1 files changed, 94 insertions, 0 deletions
diff --git a/examples/graphicsview/diagramscene/arrow.h b/examples/graphicsview/diagramscene/arrow.h
new file mode 100644
index 0000000..f624eb1
--- /dev/null
+++ b/examples/graphicsview/diagramscene/arrow.h
@@ -0,0 +1,94 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, 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 are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef ARROW_H
+#define ARROW_H
+
+#include <QGraphicsLineItem>
+
+#include "diagramitem.h"
+
+QT_BEGIN_NAMESPACE
+class QGraphicsPolygonItem;
+class QGraphicsLineItem;
+class QGraphicsScene;
+class QRectF;
+class QGraphicsSceneMouseEvent;
+class QPainterPath;
+QT_END_NAMESPACE
+
+//! [0]
+class Arrow : public QGraphicsLineItem
+{
+public:
+    enum { Type = UserType + 4 };
+
+    Arrow(DiagramItem *startItem, DiagramItem *endItem,
+      QGraphicsItem *parent = 0, QGraphicsScene *scene = 0);
+
+    int type() const
+        { return Type; }
+    QRectF boundingRect() const;
+    QPainterPath shape() const;
+    void setColor(const QColor &color)
+        { myColor = color; }
+    DiagramItem *startItem() const
+        { return myStartItem; }
+    DiagramItem *endItem() const
+        { return myEndItem; }
+
+
+public slots:
+    void updatePosition();
+
+protected:
+    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
+               QWidget *widget = 0);
+
+private:
+    DiagramItem *myStartItem;
+    DiagramItem *myEndItem;
+    QColor myColor;
+    QPolygonF arrowHead;
+};
+//! [0]
+
+#endif