X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2FUndo.h;h=6f6cca6e90e968ee46c87d591a27fe97f82fd0a4;hb=a41d589e851a956ff27235841e6330bab552c0fe;hp=1bd6450d7c3a03749952c322961a87c6d51e1099;hpb=b63421b7dc65e0c721f8928d1330b9bb2cff43d8;p=lyx.git

diff --git a/src/Undo.h b/src/Undo.h
index 1bd6450d7c..6f6cca6e90 100644
--- a/src/Undo.h
+++ b/src/Undo.h
@@ -47,6 +47,9 @@ enum UndoKind {
 
 class Undo
 {
+	/// noncopyable
+	Undo(Undo const &);
+	void operator=(Undo const &);
 public:
 
 	Undo(Buffer &);
@@ -85,7 +88,7 @@ public:
 	/**
 	 * This cursor takes precedence over what is passed to recordUndo.
 	 * In the case of nested groups, only the first cur_before is
-	 * taken in account. The cursor is reset at the end of the
+	 * taken into account. The cursor is reset at the end of the
 	 * top-level group.
 	 */
 	void beginUndoGroup(CursorData const & cur_before);
@@ -93,6 +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.
 	/**
@@ -132,15 +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.
@@ -148,7 +147,8 @@ public:
 	void resetBuffer(Buffer * buf);
 
 private:
-	Buffer * buffer_;
+	class Impl;
+	Impl * const d;
 };