Make activate/deactivate all only operate on visible

[ardour.git] / gtk2_ardour / cairo_widget.h

diff --git a/gtk2_ardour/cairo_widget.h b/gtk2_ardour/cairo_widget.h
index ee0bed114b2b657ee47d2b0acc2813f40a95c27f..d3eac0bb0227c10f6a1fbbff3098c16ba568b6a3 100644 (file)
--- a/gtk2_ardour/cairo_widget.h
+++ b/gtk2_ardour/cairo_widget.h
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2009 Paul Davis 
+    Copyright (C) 2009 Paul Davis
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -21,6 +21,10 @@
 #define __gtk2_ardour_cairo_widget_h__
 
 #include <gtkmm/eventbox.h>
+#include "gtkmm2ext/widget_state.h"
+
+/** A parent class for widgets that are rendered using Cairo.
+ */
 
 class CairoWidget : public Gtk::EventBox
 {
@@ -30,17 +34,30 @@ 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;
-       GdkPixmap* _pixmap;
+       GdkPixmap* _pixmap; ///< our pixmap
 };
 
 #endif