2018-11-13 16:02:26 -05:00
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/*******************************************************************************
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* gui/elastic/edge.h *
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* *
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* Copyright (c) 2012, RetroShare Team <retroshare.project@gmail.com> *
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* *
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* This program is free software: you can redistribute it and/or modify *
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* it under the terms of the GNU Affero General Public License as *
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* published by the Free Software Foundation, either version 3 of the *
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* License, or (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU Affero General Public License for more details. *
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* *
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* You should have received a copy of the GNU Affero General Public License *
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* along with this program. If not, see <https://www.gnu.org/licenses/>. *
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* *
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*******************************************************************************/
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// This code is inspired from http://doc.qt.io/qt-5/qtwidgets-graphicsview-elasticnodes-edge-h.html
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2010-10-22 16:47:08 -04:00
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#ifndef EDGE_H
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#define EDGE_H
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#include <QGraphicsItem>
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class Node;
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class Edge : public QGraphicsItem
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{
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public:
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Edge(Node *sourceNode, Node *destNode);
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~Edge();
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Node *sourceNode() const;
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void setSourceNode(Node *node);
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Node *destNode() const;
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void setDestNode(Node *node);
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void adjust();
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enum { Type = UserType + 2 };
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int type() const { return Type; }
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protected:
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QRectF boundingRect() const;
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void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
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private:
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Node *source, *dest;
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QPointF sourcePoint;
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QPointF destPoint;
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qreal arrowSize;
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};
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#endif
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