/****************************************************************************
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** Copyright (C) 2006-2007 Trolltech ASA. All rights reserved.
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** This file is part of the example classes of the Qt Toolkit.
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#ifndef GRAPHWIDGET_H
#define GRAPHWIDGET_H

#include <QtGui/QGraphicsView>
#include <string>
#include <map>

class Node;
class Edge;

class GraphWidget : public QGraphicsView
{
    Q_OBJECT

public:
    GraphWidget(QWidget *parent);

    void itemMoved();

    bool clearGraph();
    void addNode(uint32_t type, std::string id, std::string name);
    void addEdge(std::string id1, std::string id2);

protected:
    void keyPressEvent(QKeyEvent *event);
    void timerEvent(QTimerEvent *event);
    void wheelEvent(QWheelEvent *event);
    void drawBackground(QPainter *painter, const QRectF &rect);

    void scaleView(qreal scaleFactor);

private:
    int timerId;
    Node *centerNode;

    std::map<std::string, Node *> nodeMap;
    std::list<Edge *> edgeList;
};

#endif