+/*
+ 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
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
#ifndef __gtk2_ardour_cairo_widget_h__
#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
{
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