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widget: Improve early exit checks on queue_draw()

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(1) We don't need to check for realized when we check for mapped right
    below.
(2) Empty regions don't need to be drawn.
This commit is contained in:
Benjamin Otte 2016-10-18 03:49:09 +02:00
parent 52c4421bd3
commit 3fd63e1d67
1 changed files with 1 additions and 1 deletions
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2
gtk/gtkwidget.c
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@ -5067,7 +5067,7 @@ gtk_widget_queue_draw_region (GtkWidget *widget,
g_return_if_fail (GTK_IS_WIDGET (widget));
if (!_gtk_widget_get_realized (widget))
if (cairo_region_is_empty (region))
return;
/* Just return if the widget or one of its ancestors isn't mapped */