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36 #include "qabstractgeotilecache_p.h"
37 
38 #include "qgeotilespec_p.h"
39 
40 #include "qgeomappingmanager_p.h"
41 
42 #include <QDir>
43 #include <QStandardPaths>
44 #include <QMetaType>
45 #include <QPixmap>
46 #include <QDebug>
47 
48 Q_DECLARE_METATYPE(QList<QGeoTileSpec>)
Q_DECLARE_METATYPE(QSet<QGeoTileSpec>)49 Q_DECLARE_METATYPE(QSet<QGeoTileSpec>)
50 
51 QT_BEGIN_NAMESPACE
52 
53 QGeoTileTexture::QGeoTileTexture()
54     : textureBound(false) {}
55 
~QGeoTileTexture()56 QGeoTileTexture::~QGeoTileTexture()
57 {
58 }
59 
QAbstractGeoTileCache(QObject * parent)60 QAbstractGeoTileCache::QAbstractGeoTileCache(QObject *parent)
61     : QObject(parent)
62 {
63     qRegisterMetaType<QGeoTileSpec>();
64     qRegisterMetaType<QList<QGeoTileSpec> >();
65     qRegisterMetaType<QSet<QGeoTileSpec> >();
66 }
67 
~QAbstractGeoTileCache()68 QAbstractGeoTileCache::~QAbstractGeoTileCache()
69 {
70 }
71 
printStats()72 void QAbstractGeoTileCache::printStats()
73 {
74 }
75 
handleError(const QGeoTileSpec &,const QString & error)76 void QAbstractGeoTileCache::handleError(const QGeoTileSpec &, const QString &error)
77 {
78     qWarning() << "tile request error " << error;
79 }
80 
setMaxDiskUsage(int diskUsage)81 void QAbstractGeoTileCache::setMaxDiskUsage(int diskUsage)
82 {
83     Q_UNUSED(diskUsage);
84 }
85 
maxDiskUsage() const86 int QAbstractGeoTileCache::maxDiskUsage() const
87 {
88     return 0;
89 }
90 
diskUsage() const91 int QAbstractGeoTileCache::diskUsage() const
92 {
93     return 0;
94 }
95 
setMaxMemoryUsage(int memoryUsage)96 void QAbstractGeoTileCache::setMaxMemoryUsage(int memoryUsage)
97 {
98     Q_UNUSED(memoryUsage);
99 }
100 
maxMemoryUsage() const101 int QAbstractGeoTileCache::maxMemoryUsage() const
102 {
103     return 0;
104 }
105 
memoryUsage() const106 int QAbstractGeoTileCache::memoryUsage() const
107 {
108     return 0;
109 }
110 
baseCacheDirectory()111 QString QAbstractGeoTileCache::baseCacheDirectory()
112 {
113     QString dir;
114 
115     // Try the shared cache first and use a specific directory. (e.g. ~/.cache/QtLocation)
116     // If this is not supported by the platform, use the application-specific cache
117     // location. (e.g. ~/.cache/<app_name>/QtLocation)
118     dir = QStandardPaths::writableLocation(QStandardPaths::GenericCacheLocation);
119 
120     if (!dir.isEmpty()) {
121         // The shared cache may not be writable when application isolation is enforced.
122         static bool writable = false;
123         static bool writableChecked = false;
124         if (!writableChecked) {
125             writableChecked = true;
126             QDir::root().mkpath(dir);
127             QFile writeTestFile(QDir(dir).filePath(QStringLiteral("qt_cache_check")));
128             writable = writeTestFile.open(QIODevice::WriteOnly);
129             if (writable)
130                 writeTestFile.remove();
131         }
132         if (!writable)
133             dir = QString();
134     }
135 
136     if (dir.isEmpty())
137         dir = QStandardPaths::writableLocation(QStandardPaths::CacheLocation);
138 
139     if (!dir.endsWith(QLatin1Char('/')))
140         dir += QLatin1Char('/');
141 
142     return dir;
143 }
144 
baseLocationCacheDirectory()145 QString QAbstractGeoTileCache::baseLocationCacheDirectory()
146 {
147     // This scheme allows to have the "tiles" prefix hardcoded here
148     // NOTE: changing the Qt version here requires changing it also in QGeoFileTileCache::init,
149     // in the code that remove old version tiles !
150     return baseCacheDirectory() + QLatin1String("QtLocation/5.8/tiles/");
151 }
152 
153 QT_END_NAMESPACE
154