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/*
ui/slider.h
This file is part of the Osirion project and is distributed under
the terms of the GNU General Public License version 2
*/
#ifndef __INCLUDED_UI_SLIDER_H__
#define __INCLUDED_UI_SLIDER_H__
#include <string>
#include "ui/button.h"
#include "ui/widget.h"
namespace ui
{
/**
* @brief a slider widget
*/
class Slider : public Widget
{
public:
Slider(Widget *parent, const float minimum = 0.0f, const float maximum = 1.0f);
~Slider();
/**
* @brief the current slider value
*/
inline const float value() const {
return slider_value;
}
/**
* @brief the minimum value
*/
inline const float minimum() const {
return slider_minimum;
}
/**
* @brief the maximum value
*/
inline const float maximum() const {
return slider_maximum;
}
/**
* @brief print widget description to console
*/
virtual void print(const size_t indent) const;
/**
* @brief set the current slider value
* @see value
*/
void set_value(const float value);
/**
* @brief set the minimum slider value
* @see minimum
*/
void set_minimum(const float minimum);
/**
* @brief set the maximum slider value
* @see maximum
*/
void set_maximum(const float maximum);
/**
* @brief set the minimum and maximum slider values
* @see minimum
* @see maximum
*/
void set_range(const float minimum, const float maximum);
protected:
/// resize event handler
virtual void resize();
/// draw event handler
virtual void draw();
/// emit event handler
virtual bool on_emit(Widget *sender, const Event event, void *data=0);
/// keypress event handler
virtual bool on_keypress(const int key, const unsigned int modifier);
/// keyrelease event handler
virtual bool on_keyrelease(const int key, const unsigned int modifier);
virtual void on_mouseover(const math::Vector2f &cursor);
/// mouse movement handler
virtual void on_mousemove(const math::Vector2f &cursor);
private:
/// validate slider value
void validate();
float slider_minimum;
float slider_maximum;
float slider_value;
bool slider_dragging;
Button *slider_minbutton;
Button *slider_decbutton;
Button *slider_incbutton;
Button *slider_maxbutton;
};
}
#endif // __INCLUDED_UI_SLIDER_H__
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