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36
37#include "qgeofiletilecachenokia.h"
38#include <QtLocation/private/qgeotilespec_p.h>
39#include <QDir>
40
41QT_BEGIN_NAMESPACE
42
43QGeoFileTileCacheNokia::QGeoFileTileCacheNokia(int ppi, const QString &directory, QObject *parent)
44 :QGeoFileTileCache(directory, parent)
45{
46 m_ppi = QString::number(ppi) + QLatin1String("p");
47}
48
49QGeoFileTileCacheNokia::~QGeoFileTileCacheNokia()
50{
51
52}
53
54QString 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: filename);
81}
82
83QGeoTileSpec QGeoFileTileCacheNokia::filenameToTileSpec(const QString &filename) const
84{
85 QGeoTileSpec emptySpec;
86
87 QStringList parts = filename.split(sep: '.');
88
89 if (parts.length() != 2)
90 return emptySpec;
91
92 QString name = parts.at(i: 0);
93 QStringList fields = name.split(sep: '-');
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: &ok);
107 if (!ok)
108 return emptySpec;
109 numbers.append(t: value);
110 }
111
112 //File name without version, append default
113 if (numbers.length() < 5)
114 numbers.append(t: -1);
115
116 return QGeoTileSpec(fields.at(i: 0),
117 numbers.at(i: 0),
118 numbers.at(i: 1),
119 numbers.at(i: 2),
120 numbers.at(i: 3),
121 numbers.at(i: 4));
122}
123
124QT_END_NAMESPACE
125

source code of qtlocation/src/plugins/geoservices/nokia/qgeofiletilecachenokia.cpp