mirror of
https://github.com/tumic0/GPXSee.git
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94 lines
2.0 KiB
C++
94 lines
2.0 KiB
C++
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#include "parser.h"
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void Parser::handleTrekPointData(QVector<TrackPoint> &data,
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QStringRef element, const QString &value)
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{
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if (element == "ele")
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data.last().elevation = value.toLatin1().toDouble();
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if (element == "time")
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data.last().timestamp = QDateTime::fromString(value.toLatin1(),
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Qt::ISODate);
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}
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void Parser::handleTrekPointAttributes(QVector<TrackPoint> &data,
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const QXmlStreamAttributes &attr)
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{
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data.last().coordinates.setY(attr.value("lat").toLatin1().toDouble());
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data.last().coordinates.setX(attr.value("lon").toLatin1().toDouble());
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}
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void Parser::trekPointData(QVector<TrackPoint> &data)
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{
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while (_reader.readNextStartElement()) {
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if (_reader.name() == "ele" || _reader.name() == "time")
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handleTrekPointData(data, _reader.name(), _reader.readElementText());
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else
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_reader.skipCurrentElement();
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}
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}
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void Parser::trekPoints(QVector<TrackPoint> &data)
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{
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QXmlStreamAttributes attr;
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while (_reader.readNextStartElement()) {
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if (_reader.name() == "trkpt") {
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attr = _reader.attributes();
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data.append(TrackPoint());
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handleTrekPointAttributes(data, attr);
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trekPointData(data);
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} else
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_reader.skipCurrentElement();
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}
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}
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void Parser::trek(QVector<TrackPoint> &data)
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{
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while (_reader.readNextStartElement()) {
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if (_reader.name() == "trkseg") {
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trekPoints(data);
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} else
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_reader.skipCurrentElement();
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}
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}
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void Parser::gpx(QVector<TrackPoint> &data)
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{
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while (_reader.readNextStartElement()) {
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if (_reader.name() == "trk")
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trek(data);
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else
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_reader.skipCurrentElement();
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}
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}
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bool Parser::parse(QVector<TrackPoint> &data)
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{
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if (_reader.readNextStartElement()) {
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if (_reader.name() == "gpx")
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gpx(data);
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else
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_reader.raiseError(QObject::tr("Not a GPX file."));
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}
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return !_reader.error();
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}
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QString Parser::errorString() const
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{
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return QObject::tr("%1\nLine %2")
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.arg(_reader.errorString())
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.arg(_reader.lineNumber());
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}
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bool Parser::loadFile(QIODevice *device, QVector<TrackPoint> &data)
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{
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_reader.clear();
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_reader.setDevice(device);
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return parse(data);
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}
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