We used to handle zero height/width specially in the non-double buffered
case due to the weird behaviour of XClearArea in this case. However
this is undocumented, incompatible with what happens on double-buffered
drawing, and just not a good API. So, we drop this behaviour, having
fixed gtkclist.c which used this.
There are two issues here. First of all an ignored update didn't
use to unset update_idle which could cause all further idle repaints
to be ignored. (Bug #591583)
Secondly, if we ignore the process_all_updates we may end up not updating
the windows in update_windows unless something else triggers an update.
So, we handle this by checking for recursions and scheduling a new update
at the end of the outermost process_all_updates.
Fixed the button-sensivity patch done to GtkComboBox to account for
changes in appearance (changes to the appears-as-list style property).
Also, in list-mode, the event box that has been created below the cell
view also needs to have its sensitivity updated.
Commit 3f306a4042 made it possible for
gtk_tree_view_top_row_to_dy() to be called recursively. (In a different
way than was already guarded for). This caused a single test case in
the scrolling test suite to fail. We now also guard for recursive calls at
the beginning of gtk_tree_view_top_row_to_dy().
Rework the sort and filter models to store their reference to the parent
element as an array index instead of a pointer to an array element.
These pointers could become invalid with any array modification, whereas
indices do not.
If we have a level with zero visible nodes and the first node becomes
visible in that level, then parent has just become a "real" parent node.
In such a case we need to emit row-has-child-toggled. This only applies
to non-root levels that have a parent. This problem was also found when
writing the unit test, the respective cases in the unit test have been
corrected.
This fixes bugs:
Bug 372010 - Filtering not working properly
Bug 525965 - Filtered and sorted GtkTreeView is missing rows
When a filter function is used that determines the visibility property
of a node using whether or it it has children, the state of this node
very likely changes when the filter model receives a
row-has-child-toggled signal. Therefore, we need to handle state
changes in the row-has-child-toggled handler.
