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#ifndef __DRUMGIZMO_KNOB_H__
#define __DRUMGIZMO_KNOB_H__
#include "widget.h"
#include "image.h"
namespace GUI {
class Knob : public Widget {
public:
Knob(Widget *parent);
bool catchMouse() { return true; }
bool isFocusable() { return true; }
void setValue(float value);
float value();
void registerClickHandler(void (*handler)(void *), void *ptr);
virtual void clicked() {}
virtual void repaintEvent(RepaintEvent *e);
virtual void buttonEvent(ButtonEvent *e);
virtual void mouseMoveEvent(MouseMoveEvent *e);
virtual void scrollEvent(ScrollEvent *e);
virtual void keyEvent(KeyEvent *e);
private:
typedef enum {
up,
down
} state_t;
float val;
float maximum;
float minimum;
state_t state;
GUI::Image img_knob;
void (*handler)(void *);
void *ptr;
int mouse_offset_x;
};
};
#endif
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