diff options
Diffstat (limited to 'src')
-rw-r--r-- | src/corelib/doc/snippets/code/src_corelib_kernel_qabstractitemmodel.cpp | 34 | ||||
-rw-r--r-- | src/corelib/itemmodels/qabstractitemmodel.cpp | 22 | ||||
-rw-r--r-- | src/corelib/itemmodels/qabstractitemmodel.h | 4 |
3 files changed, 60 insertions, 0 deletions
diff --git a/src/corelib/doc/snippets/code/src_corelib_kernel_qabstractitemmodel.cpp b/src/corelib/doc/snippets/code/src_corelib_kernel_qabstractitemmodel.cpp index 2f81b15752..c448c75206 100644 --- a/src/corelib/doc/snippets/code/src_corelib_kernel_qabstractitemmodel.cpp +++ b/src/corelib/doc/snippets/code/src_corelib_kernel_qabstractitemmodel.cpp @@ -97,3 +97,37 @@ beginResetModel(); myData.clear(); endResetModel(); //! [11] + +//! [12] +class CustomDataProxy : public QSortFilterProxyModel +{ + Q_OBJECT +public: + CustomDataProxy(QObject *parent) + : QSortFilterProxyModel(parent) + { + } + + ... + + QVariant data(const QModelIndex &index, int role) + { + if (role != Qt::BackgroundRole) + return QSortFilterProxyModel::data(index, role); + + if (m_customData.contains(index.row())) + return m_customData.value(index.row()); + return QSortFilterProxyModel::data(index, role); + } + +private slots: + void resetInternalData() + { + m_customData.clear(); + } + +private: + QHash<int, QVariant> m_customData; +}; +//! [12] + diff --git a/src/corelib/itemmodels/qabstractitemmodel.cpp b/src/corelib/itemmodels/qabstractitemmodel.cpp index 2a2d376a26..90e9886c90 100644 --- a/src/corelib/itemmodels/qabstractitemmodel.cpp +++ b/src/corelib/itemmodels/qabstractitemmodel.cpp @@ -866,6 +866,27 @@ void QAbstractItemModelPrivate::columnsRemoved(const QModelIndex &parent, } /*! + \since 4.8 + + This slot is called just after the internal data of a model is cleared + while it is being reset. + + This slot is provided the convenience of subclasses of concrete proxy + models, such as subclasses of QSortFilterProxyModel which maintain extra + data. + + \snippet code/src_corelib_kernel_qabstractitemmodel.cpp 12 + + \note Due to a mistake, this slot is missing in Qt 5.0. + + \sa modelAboutToBeReset(), modelReset() +*/ +void QAbstractItemModel::resetInternalData() +{ + +} + +/*! \class QModelIndex \inmodule QtCore @@ -3055,6 +3076,7 @@ void QAbstractItemModel::endResetModel() { Q_D(QAbstractItemModel); d->invalidatePersistentIndexes(); + QMetaObject::invokeMethod(this, "resetInternalData"); emit modelReset(QPrivateSignal()); } diff --git a/src/corelib/itemmodels/qabstractitemmodel.h b/src/corelib/itemmodels/qabstractitemmodel.h index 8e4f12e9ea..6a57ccaca8 100644 --- a/src/corelib/itemmodels/qabstractitemmodel.h +++ b/src/corelib/itemmodels/qabstractitemmodel.h @@ -330,6 +330,10 @@ public Q_SLOTS: virtual bool submit(); virtual void revert(); +protected Q_SLOTS: + // Qt 6: Make virtual + void resetInternalData(); + protected: QAbstractItemModel(QAbstractItemModelPrivate &dd, QObject *parent = 0); |