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46 lines
1.0 KiB
C
46 lines
1.0 KiB
C
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// Copyright (C) 2016 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
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#ifndef NODE_H
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#define NODE_H
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#include <QGraphicsItem>
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#include <QList>
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class Edge;
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class GraphWidget;
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//! [0]
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class Node : public QGraphicsItem
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{
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public:
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Node(GraphWidget *graphWidget);
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void addEdge(Edge *edge);
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QList<Edge *> edges() const;
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enum { Type = UserType + 1 };
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int type() const override { return Type; }
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void calculateForces();
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bool advancePosition();
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QRectF boundingRect() const override;
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QPainterPath shape() const override;
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void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) override;
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protected:
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QVariant itemChange(GraphicsItemChange change, const QVariant &value) override;
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void mousePressEvent(QGraphicsSceneMouseEvent *event) override;
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void mouseReleaseEvent(QGraphicsSceneMouseEvent *event) override;
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private:
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QList<Edge *> edgeList;
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QPointF newPos;
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GraphWidget *graph;
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};
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//! [0]
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#endif // NODE_H
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