Add a widget giving an overview of the editor, as (what I think is being) suggested in #2714. Many caveats: most notably that it looks quite ugly and you can't (yet) turn it off.

git-svn-id: svn://localhost/ardour2/branches/3.0@5162 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 41 insertions, 0 deletions

diff --git a/gtk2_ardour/editor_summary.h b/gtk2_ardour/editor_summary.h
new file mode 100644
index 0000000000..b9632dc96f
--- /dev/null
+++ b/gtk2_ardour/editor_summary.h
@@ -0,0 +1,41 @@
+#ifndef __gtk_ardour_editor_summary_h__
+#define __gtk_ardour_editor_summary_h__
+
+#include <gtkmm/eventbox.h>
+
+namespace ARDOUR {
+	class Session;
+}
+
+class Editor;
+
+class EditorSummary : public Gtk::EventBox
+{
+public:
+	EditorSummary (Editor *);
+	~EditorSummary ();
+
+	void set_session (ARDOUR::Session *);
+	void set_dirty ();
+	void set_bounds_dirty ();
+
+private:
+	bool on_expose_event (GdkEventExpose *);
+	void on_size_request (Gtk::Requisition *);
+	void on_size_allocate (Gtk::Allocation &);
+	bool on_button_press_event (GdkEventButton *);
+
+	void render (cairo_t *);
+	GdkPixmap* get_pixmap (GdkDrawable *);
+	void render_region (RegionView*, cairo_t*, nframes_t, double) const;
+
+	Editor* _editor;
+	ARDOUR::Session* _session;
+	GdkPixmap* _pixmap;
+	bool _regions_dirty;
+	int _width;
+	int _height;
+	double _pixels_per_frame;
+};
+
+#endif