diff options
Diffstat (limited to 'src/corelib/itemmodels/qrangemodeladapter.qdoc')
| -rw-r--r-- | src/corelib/itemmodels/qrangemodeladapter.qdoc | 39 |
1 files changed, 30 insertions, 9 deletions
diff --git a/src/corelib/itemmodels/qrangemodeladapter.qdoc b/src/corelib/itemmodels/qrangemodeladapter.qdoc index 5ab128a8c5f..ff595529d34 100644 --- a/src/corelib/itemmodels/qrangemodeladapter.qdoc +++ b/src/corelib/itemmodels/qrangemodeladapter.qdoc @@ -118,11 +118,9 @@ would bypass the QAbstractItemModel notification protocol, those reference objects prevent direct modifications of the items. - \note Calling mutable overloads generates some overhead. Make a const copy - of the adapter (which will not copy the data), or use \c{std::as_const} to - make sure that only the const overloads are used in performance critical, - read-heavy code. This is the same technique as when accessing elements in - an implicitly shared Qt container. + \note Accessing the reference object always makes a call to the model to get + a copy of the value. This can be expensive; for performance critical access + to data, store a copy. \section3 Item access @@ -331,16 +329,39 @@ /*! \fn template <typename Range, typename Protocol, typename Model> template <typename NewRange, QRangeModelAdapter<Range, Protocol, Model>::if_assignable_range<NewRange>> void QRangeModelAdapter<Range, Protocol, Model>::setRange(NewRange &&newRange) - \fn template <typename Range, typename Protocol, typename Model> template <typename NewRange, QRangeModelAdapter<Range, Protocol, Model>::if_assignable_range<NewRange>> QRangeModelAdapter &QRangeModelAdapter<Range, Protocol, Model>::operator=(NewRange &&newRange) + \fn template <typename Range, typename Protocol, typename Model> template <typename NewRange, QRangeModelAdapter<Range, Protocol, Model>::if_assignable_range<NewRange>, QRangeModelAdapter<Range, Protocol, Model>::unless_adapter<NewRange>> QRangeModelAdapter &QRangeModelAdapter<Range, Protocol, Model>::operator=(NewRange &&newRange) + + Replaces the contents of the model with the rows in \a newRange, possibly + using move semantics. - Assigns \a newRange to the stored range, possibly using move semantics. This function makes the model() emit the \l{QAbstractItemModel::}{modelAboutToBeReset()} and \l{QAbstractItemModel::}{modelReset()} signals. \constraints \c Range is mutable, and \a newRange is of a type that can be - assigned to \c Range. + assigned to \c Range, but not a QRangeModelAdapter. + + \sa range(), at(), model(), assign() +*/ + +/*! + \fn template <typename Range, typename Protocol, typename Model> template <typename Row, QRangeModelAdapter<Range, Protocol, Model>::if_assignable_range<std::initializer_list<Row>>> void QRangeModelAdapter<Range, Protocol, Model>::setRange(std::initializer_list<Row> newRange) + \fn template <typename Range, typename Protocol, typename Model> template <typename Row, QRangeModelAdapter<Range, Protocol, Model>::if_assignable_range<std::initializer_list<Row>>> QRangeModelAdapter &QRangeModelAdapter<Range, Protocol, Model>::assign(std::initializer_list<Row> newRange) + \fn template <typename Range, typename Protocol, typename Model> template <typename Row, QRangeModelAdapter<Range, Protocol, Model>::if_assignable_range<std::initializer_list<Row>>> QRangeModelAdapter &QRangeModelAdapter<Range, Protocol, Model>::operator=(std::initializer_list<Row> newRange) + + Replaces the contents of the model with the rows in \a newRange. + + \constraints \c Range is mutable, and \a newRange can be assigned to \c Range. + + \sa range(), at, model() +*/ + +/*! + \fn template <typename Range, typename Protocol, typename Model> template <typename InputIterator, typename Sentinel, typename I = Impl, QRangeModelAdapter<Range, Protocol, Model>::if_writable<I>> void QRangeModelAdapter<Range, Protocol, Model>::setRange(InputIterator first, Sentinel last) + \fn template <typename Range, typename Protocol, typename Model> template <typename InputIterator, typename Sentinel, typename I = Impl, QRangeModelAdapter<Range, Protocol, Model>::if_writable<I>> void QRangeModelAdapter<Range, Protocol, Model>::assign(InputIterator first, Sentinel last) + + Replaces the contents of the models with the rows in the range [\a first, \a last). - \sa range(), at(), model() + \sa range(), at, model() */ /*! |
