GhostEvent wrangling.

	- update_range() solely looks after visibility.
	- update_note/hit() positions both x and y using code stolen from
	  update_range()
	- add update_contents_height() for when we just change the GR height.
	- find_event() is now used rather than map::find()
	- use temp canvas items to avoid constructor overhead.

1 files changed, 3 insertions, 0 deletions

diff --git a/gtk2_ardour/ghostregion.h b/gtk2_ardour/ghostregion.h
index 75b55d0dbe..f4848fd3cc 100644
--- a/gtk2_ardour/ghostregion.h
+++ b/gtk2_ardour/ghostregion.h
@@ -107,6 +107,7 @@ public:
 	void set_colors();
 
 	void update_range();
+	void set_contents_height();
 
 	void add_note(NoteBase*);
 	void update_note (Note*);
@@ -117,6 +118,8 @@ public:
 
 private:
 	ArdourCanvas::Color _outline;
+	ArdourCanvas::Rectangle* _tmp_rect;
+	ArdourCanvas::Polygon* _tmp_poly;
 
 	MidiGhostRegion::GhostEvent* find_event (NoteBase*);
 	typedef Evoral::Note<Evoral::Beats> NoteType;