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Pick the correct timezoneoffset for the day in question

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Calculating the timezoneoffset for the current date really makes no sense
whatsoever when displaying a time that isn't "now".

Fixes #605

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Dirk Hohndel 2014-07-16 20:23:15 -07:00
parent bebcbfe92a
commit b3e662a895
3 changed files with 9 additions and 5 deletions
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2
helpers.h
View file

@ -27,7 +27,7 @@ void set_default_dive_computer(const char *vendor, const char *product);
void set_default_dive_computer_device(const char *name);
QString getSubsurfaceDataPath(QString folderToFind);
extern const QString get_dc_nickname(const char *model, uint32_t deviceid);
int gettimezoneoffset();
int gettimezoneoffset(time_t when = 0);
int parseTemperatureToMkelvin(const QString &text);
QString get_dive_date_string(timestamp_t when);
QString get_short_dive_date_string(timestamp_t when);

10
qt-gui.cpp
View file

@ -372,10 +372,14 @@ QString getSubsurfaceDataPath(QString folderToFind)
return QString("");
}
int gettimezoneoffset()
int gettimezoneoffset(time_t when)
{
QDateTime dt1 = QDateTime::currentDateTime();
QDateTime dt2 = dt1.toUTC();
QDateTime dt1, dt2;
if (when == 0)
dt1 = QDateTime::currentDateTime();
else
dt1 = QDateTime::fromMSecsSinceEpoch(when * 1000);
dt2 = dt1.toUTC();
dt1.setTimeSpec(Qt::UTC);
return dt2.secsTo(dt1);
}

2
qt-ui/maintab.cpp
View file

@ -380,7 +380,7 @@ void MainTab::updateDiveInfo(bool clear)
if (!clear) {
updateGpsCoordinates(&displayed_dive);
QDateTime localTime = QDateTime::fromTime_t(displayed_dive.when - gettimezoneoffset());
QDateTime localTime = QDateTime::fromTime_t(displayed_dive.when - gettimezoneoffset(displayed_dive.when));
ui.dateEdit->setDate(localTime.date());
ui.timeEdit->setTime(localTime.time());
if (MainWindow::instance() && MainWindow::instance()->dive_list()->selectedTrips().count() == 1) {