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2 | ** |
3 | ** Copyright (C) 2015 The Qt Company Ltd. |
4 | ** Contact: http://www.qt.io/licensing/ |
5 | ** |
6 | ** This file is part of the QtLocation module of the Qt Toolkit. |
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8 | ** $QT_BEGIN_LICENSE:LGPL3$ |
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24 | ** |
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35 | ****************************************************************************/ |
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>) |
49 | Q_DECLARE_METATYPE(QSet<QGeoTileSpec>) |
50 | |
51 | QT_BEGIN_NAMESPACE |
52 | |
53 | QGeoTileTexture::QGeoTileTexture() |
54 | : textureBound(false) {} |
55 | |
56 | QGeoTileTexture::~QGeoTileTexture() |
57 | { |
58 | } |
59 | |
60 | QAbstractGeoTileCache::QAbstractGeoTileCache(QObject *parent) |
61 | : QObject(parent) |
62 | { |
63 | qRegisterMetaType<QGeoTileSpec>(); |
64 | qRegisterMetaType<QList<QGeoTileSpec> >(); |
65 | qRegisterMetaType<QSet<QGeoTileSpec> >(); |
66 | } |
67 | |
68 | QAbstractGeoTileCache::~QAbstractGeoTileCache() |
69 | { |
70 | } |
71 | |
72 | void QAbstractGeoTileCache::printStats() |
73 | { |
74 | } |
75 | |
76 | void QAbstractGeoTileCache::handleError(const QGeoTileSpec &, const QString &error) |
77 | { |
78 | qWarning() << "tile request error "<< error; |
79 | } |
80 | |
81 | void QAbstractGeoTileCache::setMaxDiskUsage(int diskUsage) |
82 | { |
83 | Q_UNUSED(diskUsage); |
84 | } |
85 | |
86 | int QAbstractGeoTileCache::maxDiskUsage() const |
87 | { |
88 | return 0; |
89 | } |
90 | |
91 | int QAbstractGeoTileCache::diskUsage() const |
92 | { |
93 | return 0; |
94 | } |
95 | |
96 | void QAbstractGeoTileCache::setMaxMemoryUsage(int memoryUsage) |
97 | { |
98 | Q_UNUSED(memoryUsage); |
99 | } |
100 | |
101 | int QAbstractGeoTileCache::maxMemoryUsage() const |
102 | { |
103 | return 0; |
104 | } |
105 | |
106 | int QAbstractGeoTileCache::memoryUsage() const |
107 | { |
108 | return 0; |
109 | } |
110 | |
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(type: 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(dirPath: dir); |
127 | QFile writeTestFile(QDir(dir).filePath(QStringLiteral("qt_cache_check"))); |
128 | writable = writeTestFile.open(flags: 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(type: QStandardPaths::CacheLocation); |
138 | |
139 | if (!dir.endsWith(c: QLatin1Char('/'))) |
140 | dir += QLatin1Char('/'); |
141 | |
142 | return dir; |
143 | } |
144 | |
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 |