X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=gtk2_ardour%2Fcairo_widget.h;h=d3eac0bb0227c10f6a1fbbff3098c16ba568b6a3;hb=5b45dc04dfba73846893a8c591c4175c20b3415f;hp=8665f66198981e03ed39a2fd932ede6025979beb;hpb=bb9cc45cd22af67ac275a5e73accbe14fee664d8;p=ardour.git

diff --git a/gtk2_ardour/cairo_widget.h b/gtk2_ardour/cairo_widget.h
index 8665f66198..d3eac0bb02 100644
--- a/gtk2_ardour/cairo_widget.h
+++ b/gtk2_ardour/cairo_widget.h
@@ -21,10 +21,9 @@
 #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
@@ -35,17 +34,29 @@ public:
 
 	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
 };