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edge.h Example File
graphicsview/elasticnodes/edge.h

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    ** Copyright (C) 2006-2006 Trolltech ASA. All rights reserved.
    **
    ** This file is part of the example classes of the Qt Toolkit.
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    ** License version 2.0 as published by the Free Software Foundation
    ** and appearing in the file LICENSE.GPL included in the packaging of
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    #ifndef EDGE_H
    #define EDGE_H

    #include <QGraphicsItem>

    class Node;

    class Edge : public QGraphicsItem
    {
    public:
        Edge(Node *sourceNode, Node *destNode);
        ~Edge();

        Node *sourceNode() const;
        void setSourceNode(Node *node);

        Node *destNode() const;
        void setDestNode(Node *node);

        void adjust();

        enum { Type = UserType + 2 };
        int type() const { return Type; }

    protected:
        QRectF boundingRect() const;
        void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);

    private:
        Node *source, *dest;

        QPointF sourcePoint;
        QPointF destPoint;
        qreal arrowSize;
    };

    #endif


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Qt 4.2.0-snapshot-20060701