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SoEngineOutput Class Reference

The SoEngineOutput class is the output slots in SoEngine instances. More...

#include <Inventor/engines/SoEngine.h>

List of all members.

Public Methods

 SoEngineOutput (void)
virtual ~SoEngineOutput ()
SoType getConnectionType (void) const
int getForwardConnections (SoFieldList &fl) const
void enable (const SbBool flag)
SbBool isEnabled (void) const
SoEnginegetContainer (void) const
void setContainer (SoEngine *engine)
void addConnection (SoField *f)
void removeConnection (SoField *f)
int getNumConnections (void) const
SoFieldoperator[] (int i) const
void prepareToWrite (void) const
void doneWriting (void) const
void touchSlaves (SoNotList *nl, SbBool donotify)


Detailed Description

The SoEngineOutput class is the output slots in SoEngine instances.

SoEngineOutput has methods for convenient handling of the connections made from SoEngine objects to SoField objects.

See also:
SoEngine, SoField


Constructor & Destructor Documentation

SoEngineOutput::SoEngineOutput void
 

Constructor. The SoEngineOutput will initially not be contained within an SoEngine nor will it have any slave fields attached.

See also:
setContainer()

SoEngineOutput::~SoEngineOutput [virtual]
 

Destructor.


Member Function Documentation

SoType SoEngineOutput::getConnectionType void const
 

Returns the type of the engine output.

int SoEngineOutput::getForwardConnections SoFieldList & fl const
 

Adds all slave fields connected to this output to fl. Returns the number of slaves.

See also:
addConnection() , removeConnection()

void SoEngineOutput::enable const SbBool flag
 

Sets the enabled flag. If output is disabled, the fields connected to this output will not be changed when the engine is evaluated.

See also:
isEnabled().

SbBool SoEngineOutput::isEnabled void const
 

Returns status of the enabled flag.

See also:
enable().

SoEngine * SoEngineOutput::getContainer void const
 

Returns the engine containing this output.

See also:
setContainer()

void SoEngineOutput::setContainer SoEngine * engine
 

Sets the engine containing this output.

See also:
getContainer()

void SoEngineOutput::addConnection SoField * f
 

Adds f to the list of connections from this output.

Adds 1 to the reference count of the container engine.

See also:
removeConnection(), getForwardConnections()

void SoEngineOutput::removeConnection SoField * f
 

Removes f from the list of connections from this output.

Subtracts 1 from the reference count of the container engine. If the reference count reaches zero (which will happen if this was the last connection and the application programmer did not explicitly ref the engine), the container engine will be deallocated.

See also:
addConnection(), getForwardConnections()

int SoEngineOutput::getNumConnections void const
 

Returns the number of fields in the list of connections.

See also:
operator[], addConnection()

SoField * SoEngineOutput::operator[] int i const
 

Returns the field at index i in the list of connections.

See also:
getNumConnections()

void SoEngineOutput::prepareToWrite void const
 

Disables notifications on fields connected to this output. This is done before the engine is evaulated, since the fields we are going to write into have already been notified.

See also:
doneWriting()

void SoEngineOutput::doneWriting void const
 

Restores the notification flags on fields connected to this output after evaluating.

See also:
prepareToWrite()

void SoEngineOutput::touchSlaves SoNotList * nl,
SbBool donotify
 

Notify the fields attached to this engine output that the output value has changed.

If donotify is TRUE, propagate the notification to the fields. Otherwise just mark the fields "dirty" for re-evalution.

Note that this method is not part of the original Open Inventor API.


The documentation for this class was generated from the following files:
Generated at Tue Mar 5 03:31:24 2002 for Coin by doxygen1.2.9 written by Dimitri van Heesch, © 1997-2001