/***************************************************************

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;

/**

 * @brief Node item

 *

 */

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 };

  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