X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2FUndo.h;h=6f6cca6e90e968ee46c87d591a27fe97f82fd0a4;hb=a41d589e851a956ff27235841e6330bab552c0fe;hp=59f3ca44fc93a58975ee459ffc9440e5889a5ac1;hpb=cc241bdaaf0f63daf5e1afb4d8623a2f075943e5;p=lyx.git

diff --git a/src/Undo.h b/src/Undo.h
index 59f3ca44fc..6f6cca6e90 100644
--- a/src/Undo.h
+++ b/src/Undo.h
@@ -96,6 +96,8 @@ public:
 	void endUndoGroup();
 	/// end the current undo group and set UndoElement::cur_after if necessary.
 	void endUndoGroup(CursorData const & cur_after);
+	/// return true if an undo group is open and contains at least one element
+	bool activeUndoGroup() const;
 
 	/// The general case: record undo information for an arbitrary range.
 	/**
@@ -135,15 +137,9 @@ private:
  */
 class UndoGroupHelper {
 public:
-	UndoGroupHelper(Buffer * buf) : buffer_(0)
-	{
-		resetBuffer(buf);
-	}
+	UndoGroupHelper(Buffer * buf = 0);
 
-	~UndoGroupHelper()
-	{
-		resetBuffer(0);
-	}
+	~UndoGroupHelper();
 
 	/** Close the current undo group if necessary and create a new one
 	 * for buffer \c buf.
@@ -151,7 +147,8 @@ public:
 	void resetBuffer(Buffer * buf);
 
 private:
-	Buffer * buffer_;
+	class Impl;
+	Impl * const d;
 };