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SoVRMLSwitch Class Reference

The SoVRMLSwitch class is a group node for traversing selected children. More...

#include <Inventor/VRMLnodes/SoVRMLSwitch.h>

Inheritance diagram for SoVRMLSwitch:
SoGroup SoNode SoFieldContainer SoBase

Public Member Functions

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...
 
 SoVRMLSwitch (void)
 
 SoVRMLSwitch (int choices)
 
virtual SbBool affectsState (void) const
 
void addChoice (SoNode *choice)
 
void insertChoice (SoNode *choice, int idx)
 
SoNodegetChoice (int idx) const
 
int findChoice (SoNode *choice) const
 
int getNumChoices (void) const
 
void removeChoice (int idx)
 
void removeChoice (SoNode *node)
 
void removeAllChoices (void)
 
void replaceChoice (int idx, SoNode *choice)
 
void replaceChoice (SoNode *old, SoNode *choice)
 
virtual void doAction (SoAction *action)
 
virtual void callback (SoCallbackAction *action)
 
virtual void GLRender (SoGLRenderAction *action)
 
virtual void pick (SoPickAction *action)
 
virtual void getBoundingBox (SoGetBoundingBoxAction *action)
 
virtual void handleEvent (SoHandleEventAction *action)
 
virtual void getMatrix (SoGetMatrixAction *action)
 
virtual void search (SoSearchAction *action)
 
virtual void write (SoWriteAction *action)
 
virtual void audioRender (SoAudioRenderAction *action)
 
void addChild (SoNode *child)
 
void insertChild (SoNode *child, int idx)
 
SoNodegetChild (int idx) const
 
int findChild (const SoNode *child) const
 
int getNumChildren (void) const
 
void removeChild (int idx)
 
void removeChild (SoNode *child)
 
void removeAllChildren (void)
 
void replaceChild (int idx, SoNode *node)
 
void replaceChild (SoNode *old, SoNode *node)
 
virtual SoChildListgetChildren (void) const
 
- Public Member Functions inherited from SoGroup
 SoGroup (void)
 
 SoGroup (int nchildren)
 
virtual void getPrimitiveCount (SoGetPrimitiveCountAction *action)
 
virtual void addWriteReference (SoOutput *out, SbBool isfromfield=FALSE)
 
- 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 void GLRenderBelowPath (SoGLRenderAction *action)
 
virtual void GLRenderInPath (SoGLRenderAction *action)
 
virtual void GLRenderOffPath (SoGLRenderAction *action)
 
virtual void rayPick (SoRayPickAction *action)
 
virtual void grabEventsSetup (void)
 
virtual void grabEventsCleanup (void)
 
virtual void startNotify (void)
 
SbUniqueId getNodeId (void) const
 
virtual void writeInstance (SoOutput *out)
 
virtual SoNodeaddToCopyDict (void) const
 
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)
 
SbBool getIsBuiltIn (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 SoType getClassTypeId (void)
 
static void initClass (void)
 
- Static Public Member Functions inherited from SoGroup
static SoType getClassTypeId (void)
 
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)
 

Public Attributes

SoMFNode choice
 
SoSFInt32 whichChoice
 

Protected Member Functions

virtual const SoFieldDatagetFieldData (void) const
 
virtual ~SoVRMLSwitch (void)
 
virtual void notify (SoNotList *list)
 
virtual SbBool readInstance (SoInput *in, unsigned short flags)
 
virtual void copyContents (const SoFieldContainer *from, SbBool copyConn)
 
- Protected Member Functions inherited from SoGroup
virtual ~SoGroup ()
 
virtual SbBool readChildren (SoInput *in)
 
virtual SoNotRec createNotRec (void)
 
void setOperation (const SoNotRec::OperationType opType=SoNotRec::UNSPECIFIED, const SoNode *cc=NULL, const SoNode *pc=NULL, const int ci=-1)
 
- 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 ()
 
virtual void destroy (void)
 
SbBool hasMultipleWriteRefs (void) const
 
SbBool writeHeader (SoOutput *out, SbBool isgroup, SbBool isengine) const
 
void writeFooter (SoOutput *out) const
 
virtual const char * getFileFormatName (void) const
 

Static Protected Member Functions

static const SoFieldData ** getFieldDataPtr (void)
 
- Static Protected Member Functions inherited from SoGroup
static const SoFieldData ** getFieldDataPtr (void)
 
- 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)
 

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 }
 
- Protected Attributes inherited from SoGroup
SoChildListchildren
 
- 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 SoVRMLSwitch class is a group node for traversing selected children.

The detailed class documentation is taken verbatim from the VRML97 standard (ISO/IEC 14772-1:1997). It is copyright The Web3D Consortium, and is used by permission of the Consortium:

Switch {
  exposedField    MFNode  choice      []
  exposedField    SFInt32 whichChoice -1    # [-1, inf)
}

The Switch grouping node traverses zero or one of the nodes specified in the choice field. 4.6.5, Grouping and children nodes (http://www.web3d.org/documents/specifications/14772/V2.0/part1/concepts.html#4.6.5), describes details on the types of nodes that are legal values for choice.

