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Rewrite dive edit logic

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The existing code took an odd approach. It tried to change all selected
dives whenever the user edited a field, and kept all this backup data in
case the user rejected the edits.

This code takes the opposite approach. Only edit a copy of the selected
dive and then when the user accepts it, edit all the dives and when the
user rejects the edit simply redraw the screen (as all the "real" data is
still unchanged).

This not only saves quite a bit of code, it should be much easier to get
correct.

Admitedly this code will need quite a bit more testing to make sure it
works as intended, but as far as I can tell it already gets more scenarios
right than the previous implementation.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Dirk Hohndel 2014-06-02 18:13:50 -07:00
parent db4a003ef5
commit eb9d6d0f94
4 changed files with 148 additions and 214 deletions
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5
qthelper.cpp
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@ -161,10 +161,13 @@ bool parseGpsText(const QString &gps_text, double *latitude, double *longitude)
return false;
}
bool gpsHasChanged(struct dive *dive, struct dive *master, const QString &gps_text, bool *parsed)
bool gpsHasChanged(struct dive *dive, struct dive *master, const QString &gps_text, bool *parsed_out)
{
double latitude, longitude;
int latudeg, longudeg;
bool ignore;
bool *parsed = parsed_out ?: &ignore;
/* if we have a master and the dive's gps address is different from it,
* don't change the dive */