#ifndef __gtk2_ardour_cairo_widget_h__ #define __gtk2_ardour_cairo_widget_h__ #include class CairoWidget : public Gtk::EventBox { public: CairoWidget (); virtual ~CairoWidget (); void set_dirty (); protected: virtual void render (cairo_t *) = 0; virtual bool on_expose_event (GdkEventExpose *); void on_size_allocate (Gtk::Allocation &); int _width; ///< pixmap width int _height; ///< pixmap height private: bool _dirty; GdkPixmap* _pixmap; }; #endif