QGVNode.h

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/***************************************************************
QGVCore
Copyright (c) 2014, Bergont Nicolas, All rights reserved.
 
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 3.0 of the License, or (at your option) any later version.
 
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
 
You should have received a copy of the GNU Lesser General Public
License along with this library.
***************************************************************/
#ifndef QGVNODE_H
#define QGVNODE_H
 
#include <QGraphicsItem>
#include <QPen>
 
#include "qgv.h"
 
class QGVEdge;
class QGVScene;
class QGVNodePrivate;

class QGVCORE_EXPORT QGVNode : public QGraphicsItem {
 public:
  ~QGVNode();
 
  QString label() const;
  void setLabel(const QString& label);
 
  QRectF boundingRect() const;
  void paint(QPainter* painter, const QStyleOptionGraphicsItem* option,
             QWidget* widget = 0);
  void setAttribute(const QString& label, const QString& value);
  QString getAttribute(const QString& name) const;
 
  QString posToAttributeString() const;
 
  void setIcon(const QImage& icon);
 
  enum { Type = UserType + 2 };
  int type() const { return Type; }
 
  void updateLayout();
 
 protected:
  QVariant itemChange(GraphicsItemChange change, const QVariant& value);
 
 private:
  friend class QGVScene;
  friend class QGVSubGraph;
  QGVNode(QGVNodePrivate* node, QGVScene* scene);
 
  // Not implemented in QGVNode.cpp
  //        QPainterPath makeShape(Agnode_t* node) const;
  //        QPolygonF makeShapeHelper(Agnode_t* node) const;
 
  QPainterPath _path;
  QPen _pen;
  QBrush _brush;
  QImage _icon;
 
  QGVScene* _scene;
  QGVNodePrivate* _node;
};
 
#endif  // QGVNODE_H