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| author | Fabian Kosmale <fabian.kosmale@qt.io> | 2020-11-17 11:20:29 +0100 |
|---|---|---|
| committer | Fabian Kosmale <fabian.kosmale@qt.io> | 2020-11-17 20:11:50 +0100 |
| commit | 1c32550827d6dfed7465a984092c527f31d7039f (patch) | |
| tree | 60afaf4632b1356638b4e8d49ff496f42f66898c | |
| parent | ec4fd8832e5bdecf4cf6dcb40660971f8d294e8a (diff) | |
Porting Guide: Mention QQmlListProperty change
Change-Id: I173e2ff05b3fc3bbe56df423abcbfc84bdc2a17a
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
| -rw-r--r-- | src/qml/doc/src/qt6-changes.qdoc | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/src/qml/doc/src/qt6-changes.qdoc b/src/qml/doc/src/qt6-changes.qdoc index c81d64b662..1e958479f6 100644 --- a/src/qml/doc/src/qt6-changes.qdoc +++ b/src/qml/doc/src/qt6-changes.qdoc @@ -71,7 +71,31 @@ the engine. As with \c variant properties, code that relied on implicit string conversions need to use the corresponding functions of the Qt object. - \section1 Removed API + \section1 Source Incompatible API Changes + + \section2 Changed API + + \c QQmlListProperty's \c CountFunction and \c AtFunction have been changed to use \c qsizetype + instead of \c int to align with the corresponding changes in Qt's containers. + + \oldcode + int myCountFunction(QQmlListProperty<MyType> *); + MyType *myAtFunction(QQmlListProperty<MyType> *, int); + + QQmlListProperty<MyType> myReadOnlyList(containingObject, container, &myCountFunction, + &myAtFunction); + \newcode + qsizetype myCountFunction(QQmlListProperty<MyType> *); + MyType *myAtFunction(QQmlListProperty<MyType> *, qsizetype); + + QQmlListProperty<MyType> myReadOnlyList(containingObject, container, &myCountFunction, + &myAtFunction); + \endcode + + Code which needs to supports both Qt 5 and Qt 6 can either use a typedef which is \c int in Qt 5 + and \c qsizetype in Qt 6, or use \c QList::size_type, which already is such a type alias. + + \section2 Removed API Various deprecated functions have been removed. |