mirror of
https://github.com/tumic0/GPXSee.git
synced 2024-10-06 23:03:22 +02:00
108 lines
2.3 KiB
C++
108 lines
2.3 KiB
C++
#include "parser.h"
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void Parser::handleExtensionData(QStringRef element, const QString &value)
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{
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if (element == "speed")
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_track->last().speed = value.toDouble();
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}
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void Parser::handleTrekPointData(QStringRef element, const QString &value)
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{
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if (element == "ele")
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_track->last().elevation = value.toLatin1().toDouble();
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if (element == "time")
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_track->last().timestamp = QDateTime::fromString(value.toLatin1(),
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Qt::ISODate);
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if (element == "geoidheight")
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_track->last().geoidheight = value.toLatin1().toDouble();
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}
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void Parser::handleTrekPointAttributes(const QXmlStreamAttributes &attr)
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{
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_track->last().coordinates.setY(attr.value("lat").toLatin1().toDouble());
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_track->last().coordinates.setX(attr.value("lon").toLatin1().toDouble());
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}
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void Parser::extensions()
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{
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while (_reader.readNextStartElement()) {
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if (_reader.name() == "speed")
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handleExtensionData(_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::trackPointData()
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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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|| _reader.name() == "geoidheight")
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handleTrekPointData(_reader.name(), _reader.readElementText());
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else if (_reader.name() == "extensions")
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extensions();
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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::trackPoints()
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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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_track->append(TrackPoint());
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handleTrekPointAttributes(attr);
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trackPointData();
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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::track()
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{
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while (_reader.readNextStartElement()) {
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if (_reader.name() == "trkseg") {
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trackPoints();
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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()
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{
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while (_reader.readNextStartElement()) {
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if (_reader.name() == "trk") {
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_data->append(QVector<TrackPoint>());
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_track = &_data->back();
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track();
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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()
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{
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if (_reader.readNextStartElement()) {
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if (_reader.name() == "gpx")
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gpx();
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else
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_reader.raiseError("Not a GPX file.");
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}
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return !_reader.error();
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}
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bool Parser::loadFile(QIODevice *device, QList<QVector<TrackPoint> > *data)
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{
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_reader.clear();
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_reader.setDevice(device);
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_data = data;
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return parse();
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}
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