|  | Home · All Classes · All Functions · Overviews

# diagramitem.h Example File
graphicsview/diagramscene/diagramitem.h

     /****************************************************************************
     **
     ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
     ** All rights reserved.
     ** Contact: Nokia Corporation (qt-info@nokia.com)
     **
     ** This file is part of the examples of the Qt Toolkit.
     **
     ** $QT_BEGIN_LICENSE:LGPL$
     ** Commercial Usage
     ** Licensees holding valid Qt Commercial licenses may use this file in
     ** accordance with the Qt Commercial License Agreement provided with the
     ** Software or, alternatively, in accordance with the terms contained in
     ** a written agreement between you and Nokia.
     **
     ** GNU Lesser General Public License Usage
     ** Alternatively, this file may be used under the terms of the GNU Lesser
     ** General Public License version 2.1 as published by the Free Software
     ** Foundation and appearing in the file LICENSE.LGPL included in the
     ** packaging of this file.  Please review the following information to
     ** ensure the GNU Lesser General Public License version 2.1 requirements
     ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
     **
     ** In addition, as a special exception, Nokia gives you certain additional
     ** rights.  These rights are described in the Nokia Qt LGPL Exception
     ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
     **
     ** GNU General Public License Usage
     ** Alternatively, this file may be used under the terms of the GNU
     ** General Public License version 3.0 as published by the Free Software
     ** Foundation and appearing in the file LICENSE.GPL included in the
     ** packaging of this file.  Please review the following information to
     ** ensure the GNU General Public License version 3.0 requirements will be
     ** met: http://www.gnu.org/copyleft/gpl.html.
     **
     ** If you have questions regarding the use of this file, please contact
     ** Nokia at qt-info@nokia.com.
     ** $QT_END_LICENSE$
     **
     ****************************************************************************/

     #ifndef DIAGRAMITEM_H
     #define DIAGRAMITEM_H

     #include <QGraphicsPixmapItem>
     #include <QList>

     class QPixmap;
     class QGraphicsItem;
     class QGraphicsScene;
     class QTextEdit;
     class QGraphicsSceneMouseEvent;
     class QMenu;
     class QGraphicsSceneContextMenuEvent;
     class QPainter;
     class QStyleOptionGraphicsItem;
     class QWidget;
     class QPolygonF;

     class Arrow;

     class DiagramItem : public QGraphicsPolygonItem
     {
     public:
         enum { Type = UserType + 15 };
         enum DiagramType { Step, Conditional, StartEnd, Io };

         DiagramItem(DiagramType diagramType, QMenu *contextMenu,
             QGraphicsItem *parent = 0, QGraphicsScene *scene = 0);

         void removeArrow(Arrow *arrow);
         void removeArrows();
         DiagramType diagramType() const
             { return myDiagramType; }
         QPolygonF polygon() const
             { return myPolygon; }
         void addArrow(Arrow *arrow);
         QPixmap image() const;
         int type() const
             { return Type;}

     protected:
         void contextMenuEvent(QGraphicsSceneContextMenuEvent *event);
         QVariant itemChange(GraphicsItemChange change, const QVariant &value);

     private:
         DiagramType myDiagramType;
         QPolygonF myPolygon;
         QMenu *myContextMenu;
         QList<Arrow *> arrows;
     };

     #endif