148 

   148 

   149     virtual void drawContentBackground(QPainter *painter,

   149     virtual void drawContentBackground(QPainter *painter,

   150                                        const QStyleOptionGraphicsItem &option) const;

   150                                        const QStyleOptionGraphicsItem &option) const;

   151 

   151 

   152     void updatePlaceholderDocProperties();

   152     void updatePlaceholderDocProperties();

   153 

   154 

   154     void _q_updateRequest(QRectF rect);

   155     void _q_updateRequest(QRectF rect);

   155     void _q_updateBlock(QTextBlock block);

   156     void _q_updateBlock(QTextBlock block);

   156     void _q_contentsChanged();

   157     void _q_contentsChanged();

   157     void _q_contentsChange(int position, int charsRemoved, int charsAdded);

   158     void _q_contentsChange(int position, int charsRemoved, int charsAdded);