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slice model: Don't report excessive changes

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We were not skipping an unchanged initial segment
of the slice in some cases. Fix that.
This commit is contained in:
Matthias Clasen
2019-01-06 12:24:57 -05:00
parent 75a1bafcc0
commit ce1ac00c59
1 changed files with 7 additions and 1 deletions
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8
gtk/gtkslicelistmodel.c
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@@ -157,13 +157,19 @@ gtk_slice_list_model_items_changed_cb (GListModel *model,
else
{
guint n_after, n_before;
guint skip;
if (position > self->offset)
skip = position - self->offset;
else
skip = 0;
n_after = g_list_model_get_n_items (self->model);
n_before = n_after - added + removed;
n_after = CLAMP (n_after, self->offset, self->offset + self->size) - self->offset;
n_before = CLAMP (n_before, self->offset, self->offset + self->size) - self->offset;
g_list_model_items_changed (G_LIST_MODEL (self), 0, n_before, n_after);
g_list_model_items_changed (G_LIST_MODEL (self), skip, n_before - skip, n_after - skip);
}
}