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Dive list: clear internal data when clearing model

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The DiveListModelBase::clear() implementation was flawed: It cleared
the data in the core, but left the data in the model untouched.
The code was relying on the fact that the caller would reset the
model manually. Not a good idea.

Therefore, clear the internal data to keep the model consistent at
all times.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2019-11-18 18:44:17 +01:00 • committed by Dirk Hohndel
parent 9f573df971
commit 635d67ee7f
2 changed files with 14 additions and 0 deletions
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11
qt-models/divetripmodel.cpp
View file

@ -376,6 +376,7 @@ void DiveTripModelBase::clear()
{ {
beginResetModel(); beginResetModel();
clear_dive_file_data(); clear_dive_file_data();
clearData();
emit diveListNotifier.divesSelected({}, nullptr); // Inform profile, etc of changed selection emit diveListNotifier.divesSelected({}, nullptr); // Inform profile, etc of changed selection
endResetModel(); endResetModel();
} }
@ -607,6 +608,11 @@ int DiveTripModelTree::rowCount(const QModelIndex &parent) const
return entry.d_or_t.trip ? entry.dives.size() : 0; return entry.d_or_t.trip ? entry.dives.size() : 0;
} }
void DiveTripModelList::clearData()
{
items.clear();
}
static const quintptr noParent = ~(quintptr)0; // This is the "internalId" marker for top-level item static const quintptr noParent = ~(quintptr)0; // This is the "internalId" marker for top-level item
QModelIndex DiveTripModelTree::index(int row, int column, const QModelIndex &parent) const QModelIndex DiveTripModelTree::index(int row, int column, const QModelIndex &parent) const
@ -1238,6 +1244,11 @@ int DiveTripModelList::rowCount(const QModelIndex &parent) const
return parent.isValid() ? 0 : items.size(); return parent.isValid() ? 0 : items.size();
} }
void DiveTripModelTree::clearData()
{
items.clear();
}
QModelIndex DiveTripModelList::index(int row, int column, const QModelIndex &parent) const QModelIndex DiveTripModelList::index(int row, int column, const QModelIndex &parent) const
{ {
if (!hasIndex(row, column, parent)) if (!hasIndex(row, column, parent))

3
qt-models/divetripmodel.h
View file

@ -100,6 +100,7 @@ protected:
static QVariant tripData(const dive_trip *trip, int column, int role); static QVariant tripData(const dive_trip *trip, int column, int role);
virtual dive *diveOrNull(const QModelIndex &index) const = 0; // Returns a dive if this index represents a dive, null otherwise virtual dive *diveOrNull(const QModelIndex &index) const = 0; // Returns a dive if this index represents a dive, null otherwise
virtual void clearData() = 0;
}; };
class DiveTripModelTree : public DiveTripModelBase class DiveTripModelTree : public DiveTripModelBase
@ -119,6 +120,7 @@ public:
DiveTripModelTree(QObject *parent = nullptr); DiveTripModelTree(QObject *parent = nullptr);
private: private:
int rowCount(const QModelIndex &parent) const override; int rowCount(const QModelIndex &parent) const override;
void clearData() override;
QModelIndex index(int row, int column, const QModelIndex &parent) const override; QModelIndex index(int row, int column, const QModelIndex &parent) const override;
QModelIndex parent(const QModelIndex &index) const override; QModelIndex parent(const QModelIndex &index) const override;
QVariant data(const QModelIndex &index, int role) const override; QVariant data(const QModelIndex &index, int role) const override;
@ -184,6 +186,7 @@ public:
DiveTripModelList(QObject *parent = nullptr); DiveTripModelList(QObject *parent = nullptr);
private: private:
int rowCount(const QModelIndex &parent) const override; int rowCount(const QModelIndex &parent) const override;
void clearData() override;
QModelIndex index(int row, int column, const QModelIndex &parent) const override; QModelIndex index(int row, int column, const QModelIndex &parent) const override;
QModelIndex parent(const QModelIndex &index) const override; QModelIndex parent(const QModelIndex &index) const override;
QVariant data(const QModelIndex &index, int role) const override; QVariant data(const QModelIndex &index, int role) const override;