Fix mouse event position offset bug.

Search scroll groups for event delivery from top to bottom rather than bottom to top. Overlapping scroll groups still aren't properly supported by the canvas, but currently all we care about is that the top one gets the event, so the hscroll group (tempo lines) can be below the hvscroll group (tracks), but the latter gets events.
nmains · Jan 12, 2015 · 55278fb · 55278fb
1 parent e79af77
commit 55278fb
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/libs/canvas/canvas.cc b/libs/canvas/canvas.cc
@@ -251,7 +251,7 @@ Canvas::window_to_canvas (Duple const & d) const
 		in_window.y = 0;
 	}
 
-	for (std::list<Item*>::const_iterator i = root_children.begin(); i != root_children.end(); ++i) {
+	for (std::list<Item*>::const_reverse_iterator i = root_children.rbegin(); i != root_children.rend(); ++i) {
 		if (((sg = dynamic_cast<ScrollGroup*>(*i)) != 0) && sg->covers_window (in_window)) {
 			break;
 		}