QAbstractFunctor is an abstract base class for all functors. More...
|CMake:||find_package(Qt6 REQUIRED COMPONENTS 3dcore)
target_link_libraries(mytarget PRIVATE Qt6::3dcore)
|qmake:||QT += 3dcore|
|const T *||functor_cast(const Qt3DCore::QAbstractFunctor *other) const|
|virtual qintptr||id() const = 0|
The QAbstractFunctor is used as a base class for all functors and data generators in Qt3DCore module.
When user defines a new functor or generator, they need to implement the QAbstractFunctor::id() method, which should be done using the
QT3D_FUNCTOR macro in
the class definition.
This method is used to cast functor other to type T if the other is of type T (or of subclass); otherwise returns 0. This method works similarly to qobject_cast(), except with functors derived from QAbstractFunctor.
Warning: If T was not declared with QT3D_FUNCTOR macro, then the results are undefined.
[pure virtual]qintptr QAbstractFunctor::id() const
Returns a pointer to the id of the functor.
This macro assigns functor id to the Class, which is used by QAbstractFunctor::functor_cast to determine if the cast can be done.
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