From 4a66b9e90218517ee62ce77ac1733e30976065ea Mon Sep 17 00:00:00 2001
From: nyamatongwe <devnull@localhost>
Date: Sat, 7 May 2005 10:50:38 +0000
Subject: Patch from Robert that avoids slow performance for multiple step undo
 or redo by only modifying the scroll bars at the end. When document is read
 only, undo and redo send a SCN_MODIFYATTEMPTRO notification.

---
 src/CellBuffer.cxx | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'src/CellBuffer.cxx')

diff --git a/src/CellBuffer.cxx b/src/CellBuffer.cxx
index 772f48e6e..2bb4f5a6c 100644
--- a/src/CellBuffer.cxx
+++ b/src/CellBuffer.cxx
@@ -1024,7 +1024,7 @@ void CellBuffer::DeleteUndoHistory() {
 }
 
 bool CellBuffer::CanUndo() {
-	return (!readOnly) && (uh.CanUndo());
+	return uh.CanUndo();
 }
 
 int CellBuffer::StartUndo() {
@@ -1052,7 +1052,7 @@ void CellBuffer::PerformUndoStep() {
 }
 
 bool CellBuffer::CanRedo() {
-	return (!readOnly) && (uh.CanRedo());
+	return uh.CanRedo();
 }
 
 int CellBuffer::StartRedo() {
-- 
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