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2017-05-06Check if we have an instance before dereferencing itGravatar Dirk Hohndel
If we don't have a GPS service userid in the preferences and the GpsLocation class isn't instantiated, this would cause a crash. Fixes #367 Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2017-04-29Add SPDX header to remaining core filesGravatar Dirk Hohndel
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2017-03-24Fix double to int truncation in C++ codeGravatar Jeremie Guichard
Wfloat-conversion enabled for C++ part of the code Fix warnings raised by the flag using lrint Original issue reported on the mailing list: The ascent/descent rates are sometimes not what is expected. E.g. setting the ascent rate to 10m/min results in an actual ascent rate of 9m/min. This is due to truncating the ascent rate preference, then effectively rounding up the time to reach each stop to 2s intervals. The result being that setting the ascent rate to 10m/min results in 20s to ascend 3m (9m/min), when it should be exactly 18s. Reported-by: John Smith <noseygit@hotmail.com> Reported-by: Rick Walsh <rickmwalsh@gmail.com> Signed-off-by: Jeremie Guichard <djebrest@gmail.com>
2017-03-08Change calls to rint into lrint avoiding conversion warningsGravatar Jeremie Guichard
Using gcc option "-Wfloat-conversion" is useful to catch potential conversion errors (where lrint should be used). rint returns double and still raises the same warning, this is why this change updates all rint calls to lrint. In few places, where input type is a float, corresponding lrinf is used. Signed-off-by: Jeremie Guichard <djebrest@gmail.com>
2016-08-10Unify handling of QDateTime time zone informationGravatar Robert C. Helling
Subsurface uses "local time" which in particular means we never display time zone information to the user. The user (and our file format) only sees times like 5pm or 17:00. A better name than local time (which could mean "local at the dive spot) would be "watch time", the time displayed by the diver's watch when she entered the water. Internally, we store times as time_t, seconds since Jan 1 1970 0:00 UTC. Our convention for conversion between 5pm and time_t as always been to treat 5pm as if it were UTC. Then confusion arose since Qt's QDateTime (which is tied to UI elements like QTimeEdit and similar) is time zone aware and by default assumes the system time zone. So when we set a QDateTime to 5pm and then later convert it to time_t we have to take care about the difference between UTC and the system time zone. This patch unifies our solution to this problem: With it, we set all QDateTime's time zone to UTC. This means we don't have to correct for a time zone anymore when converting to time_t (note, however, the signedness issue: Qt's idea of time_t is broken since it assumes it to be unsigned thus not allowing for dates before 1970. Better use the millisecont variants). We only need to be careful about time zones when using the current time. With this convention, when assigning the current time to a QDateTime, we need to shift for the time zone since its value in UTC should actually be the watch time of the user who is most likely used to the system time zone. Signed-off-by: Robert C. Helling <helling@atdotde.de> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2016-04-17With patched Qt 5.6 for iOS correctly handle disabled GPS sourceGravatar Dirk Hohndel
Qt 5.6.0 is broken when it comes to using CoreLocationService on iOS. It doesn't even check if the location service is enabled. My patches fix that and make Qt set an error code right after service creation. Having the service creation fail is actually the wrong thing to do because then Qt switches over to GeoClue and that really isn't helpful for our needs here. Additionally, Qt 5.6.0 without my patches doesn't follow the REQUIRED flow of using the location service as it does not check the access permissions before accessing the GPS service - without doing so the GPS service will not run in the background. Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2016-04-17GPS provider: change haveGPS status if GPS source returns errorGravatar Dirk Hohndel
If the GPS source returns an error that could be an indication that the user hasn't given us permission to use it, so switch our status to NOGPS. Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2016-04-17GPS provider: track tristate information for GPS sourceGravatar Dirk Hohndel
Initially we don't know if we have a source. After that we may think that we have one, or not have one (but that can actually change while the program is running if the user, for example, turns the source off or switches to airplane mode). Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2016-04-15QML UI: rewrite the commitChanges functionGravatar Dirk Hohndel
I couldn't figure out how to break this down into small, useful commits. Part of the problem is that I kept going while working on this and as you can see from looking at the commit, diff tries so hard to find small code fragments that moved around, that the diff overall becomes quite unreadable and it seemed impossible to recreate the sequence of steps after the fact. It all started with adding the parsing for the GPS coordinates. But while testing that code I found several issues with the rest of the function. Most importantly it seemed ridiculous that we carefully tried to match the texts that the DiveObjectHelper would create for the various fields, instead of just using the DiveObjectHelper to do just that. And once I had converted that I once again realized just how long and hard to understand that function was getting and decided to break out some of the more complex parts into their own helper functions. But of course all this didn't happen in this logical, structured, ordered way. Instead I did all of these things at the same time, testing, rearranging, etc. So in the end I went with one BIG commit that does all of this in one fell swoop. This adds four helper functions to deal with start time/date, duration, location and gps coordinates, and depth of the dive. To avoid mistakes when dealing with the GPS coordinates, there's another helper to encapsulate the creation of the dive site and we switched to a current GPS location. Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2016-04-04Move subsurface-core to core and qt-mobile to mobile-widgetsGravatar Dirk Hohndel
Having subsurface-core as a directory name really messes with autocomplete and is obviously redundant. Simmilarly, qt-mobile caused an autocomplete conflict and also was inconsistent with the desktop-widget name for the directory containing the "other" UI. And while cleaning up the resulting change in the path name for include files, I decided to clean up those even more to make them consistent overall. This could have been handled in more commits, but since this requires a make clean before the build, it seemed more sensible to do it all in one. Signed-off-by: Dirk Hohndel <dirk@hohndel.org>