| /**************************************************************************** |
| ** |
| ** Copyright (C) 2015 The Qt Company Ltd. |
| ** Contact: http://www.qt.io/licensing/ |
| ** |
| ** This file is part of the QtLocation module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL3$ |
| ** Commercial License Usage |
| ** Licensees holding valid commercial Qt licenses may use this file in |
| ** accordance with the commercial license agreement provided with the |
| ** Software or, alternatively, in accordance with the terms contained in |
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| ** information use the contact form at http://www.qt.io/contact-us. |
| ** |
| ** GNU Lesser General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU Lesser |
| ** General Public License version 3 as published by the Free Software |
| ** Foundation and appearing in the file LICENSE.LGPLv3 included in the |
| ** packaging of this file. Please review the following information to |
| ** ensure the GNU Lesser General Public License version 3 requirements |
| ** will be met: https://www.gnu.org/licenses/lgpl.html. |
| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 2.0 or later 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 2.0 requirements will be |
| ** met: http://www.gnu.org/licenses/gpl-2.0.html. |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| #include "qabstractgeotilecache_p.h" |
| |
| #include "qgeotilespec_p.h" |
| |
| #include "qgeomappingmanager_p.h" |
| |
| #include <QDir> |
| #include <QStandardPaths> |
| #include <QMetaType> |
| #include <QPixmap> |
| #include <QDebug> |
| |
| Q_DECLARE_METATYPE(QList<QGeoTileSpec>) |
| Q_DECLARE_METATYPE(QSet<QGeoTileSpec>) |
| |
| QT_BEGIN_NAMESPACE |
| |
| QGeoTileTexture::QGeoTileTexture() |
| : textureBound(false) {} |
| |
| QGeoTileTexture::~QGeoTileTexture() |
| { |
| } |
| |
| QAbstractGeoTileCache::QAbstractGeoTileCache(QObject *parent) |
| : QObject(parent) |
| { |
| qRegisterMetaType<QGeoTileSpec>(); |
| qRegisterMetaType<QList<QGeoTileSpec> >(); |
| qRegisterMetaType<QSet<QGeoTileSpec> >(); |
| } |
| |
| QAbstractGeoTileCache::~QAbstractGeoTileCache() |
| { |
| } |
| |
| void QAbstractGeoTileCache::printStats() |
| { |
| } |
| |
| void QAbstractGeoTileCache::handleError(const QGeoTileSpec &, const QString &error) |
| { |
| qWarning() << "tile request error " << error; |
| } |
| |
| void QAbstractGeoTileCache::setMaxDiskUsage(int diskUsage) |
| { |
| Q_UNUSED(diskUsage); |
| } |
| |
| int QAbstractGeoTileCache::maxDiskUsage() const |
| { |
| return 0; |
| } |
| |
| int QAbstractGeoTileCache::diskUsage() const |
| { |
| return 0; |
| } |
| |
| void QAbstractGeoTileCache::setMaxMemoryUsage(int memoryUsage) |
| { |
| Q_UNUSED(memoryUsage); |
| } |
| |
| int QAbstractGeoTileCache::maxMemoryUsage() const |
| { |
| return 0; |
| } |
| |
| int QAbstractGeoTileCache::memoryUsage() const |
| { |
| return 0; |
| } |
| |
| QString QAbstractGeoTileCache::baseCacheDirectory() |
| { |
| QString dir; |
| |
| // Try the shared cache first and use a specific directory. (e.g. ~/.cache/QtLocation) |
| // If this is not supported by the platform, use the application-specific cache |
| // location. (e.g. ~/.cache/<app_name>/QtLocation) |
| dir = QStandardPaths::writableLocation(QStandardPaths::GenericCacheLocation); |
| |
| if (!dir.isEmpty()) { |
| // The shared cache may not be writable when application isolation is enforced. |
| static bool writable = false; |
| static bool writableChecked = false; |
| if (!writableChecked) { |
| writableChecked = true; |
| QDir::root().mkpath(dir); |
| QFile writeTestFile(QDir(dir).filePath(QStringLiteral("qt_cache_check"))); |
| writable = writeTestFile.open(QIODevice::WriteOnly); |
| if (writable) |
| writeTestFile.remove(); |
| } |
| if (!writable) |
| dir = QString(); |
| } |
| |
| if (dir.isEmpty()) |
| dir = QStandardPaths::writableLocation(QStandardPaths::CacheLocation); |
| |
| if (!dir.endsWith(QLatin1Char('/'))) |
| dir += QLatin1Char('/'); |
| |
| return dir; |
| } |
| |
| QString QAbstractGeoTileCache::baseLocationCacheDirectory() |
| { |
| // This scheme allows to have the "tiles" prefix hardcoded here |
| // NOTE: changing the Qt version here requires changing it also in QGeoFileTileCache::init, |
| // in the code that remove old version tiles ! |
| return baseCacheDirectory() + QLatin1String("QtLocation/5.8/tiles/"); |
| } |
| |
| QT_END_NAMESPACE |