From 6d34f883ba3ce2474df90432cc4aa387e9093321 Mon Sep 17 00:00:00 2001
From: KatolaZ <katolaz@freaknet.org>
Date: Thu, 1 Aug 2019 07:47:43 +0100
Subject: add undo support for crop-to-visible

---
 lineset.c | 1 -
 screen.c  | 2 ++
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/lineset.c b/lineset.c
index 4b5ad8c..0d810b8 100644
--- a/lineset.c
+++ b/lineset.c
@@ -128,7 +128,6 @@ void paste_region(int x1, int y1){
 
 void copy_lines_to_ring(int y1, int y2, int which){
 	int i, len, idx;
-	int offset;
 	lineset_t *tmp;	
 
 	if (y1 > y2){
diff --git a/screen.c b/screen.c
index b769641..9a0ccb3 100644
--- a/screen.c
+++ b/screen.c
@@ -462,7 +462,9 @@ void crop_to_nonblank(){
 #ifdef DEBUG
 	fprintf(stderr, "crop rectangle: (%d, %d)-(%d, %d)\n", x1, y1, x2, y2);
 #endif
+	copy_lines_to_ring(0, y2, PRV_STATE);
 	crop_to_rect(x1, y1, x2, y2);
+	copy_lines_to_ring(0, y2, NEW_STATE);
 	modified=1;
 	redraw();
 }
-- 
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