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36 | #ifndef QGEOFILETILECACHE_P_H |
37 | #define QGEOFILETILECACHE_P_H |
38 | |
39 | // |
40 | // W A R N I N G |
41 | // ------------- |
42 | // |
43 | // This file is not part of the Qt API. It exists purely as an |
44 | // implementation detail. This header file may change from version to |
45 | // version without notice, or even be removed. |
46 | // |
47 | // We mean it. |
48 | // |
49 | |
50 | #include <QtLocation/private/qlocationglobal_p.h> |
51 | |
52 | #include <QObject> |
53 | #include <QCache> |
54 | #include "qcache3q_p.h" |
55 | #include <QSet> |
56 | #include <QMutex> |
57 | #include <QTimer> |
58 | |
59 | #include "qgeotilespec_p.h" |
60 | #include "qgeotiledmappingmanagerengine_p.h" |
61 | #include "qabstractgeotilecache_p.h" |
62 | |
63 | #include <QImage> |
64 | |
65 | QT_BEGIN_NAMESPACE |
66 | |
67 | class QGeoMappingManager; |
68 | |
69 | class QGeoTile; |
70 | class QGeoCachedTileMemory; |
71 | class QGeoFileTileCache; |
72 | |
73 | class QPixmap; |
74 | class QThread; |
75 | |
76 | /* This would be internal to qgeofiletilecache.cpp except that the eviction |
77 | * policy can't be defined without it being concrete here */ |
78 | class QGeoCachedTileDisk |
79 | { |
80 | public: |
81 | ~QGeoCachedTileDisk(); |
82 | |
83 | QGeoTileSpec spec; |
84 | QString filename; |
85 | QString format; |
86 | QGeoFileTileCache *cache; |
87 | }; |
88 | |
89 | /* Custom eviction policy for the disk cache, to avoid deleting all the files |
90 | * when the application closes */ |
91 | class Q_LOCATION_PRIVATE_EXPORT QCache3QTileEvictionPolicy : public QCache3QDefaultEvictionPolicy<QGeoTileSpec,QGeoCachedTileDisk> |
92 | { |
93 | protected: |
94 | void aboutToBeRemoved(const QGeoTileSpec &key, QSharedPointer<QGeoCachedTileDisk> obj); |
95 | void aboutToBeEvicted(const QGeoTileSpec &key, QSharedPointer<QGeoCachedTileDisk> obj); |
96 | }; |
97 | |
98 | class Q_LOCATION_PRIVATE_EXPORT QGeoFileTileCache : public QAbstractGeoTileCache |
99 | { |
100 | Q_OBJECT |
101 | public: |
102 | QGeoFileTileCache(const QString &directory = QString(), QObject *parent = 0); |
103 | ~QGeoFileTileCache(); |
104 | |
105 | void setMaxDiskUsage(int diskUsage) override; |
106 | int maxDiskUsage() const override; |
107 | int diskUsage() const override; |
108 | |
109 | void setMaxMemoryUsage(int memoryUsage) override; |
110 | int maxMemoryUsage() const override; |
111 | int memoryUsage() const override; |
112 | |
113 | void setMinTextureUsage(int textureUsage) override; |
114 | void (int textureUsage) override; |
115 | int maxTextureUsage() const override; |
116 | int minTextureUsage() const override; |
117 | int textureUsage() const override; |
118 | void clearAll() override; |
119 | void clearMapId(const int mapId); |
120 | void setCostStrategyDisk(CostStrategy costStrategy) override; |
121 | CostStrategy costStrategyDisk() const override; |
122 | void setCostStrategyMemory(CostStrategy costStrategy) override; |
123 | CostStrategy costStrategyMemory() const override; |
124 | void setCostStrategyTexture(CostStrategy costStrategy) override; |
125 | CostStrategy costStrategyTexture() const override; |
126 | |
127 | |
128 | QSharedPointer<QGeoTileTexture> get(const QGeoTileSpec &spec) override; |
129 | |
130 | // can be called without a specific tileCache pointer |
131 | static void evictFromDiskCache(QGeoCachedTileDisk *td); |
132 | static void evictFromMemoryCache(QGeoCachedTileMemory *tm); |
133 | |
134 | void insert(const QGeoTileSpec &spec, |
135 | const QByteArray &bytes, |
136 | const QString &format, |
137 | QAbstractGeoTileCache::CacheAreas areas = QAbstractGeoTileCache::AllCaches) override; |
138 | |
139 | static QString tileSpecToFilenameDefault(const QGeoTileSpec &spec, const QString &format, const QString &directory); |
140 | static QGeoTileSpec filenameToTileSpecDefault(const QString &filename); |
141 | |
142 | protected: |
143 | void init() override; |
144 | void printStats() override; |
145 | void loadTiles(); |
146 | |
147 | QString directory() const; |
148 | |
149 | QSharedPointer<QGeoCachedTileDisk> addToDiskCache(const QGeoTileSpec &spec, const QString &filename); |
150 | bool addToDiskCache(const QGeoTileSpec &spec, const QString &filename, const QByteArray &bytes); |
151 | void addToMemoryCache(const QGeoTileSpec &spec, const QByteArray &bytes, const QString &format); |
152 | QSharedPointer<QGeoTileTexture> addToTextureCache(const QGeoTileSpec &spec, const QImage &image); |
153 | QSharedPointer<QGeoTileTexture> getFromMemory(const QGeoTileSpec &spec); |
154 | QSharedPointer<QGeoTileTexture> getFromDisk(const QGeoTileSpec &spec); |
155 | |
156 | virtual bool isTileBogus(const QByteArray &bytes) const; |
157 | virtual QString tileSpecToFilename(const QGeoTileSpec &spec, const QString &format, const QString &directory) const; |
158 | virtual QGeoTileSpec filenameToTileSpec(const QString &filename) const; |
159 | |
160 | QCache3Q<QGeoTileSpec, QGeoCachedTileDisk, QCache3QTileEvictionPolicy > diskCache_; |
161 | QCache3Q<QGeoTileSpec, QGeoCachedTileMemory > memoryCache_; |
162 | QCache3Q<QGeoTileSpec, QGeoTileTexture > textureCache_; |
163 | |
164 | QString directory_; |
165 | |
166 | int minTextureUsage_; |
167 | int ; |
168 | CostStrategy costStrategyDisk_; |
169 | CostStrategy costStrategyMemory_; |
170 | CostStrategy costStrategyTexture_; |
171 | bool isDiskCostSet_; |
172 | bool isMemoryCostSet_; |
173 | bool isTextureCostSet_; |
174 | }; |
175 | |
176 | QT_END_NAMESPACE |
177 | |
178 | #endif // QGEOFILETILECACHE_P_H |
179 | |