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36
37#include "qgeofiletilecachemapbox.h"
38#include <QtLocation/private/qgeotilespec_p.h>
39#include <QDir>
40
41QT_BEGIN_NAMESPACE
42
43QGeoFileTileCacheMapbox::QGeoFileTileCacheMapbox(const QList<QGeoMapType> &mapTypes, int scaleFactor, const QString &directory, QObject *parent)
44 :QGeoFileTileCache(directory, parent), m_mapTypes(mapTypes)
45{
46 m_scaleFactor = qBound(min: 1, val: scaleFactor, max: 2);
47 for (int i=0; i < mapTypes.size(); i++)
48 m_mapNameToId.insert(akey: mapTypes[i].name(), avalue: i+1);
49}
50
51QGeoFileTileCacheMapbox::~QGeoFileTileCacheMapbox()
52{
53
54}
55
56QString QGeoFileTileCacheMapbox::tileSpecToFilename(const QGeoTileSpec &spec, const QString &format, const QString &directory) const
57{
58 QString filename = spec.plugin();
59 filename += QLatin1String("-");
60 filename += m_mapTypes[spec.mapId()-1].name();
61 filename += QLatin1String("-");
62 filename += QString::number(spec.zoom());
63 filename += QLatin1String("-");
64 filename += QString::number(spec.x());
65 filename += QLatin1String("-");
66 filename += QString::number(spec.y());
67
68 //Append version if real version number to ensure backwards compatibility and eviction of old tiles
69 if (spec.version() != -1) {
70 filename += QLatin1String("-");
71 filename += QString::number(spec.version());
72 }
73
74 filename += QLatin1String("-@");
75 filename += QString::number(m_scaleFactor);
76 filename += QLatin1Char('x');
77
78 filename += QLatin1String(".");
79 filename += format;
80
81 QDir dir = QDir(directory);
82
83 return dir.filePath(fileName: filename);
84}
85
86QGeoTileSpec QGeoFileTileCacheMapbox::filenameToTileSpec(const QString &filename) const
87{
88 QStringList parts = filename.split(sep: '.');
89
90 if (parts.length() != 3) // 3 because the map name has always a dot in it.
91 return QGeoTileSpec();
92
93 QString name = parts.at(i: 0) + QChar('.') + parts.at(i: 1);
94 QStringList fields = name.split(sep: '-');
95
96 int length = fields.length();
97 if (length != 6 && length != 7) {
98 return QGeoTileSpec();
99 } else {
100 int scaleIdx = fields.last().indexOf(s: "@");
101 if (scaleIdx < 0 || fields.last().size() <= (scaleIdx + 2))
102 return QGeoTileSpec();
103 int scaleFactor = fields.last()[scaleIdx + 1].digitValue();
104 if (scaleFactor != m_scaleFactor)
105 return QGeoTileSpec();
106 }
107
108 QList<int> numbers;
109
110 bool ok = false;
111 for (int i = 2; i < length-1; ++i) { // skipping -@_X
112 ok = false;
113 int value = fields.at(i).toInt(ok: &ok);
114 if (!ok)
115 return QGeoTileSpec();
116 numbers.append(t: value);
117 }
118
119 //File name without version, append default
120 if (numbers.length() < 4)
121 numbers.append(t: -1);
122
123 return QGeoTileSpec(fields.at(i: 0),
124 m_mapNameToId[fields.at(i: 1)],
125 numbers.at(i: 0),
126 numbers.at(i: 1),
127 numbers.at(i: 2),
128 numbers.at(i: 3));
129}
130
131QT_END_NAMESPACE
132

source code of qtlocation/src/plugins/geoservices/mapbox/qgeofiletilecachemapbox.cpp