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SoProto Class Reference

The SoProto class handles PROTO definitions. More...

#include <Inventor/misc/SoProto.h>

Inheritance diagram for SoProto:
SoNode SoFieldContainer SoBase

Public Member Functions

 SoProto (const SbBool externproto=FALSE)
 
virtual SoType getTypeId (void) const
 Returns the type identification of an object derived from a class inheriting SoBase. This is used for runtime type checking and "downward" casting. More...
 
SoProtoInstancecreateProtoInstance (void)
 
void addISReference (SoNode *container, const SbName &fieldname, const SbName &interfacename)
 
SbName findISReference (const SoFieldContainer *container, const SbName &fieldname)
 
void addReference (const SbName &name, SoBase *base)
 
void removeReference (const SbName &name)
 
SoBasefindReference (const SbName &name) const
 
void addRoute (const SbName &fromnode, const SbName &fromfield, const SbName &tonode, const SbName &tofield)
 
SbName getProtoName (void) const
 
virtual SbBool readInstance (SoInput *input, unsigned short flags)
 
virtual void write (SoWriteAction *action)
 
- Public Member Functions inherited from SoNode
void setOverride (const SbBool state)
 
SbBool isOverride (void) const
 
void setNodeType (const NodeType type)
 
NodeType getNodeType (void) const
 
virtual SoNodecopy (SbBool copyconnections=FALSE) const
 
virtual SbBool affectsState (void) const
 
virtual void doAction (SoAction *action)
 
virtual void GLRender (SoGLRenderAction *action)
 
virtual void GLRenderBelowPath (SoGLRenderAction *action)
 
virtual void GLRenderInPath (SoGLRenderAction *action)
 
virtual void GLRenderOffPath (SoGLRenderAction *action)
 
virtual void callback (SoCallbackAction *action)
 
virtual void getBoundingBox (SoGetBoundingBoxAction *action)
 
virtual void getMatrix (SoGetMatrixAction *action)
 
virtual void handleEvent (SoHandleEventAction *action)
 
virtual void pick (SoPickAction *action)
 
virtual void rayPick (SoRayPickAction *action)
 
virtual void search (SoSearchAction *action)
 
virtual void audioRender (SoAudioRenderAction *action)
 
virtual void getPrimitiveCount (SoGetPrimitiveCountAction *action)
 
virtual void grabEventsSetup (void)
 
virtual void grabEventsCleanup (void)
 
virtual void startNotify (void)
 
virtual void notify (SoNotList *l)
 
SbUniqueId getNodeId (void) const
 
virtual SoChildListgetChildren (void) const
 
virtual void writeInstance (SoOutput *out)
 
virtual SoNodeaddToCopyDict (void) const
 
virtual void copyContents (const SoFieldContainer *from, SbBool copyconnections)
 
virtual SoFieldContainercopyThroughConnection (void) const
 
- Public Member Functions inherited from SoFieldContainer
void setToDefaults (void)
 
SbBool hasDefaultValues (void) const
 
SbBool fieldsAreEqual (const SoFieldContainer *container) const
 
void copyFieldValues (const SoFieldContainer *container, SbBool copyconnections=FALSE)
 
SbBool set (const char *const fielddata)
 
void get (SbString &fielddata)
 
virtual int getFields (SoFieldList &l) const
 
virtual int getAllFields (SoFieldList &l) const
 
virtual SoFieldgetField (const SbName &name) const
 
virtual SoFieldgetEventIn (const SbName &name) const
 
virtual SoFieldgetEventOut (const SbName &name) const
 
SbBool getFieldName (const SoField *const field, SbName &name) const
 
SbBool enableNotify (const SbBool flag)
 
SbBool isNotifyEnabled (void) const
 
SbBool set (const char *fielddata, SoInput *input)
 
void get (SbString &fielddata, SoOutput *out)
 
virtual SbBool validateNewFieldValue (SoField *field, void *newval)
 
virtual void addWriteReference (SoOutput *out, SbBool isfromfield=FALSE)
 
SbBool getIsBuiltIn (void) const
 
virtual const SoFieldDatagetFieldData (void) const
 
virtual void getFieldsMemorySize (size_t &managed, size_t &unmanaged) const
 
void setUserData (void *userdata) const
 
void * getUserData (void) const
 
- Public Member Functions inherited from SoBase
void ref (void) const
 
void unref (void) const
 
void unrefNoDelete (void) const
 
int32_t getRefCount (void) const
 
void touch (void)
 
SbBool isOfType (SoType type) const
 Returns TRUE if the type of this object is either of the same type or inherited from type. More...
 
