GimpUndo * gimp_undo_stack_free_bottom (GimpUndoStack *stack, GimpUndoMode undo_mode) { GimpUndo *undo; gint n_children; g_return_val_if_fail (GIMP_IS_UNDO_STACK (stack), NULL); n_children = gimp_container_num_children (GIMP_CONTAINER (stack->undos)); undo = (GimpUndo *) gimp_container_get_child_by_index (GIMP_CONTAINER (stack->undos), n_children - 1); if (undo) { gimp_container_remove (GIMP_CONTAINER (stack->undos), GIMP_OBJECT (undo)); gimp_undo_free (undo, undo_mode); return undo; } return NULL; }
static void gimp_undo_stack_free (GimpUndo *undo, GimpUndoMode undo_mode) { GimpUndoStack *stack = GIMP_UNDO_STACK (undo); GList *list; for (list = GIMP_LIST (stack->undos)->queue->head; list; list = g_list_next (list)) { GimpUndo *child = list->data; gimp_undo_free (child, undo_mode); g_object_unref (child); } gimp_container_clear (stack->undos); }
GimpUndo * gimp_undo_stack_free_bottom (GimpUndoStack *stack, GimpUndoMode undo_mode) { GimpUndo *undo; g_return_val_if_fail (GIMP_IS_UNDO_STACK (stack), NULL); undo = GIMP_UNDO (gimp_container_get_last_child (stack->undos)); if (undo) { gimp_container_remove (stack->undos, GIMP_OBJECT (undo)); gimp_undo_free (undo, undo_mode); return undo; } return NULL; }
static void gimp_undo_stack_free (GimpUndo *undo, GimpUndoMode undo_mode) { GimpUndoStack *stack = GIMP_UNDO_STACK (undo); GList *list; for (list = GIMP_LIST (stack->undos)->list; list; list = g_list_next (list)) { GimpUndo *child = list->data; gimp_undo_free (child, undo_mode); g_object_unref (child); } while (GIMP_LIST (stack->undos)->list) gimp_container_remove (GIMP_CONTAINER (stack->undos), GIMP_LIST (stack->undos)->list->data); }