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-rw-r--r--desktop-widgets/importgps.cpp151
1 files changed, 6 insertions, 145 deletions
diff --git a/desktop-widgets/importgps.cpp b/desktop-widgets/importgps.cpp
index 5e4845951..6e36c548a 100644
--- a/desktop-widgets/importgps.cpp
+++ b/desktop-widgets/importgps.cpp
@@ -39,145 +39,6 @@ void ImportGPS::buttonClicked(QAbstractButton *button)
}
}
-// Read text from the present position in the file until
-// the first 'delim' character is encountered.
-int ImportGPS::getSubstring(QFile *file, QString *bufptr, char delim)
-{
- char c;
- bufptr->clear();
- do {
- if (file->read(&c, 1) <= 0) // EOF
- return 1;
- if (c == delim) break;
- bufptr->append(QChar(c));
- } while (c != delim);
- return 0;
-}
-
-// Find the next occurence of a specified target GPX element in the file,
-// characerised by a "<xxx " or "<xxx>" character sequence.
-// 'target' specifies the name of the element searched for.
-// termc is the ending character of the element name search = '>' or ' '.
-int ImportGPS::findXmlElement(QFile *fileptr, QString target, QString *bufptr, char termc)
-{
- bool match = false;
- char c;
- char skipdelim = (termc == ' ') ? '>' : ' ';
- do { // Skip input until first start new of element (<) is encountered:
- if (getSubstring(fileptr, bufptr, '<'))
- return 1; // EOF
- bufptr->clear();
- do { // Read name of following element and store it in buf
- if (fileptr->read(&c, 1) <= 0) // EOF encountered
- return 1;
- if ((c == '>') || (c == ' ')) // found a valid delimiter
- break;
- bufptr->append(QChar(c));
- } while ((c != '>') && (c != ' '));
- if (*bufptr == "/trk") // End of GPS track found: return EOF
- return 1;
- if (c == skipdelim)
- continue; // if inappropriate delimiter was found, redo from start
- if (*bufptr == target) // Compare xml element name from gpx file with the
- match = true; // the target element searched for.
- } while (match == false);
- return 0;
-}
-
-// Find the coordinates at the time specified in coords.start_dive
-// by searching the gpx file "fileName". Here is a typical trkpt element in GPX:
-// <trkpt lat="-26.84" lon="32.88"><ele>-53.7</ele><time>2017-08-06T04:56:42Z</time></trkpt>
-int ImportGPS::getCoordsFromFile()
-{
- struct tm tm1;
- time_t when = 0;
- double lon, lat;
- int line = 0;
- int64_t time_offset = coords.settingsDiff_offset + coords.timeZone_offset;
- time_t divetime;
- bool first_line = true;
- bool found = false;
- divetime = coords.start_dive;
- QString buf;
- QFile f1;
- f1.setFileName(fileName);
- if (!f1.open(QIODevice::ReadOnly | QIODevice::Text)) {
- QByteArray local8bitBAString1 = fileName.toLocal8Bit();
- char *fname = local8bitBAString1.data(); // convert QString to a C string fileName
- fprintf(stderr, "GPS file open error: file name = %s\n", fname);
- return 1;
- }
-
-#ifdef GPSDEBUG
- struct tm time; // decode the time of start of dive:
- utc_mkdate(divetime, &time);
- int dyr,dmon,dday,dhr,dmin;
- dyr = time.tm_year;
- dmon = time.tm_mon;
- dday = time.tm_mday;
- dhr = time.tm_hour;
- dmin = time.tm_min;
-#endif
-
- do {
- line++; // this is the sequence number of the trkpt xml element processed
- // Find next trkpt xml element (This function also detects </trk> that signals EOF):
- if (findXmlElement(&f1, QString("trkpt"), &buf, ' ')) // This is the normal exit point
- break; // for this routine
- // == Get coordinates: ==
- if (getSubstring(&f1, &buf, '"')) // read up to the end of the "lat=" label
- break; // on EOF
- if (buf != "lat=") {
- fprintf(stderr, "GPX parse error: cannot find latitude (trkpt #%d)\n", line);
- return 1;
- }
- if (getSubstring(&f1, &buf, '"')) // read up to the end of the latitude value
- break; // on EOF
