Quantum GIS API Documentation  1.8
src/core/qgscrscache.h
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00001 /***************************************************************************
00002                               qgscrscache.h
00003                               --------------
00004   begin                : September 6th, 2011
00005   copyright            : (C) 2011 by Marco Hugentobler
00006   email                : marco dot hugentobler at sourcepole dot ch
00007  ***************************************************************************/
00008 
00009 /***************************************************************************
00010  *                                                                         *
00011  *   This program is free software; you can redistribute it and/or modify  *
00012  *   it under the terms of the GNU General Public License as published by  *
00013  *   the Free Software Foundation; either version 2 of the License, or     *
00014  *   (at your option) any later version.                                   *
00015  *                                                                         *
00016  ***************************************************************************/
00017 
00018 #ifndef QGSCRSCACHE_H
00019 #define QGSCRSCACHE_H
00020 
00021 #include "qgscoordinatereferencesystem.h"
00022 #include <QHash>
00023 
00024 class CORE_EXPORT QgsCRSCache
00025 {
00026   public:
00027     static QgsCRSCache* instance();
00028     ~QgsCRSCache();
00030     const QgsCoordinateReferenceSystem& crsByAuthId( const QString& authid );
00031     const QgsCoordinateReferenceSystem& crsByEpsgId( long epgs );
00032 
00033   protected:
00034     QgsCRSCache();
00035 
00036   private:
00037     static QgsCRSCache* mInstance;
00038     QHash< QString, QgsCoordinateReferenceSystem > mCRS;
00040     QgsCoordinateReferenceSystem mInvalidCRS;
00041 };
00042 
00043 #endif // QGSCRSCACHE_H
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