Class: TLinkedScenePort

Declaration: GrafPort.h

Taxonomy Categories:

Member Functions:

Interface Category:

API.

Inherits From:

TLinkedGrafPort

Inherited By:

None.

Purpose:

TLinkedScenePort is a concrete class, derived from TLinkedGrafPort, that concatenates a scene state with a parent port. The TLinkedScenePort constructors take an argument that specifies a scene state. When a new scene state is used, an identity 3-D model matrix is set up to ensure the correct behavior when nested scene states are used.

Instantiation:

Allocate on the heap or the stack.

Deriving Classes:

None.

Concurrency:

Not multithread safe.

Resource Use:

The parent port must exist as long as the child port exists.

Member Function: TLinkedScenePort::TLinkedScenePort

TLinkedScenePort (TGrafPort * referencedParentPort, TLinkableClippingSceneState * referencedSceneState)
TLinkedScenePort (TGrafPort * referencedParentPort, TLinkableSceneState * referencedSceneState)

Interface Category:

API.

Purpose:

Constructs a new TLinkedClipPort with the specified TGrafPort as its parent, concatenating the specified clipping scene state with the parent port's state.
Constructs a new TLinkedClipPort with the specified TGrafPort as its parent, concatenating the specified scene state with the parent port's state.

Calling Context:

Call this function directly.
Call this function directly.

Parameters:

TGrafPort * referencedParentPort -The graph port to use as the parent.
TLinkableClippingSceneState * referencedSceneState -The clipping scene state to concatenate with the parent port's state.
TGrafPort * referencedParentPort -The graph port to use as the parent.
TLinkableSceneState * referencedSceneState -The scene state to concatenate with the parent port's state.

Return Value:

None.

Exceptions:

Throws no exceptions, passes all exceptions through.

Concurrency:

Not multithread safe.

Other Considerations:

None.

Member Function: TLinkedScenePort::~TLinkedScenePort

virtual ~ TLinkedScenePort ()

Interface Category:

API.

Purpose:

Destructor.

Calling Context:

Called to destroy an object.

Parameters:

Takes no parameters.

Return Value:

None.

Exceptions:

Throws no exceptions, passes all exceptions through.

Concurrency:

Not multithread safe.

Other Considerations:

None.

Member Function: TLinkedScenePort::GetState

virtual const TGrafState * GetState () const

Interface Category:

API.

Purpose:

Returns a pointer to a TGrafState object that represents the concatenated graphic state of this object.

Calling Context:

Do not call this function directly. This function is designed to be called by internal classes of the Graphics system (most notably, TGrafStateAccessor).

Parameters:

Takes no parameters.

Return Value:

Returns a constant pointer to the concatenated graphic state.

Exceptions:

Throws no exceptions, passes all exceptions through.

Concurrency:

Not multithread safe.

Other Considerations:

None.

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