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+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtLocation module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** This file may be used under the terms of the GNU Lesser General Public
+** License version 2.1 as published by the Free Software Foundation and
+** appearing in the file LICENSE.LGPL included in the packaging of this
+** file. Please review the following information to ensure the GNU Lesser
+** General Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#ifndef QGEOTILECACHE_P_H
+#define QGEOTILECACHE_P_H
+
+//
+// W A R N I N G
+// -------------
+//
+// This file is not part of the Qt API. It exists purely as an
+// implementation detail. This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <QtLocation/qlocationglobal.h>
+
+#include <QObject>
+#include <QCache>
+#include <QSet>
+
+#include "qgeomappingmanager.h"
+
+QT_BEGIN_NAMESPACE
+
+class QGeoMappingManager;
+
+class QGeoTileSpec;
+class QGeoTile;
+
+class TileDisk;
+class TileMemory;
+class TileTexture;
+
+class QGLSceneNode;
+
+class QPixmap;
+class QThread;
+
+class Q_LOCATION_EXPORT QGeoTileCache : public QObject
+{
+ Q_OBJECT
+public:
+ QGeoTileCache(const QString &directory = QString(), QObject *parent = 0);
+ ~QGeoTileCache();
+
+ void setMaxDiskUsage(int diskUsage);
+ int maxDiskUsage() const;
+ int diskUsage() const;
+
+ void setMaxMemoryUsage(int memoryUsage);
+ int maxMemoryUsage() const;
+ int memoryUsage() const;
+
+ void setMaxTextureUsage(int textureUsage);
+ int maxTextureUsage() const;
+ int textureUsage() const;
+
+ void GLContextAvailable(QGLSceneNode *parentNode);
+
+ bool contains(const QGeoTileSpec &spec) const;
+ QGeoTile get(const QGeoTileSpec &spec);
+
+ void update(const QGeoTileSpec &spec, const QGeoTile &tile);
+
+ void evictFromDiskCache(TileDisk *td);
+ void evictFromMemoryCache(TileMemory *tm);
+ void evictFromTextureCache(TileTexture *tt);
+
+ void insert(const QGeoTileSpec &spec, const QByteArray &bytes, QGeoMappingManager::CacheAreas areas = QGeoMappingManager::AllCaches);
+ void handleError(const QGeoTileSpec &spec, const QString &errorString);
+
+private:
+ void loadTiles();
+
+ TileDisk* addToDiskCache(const QGeoTileSpec &spec, const QString &filename);
+ TileMemory* addToMemoryCache(const QGeoTileSpec &spec, const QPixmap &pixmap);
+ TileTexture* addToTextureCache(const QGeoTileSpec &spec, const QPixmap &pixmap);
+
+ static QString tileSpecToFilename(const QGeoTileSpec &spec, const QString &directory);
+ static QGeoTileSpec filenameToTileSpec(const QString &filename);
+
+ QString directory_;
+
+ QSet<QGeoTileSpec> keys_;
+ QCache<QGeoTileSpec, TileDisk > diskCache_;
+ QCache<QGeoTileSpec, TileMemory > memoryCache_;
+ QCache<QGeoTileSpec, TileTexture > textureCache_;
+
+ QList<QGeoTile> cleanupList_;
+};
+
+QT_END_NAMESPACE
+
+#endif // QGEOTILECACHE_P_H