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

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 QGVSUBGRAPH_H

#define QGVSUBGRAPH_H

#include <QGraphicsItem>

#include <QPen>

#include "qgv.h"

class QGVNode;

class QGVEdge;

class QGVScene;

class QGVGraphPrivate;

/**

 * @brief SubGraph item

 *

 */

class QGVCORE_EXPORT QGVSubGraph : public QGraphicsItem {

 public:

  ~QGVSubGraph();

  QString name() const;

  QGVNode *addNode(const QString &label);

  QGVSubGraph *addSubGraph(const QString &name, bool cluster = true);

  QRectF boundingRect() const;

  void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,

             QWidget *widget = 0);

  void setAttribute(const QString &name, const QString &value);

  QString getAttribute(const QString &name) const;

  void updateLayout();

  enum { Type = UserType + 4 };

 private:

  friend class QGVScene;

  QGVSubGraph(QGVGraphPrivate *subGraph, QGVScene *scene);

  double _height, _width;

  QPen _pen;

  QBrush _brush;

  QString _label;

  QRectF _label_rect;

  QGVScene *_scene;

  QGVGraphPrivate *_sgraph;

  QList<QGVNode *> _nodes;

};

#endif  // QGVSUBGRAPH_H