Sets the visible function used when filtering the filter to be func.
The function should return TRUE if the given row should be visible and
FALSE otherwise.
If the condition calculated by the function changes over time (e.g.
because it depends on some global parameters), you must call
TreeModel.filterRefilter to keep the visibility information
of the model up-to-date.
Note that func is called whenever a row is inserted, when it may still
be empty. The visible function should therefore take special care of empty
rows, like in the example below.
static gboolean
visible_func (GtkTreeModel *model,
GtkTreeIter *iter,
gpointer data)
{
// Visible if row is non-empty and first column is “HI”
gchar *str;
gboolean visible = FALSE;
gtk_tree_model_get (model, iter, 0, &str, -1);
if (str && strcmp (str, "HI") == 0)
visible = TRUE;
g_free (str);
return visible;
}
Sets the visible function used when filtering the filter to be func. The function should return TRUE if the given row should be visible and FALSE otherwise.
If the condition calculated by the function changes over time (e.g. because it depends on some global parameters), you must call TreeModel.filterRefilter to keep the visibility information of the model up-to-date.
Note that func is called whenever a row is inserted, when it may still be empty. The visible function should therefore take special care of empty rows, like in the example below.
Note that TreeModel.filterSetVisibleFunc or TreeModel.filterSetVisibleColumn can only be called once for a given filter model.