File indexing completed on 2024-05-12 04:20:38

 /*
  * SPDX-FileCopyrightText: 2001-2015 Klaralvdalens Datakonsult AB. All rights reserved.
  *
  * This file is part of the KD Chart library.
  *
  * SPDX-License-Identifier: GPL-2.0-or-later
  */
 
 #ifndef REVERSEMAPPER_H
 #define REVERSEMAPPER_H
 
 #include <QModelIndex>
 #include <QHash>
 
 QT_BEGIN_NAMESPACE
 class QRectF;
 class QGraphicsScene;
 class QPolygonF;
 QT_END_NAMESPACE
 
 namespace KChart {
 
     class AbstractDiagram;
     class ChartGraphicsItem;
 
     /**
       * @brief The ReverseMapper stores information about objects on a chart and their respective model indexes
       * \internal
       */
     class ReverseMapper
     {
 
     public:
         ReverseMapper();
         explicit ReverseMapper( AbstractDiagram* diagram );
 
         ~ReverseMapper();
 
         void setDiagram( AbstractDiagram* diagram );
 
         void clear();
 
         QModelIndexList indexesAt( const QPointF& point ) const;
         QModelIndexList indexesIn( const QRect& rect ) const;
 
         QPolygonF polygon( int row, int column ) const;
         QRectF boundingRect( int row, int column ) const;
 
         // convenience methods:
         void addPolygon( int row, int column, const QPolygonF& polygon );
         void addRect( int row, int column, const QRectF& rect );
         void addCircle( int row, int column, const QPointF& location, const QSizeF& diameter );
         void addLine( int row, int column, const QPointF& from, const QPointF& to );
 
     private:
         void populateScene() const;
 
         AbstractDiagram* m_diagram;
         QHash<QModelIndex, QPolygonF> m_polygons;
         mutable QGraphicsScene* m_scene;
         mutable bool m_sceneDirty = true;
     };
 
 }
 
 #endif