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Nelson Ben authored
Caused by GtkIconView doing an invalidate and relayout of *all* items in the view anytime we update model data in any indiviual item (which happens with all the items that are getting in and out of the scrolling area while we scroll). This caused GtkIconView to machine-gunned us with "size-allocate" signals, a signal we were using to update thumbnails when the sidebar is resized. Fixed by connecting to the GtkTreeModel "row-changed" signal before GtkIconView does it, and stop emission from there. As we don't depend now on "size-allocate" signals to show thumbnails while we scroll, just queue a draw on the icon view when a thumbnail finish rendering. Thanks Jose Aliste for first spotting the problem. https://bugzilla.gnome.org/show_bug.cgi?id=691448
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