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/****************************************************************************
**
** Copyright (C) 2007-2007 Trolltech ASA. All rights reserved.
**
** This file is part of the example classes of the Qt Toolkit.
**
** This file may be used under the terms of the GNU General Public
** License version 2.0 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 GNU
** General Public Licensing requirements will be met:
** http://www.trolltech.com/products/qt/opensource.html
**
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://www.trolltech.com/products/qt/licensing.html or contact the
** sales department at sales@trolltech.com.
**
** 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 ARROW_H
#define ARROW_H
#include <QGraphicsLineItem>
#include "diagramitem.h"
class QGraphicsPolygonItem;
class QGraphicsLineItem;
class QGraphicsScene;
class QRectF;
class QGraphicsSceneMouseEvent;
class QPainterPath;
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;
};
#endif
Copyright © 2007 Trolltech | Trademarks | Qt 4.3.0rc1 |