2016-10-24 20:00:29 +02:00
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#include "kmlparser.h"
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2016-10-27 22:33:35 +02:00
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qreal KMLParser::number()
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{
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bool res;
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qreal ret = _reader.readElementText().toDouble(&res);
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if (!res)
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_reader.raiseError(QString("Invalid %1.").arg(
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_reader.name().toString()));
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return ret;
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}
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QDateTime KMLParser::time()
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{
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QDateTime d = QDateTime::fromString(_reader.readElementText(),
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Qt::ISODate);
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if (!d.isValid())
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_reader.raiseError(QString("Invalid %1.").arg(
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_reader.name().toString()));
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return d;
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}
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bool KMLParser::pointCoordinates(Waypoint &waypoint)
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2016-10-24 20:00:29 +02:00
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{
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QString data = _reader.readElementText();
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const QChar *sp, *ep, *cp, *vp;
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int c = 0;
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qreal val[3];
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bool res;
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sp = data.constData();
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ep = sp + data.size();
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2016-10-25 22:50:11 +02:00
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for (cp = sp; cp < ep; cp++)
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if (!cp->isSpace())
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break;
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for (vp = cp; cp <= ep; cp++) {
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if (*cp == ',') {
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2016-10-24 20:00:29 +02:00
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if (c > 2)
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return false;
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#if QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
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val[c] = QString(vp, cp - vp).toDouble(&res);
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#else // QT_VERSION < 5
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val[c] = QStringRef(&data, vp - sp, cp - vp).toDouble(&res);
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#endif // QT_VERSION < 5
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if (!res)
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return false;
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c++;
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vp = cp + 1;
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2016-10-25 22:50:11 +02:00
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} else if (cp->isSpace() || cp->isNull()) {
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if (c < 1)
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return false;
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#if QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
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val[c] = QString(vp, cp - vp).toDouble(&res);
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#else // QT_VERSION < 5
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val[c] = QStringRef(&data, vp - sp, cp - vp).toDouble(&res);
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#endif // QT_VERSION < 5
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if (!res)
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return false;
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2016-10-27 22:33:35 +02:00
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waypoint.setCoordinates(Coordinates(val[0], val[1]));
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2016-10-25 22:50:11 +02:00
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if (c == 2)
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2016-10-27 22:33:35 +02:00
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waypoint.setElevation(val[2]);
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2016-10-25 22:50:11 +02:00
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while (cp->isSpace())
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cp++;
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c = 3;
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2016-10-24 20:00:29 +02:00
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}
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}
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return true;
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}
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2016-10-27 22:33:35 +02:00
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bool KMLParser::lineCoordinates(QVector<Waypoint> &route)
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2016-10-24 20:00:29 +02:00
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{
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QString data = _reader.readElementText();
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const QChar *sp, *ep, *cp, *vp;
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int c = 0;
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qreal val[3];
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bool res;
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sp = data.constData();
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ep = sp + data.size();
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2016-10-25 22:50:11 +02:00
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for (cp = sp; cp < ep; cp++)
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if (!cp->isSpace())
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break;
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for (vp = cp; cp <= ep; cp++) {
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if (*cp == ',') {
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2016-10-24 20:00:29 +02:00
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if (c > 2)
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return false;
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#if QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
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val[c] = QString(vp, cp - vp).toDouble(&res);
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#else // QT_VERSION < 5
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val[c] = QStringRef(&data, vp - sp, cp - vp).toDouble(&res);
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#endif // QT_VERSION < 5
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if (!res)
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return false;
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c++;
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vp = cp + 1;
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2016-10-25 22:50:11 +02:00
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} else if (cp->isSpace() || cp->isNull()) {
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if (c < 1 || c > 2)
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2016-10-24 20:00:29 +02:00
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return false;
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2016-10-25 22:50:11 +02:00
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#if QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
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val[c] = QString(vp, cp - vp).toDouble(&res);
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#else // QT_VERSION < 5
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val[c] = QStringRef(&data, vp - sp, cp - vp).toDouble(&res);
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#endif // QT_VERSION < 5
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if (!res)
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return false;
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2016-10-27 22:33:35 +02:00
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route.append(Waypoint(Coordinates(val[0], val[1])));
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2016-10-25 22:50:11 +02:00
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if (c == 2)
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2016-10-27 22:33:35 +02:00
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route.last().setElevation(val[2]);
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2016-10-25 22:50:11 +02:00
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2016-10-24 20:00:29 +02:00
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while (cp->isSpace())
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cp++;
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c = 0;
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2016-10-25 22:50:11 +02:00
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vp = cp;
