QAbstractFunctor Class

class Qt3DRender ::QAbstractFunctor

QAbstractFunctor is an abstract base class for all functors. 更多...

头：	#include <QAbstractFunctor>
qmake:	QT += 3drender
Since:	Qt 5.7
继承者：	Qt3DRender::QBufferDataGenerator , Qt3DRender::QTextureGenerator ，和 Qt3DRender::QTextureImageDataGenerator

该类在 Qt 5.7 引入。

所有成员列表，包括继承成员

公共函数

virtual	~QAbstractFunctor ()
const T *	functor_cast (const Qt3DRender::QAbstractFunctor * other ) const
virtual qintptr	id () const = 0

宏

QT3D_FUNCTOR ( Class )

详细描述

The QAbstractFunctor is used as a base class for all functors and data generators in Qt3DRender 模块。

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.

成员函数文档编制

`[virtual]` QAbstractFunctor:: ~QAbstractFunctor ()

Desctructor

template <typename T> const T QAbstractFunctor:: functor_cast (const Qt3DRender::QAbstractFunctor other ) const

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 .

警告： 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.

宏文档编制

QT3D_FUNCTOR ( Class )

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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