virtual SbName getName (void) const
 
virtual void setName (const SbName &newname)
 
void addAuditor (void *const auditor, const SoNotRec::Type type)
 
void removeAuditor (void *const auditor, const SoNotRec::Type type)
 
const SoAuditorListgetAuditors (void) const
 
SbBool shouldWrite (void)
 
void assertAlive (void) const
 

Static Public Member Functions

static void setFetchExternProtoCallback (SoFetchExternProtoCB *cb, void *closure)
 
static SoType getClassTypeId (void)
 
static SoProtofindProto (const SbName &name)
 
static void initClass (void)
 
- Static Public Member Functions inherited from SoNode
static uint32_t getCompatibilityTypes (const SoType &nodetype)
 
static SoType getClassTypeId (void)
 
static SoNodegetByName (const SbName &name)
 
static int getByName (const SbName &name, SoNodeList &l)
 
static void initClass (void)
 
static void initClasses (void)
 
static SbUniqueId getNextNodeId (void)
 
static int getActionMethodIndex (const SoType type)
 
static void getBoundingBoxS (SoAction *action, SoNode *node)
 
static void GLRenderS (SoAction *action, SoNode *node)
 
static void callbackS (SoAction *action, SoNode *node)
 
static void getMatrixS (SoAction *action, SoNode *node)
 
static void handleEventS (SoAction *action, SoNode *node)
 
static void pickS (SoAction *action, SoNode *node)
 
static void rayPickS (SoAction *action, SoNode *node)
 
static void searchS (SoAction *action, SoNode *node)
 
static void writeS (SoAction *action, SoNode *node)
 
static void audioRenderS (SoAction *action, SoNode *node)
 
static void getPrimitiveCountS (SoAction *action, SoNode *node)
 
- Static Public Member Functions inherited from SoFieldContainer
static void initClass (void)
 
static SoType getClassTypeId (void)
 
static void cleanupClass (void)
 
static void initCopyDict (void)
 
static void addCopy (const SoFieldContainer *orig, const SoFieldContainer *copy)
 
static SoFieldContainercheckCopy (const SoFieldContainer *orig)
 
static SoFieldContainerfindCopy (const SoFieldContainer *orig, const SbBool copyconnections)
 
static void copyDone (void)
 
- Static Public Member Functions inherited from SoBase
static void initClass (void)
 Sets up initialization for data common to all instances of this class, like submitting necessary information to the Coin type system.
 
static SoType getClassTypeId (void)
 This static method returns the SoType object associated with objects of this class.
 
static void addName (SoBase *const base, const char *const name)
 
static void removeName (SoBase *const base, const char *const name)
 
static void incrementCurrentWriteCounter (void)
 
static void decrementCurrentWriteCounter (void)
 
static SoBasegetNamedBase (const SbName &name, SoType type)
 
static int getNamedBases (const SbName &name, SoBaseList &baselist, SoType type)
 
static SbBool read (SoInput *input, SoBase *&base, SoType expectedtype)
 
static void setInstancePrefix (const SbString &c)
 
static void setTraceRefs (SbBool trace)
 
static SbBool getTraceRefs (void)
 
static SbBool connectRoute (SoInput *input, const SbName &fromnodename, const SbName &fromfieldname, const SbName &tonodename, const SbName &tofieldname)
 
static SbBool readRoute (SoInput *input)
 

Protected Member Functions

virtual ~SoProto ()
 
virtual void destroy (void)
 
- Protected Member Functions inherited from SoNode
 SoNode (void)
 
virtual ~SoNode ()
 
- Protected Member Functions inherited from SoFieldContainer
 SoFieldContainer (void)
 
virtual ~SoFieldContainer ()
 
- Protected Member Functions inherited from SoBase
 SoBase (void)
 
virtual ~SoBase ()
 
SbBool hasMultipleWriteRefs (void) const
 
SbBool writeHeader (SoOutput *out, SbBool isgroup, SbBool isengine) const
 
void writeFooter (SoOutput *out) const
 
virtual const char * getFileFormatName (void) const
 
virtual SoNotRec createNotRec (void)
 

Additional Inherited Members

- Public Types inherited from SoNode
enum  NodeType {
  INVENTOR = 0x0000, VRML1 = 0x0001, VRML2 = 0x0002, INVENTOR_1 = 0x0004,
  INVENTOR_2_0 = 0x0008, INVENTOR_2_1 = 0x0010, INVENTOR_2_5 = 0x0020, INVENTOR_2_6 = 0x0040,
  COIN_1_0 = 0x0080, COIN_2_0 = 0x0100, EXTENSION = 0x0200, COIN_2_2 = 0x0400,
  COIN_2_3 = 0x0800, COIN_2_4 = 0x1000, INVENTOR_5_0 = 0x2000, COIN_2_5 = 0x4000,
  COIN_3_0 = 0x8000, INVENTOR_6_0 = 0x10000, COIN_4_0 = 0x20000
}
 
