Undo System: add function to print undo steps

Useful for debugging.

1 files changed, 7 insertions, 0 deletions

diff --git a/source/blender/makesrna/intern/rna_wm_api.c b/source/blender/makesrna/intern/rna_wm_api.c
index 4e87d06db80..0fffadfa158 100644
--- a/source/blender/makesrna/intern/rna_wm_api.c
+++ b/source/blender/makesrna/intern/rna_wm_api.c
@@ -66,6 +66,7 @@ const EnumPropertyItem rna_enum_window_cursor_items[] = {
 #ifdef RNA_RUNTIME
 
 #include "BKE_context.h"
+#include "BKE_undo_system.h"
 
 #include "WM_types.h"
 
@@ -457,6 +458,11 @@ static void rna_PieMenuEnd(bContext *C, PointerRNA *handle)
 	UI_pie_menu_end(C, handle->data);
 }
 
+static void rna_WindowManager_print_undo_steps(wmWindowManager *wm)
+{
+	BKE_undosys_print(wm->undo_stack);
+}
+
 static PointerRNA rna_WindoManager_operator_properties_last(const char *idname)
 {
 	wmOperatorType *ot = WM_operatortype_find(idname, true);
@@ -783,6 +789,7 @@ void RNA_api_wm(StructRNA *srna)
 	RNA_def_parameter_flags(parm, PROP_NEVER_NULL, PARM_RNAPTR);
 	RNA_def_function_return(func, parm);
 
+	RNA_def_function(srna, "print_undo_steps", "rna_WindowManager_print_undo_steps");
 }
 
 void RNA_api_operator(StructRNA *srna)