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Fix ExpressionSorter docs (#45)

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mitchcurtis 2017-10-13 00:50:57 +02:00 committed by oKcerG
parent 15ccba1f14
commit 26e2a983eb
1 changed files with 14 additions and 3 deletions
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17
sorter.cpp
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@ -294,9 +294,20 @@ int StringSorter::compare(const QModelIndex &sourceLeft, const QModelIndex &sour
/*!
\qmlproperty expression ExpressionSorter::expression
An expression to implement custom sorting, it must evaluate to a bool.
It has the same syntax has a \l {http://doc.qt.io/qt-5/qtqml-syntax-propertybinding.html} {Property Binding} except it will be evaluated for each of the source model's rows.
Model data is accessible for both row with the \c indexLeft, \c modelLeft, \c indexRight and \c modelRight properties.
An expression to implement custom sorting. It must evaluate to a bool.
It has the same syntax has a \l {http://doc.qt.io/qt-5/qtqml-syntax-propertybinding.html} {Property Binding}, except that it will be evaluated for each of the source model's rows.
Model data is accessible for both rows with the \c modelLeft, and \c modelRight properties:
\code
sorters: ExpressionSorter {
expression: {
return modelLeft.someRole < modelRight.someRole;
}
}
\endcode
The \c index of the row is also available through \c modelLeft and \c modelRight.
The expression should return \c true if the value of the left item is less than the value of the right item, otherwise returns false.
This expression is reevaluated for a row every time its model data changes.