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Dive site: don't emit divesChanged signals when editing dive site

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When editing the dive site, for certain fields a divesChanged signal
was emitted so that the dive-list can be updated.

Arguably it is wrong to decide which fields are relevant to the
dive list in the undo-command code. Therefore, let the list
catch the dive-site-edited signal and decide itself.

But the actual reason for this commit is that if the dive-site
field of a dive changes, we might have to reload the dive-location-model
because suddenly a new dive site appears. Now if this is done
in QML context on some Qt version (notably 5.9) we get crashes
later on. But that can happen if the user moves a flag. So in that
case only send a diveSiteChanged signal.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2019-08-31 15:05:11 +02:00 • committed by Dirk Hohndel
parent 093adf1ea8
commit f27d440bb3
3 changed files with 41 additions and 17 deletions
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17
desktop-widgets/command_divesite.cpp
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@ -186,19 +186,6 @@ static void swap(char *&c, QString &q)
q = s;
}
// Helper function: collect the dives that are at the given dive site
static QVector<dive *> getDivesForSite(struct dive_site *ds)
{
QVector<dive *> diveSiteDives;
diveSiteDives.reserve(ds->dives.nr);
for (int i = 0; i < ds->dives.nr; ++i)
diveSiteDives.push_back(ds->dives.dives[i]);
return diveSiteDives;
}
EditDiveSiteName::EditDiveSiteName(dive_site *dsIn, const QString &name) : ds(dsIn),
value(name)
{
@ -214,7 +201,6 @@ void EditDiveSiteName::redo()
{
swap(ds->name, value);
emit diveListNotifier.diveSiteChanged(ds, LocationInformationModel::NAME); // Inform frontend of changed dive site.
emit diveListNotifier.divesChanged(getDivesForSite(ds), DiveField::DIVESITE); // dive site name can be shown in the dive list
}
void EditDiveSiteName::undo()
@ -286,8 +272,6 @@ void EditDiveSiteCountry::redo()
taxonomy_set_country(&ds->taxonomy, copy_qstring(value), taxonomy_origin::GEOMANUAL);
value = old;
emit diveListNotifier.diveSiteChanged(ds, LocationInformationModel::TAXONOMY); // Inform frontend of changed dive site.
emit diveListNotifier.divesChanged(getDivesForSite(ds), DiveField::DIVESITE); // Country can be shown in the dive list
}
void EditDiveSiteCountry::undo()
@ -315,7 +299,6 @@ void EditDiveSiteLocation::redo()
{
std::swap(value, ds->location);
emit diveListNotifier.diveSiteChanged(ds, LocationInformationModel::LOCATION); // Inform frontend of changed dive site.
emit diveListNotifier.divesChanged(getDivesForSite(ds), DiveField::DIVESITE); // the globe icon in the dive list shows whether we have coordinates
}
void EditDiveSiteLocation::undo()