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# diagramitem.h Example File
tools/undoframework/diagramitem.h

     /****************************************************************************
     **
     ** Copyright (C) 2007-$THISYEAR$ $TROLLTECH$. All rights reserved.
     **
     ** This file is part of the $MODULE$ of the Qt Toolkit.
     **
     ** $TROLLTECH_DUAL_LICENSE$
     **
     ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
     ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
     **
     ****************************************************************************/

     #ifndef DIAGRAMITEM_H
     #define DIAGRAMITEM_H

     #include <QGraphicsPolygonItem>

     class QGraphicsItem;
     class QGraphicsScene;
     class QGraphicsSceneMouseEvent;
     class QPointF;

     class DiagramItem : public QGraphicsPolygonItem
     {
     public:
         enum { Type = UserType + 1 };
         enum DiagramType { Box, Triangle };

         DiagramItem(DiagramType diagramType, QGraphicsItem *item = 0,
                 QGraphicsScene *scene = 0);

         DiagramType diagramType() const {
             return polygon() == boxPolygon ? Box : Triangle;
         }
         int type() const { return Type; }

     private:
         QPolygonF boxPolygon;
         QPolygonF trianglePolygon;
     };

     #endif