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#ifndef EDGE_H
#define EDGE_H
#include "graphelementdata.h"
#include "node.h"
#include <QObject>
#include <QPointF>
class Edge : public QObject
{
Q_OBJECT
public:
explicit Edge(Node *s, Node *t, QObject *parent = 0);
~Edge();
Node *source() const;
Node *target() const;
bool isSelfLoop();
bool isStraight();
GraphElementData *data() const;
void setData(GraphElementData *data);
QString sourceAnchor() const;
void setSourceAnchor(const QString &sourceAnchor);
QString targetAnchor() const;
void setTargetAnchor(const QString &targetAnchor);
Node *edgeNode() const;
void setEdgeNode(Node *edgeNode);
bool hasEdgeNode();
void updateControls();
void setAttributesFromData();
void updateData();
QPointF head() const;
QPointF tail() const;
QPointF cp1() const;
QPointF cp2() const;
QPointF mid() const;
int bend() const;
int inAngle() const;
int outAngle() const;
float weight() const;
bool basicBendMode() const;
float cpDist() const;
void setBend(int bend);
void setInAngle(int inAngle);
void setOutAngle(int outAngle);
void setWeight(float weight);
signals:
public slots:
private:
QString _sourceAnchor;
QString _targetAnchor;
// owned
Node *_edgeNode;
GraphElementData *_data;
// referenced
Node *_source;
Node *_target;
bool _dirty;
bool _basicBendMode;
int _bend;
int _inAngle;
int _outAngle;
float _weight;
float _cpDist;
QPointF _head;
QPointF _tail;
QPointF _cp1;
QPointF _cp2;
QPointF _mid;
};
#endif // EDGE_H
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