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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtLocation module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://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.LGPL3 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-3.0.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 (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qgeofiletilecachemapbox.h"
#include <QtLocation/private/qgeotilespec_p.h>
#include <QDir>
QT_BEGIN_NAMESPACE
QGeoFileTileCacheMapbox::QGeoFileTileCacheMapbox(const QList<QGeoMapType> &mapTypes,
int scaleFactor, const QString &directory,
QObject *parent)
:QGeoFileTileCache(directory, parent), m_mapTypes(mapTypes)
{
m_scaleFactor = qBound(1, scaleFactor, 2);
for (qsizetype i = 0; i < mapTypes.size(); i++)
m_mapNameToId.insert(mapTypes[i].name(), i + 1);
}
QGeoFileTileCacheMapbox::~QGeoFileTileCacheMapbox()
{
}
QString QGeoFileTileCacheMapbox::tileSpecToFilename(const QGeoTileSpec &spec, const QString &format,
const QString &directory) const
{
QString filename = spec.plugin();
filename += QLatin1String("-");
filename += m_mapTypes[spec.mapId()-1].name();
filename += QLatin1String("-");
filename += QString::number(spec.zoom());
filename += QLatin1String("-");
filename += QString::number(spec.x());
filename += QLatin1String("-");
filename += QString::number(spec.y());
//Append version if real version number to ensure backwards compatibility and eviction of old tiles
if (spec.version() != -1) {
filename += QLatin1String("-");
filename += QString::number(spec.version());
}
filename += QLatin1String("-@");
filename += QString::number(m_scaleFactor);
filename += QLatin1Char('x');
filename += QLatin1String(".");
filename += format;
QDir dir = QDir(directory);
return dir.filePath(filename);
}
QGeoTileSpec QGeoFileTileCacheMapbox::filenameToTileSpec(const QString &filename) const
{
QStringList parts = filename.split('.');
if (parts.length() != 3) // 3 because the map name has always a dot in it.
return QGeoTileSpec();
const QString name = parts.at(0) + QChar('.') + parts.at(1);
const QStringList fields = name.split('-');
const qsizetype length = fields.length();
if (length != 6 && length != 7)
return QGeoTileSpec();
const qsizetype scaleIdx = fields.last().indexOf("@");
if (scaleIdx < 0 || fields.last().size() <= (scaleIdx + 2))
return QGeoTileSpec();
const int scaleFactor = fields.last()[scaleIdx + 1].digitValue();
if (scaleFactor != m_scaleFactor)
return QGeoTileSpec();
QList<int> numbers;
bool ok = false;
for (qsizetype i = 2; i < length - 1; ++i) { // skipping -@_X
ok = false;
int value = fields.at(i).toInt(&ok);
if (!ok)
return QGeoTileSpec();
numbers.append(value);
}
//File name without version, append default
if (numbers.length() < 4)
numbers.append(-1);
return QGeoTileSpec(fields.at(0),
m_mapNameToId[fields.at(1)],
numbers.at(0),
numbers.at(1),
numbers.at(2),
numbers.at(3));
}
QT_END_NAMESPACE
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