mouseEvent);
// Inherited from KeyListener
virtual void keyPressed(KeyEvent& keyEvent);
protected:
/**
* Draws the marker.
*
* @param graphics A graphics object to draw with.
*/
virtual void drawMarker(gcn::Graphics* graphics);
/**
* Converts a marker position to a value in the scale.
*
* @param position The position to convert.
* @return A scale value corresponding to the position.
* @see valueToMarkerPosition
*/
virtual double markerPositionToValue(int position) const;
/**
* Converts a value to a marker position.
*
* @param value The value to convert.
* @return A marker position corresponding to the value.
* @see markerPositionToValue
*/
virtual int valueToMarkerPosition(double value) const;
/**
* Gets the marker position of the current selected value.
*
* @return The marker position of the current selected value.
*/
virtual int getMarkerPosition() const;
/**
* True if the slider is dragged, false otherwise.
*/
bool mDragged;
/**
* Holds the current selected value.
*/
double mValue;
/**
* Holds the step length. The step length is used when the keys LEFT
* and RIGHT are pressed to step in the scale.
*/
double mStepLength;
/**
* Holds the length of the marker.
*/
int mMarkerLength;
/**
* Holds the start value of the scale.
*/
double mScaleStart;
/**
* Holds the end value of the scale.
*/
double mScaleEnd;
/**
* Holds the orientation of the slider. A slider can be drawn
* vertically or horizontally.
*/
Orientation mOrientation;
};
}
#endif // end GCN_SLIDER_HPP
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