# ReverseMapper.h

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    00001 /* -*- Mode: C++ -*-
    00002    KDChart - a multi-platform charting engine
    00003    */
    00004
    00005 /****************************************************************************
    00006  ** Copyright (C) 2005-2007 Klarälvdalens Datakonsult AB.  All rights reserved.
    00007  **
    00008  ** This file is part of the KD Chart library.
    00009  **
    00010  ** This file may be distributed and/or modified under the terms of the
    00011  ** GNU General Public License version 2 as published by the Free Software
    00012  ** Foundation and appearing in the file LICENSE.GPL included in the
    00013  ** packaging of this file.
    00014  **
    00015  ** Licensees holding valid commercial KD Chart licenses may use this file in
    00016  ** accordance with the KD Chart Commercial License Agreement provided with
    00017  ** the Software.
    00018  **
    00019  ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
    00020  ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
    00021  **
    00022  ** See http://www.kdab.net/kdchart for
    00023  **   information about KD Chart Commercial License Agreements.
    00024  **
    00025  ** Contact info@kdab.net if any conditions of this
    00026  ** licensing are not clear to you.
    00027  **
    00028  **********************************************************************/
    00029
    00030 #ifndef REVERSEMAPPER_H
    00031 #define REVERSEMAPPER_H
    00032
    00033 #include <QModelIndex>
    00034
    00035 class QRectF;
    00036 class QGraphicsScene;
    00037
    00038 namespace KDChart {
    00039
    00040     class AbstractDiagram;
    00041     class ChartGraphicsItem;
    00042
    00047     class ReverseMapper
    00048     {
    00049
    00050     public:
    00051         ReverseMapper();
    00052         explicit ReverseMapper( AbstractDiagram* diagram );
    00053
    00054         ~ReverseMapper();
    00055
    00056         void setDiagram( AbstractDiagram* diagram );
    00057
    00058         void clear();
    00059
    00060         QModelIndexList indexesAt( const QPointF& point ) const;
    00061         QModelIndexList indexesIn( const QRect& rect ) const;
    00062
    00063         void addItem( ChartGraphicsItem* item );
    00064
    00065         // convenience methods:
    00066         void addPolygon( int row, int column, const QPolygonF& polygon );
    00067         void addRect( int row, int column, const QRectF& rect );
    00068         void addCircle( int row, int column, const QPointF& location, const QSizeF& diameter );
    00069         void addLine( int row, int column, const QPointF& from, const QPointF& to );
    00070
    00071     private:
    00072         QGraphicsScene* m_scene;
    00073         AbstractDiagram* m_diagram;
    00074     };
    00075
    00076 }
    00077
    00078 #endif