examples/graphicsview/diagramscene/diagramitem.h
changeset 0 1918ee327afb
child 4 3b1da2848fc7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/examples/graphicsview/diagramscene/diagramitem.h	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,97 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 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.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** 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.
+**
+** 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>
+
+QT_BEGIN_NAMESPACE
+class QPixmap;
+class QGraphicsItem;
+class QGraphicsScene;
+class QTextEdit;
+class QGraphicsSceneMouseEvent;
+class QMenu;
+class QGraphicsSceneContextMenuEvent;
+class QPainter;
+class QStyleOptionGraphicsItem;
+class QWidget;
+class QPolygonF;
+QT_END_NAMESPACE
+
+class Arrow;
+
+//! [0]
+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;
+};
+//! [0]
+
+#endif