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#pragma once
#include "widget.h"
#include "image.h"
#include "font.h"
#include "notifier.h"
namespace GUI {
class Knob : public Widget {
public:
Knob(Widget *parent);
bool catchMouse() override { return true; }
bool isFocusable() override { return true; }
void setValue(float value);
float value();
Notifier<float> valueChangedNotifier;
protected:
virtual void clicked() {}
virtual void repaintEvent(RepaintEvent* repaintEvent) override;
virtual void buttonEvent(ButtonEvent* buttonEvent) override;
virtual void mouseMoveEvent(MouseMoveEvent* mouseMoveEvent) override;
virtual void scrollEvent(ScrollEvent* scrollEvent) override;
virtual void keyEvent(KeyEvent* keyEvent) override;
private:
void internalSetValue(float value);
typedef enum {
up,
down
} state_t;
state_t state;
float currentValue;
float maximum;
float minimum;
Image img_knob;
int mouse_offset_x;
Font font;
};
}
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