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diff --git a/sources/pyside6/doc/developer/adapt_qt.rst b/sources/pyside6/doc/developer/adapt_qt.rst new file mode 100644 index 000000000..aec81fb0f --- /dev/null +++ b/sources/pyside6/doc/developer/adapt_qt.rst @@ -0,0 +1,54 @@ +.. _developer-adapt-qt: + +Adapt to new Qt versions +======================== + +Adapting to source changes +-------------------------- + +The dev branch of PySide is switched to a new Qt minor version +after its API review is finished and the API is stable. + +Until that happens, a patch should be continuously developed +to adapt to this version. + +The `new classes page <https://doc-snapshots.qt.io/qt6-6.7/newclasses67.html>`_ +is a good source of information for new API. + +New classes and should be added to the type system file (using +a ``since`` attribute) and ``CMakeList.txt`` file of the respective module. + +Should the class not be available on all platforms, the respective +``QT_CONFIG`` macro needs to be specified in the type system file and +feature checks need to be added to ``CMakeList.txt`` (see for example +``QPermission``). + +The process consists of running a build and evaluating the log file. +The script +`shiboken2tasks.py <https://code.qt.io/cgit/qt-creator/qt-creator.git/tree/scripts/shiboken2tasks.py>`_ +from the *Qt Creator* repository can be used to convert the shiboken warnings +into a `task file <https://doc.qt.io/qtcreator/creator-task-lists.html>`_ +for display in the build issues pane of *Qt Creator*. + +Warnings about new enumerations will be shown there; they should be added +to type system file using a ``since`` attribute. + +Warnings about not finding a function signature for modification +also need to be handled; mostly this is a sign of a function parameter +being changed from ``int`` to ``qsizetype`` or similar. + +If the build succeeds, a test run should be done. + +The Qt source code should be checked for new overloads +(indicated by ``QT6_DECL_NEW_OVERLOAD_TAIL`` starting from 6.7). +The resolution needs to be decided for each individual case, +mostly by removing old functions and using ``<declare-function>`` +to declare new API. + +Bumping the version +------------------- + +To instruct ``COIN`` to use the next version of Qt, adapt the files +``coin/dependencies.yaml`` and/or ``product_dependencies.yaml`` accordingly. +Next, the wheel names should be changed by adapting +``sources/shiboken6/.cmake.conf`` and ``sources/pyside6/.cmake.conf``. |