SoProtoInstance - Online Linux Manual PageSection : 3
Updated : Mon Jan 25 2021
Source : Version 4.0.0
Note : Coin

NAMESoProtoInstance − The SoProtoInstance class handles PROTO instances​.

SYNOPSIS
#include <Inventor/misc/SoProtoInstance​.h> Inherits SoNode​.

Public Member Functionsvirtual SoType getTypeId (void) const
Returns the type identification of an object derived from a class inheriting SoBase​. This is used for run-time type checking and 'downward' casting​.
SoProtoInstance (SoProto *proto, const SoFieldData *deffielddata)
void setRootNode (SoNode *root)
SoNode * getRootNode (void)
SoProto * getProtoDefinition (void) const
SbName getProtoName (void) const
virtual void write (SoWriteAction *action)

Static Public Member Functionsstatic SoType getClassTypeId (void)
static void initClass (void)
static SoProtoInstance * findProtoInstance (const SoNode *rootnode)

Protected Member Functionsvirtual const SoFieldData * getFieldData (void) const
virtual ~SoProtoInstance ()
virtual SbBool readInstance (SoInput *in, unsigned short flags)
virtual const char * getFileFormatName (void) const

Additional Inherited Members

Detailed DescriptionThe SoProtoInstance class handles PROTO instances​. See also SoProto

Constructor & Destructor Documentation

SoProtoInstance::SoProtoInstance (SoProto * proto, const SoFieldData * deffielddata)Constructor​.

SoProtoInstance::~SoProtoInstance () [protected], [virtual]Destructor​.

Member Function Documentation

SoType SoProtoInstance::getTypeId (void) const [virtual]Returns the type identification of an object derived from a class inheriting SoBase​. This is used for run-time type checking and 'downward' casting​. Usage example: void foo(SoNode * node) { if (node->getTypeId() == SoFile::getClassTypeId()) { SoFile * filenode = (SoFile *)node; // safe downward cast, knows the type } }For application programmers wanting to extend the library with new nodes, engines, nodekits, draggers or others: this method needs to be overridden in all subclasses​. This is typically done as part of setting up the full type system for extension classes, which is usually accomplished by using the pre-defined macros available through for instance Inventor/nodes/SoSubNode​.h (SO_NODE_INIT_CLASS and SO_NODE_CONSTRUCTOR for node classes), Inventor/engines/SoSubEngine​.h (for engine classes) and so on​. For more information on writing Coin extensions, see the class documentation of the toplevel superclasses for the various class groups​. Implements SoBase​.

const SoFieldData * SoProtoInstance::getFieldData (void) const [protected], [virtual]Returns a pointer to the class-wide field data storage object for this instance​. If no fields are present, returns NULL​. Reimplemented from SoFieldContainer​.

SoProtoInstance * SoProtoInstance::findProtoInstance (const SoNode * rootnode) [static]Given root node rootnode, return the PROTO instance, or NULL if rootnode is not a PROTO instance root node​.

void SoProtoInstance::setRootNode (SoNode * root)Sets the root node for this instance​.

SoNode * SoProtoInstance::getRootNode (void)Returns the instance root node​.

SoProto * SoProtoInstance::getProtoDefinition (void) constReturns the PROTO definition for this instance​.

SbName SoProtoInstance::getProtoName (void) constReturns the PROTO defintion name​.

void SoProtoInstance::write (SoWriteAction * action) [virtual]Action method for SoWriteAction​. Writes out a node object, and any connected nodes, engines etc, if necessary​. Reimplemented from SoNode​.

SbBool SoProtoInstance::readInstance (SoInput * in, unsigned short flags) [protected], [virtual]This method is mainly intended for internal use during file import operations​. It reads a definition of an instance from the input stream in​. The input stream state points to the start of a serialized / persistant representation of an instance of this class type​. TRUE or FALSE is returned, depending on if the instantiation and configuration of the new object of this class type went ok or not​. The import process should be robust and handle corrupted input streams by returning FALSE​. flags is used internally during binary import when reading user extension nodes, group nodes or engines​. Reimplemented from SoNode​.

const char * SoProtoInstance::getFileFormatName (void) const [protected], [virtual]Returns the class name this object should be written under​. Default string returned is the name of the class from the type system​. User extensions nodes and engines override this method to return the name of the extension (instead of 'UnknownNode' or 'UnknownEngine')​. Reimplemented from SoBase​.

AuthorGenerated automatically by Doxygen for Coin from the source code​.
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Johanes Gumabo
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