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Dive site: introduce proxy model DiveSiteSortedModel

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The LocationInformationModel used to sort its entries and was completely
rebuilt after every change. This makes it rather complex to support
incremental changes.

Instead, keep LocationInformationModel sorted by UUID so that indexes
are consistent with indices in the core dive site table.

Implement sorting by other columns than name and enable sorting in the
dive site view.

Finally, don't cache the list of dive site names for the mobile app,
since that would also need some rather convoluted methods of keeping
the list up to date. Calculate it on the fly.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2019-03-12 17:28:43 +01:00 • committed by Dirk Hohndel
parent 59f1191d0c
commit e99c4c9059
6 changed files with 71 additions and 19 deletions
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11
qt-models/divelocationmodel.h
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@ -32,12 +32,19 @@ public:
public slots:
void update();
QStringList allSiteNames() const;
void diveSiteDiveCountChanged(struct dive_site *ds);
void diveSiteAdded(struct dive_site *ds, int idx);
void diveSiteDeleted(struct dive_site *ds, int idx);
};
class DiveSiteSortedModel : public QSortFilterProxyModel {
Q_OBJECT
private:
QStringList locationNames;
bool filterAcceptsRow(int sourceRow, const QModelIndex &source_parent) const override;
bool lessThan(const QModelIndex &i1, const QModelIndex &i2) const override;
public:
DiveSiteSortedModel();
QStringList allSiteNames() const;
};
// To access only divesites at the given GPS coordinates with the exception of a given dive site