Drag zoom area now fills the whole canvas

git-svn-id: svn://localhost/ardour2/trunk@1188 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 21 insertions, 1 deletions

diff --git a/gtk2_ardour/editor_canvas.cc b/gtk2_ardour/editor_canvas.cc
index 8f6203c40d..4a1fc10b9c 100644
--- a/gtk2_ardour/editor_canvas.cc
+++ b/gtk2_ardour/editor_canvas.cc
@@ -294,7 +294,6 @@ Editor::track_canvas_allocate (Gtk::Allocation alloc)
 bool
 Editor::track_canvas_idle ()
 {
-
 	if (canvas_idle_queued) {
 		canvas_idle_queued = false;
 	}
@@ -302,6 +301,27 @@ Editor::track_canvas_idle ()
 	canvas_width = canvas_allocation.get_width();
 	canvas_height = canvas_allocation.get_height();
 
+	full_canvas_height = canvas_height;
+
+	if (session) {
+		TrackViewList::iterator i;
+		double height = 0;
+
+		for (i = track_views.begin(); i != track_views.end(); ++i) {
+			if ((*i)->control_parent) {
+				height += (*i)->effective_height;
+				height += track_spacing;
+			}
+		}
+		
+		if (height) {
+			height -= track_spacing;
+		}
+
+		full_canvas_height = height;
+	}
+
+
 	zoom_range_clock.set ((nframes_t) floor ((canvas_width * frames_per_unit)));
 	edit_cursor->set_position (edit_cursor->current_frame);
 	playhead_cursor->set_position (playhead_cursor->current_frame);