- lat = buf.toDouble(); // Convert lat to decimal
- if (getSubstring(&f1, &buf, ' ')) // Read past space char
- break; // on EOF
- if (getSubstring(&f1, &buf, '"')) // Read up to end of "lon=" label
- break; // on EOF
- if (buf != "lon=") {
- fprintf(stderr, "GPX parse error: cannot find longitude (trkpt #%d)\n", line);
- return 1;
- }
- if (getSubstring(&f1, &buf, '"')) // get string with longitude
- break; // on EOF
- lon = buf.toDouble(); // Convert longitude to decimal
- // == get time: ==
- if (findXmlElement(&f1, QString("time"), &buf, '>')) // Find the <time> element
- break; // on EOF
- if (getSubstring(&f1, &buf, '<')) // Read the string containing date/time
- break; // on EOF
- bool ok;
- tm1.tm_year = buf.left(4).toInt(&ok, 10); // Extract the different substrings:
- tm1.tm_mon = buf.mid(5,2).toInt(&ok,10) - 1;
- tm1.tm_mday = buf.mid(8,2).toInt(&ok,10);
- tm1.tm_hour = buf.mid(11,2).toInt(&ok,10);
- tm1.tm_min = buf.mid(14,2).toInt(&ok,10);
- tm1.tm_sec = buf.mid(17,2).toInt(&ok,10);
- when = utc_mktime(&tm1) + time_offset;
- if (first_line) {
- first_line = false;
- coords.start_track = when; // Local time of start of GPS track
- }
- if ((when > divetime && found == false)) { // This GPS local time corresponds to the start time of the dive
- coords.lon = lon; // save the coordinates
- coords.lat = lat;
- found = true;
- }
-#ifdef GPSDEBUG
- utc_mkdate(when, &time); // print time and coordinates of each of the trkpt elements of the GPX file
- fprintf(stderr, " %02d: lat=%f lon=%f timestamp=%ld (%ld) %02d/%02d/%02d %02d:%02d dt=%ld %02d/%02d/%02d %02d:%02d\n", line, lat,
- lon, when, time_offset, time.tm_year, time.tm_mon+1, time.tm_mday, time.tm_hour, time.tm_min, divetime, dyr, dmon+1, dday,dhr, dmin );
-#endif
- } while (true); // This loop executes until EOF causes a break out of the loop
- coords.end_track = when; // This is the local time of the end of the GPS track
- f1.close();
- return 0;
-}
-
// Fill the visual elements of the synchronisation panel with information
void ImportGPS::updateUI()
{
@@ -247,7 +108,7 @@ void ImportGPS::updateUI()
void ImportGPS::changeZoneForward()
{
coords.timeZone_offset = abs(coords.timeZone_offset);
- getCoordsFromFile(); // If any of the time controls are changed
+ getCoordsFromGPXFile(&coords, fileName); // If any of the time controls are changed
updateUI(); // .. then recalculate the synchronisation
}
@@ -255,14 +116,14 @@ void ImportGPS::changeZoneBackwards()
{
if (coords.timeZone_offset > 0)
coords.timeZone_offset = 0 - coords.timeZone_offset;
- getCoordsFromFile();
+ getCoordsFromGPXFile(&coords, fileName);
updateUI();
}
void ImportGPS::changeDiffForward()
{
coords.settingsDiff_offset = abs(coords.settingsDiff_offset);
- getCoordsFromFile();
+ getCoordsFromGPXFile(&coords, fileName);
updateUI();
}
@@ -270,7 +131,7 @@ void ImportGPS::changeDiffBackwards()
{
if (coords.settingsDiff_offset > 0)
coords.settingsDiff_offset = 0 - coords.settingsDiff_offset;
- getCoordsFromFile();
+ getCoordsFromGPXFile(&coords, fileName);
updateUI();
}
@@ -279,7 +140,7 @@ void ImportGPS::timeDiffEditChanged()
coords.settingsDiff_offset = ui.timeDiffEdit->time().hour() * 3600 + ui.timeDiffEdit->time().minute() * 60;
if (ui.diff_backwards->isChecked())
coords.settingsDiff_offset = 0 - coords.settingsDiff_offset;
- getCoordsFromFile();
+ getCoordsFromGPXFile(&coords, fileName);
updateUI();
}
@@ -288,7 +149,7 @@ void ImportGPS::timeZoneEditChanged()
coords.timeZone_offset = ui.timeZoneEdit->time().hour() * 3600;
if (ui.timezone_backwards->isChecked())
coords.timeZone_offset = 0 - coords.timeZone_offset;
- getCoordsFromFile();
+ getCoordsFromGPXFile(&coords, fileName);
updateUI();
}
generated by cgit v1.2.3-70-g09d2 (git 2.47.0) at 2024-12-30 21:47:26 +0000