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/*************************************************************** |
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QGVCore |
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Copyright (c) 2014, Bergont Nicolas, All rights reserved. |
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This library is free software; you can redistribute it and/or |
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modify it under the terms of the GNU Lesser General Public |
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License as published by the Free Software Foundation; either |
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version 3.0 of the License, or (at your option) any later version. |
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This library 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 GNU |
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Lesser General Public License for more details. |
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You should have received a copy of the GNU Lesser General Public |
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License along with this library. |
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***************************************************************/ |
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#ifndef QGVEDGE_H |
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#define QGVEDGE_H |
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#include <QGraphicsItem> |
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#include <QPen> |
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#include "qgv.h" |
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class QGVNode; |
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class QGVScene; |
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class QGVEdgePrivate; |
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/** |
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* @brief Edge item |
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* |
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*/ |
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class QGVCORE_EXPORT QGVEdge : public QGraphicsItem { |
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public: |
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~QGVEdge(); |
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QString label() const; |
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QRectF boundingRect() const; |
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QPainterPath shape() const; |
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void setLabel(const QString &label); |
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void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, |
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QWidget *widget = 0); |
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void setAttribute(const QString &name, const QString &value); |
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QString getAttribute(const QString &name) const; |
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void updateLayout(); |
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enum { Type = UserType + 3 }; |
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int type() const { return Type; } |
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private: |
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QGVEdge(QGVEdgePrivate *edge, QGVScene *scene); |
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QPolygonF toArrow(const QLineF &normal) const; |
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friend class QGVScene; |
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// friend class QGVSubGraph; |
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QGVScene *_scene; |
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QGVEdgePrivate *_edge; |
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QPainterPath _path; |
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QPen _pen; |
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QPolygonF _head_arrow; |
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QPolygonF _tail_arrow; |
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QString _label; |
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QRectF _label_rect; |
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}; |
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#endif // QGVEDGE_H |
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