Make tempo lines physical_screen_height high, add xml null check, Use clicked_regionview directly to calculate region movement. Using drag_info.data may result in the wrong regionbiew being used, don't use canvas coords for region_drag_finished_callback x calculation (eliminates speed adjustment), prevent incorrect updates on dropped regions by updating canvas before placing region copies.

git-svn-id: svn://localhost/ardour2/branches/3.0@3965 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 2 insertions, 1 deletions

diff --git a/gtk2_ardour/tempo_lines.h b/gtk2_ardour/tempo_lines.h
index 7d276595e4..83c71849c2 100644
--- a/gtk2_ardour/tempo_lines.h
+++ b/gtk2_ardour/tempo_lines.h
@@ -35,7 +35,7 @@ typedef boost::fast_pool_allocator<
 
 class TempoLines {
 public:
-	TempoLines(ArdourCanvas::Canvas& canvas, ArdourCanvas::Group* group);
+	TempoLines(ArdourCanvas::Canvas& canvas, ArdourCanvas::Group* group, double screen_height);
 
 	void tempo_map_changed();
 
@@ -52,6 +52,7 @@ private:
 	ArdourCanvas::Group*  _group;
 	double                _clean_left;
 	double                _clean_right;
+	double                _height;
 };
 
 #endif /* __ardour_tempo_lines_h__ */