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.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/Document.h b/src/Document.h
index 3b43852f0..cf5187ae2 100644
--- a/src/Document.h
+++ b/src/Document.h
@@ -235,6 +235,8 @@ public:
 	int IndentSize() { return actualIndentInChars; }
 
 private:
+	void CheckReadOnly();
+
 	charClassification WordCharClass(unsigned char ch);
 	bool IsWordStartAt(int pos);
 	bool IsWordEndAt(int pos);