1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
|
/****************************************************************************
**
** Copyright (C) 2016 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
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** 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 "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 (int 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();
QString name = parts.at(0) + parts.at(1);
QStringList fields = name.split('-');
int length = fields.length();
if (length != 6 && length != 7) {
return QGeoTileSpec();
} else {
int scaleIdx = fields.last().indexOf("@");
if (scaleIdx < 0 || fields.last().size() <= (scaleIdx + 2))
return QGeoTileSpec();
int scaleFactor = fields.last()[scaleIdx + 1].digitValue();
if (scaleFactor != m_scaleFactor)
return QGeoTileSpec();
}
QList<int> numbers;
bool ok = false;
for (int 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
|
