qgstilecache.h

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/***************************************************************************
  qgstilecache.h
  --------------------------------------
  Date                 : September 2016
  Copyright            : (C) 2016 by Martin Dobias
  Email                : wonder dot sk at gmail dot com
 ***************************************************************************
 *                                                                         *
 *   This program 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 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/
 
#ifndef QGSTILECACHE_H
#define QGSTILECACHE_H
 
#include "qgis_core.h"
#include <QCache>
#include <QMutex>
 
class QImage;
class QUrl;
 
#define SIP_NO_FILE
 
class CORE_EXPORT QgsTileCache
{
  public:
 
    static void insertTile( const QUrl &url, const QImage &image );
 
    static bool tile( const QUrl &url, QImage &image );
 
    static int totalCost() { QMutexLocker locker( &sTileCacheMutex ); return sTileCache.totalCost(); }
    static int maxCost() { QMutexLocker locker( &sTileCacheMutex ); return sTileCache.maxCost(); }
 
  private:
    static QCache<QUrl, QImage> sTileCache;
    static QMutex sTileCacheMutex;
};
 
#endif // QGSTILECACHE_H