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2016-10-24 20:00:29 +02:00
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}
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}
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2016-10-25 22:50:11 +02:00
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return true;
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}
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2016-10-27 22:33:35 +02:00
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void KMLParser::timeStamp(Waypoint &waypoint)
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2016-10-25 22:50:11 +02:00
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{
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while (_reader.readNextStartElement()) {
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2016-10-27 22:33:35 +02:00
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if (_reader.name() == "when")
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waypoint.setTimestamp(time());
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else
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2016-10-25 22:50:11 +02:00
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_reader.skipCurrentElement();
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}
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2016-10-24 20:00:29 +02:00
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}
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2016-10-27 22:33:35 +02:00
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void KMLParser::lineString(QVector<Waypoint> &route)
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2016-10-24 20:00:29 +02:00
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{
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while (_reader.readNextStartElement()) {
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if (_reader.name() == "coordinates") {
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2016-10-27 22:33:35 +02:00
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if (!lineCoordinates(route))
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2016-10-24 20:00:29 +02:00
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_reader.raiseError("Invalid coordinates.");
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} else
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_reader.skipCurrentElement();
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}
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}
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2016-10-27 22:33:35 +02:00
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void KMLParser::point(Waypoint &waypoint)
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2016-10-24 20:00:29 +02:00
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{
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while (_reader.readNextStartElement()) {
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if (_reader.name() == "coordinates") {
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2016-10-27 22:33:35 +02:00
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if (!pointCoordinates(waypoint))
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2016-10-24 20:00:29 +02:00
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_reader.raiseError("Invalid coordinates.");
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} else
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_reader.skipCurrentElement();
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}
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}
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void KMLParser::placemark()
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{
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2016-10-27 22:33:35 +02:00
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Waypoint waypoint;
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2016-10-25 22:50:11 +02:00
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2016-10-24 20:00:29 +02:00
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while (_reader.readNextStartElement()) {
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2016-10-25 22:50:11 +02:00
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if (_reader.name() == "name")
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2016-10-27 22:33:35 +02:00
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waypoint.setName(_reader.readElementText());
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2016-10-25 22:50:11 +02:00
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else if (_reader.name() == "description")
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2016-10-27 22:33:35 +02:00
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waypoint.setDescription(_reader.readElementText());
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2016-10-25 22:50:11 +02:00
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else if (_reader.name() == "TimeStamp")
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2016-10-27 22:33:35 +02:00
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timeStamp(waypoint);
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else if (_reader.name() == "Point") {
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_waypoints.append(waypoint);
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point(_waypoints.last());
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} else if (_reader.name() == "LineString") {
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_routes.append(QVector<Waypoint>());
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lineString(_routes.back());
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} else
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2016-10-25 22:50:11 +02:00
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_reader.skipCurrentElement();
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}
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}
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void KMLParser::folder()
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{
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while (_reader.readNextStartElement()) {
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if (_reader.name() == "Placemark")
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placemark();
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2016-10-26 08:23:18 +02:00
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else if (_reader.name() == "Folder")
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folder();
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2016-10-24 20:00:29 +02:00
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else
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_reader.skipCurrentElement();
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}
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}
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void KMLParser::document()
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{
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while (_reader.readNextStartElement()) {
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if (_reader.name() == "Placemark")
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placemark();
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2016-10-25 22:50:11 +02:00
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else if (_reader.name() == "Folder")
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folder();
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2016-10-24 20:00:29 +02:00
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else
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_reader.skipCurrentElement();
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}
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}
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void KMLParser::kml()
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{
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while (_reader.readNextStartElement()) {
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if (_reader.name() == "Document")
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document();
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2016-10-26 09:01:35 +02:00
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else if (_reader.name() == "Placemark")
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placemark();
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2016-10-24 20:00:29 +02:00
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else
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_reader.skipCurrentElement();
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}
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}
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bool KMLParser::parse()
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{
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if (_reader.readNextStartElement()) {
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if (_reader.name() == "kml")
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kml();
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else
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_reader.raiseError("Not a KML file.");
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}
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return !_reader.error();
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}
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bool KMLParser::loadFile(QIODevice *device)
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{
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_reader.clear();
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_reader.setDevice(device);
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return parse();
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}
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