gobchartsgraphitems.h

/* Copyright (C) 2012 by William Hallatt.
 *
 * This file forms part of the "GobChartsWidget" library.
 *
 * This library is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 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 General Public License for more details.
 *
 * You should have downloaded a copy of the GNU General Public License
 * (GNUGPL.txt) and GNU Lesser General Public License (GNULGPL.txt)
 * along with this library.  If not, see <http://www.gnu.org/licenses/>.
 *
 * The official website for this project is www.goblincoding.com and,
 * although not compulsory, it would be appreciated if all works of whatever
 * nature referring to or using this library include a reference to this site.
 */

#ifndef GOBCHARTSGRAPHITEMS_H
#define GOBCHARTSGRAPHITEMS_H

#include <QObject>
#include <QMap>
#include <QModelIndex>
#include "utils/gobchartsnocopy.h"

class QGraphicsScene;
class QGraphicsItem;


class GobChartsGraphItems : public QObject,
                            public GobChartsNoCopy
{
  Q_OBJECT

public:
  explicit GobChartsGraphItems( QObject *parent = 0 );

  virtual ~GobChartsGraphItems();

  void addItemsToScene( QGraphicsScene *scene );

  void removeItemsFromScene( QGraphicsScene *scene );

  void setSelected( int categoryRow );

  void clearSelection();

  void addItem( const QModelIndex &valueIndex, QGraphicsItem *item, const QString &legendText );

  void deleteItems();

  QModelIndex getModelIndex( QGraphicsItem *item ) const;

  QModelIndex getModelIndex( const QString &text ) const;

  QRectF getItemRectF( const QModelIndex &index ) const;

  QRectF getItemRectF( const QString &text ) const;

  QString getItemLegend( QGraphicsItem *item ) const;

  void setDebugLoggingOn( bool logging );

signals:
  void lastDebugLogMsg( QString );

private:
  QMap< QModelIndex, QGraphicsItem* > m_graphItemMap;
  QMap< QString,     QGraphicsItem* > m_legendItemMap;
  bool m_loggingOn;
};

#endif // GOBCHARTSGRAPHITEMS_H