From 242a9e572981a7654c91fabb22ba59f0ce8045f1 Mon Sep 17 00:00:00 2001
From: tildearrow <me@tildearrow.org>
Date: Sat, 23 Dec 2023 18:25:43 -0500
Subject: [PATCH] prepare to fix paate overflow undo corruption

---
 src/gui/gui.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/gui/gui.h b/src/gui/gui.h
index 1cfbfc011..39fac0132 100644
--- a/src/gui/gui.h
+++ b/src/gui/gui.h
@@ -885,6 +885,14 @@ struct SelectionPoint {
     xCoarse(0), xFine(0), y(0) {}
 };
 
+struct UndoRegion {
+  struct UndoRegionPoint {
+    int ord, x, y;
+    UndoRegionPoint():
+      ord(0), x(0), y(0) {}
+  } begin, end;
+};
+
 enum ActionType {
   GUI_UNDO_CHANGE_ORDER,
   GUI_UNDO_PATTERN_EDIT,