SoSFEngine(3)

NAME
SoSFEngine - The SoSFEngine class is a container for a single engine.

SYNOPSIS

#include <Inventor/fields/SoSFEngine.h>

Inherits SoSField.

  Public Member Functions
virtual SoType getTypeId (void) const
virtual void copyFrom (const SoField &field)
const SoSFEngine & operator= (const SoSFEngine &field)
virtual SbBool isSame (const SoField &field) const
SoEngine * getValue (void) const
void setValue (SoEngine *newvalue)
SoEngine * operator= (SoEngine *newvalue)
int operator== (const SoSFEngine &field) const
int operator!= (const SoSFEngine &field) const
virtual void fixCopy (SbBool copyconnections)
virtual SbBool referencesCopy (void) const

  Static Public Member Functions
static void * createInstance (void)
static SoType getClassTypeId (void)
static void initClass (void)

  Protected Attributes
SoEngine * value

  Additional Inherited Members

Detailed Description

The SoSFEngine class is a container for a single engine. This field container stores a pointer to a Coin engine. It takes care of the necessary functionality for handling copy, import and export operations.

Note that the engine pointer stored in a field instance of this type may be a NULL pointer.

See also
    SoEngine, SoMFEngine

Member Function Documentation

  void * SoSFEngine::createInstance (void) [static]
This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.
 Creates a new instance of the class type corresponding to the SoType object.

  SoType SoSFEngine::getClassTypeId (void) [static]
This static method returns the SoType object associated with objects of this class.

  SoType SoSFEngine::getTypeId (void) const [virtual]
Returns the type identification of an object derived from a class inheriting SoField. This is used for runtime type checking and 'downward' casting.

Implements SoField.

  void SoSFEngine::copyFrom (const SoField & f) [virtual]
Copy value(s) from f into this field. f must be of the same type as this field.

Implements SoField.

  SbBool SoSFEngine::isSame (const SoField & f) const [virtual]
Check for equal type and value(s).

Implements SoField.

  void SoSFEngine::initClass (void) [static]
Internal method called upon initialization of the library (from SoDB::init()) to set up the type system.

  void SoSFEngine::fixCopy (SbBool copyconnections) [virtual]
This method is internally called after SoField::copyFrom() during scene graph copies, and should do the operations necessary for fixing up the field instance after it has gotten a new value.

The default method in the SoField superclass does nothing.

The application programmer should normally not need to consider this method, unless he constructs a complex field type which contains new references to container instances (i.e. nodes or engines). Overriding this method is then necessary to update the reference pointers, as they could have been duplicated during the copy operation.

Reimplemented from SoField.

  SbBool SoSFEngine::referencesCopy (void) const [virtual]
Returns TRUE if this field has references to any containers in the scene graph which are also duplicated during the copy operation.

Note that this method only is valid to call during copy operations.

See also the note about the relevance of the fixCopy() method for application programmers, as it is applicable on this method as well.

Reimplemented from SoField.

Author

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