void set_source(const ControlSource &);
const ControlSource &get_source() const { return src; }
protected:
- virtual void on_press() =0;
- virtual void on_release() =0;
- virtual void on_motion(float, float) =0;
+ virtual void on_press() = 0;
+ virtual void on_release() = 0;
+ virtual void on_motion(float, float) = 0;
private:
void connect_signals();