diff options
| author | Paul Davis <paul@linuxaudiosystems.com> | 2014-01-10 11:02:05 -0500 |
|---|---|---|
| committer | Paul Davis <paul@linuxaudiosystems.com> | 2014-01-10 11:02:05 -0500 |
| commit | ffdf3ed01763197781a403d45c3b63f653045994 (patch) | |
| tree | 50adabe58baf008d042ebd2c20cc153db111f294 /libs/canvas/canvas.cc | |
| parent | daf51a2e49cee61f06eb632d5e2aaf7e18ebef56 (diff) | |
don't go through ::deliver_enter_leave() unnecessarily
Diffstat (limited to 'libs/canvas/canvas.cc')
| -rw-r--r-- | libs/canvas/canvas.cc | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/libs/canvas/canvas.cc b/libs/canvas/canvas.cc index db38d2d9a1..5e5fd6e727 100644 --- a/libs/canvas/canvas.cc +++ b/libs/canvas/canvas.cc @@ -338,6 +338,7 @@ GtkCanvas::pick_current_item (Duple const & point, int state) /* no items at point, just send leave event below */ } else { + if (within_items.front() == _current_item) { /* uppermost item at point is already _current_item */ return; @@ -346,7 +347,9 @@ GtkCanvas::pick_current_item (Duple const & point, int state) _new_current_item = const_cast<Item*> (within_items.front()); } - deliver_enter_leave (point, state); + if (_new_current_item != _current_item) { + deliver_enter_leave (point, state); + } } void @@ -404,7 +407,7 @@ GtkCanvas::deliver_enter_leave (Duple const & point, int state) } else if (_current_item->is_descendant_of (*_new_current_item)) { /* move from descendant to ancestor (X: "_current_item is an - * inferior of _new_current_item") + * inferior ("child") of _new_current_item") * * Deliver "virtual" leave notifications to all items in the * heirarchy between current and new_current. @@ -421,7 +424,7 @@ GtkCanvas::deliver_enter_leave (Duple const & point, int state) } else if (_new_current_item->is_descendant_of (*_current_item)) { /* move from ancestor to descendant (X: "_new_current_item is - * an inferior of _current_item") + * an inferior ("child") of _current_item") * * Deliver "virtual" enter notifications to all items in the * heirarchy between current and new_current. |