- Protected Types inherited from SoBase
enum  BaseFlags { IS_ENGINE = 0x01, IS_GROUP = 0x02 }
 
- Static Protected Member Functions inherited from SoNode
static const SoFieldData ** getFieldDataPtr (void)
 
static void setNextActionMethodIndex (int index)
 
static int getNextActionMethodIndex (void)
 
static void incNextActionMethodIndex (void)
 
static void setCompatibilityTypes (const SoType &nodetype, const uint32_t bitmask)
 
- Static Protected Member Functions inherited from SoBase
static uint32_t getCurrentWriteCounter (void)
 
static void staticDataLock (void)
 
static void staticDataUnlock (void)
 
- Protected Attributes inherited from SoNode
SbUniqueId uniqueId
 
- Protected Attributes inherited from SoFieldContainer
SbBool isBuiltIn
 
- Static Protected Attributes inherited from SoNode
static SbUniqueId nextUniqueId = 1
 
static int nextActionMethodIndex = 0
 

Detailed Description

The SoProto class handles PROTO definitions.

SoProto and SoProtoInstance are mostly internal classes. They're designed to read and handle VRML97 PROTOs. However, it's possible to define your PROTOs in C++. You must define your PROTO in a char array, and read that char array using SoInput::setBuffer() and SoDB::readAllVRML(). Example:

char myproto[] =
"#VRML V2.0 utf8\n"
"PROTO ColorCube [\n"
" field SFColor color 1 1 1\n"
" field SFVec3f size 1 1 1\n"
"]\n"
"{\n"
" Shape {\n"
" appearance Appearance {\n"
" material Material {\n"
" diffuseColor IS color\n"
" }\n"
" }\n"
" geometry Box { size IS size }\n"
" }\n"
"}\n"
"ColorCube { color 1 0 0 size 2 1 1 }\n";
in.setBuffer(myproto, strlen(myproto));
SoVRMLGroup * protoroot = SoDB::readAllVRML(&in);

Now you can create new instances of the ColorCube PROTO using SoProto::findProto() and SoProto::createProtoInstance(). If you want to insert PROTO instances into your scene graph, you should insert the node returned from SoProtoInstance::getRootNode().

See http://www.web3d.org/documents/specifications/14772/V2.0/part1/concepts.html#4.8 for more information about PROTOs in VRML97.

Constructor & Destructor Documentation

◆ SoProto()

SoProto::SoProto ( const SbBool  externproto = FALSE)

Constructor.

◆ ~SoProto()

SoProto::~SoProto ( )
protectedvirtual

Destructor.

Member Function Documentation

◆ getTypeId()

SoType SoProto::getTypeId ( void  ) const
virtual

Returns the type identification of an object derived from a class inheriting SoBase. This is used for runtime 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 predefined 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 top level superclasses for the various class groups.

Implements SoBase.

◆ findProto()

SoProto * SoProto::findProto ( const SbName name)
static

Returns the PROTO definition named name or NULL if not found.

◆ createProtoInstance()

SoProtoInstance * SoProto::createProtoInstance ( void  )

Creates an instance of the PROTO.

◆ addISReference()

void SoProto::addISReference ( SoNode container,
const SbName fieldname,
const SbName interfacename 
)

Adds an IS reference for this PROTO definition.

◆ findISReference()

SbName SoProto::findISReference ( const SoFieldContainer container,
const SbName fieldname 
)

If container is a PROTO definition node with an IS interface field named fieldname, return the interface name, otherwise return an empty SbName.

◆ addReference()

void SoProto::addReference ( const SbName name,
SoBase base 
)

Adds a reference for this PROTO definition.

◆ removeReference()

void SoProto::removeReference ( const SbName name)

Removes a reference for this PROTO definition.

◆ findReference()

SoBase * SoProto::findReference ( const SbName name) const

Finds a reference for this PROTO definition.

◆ addRoute()

void SoProto::addRoute ( const SbName fromnode,
const SbName fromfield,
const SbName tonode,
const SbName tofield 
)

Adds a ROUTE for this PROTO definition.

◆ getProtoName()

SbName SoProto::getProtoName ( void  ) const

Returns the PROTO name.

◆ readInstance()

SbBool SoProto::readInstance ( SoInput in,
unsigned short  flags 
)
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 / persistent 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.

◆ write()

void SoProto::write ( SoWriteAction action)
virtual

Action method for SoWriteAction.

Writes out a node object, and any connected nodes, engines etc, if necessary.

Reimplemented from SoNode.

◆ destroy()

void SoProto::destroy ( void  )
protectedvirtual

Cleans up all hanging references to and from this instance, and then commits suicide.

Called automatically when the reference count goes to zero.

Reimplemented from SoBase.


The documentation for this class was generated from the following files: