From 9405895285f90932bee9db439fe6a13234f65395 Mon Sep 17 00:00:00 2001 From: Dirk Hohndel Date: Mon, 23 Dec 2013 14:56:40 -0800 Subject: Improve GPS string handling This adds support for two more GPS coordinate formats and also fixes a couple of issues with the previous implementation. We used to only support full degrees and decimal minutes. We now also support fully decimal and degrees, minutes and decimal seconds. The previous implementation would color the input field red if either it couldn't parse the string, or if it was able to parse it but it was the same as the previous location. That's misleading. The previous implementation also changed all gps coordinates to the new coordinates in a multi-dive edit - instead of just changing the ones that are the same as the master dive. Fixes #387 Signed-off-by: Dirk Hohndel --- qthelper.cpp | 54 +++++++++++++++++++++++++++++++++++++++++++++--------- 1 file changed, 45 insertions(+), 9 deletions(-) (limited to 'qthelper.cpp') diff --git a/qthelper.cpp b/qthelper.cpp index ff9bf9492..36b3ef182 100644 --- a/qthelper.cpp +++ b/qthelper.cpp @@ -101,31 +101,67 @@ QString weight_string(int weight_in_grams) bool parseGpsText(const QString& gps_text, double *latitude, double *longitude) { + enum { SECONDS, MINUTES, DECIMAL } gpsStyle = DECIMAL; + int eastWest = 4; + QString regExp; /* an empty string is interpreted as 0.0,0.0 and therefore "no gps location" */ if (gps_text.trimmed() == "") { *latitude = 0.0; *longitude = 0.0; return true; } - QString regExp = QString("\\s*([NS%1%2])\\s*(\\d+)[" UTF8_DEGREE "\\s]+(\\d+)\\.(\\d+)[^EW%3%4]*([EW%6%7])\\s*(\\d+)[" UTF8_DEGREE "\\s]+(\\d+)\\.(\\d+)") - .arg(tr("N")).arg(tr("S")).arg(tr("E")).arg(tr("W")).arg(tr("E")).arg(tr("W")); + // trying to parse all formats in one regexp might be possible, but it seems insane + // so handle the three formats we understand separately + if (gps_text.count(QChar('"')) == 2) { + gpsStyle = SECONDS; + regExp = QString("\\s*([NS%1%2])\\s*(\\d+)[" UTF8_DEGREE "\\s]+(\\d+)[\'\\s]+(\\d+)\\.(\\d+)[^EW%3%4]*" + "([EW%6%7])\\s*(\\d+)[" UTF8_DEGREE "\\s]+(\\d+)[\'\\s]+(\\d+)\\.(\\d+)") + .arg(tr("N")).arg(tr("S")).arg(tr("E")).arg(tr("W")).arg(tr("E")).arg(tr("W")); + } else if (gps_text.count(QChar('\'')) == 2) { + gpsStyle = MINUTES; + regExp = QString("\\s*([NS%1%2])\\s*(\\d+)[" UTF8_DEGREE "\\s]+(\\d+)\\.(\\d+)[^EW%3%4]*" + "([EW%6%7])\\s*(\\d+)[" UTF8_DEGREE "\\s]+(\\d+)\\.(\\d+)") + .arg(tr("N")).arg(tr("S")).arg(tr("E")).arg(tr("W")).arg(tr("E")).arg(tr("W")); + } else { + regExp = QString("\\s*([-NS%1%2]?)\\s*(\\d+)\\.(\\d+)[^-EW%3%4\\d]*([-EW%5%6]?)\\s*(\\d+)\\.(\\d+)") + .arg(tr("N")).arg(tr("S")).arg(tr("E")).arg(tr("W")).arg(tr("E")).arg(tr("W")); + } QRegExp r(regExp); - if (r.indexIn(gps_text) != 8) { + if (r.indexIn(gps_text) != -1) { // qDebug() << "Hemisphere" << r.cap(1) << "deg" << r.cap(2) << "min" << r.cap(3) << "decimal" << r.cap(4); // qDebug() << "Hemisphere" << r.cap(5) << "deg" << r.cap(6) << "min" << r.cap(7) << "decimal" << r.cap(8); - *latitude = r.cap(2).toInt() + (r.cap(3) + QString(".") + r.cap(4)).toDouble() / 60.0; - *longitude = r.cap(6).toInt() + (r.cap(7) + QString(".") + r.cap(8)).toDouble() / 60.0; - if (r.cap(1) == "S" || r.cap(1) == tr("S")) + switch(gpsStyle) { + case SECONDS: + *latitude = r.cap(2).toInt() + r.cap(3).toInt() / 60.0 + + (r.cap(4) + QString(".") + r.cap(5)).toDouble() / 3600.0; + *longitude = r.cap(7).toInt() + r.cap(8).toInt() / 60.0 + + (r.cap(9) + QString(".") + r.cap(10)).toDouble() / 3600.0; + eastWest = 6; + break; + case MINUTES: + *latitude = r.cap(2).toInt() + (r.cap(3) + QString(".") + r.cap(4)).toDouble() / 60.0; + *longitude = r.cap(6).toInt() + (r.cap(7) + QString(".") + r.cap(8)).toDouble() / 60.0; + eastWest = 5; + break; + case DECIMAL: + default: + *latitude = (r.cap(2) + QString(".") + r.cap(3)).toDouble(); + *longitude = (r.cap(5) + QString(".") + r.cap(6)).toDouble(); + eastWest = 4; + break; + } + if (r.cap(1) == "S" || r.cap(1) == tr("S") || r.cap(1) == "-") *latitude *= -1.0; - if (r.cap(5) == "W" || r.cap(5) == tr("W")) + if (r.cap(eastWest) == "W" || r.cap(5) == tr("W") || r.cap(5) == "-") *longitude *= -1.0; // qDebug("%s -> %8.5f / %8.5f", gps_text.toLocal8Bit().data(), *latitude, *longitude); return true; } + qDebug() << "rejected"; return false; } -bool gpsHasChanged(struct dive *dive, struct dive *master, const QString& gps_text) +bool gpsHasChanged(struct dive *dive, struct dive *master, const QString& gps_text, bool *parsed) { double latitude, longitude; int latudeg, longudeg; @@ -136,7 +172,7 @@ bool gpsHasChanged(struct dive *dive, struct dive *master, const QString& gps_te master->longitude.udeg != dive->longitude.udeg)) return false; - if (!parseGpsText(gps_text, &latitude, &longitude)) + if (!(*parsed = parseGpsText(gps_text, &latitude, &longitude))) return false; latudeg = rint(1000000 * latitude); -- cgit v1.2.3-70-g09d2