edge.h

/* Copyright (C) 2018 The Qt Company Ltd. */

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#ifndef EDGE_H
#define EDGE_H


#include <QPoint>
#include <QPointF>
#include <QLine>
#include <QLineF>
#include <QtMath>
#include "graph.h"
#include <QGraphicsItem>
#include <QPainter>
#include "node.h"

class Node;

class Edge : public QGraphicsItem {
private:
    Node *source, *dest;
    int iSource, iDest;
    QPointF sourcePoint;
    QPointF destPoint;
    qreal arrowSize = 10;
    static qreal height, Pi;

public:
    Edge(int iSource, int iDest, Node *sourceNode, Node *destNode, Graph* graph, int w);
    Node *sourceNode() const;
    Node *destNode() const;
    Graph* graph;
    QString label;
    QColor color;

    void adjust();

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

    void setColor(QColor q);
protected:
    QRectF boundingRect() const override;
    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) override;
};

#endif // EDGE_H