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core: replace divesite_table_t by a vector of std::unique_ptr<>s

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This is a long commit, because it introduces a new abstraction:
a general std::vector<> of std::unique_ptrs<>.

Moreover, it replaces a number of pointers by C++ references,
when the callee does not suppoert null objects.

This simplifies memory management and makes ownership more
explicit. It is a proof-of-concept and a test-bed for
the other core data structrures.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2024-05-11 11:47:45 +02:00 • committed by bstoeger
parent 411188728d
commit e39dea3d68
41 changed files with 451 additions and 426 deletions
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2
qt-models/divelocationmodel.h
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@ -19,7 +19,7 @@ public:
// Thus, different views can connect to different models.
enum Columns { EDIT, REMOVE, NAME, DESCRIPTION, NUM_DIVES, LOCATION, NOTES, DIVESITE, TAXONOMY, COLUMNS };
enum Roles { DIVESITE_ROLE = Qt::UserRole + 1 };
static QVariant getDiveSiteData(const struct dive_site *ds, int column, int role);
static QVariant getDiveSiteData(const struct dive_site &ds, int column, int role);
LocationInformationModel(QObject *obj = 0);
static LocationInformationModel *instance();