1 /****************************************************************************
2 **
3 ** Copyright (C) 2016 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.
7 **
8 ** $QT_BEGIN_LICENSE:LGPL3$
9 ** Commercial License Usage
10 ** Licensees holding valid commercial Qt licenses may use this file in
11 ** accordance with the commercial license agreement provided with the
12 ** Software or, alternatively, in accordance with the terms contained in
13 ** a written agreement between you and The Qt Company. For licensing terms
14 ** and conditions see http://www.qt.io/terms-conditions. For further
15 ** information use the contact form at http://www.qt.io/contact-us.
16 **
17 ** GNU Lesser General Public License Usage
18 ** Alternatively, this file may be used under the terms of the GNU Lesser
19 ** General Public License version 3 as published by the Free Software
20 ** Foundation and appearing in the file LICENSE.LGPLv3 included in the
21 ** packaging of this file. Please review the following information to
22 ** ensure the GNU Lesser General Public License version 3 requirements
23 ** will be met: https://www.gnu.org/licenses/lgpl.html.
24 **
25 ** GNU General Public License Usage
26 ** Alternatively, this file may be used under the terms of the GNU
27 ** General Public License version 2.0 or later as published by the Free
28 ** Software Foundation and appearing in the file LICENSE.GPL included in
29 ** the packaging of this file. Please review the following information to
30 ** ensure the GNU General Public License version 2.0 requirements will be
31 ** met: http://www.gnu.org/licenses/gpl-2.0.html.
32 **
33 ** $QT_END_LICENSE$
34 **
35 ****************************************************************************/
36
37 #include "qgeofiletilecachenokia.h"
38 #include <QtLocation/private/qgeotilespec_p.h>
39 #include <QDir>
40
41 QT_BEGIN_NAMESPACE
42
QGeoFileTileCacheNokia(int ppi,const QString & directory,QObject * parent)43 QGeoFileTileCacheNokia::QGeoFileTileCacheNokia(int ppi, const QString &directory, QObject *parent)
44 :QGeoFileTileCache(directory, parent)
45 {
46 m_ppi = QString::number(ppi) + QLatin1String("p");
47 }
48
~QGeoFileTileCacheNokia()49 QGeoFileTileCacheNokia::~QGeoFileTileCacheNokia()
50 {
51
52 }
53
tileSpecToFilename(const QGeoTileSpec & spec,const QString & format,const QString & directory) const54 QString QGeoFileTileCacheNokia::tileSpecToFilename(const QGeoTileSpec &spec, const QString &format, const QString &directory) const
55 {
56 QString filename = spec.plugin();
57 filename += QLatin1String("-");
58 filename += QString::number(spec.mapId());
59 filename += QLatin1String("-");
60 filename += QString::number(spec.zoom());
61 filename += QLatin1String("-");
62 filename += QString::number(spec.x());
63 filename += QLatin1String("-");
64 filename += QString::number(spec.y());
65
66 //Append version if real version number to ensure backwards compatibility and eviction of old tiles
67 if (spec.version() != -1) {
68 filename += QLatin1String("-");
69 filename += QString::number(spec.version());
70 }
71
72 filename += QLatin1String("-");
73 filename += m_ppi;
74
75 filename += QLatin1String(".");
76 filename += format;
77
78 QDir dir = QDir(directory);
79
80 return dir.filePath(filename);
81 }
82
filenameToTileSpec(const QString & filename) const83 QGeoTileSpec QGeoFileTileCacheNokia::filenameToTileSpec(const QString &filename) const
84 {
85 QGeoTileSpec emptySpec;
86
87 QStringList parts = filename.split('.');
88
89 if (parts.length() != 2)
90 return emptySpec;
91
92 QString name = parts.at(0);
93 QStringList fields = name.split('-');
94
95 int length = fields.length();
96 if (length != 6 && length != 7)
97 return emptySpec;
98 else if (fields.last() != m_ppi)
99 return QGeoTileSpec();
100
101 QList<int> numbers;
102
103 bool ok = false;
104 for (int i = 1; i < length-1; ++i) { // skipping -<ppi>
105 ok = false;
106 int value = fields.at(i).toInt(&ok);
107 if (!ok)
108 return emptySpec;
109 numbers.append(value);
110 }
111
112 //File name without version, append default
113 if (numbers.length() < 5)
114 numbers.append(-1);
115
116 return QGeoTileSpec(fields.at(0),
117 numbers.at(0),
118 numbers.at(1),
119 numbers.at(2),
120 numbers.at(3),
121 numbers.at(4));
122 }
123
124 QT_END_NAMESPACE
125