#define __gtk2_ardour_cairo_widget_h__
#include <gtkmm/eventbox.h>
+#include "gtkmm2ext/widget_state.h"
-/** A parent class for widgets that are made up of a pixmap rendered using Cairo.
- * The pixmap is painted to screen on GTK expose events, but the rendering
- * is only done after set_dirty() has been called.
+/** A parent class for widgets that are rendered using Cairo.
*/
class CairoWidget : public Gtk::EventBox
void set_dirty ();
+ Gtkmm2ext::ActiveState active_state() const { return _active_state; }
+ Gtkmm2ext::VisualState visual_state() const { return _visual_state; }
+ virtual void set_active_state (Gtkmm2ext::ActiveState);
+ virtual void set_visual_state (Gtkmm2ext::VisualState);
+ virtual void unset_active_state () { set_active_state (Gtkmm2ext::ActiveState (0)); }
+ virtual void unset_visual_state () { set_visual_state (Gtkmm2ext::VisualState (0)); }
+
+ sigc::signal<void> StateChanged;
+
protected:
/** Render the widget to the given Cairo context */
virtual void render (cairo_t *) = 0;
virtual bool on_expose_event (GdkEventExpose *);
void on_size_allocate (Gtk::Allocation &);
+ void on_state_changed (Gtk::StateType);
+ Gdk::Color get_parent_bg ();
int _width; ///< pixmap width
int _height; ///< pixmap height
+ Gtkmm2ext::ActiveState _active_state;
+ Gtkmm2ext::VisualState _visual_state;
private:
- bool _dirty; ///< true if the pixmap requires re-rendering
GdkPixmap* _pixmap; ///< our pixmap
};