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gtktreemodelfilter: fix corner case in rows-reordered handling

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If the level to be reordered did not contain an elt with offset == 0
(for example if that node was hidden), the first reference was not
correctly transferred.

A unit test for this has been added in a previous commit.
This commit is contained in:
Kristian Rietveld 2011-09-11 12:00:00 +02:00
parent 449c4bc362
commit 9ed76387fa
1 changed files with 7 additions and 9 deletions
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16
gtk/gtktreemodelfilter.c
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@ -2698,7 +2698,7 @@ gtk_tree_model_filter_rows_reordered (GtkTreeModel *c_model,
GSequence *tmp_seq;
GSequenceIter *tmp_end_iter;
GSequenceIter *old_first_elt = NULL;
GSequenceIter *old_first_siter = NULL;
gint *tmp_array;
gint i, elt_count;
gint length;
@ -2818,6 +2818,8 @@ gtk_tree_model_filter_rows_reordered (GtkTreeModel *c_model,
tmp_array = g_new (gint, g_sequence_get_length (level->visible_seq));
elt_count = 0;
old_first_siter = g_sequence_get_iter_at_pos (level->seq, 0);
for (i = 0; i < length; i++)
{
FilterElt *elt;
@ -2827,10 +2829,6 @@ gtk_tree_model_filter_rows_reordered (GtkTreeModel *c_model,
if (elt == NULL)
continue;
/* Keep a reference if this elt has old_pos == 0 */
if (new_order[i] == 0)
old_first_elt = siter;
/* Only for visible items an entry should be present in the order array
* to be emitted.
*/
@ -2848,15 +2846,15 @@ gtk_tree_model_filter_rows_reordered (GtkTreeModel *c_model,
g_sequence_sort (level->visible_seq, filter_elt_cmp, NULL);
/* Transfer the reference from the old item at position 0 to the
* new item at position 0.
* new item at position 0, unless the old item at position 0 is also
* at position 0 in the new sequence.
*/
if (old_first_elt && g_sequence_iter_get_position (old_first_elt))
if (g_sequence_iter_get_position (old_first_siter) != 0)
gtk_tree_model_filter_level_transfer_first_ref (filter,
level,
old_first_elt,
old_first_siter,
g_sequence_get_iter_at_pos (level->seq, 0));
/* emit rows_reordered */
if (g_sequence_get_length (level->visible_seq) > 0)
{