Fix T54568: Undo memory de-duplication failed

Error in 651b8fb14e caused de-duplication to fail.
2018-04-14 12:30:14 +02:00
parent 332846b188
commit 2e9b92b5cc
3 changed files with 13 additions and 1 deletions
--- a/source/blender/blenkernel/intern/undo_system.c
+++ b/source/blender/blenkernel/intern/undo_system.c
@@ -500,6 +500,16 @@ UndoStep *BKE_undosys_step_find_by_name(UndoStack *ustack, const char *name)
 	return BLI_rfindstring(&ustack->steps, name, offsetof(UndoStep, name));
 }

+UndoStep *BKE_undosys_step_find_by_type(UndoStack *ustack, const UndoType *ut)
+{
+	for (UndoStep *us = ustack->steps.last; us; us = us->prev) {
+		if (us->type == ut) {
+			return us;
+		}
+	}
+	return NULL;
+}
+
 bool BKE_undosys_step_undo_with_data_ex(
        UndoStack *ustack, bContext *C, UndoStep *us,
        bool use_skip)