1 files changed, 8 insertions, 3 deletions
diff --git a/src/gui/text/qtextdocument_p.h b/src/gui/text/qtextdocument_p.h
index f068477..3c207ff 100644
--- a/src/gui/text/qtextdocument_p.h
+++ b/src/gui/text/qtextdocument_p.h
@@ -139,7 +139,9 @@ public:
         MoveCursor = 1
     };
     quint16 command;
-    quint8 block; ///< All undo commands that have this set to zero/false are combined with the preceding command on undo/redo.
+    uint block_part : 1; // all commands that are part of an undo block (including the first and the last one) have this set to 1
+    uint block_end : 1; // the last command in an undo block has this set to 1.
+    uint block_padding : 6; // padding since block used to be a quint8
     quint8 operation;
     int format;
     quint32 strPos;
@@ -202,6 +204,8 @@ public:
     inline void beginEditBlock() { editBlock++; }
     void joinPreviousEditBlock();
     void endEditBlock();
+    inline void beginEdit() { inEdit = true; }
+    void finishEdit();
     inline bool isInEditBlock() const { return editBlock; }
     void enableUndoRedo(bool enable);
     inline bool isUndoRedoEnabled() const { return undoEnabled; }
@@ -334,8 +338,9 @@ public:
     QCss::StyleSheet parsedDefaultStyleSheet;
 #endif
     int maximumBlockCount;
-    bool needsEnsureMaximumBlockCount;
-    bool inContentsChange;
+    uint needsEnsureMaximumBlockCount : 1;
+    uint inContentsChange : 1;
+    uint inEdit : 1; // between beginEdit() and finishEdit()
     QSizeF pageSize;
     QString title;
     QString url;