The whichChoice field specifies the index of the child to traverse, with the first child having index 0. If whichChoice is less than zero or greater than the number of nodes in the choice field, nothing is chosen. All nodes under a Switch continue to receive and send events regardless of the value of whichChoice. For example, if an active SoVRMLTimeSensor is contained within an inactive choice of an Switch, the SoVRMLTimeSensor sends events regardless of the Switch's state.

Constructor & Destructor Documentation

◆ SoVRMLSwitch() [1/2]

SoVRMLSwitch::SoVRMLSwitch ( void  )

Constructor.

◆ SoVRMLSwitch() [2/2]

SoVRMLSwitch::SoVRMLSwitch ( int  choices)

Constructor. choices is the expected number of children.

◆ ~SoVRMLSwitch()

SoVRMLSwitch::~SoVRMLSwitch ( void  )
protectedvirtual

Destructor.

Member Function Documentation

◆ getTypeId()

SoType SoVRMLSwitch::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.

Reimplemented from SoGroup.

◆ getFieldData()

const SoFieldData * SoVRMLSwitch::getFieldData ( void  ) const
protectedvirtual

Returns a pointer to the class-wide field data storage object for this instance. If no fields are present, returns NULL.

Reimplemented from SoGroup.

◆ affectsState()

SbBool SoVRMLSwitch::affectsState ( void  ) const
virtual

Returns TRUE if the node could have any effect on the state during traversal.

If it returns FALSE, no data in the traversal state will change from the pre-traversal state to the post-traversal state. The SoSeparator node will for instance return FALSE, as it pushes and pops the state before and after traversal of its children. All SoShape nodes will also return FALSE, as just pushing out geometry data to the rendering engine won't affect the actual rendering state.

The default method returns TRUE, on a "better safe than sorry" philosophy.

Reimplemented from SoNode.

◆ addChoice()

void SoVRMLSwitch::addChoice ( SoNode choiceptr)

Adds choice to the choice field.

◆ insertChoice()

void SoVRMLSwitch::insertChoice ( SoNode choiceptr,
int  idx 
)

Inserts choice at index idx.

◆ getChoice()

SoNode * SoVRMLSwitch::getChoice ( int  idx) const

Returns the choice at index idx.

◆ findChoice()

int SoVRMLSwitch::findChoice ( SoNode choiceptr) const

Finds the index for choice, or -1 if not found.

◆ getNumChoices()

int SoVRMLSwitch::getNumChoices ( void  ) const

Returns the number of choices.

◆ removeChoice() [1/2]

void SoVRMLSwitch::removeChoice ( int  idx)

Removes the choice at index idx.

◆ removeChoice() [2/2]

void SoVRMLSwitch::removeChoice ( SoNode choiceptr)

If choice is found, remove it.

◆ removeAllChoices()

void SoVRMLSwitch::removeAllChoices ( void  )

Removes all choices.

◆ replaceChoice() [1/2]

void SoVRMLSwitch::replaceChoice ( int  idx,
SoNode choiceptr 
)

Replace the choice at index idx with choice.

◆ replaceChoice() [2/2]

void SoVRMLSwitch::replaceChoice ( SoNode old,
SoNode choiceptr 
)

Find old, and replace it with choice.

◆ doAction()

void SoVRMLSwitch::doAction ( SoAction action)
virtual

This function performs the typical operation of a node for any action.

Reimplemented from SoGroup.

◆ callback()

void SoVRMLSwitch::callback ( SoCallbackAction action)
virtual

Action method for SoCallbackAction.

Simply updates the state according to how the node behaves for the render action, so the application programmer can use the SoCallbackAction for extracting information about the scene graph.

Reimplemented from SoGroup.

◆ GLRender()

void SoVRMLSwitch::GLRender ( SoGLRenderAction action)
virtual

Action method for the SoGLRenderAction.

This is called during rendering traversals. Nodes influencing the rendering state in any way or want to throw geometry primitives at OpenGL override this method.

Reimplemented from SoGroup.

◆ pick()

void SoVRMLSwitch::pick ( SoPickAction action)
virtual

Action method for SoPickAction.

Does common processing for SoPickAction action instances.

Reimplemented from SoGroup.

◆ getBoundingBox()

void SoVRMLSwitch::getBoundingBox ( SoGetBoundingBoxAction action)
virtual

Action method for the SoGetBoundingBoxAction.

Calculates bounding box and center coordinates for node and modifies the values of the action to encompass the bounding box for this node and to shift the center point for the scene more towards the one for this node.

Nodes influencing how geometry nodes calculate their bounding box also override this method to change the relevant state variables.

Reimplemented from SoGroup.

◆ handleEvent()

void SoVRMLSwitch::handleEvent ( SoHandleEventAction action)
virtual

Action method for SoHandleEventAction.

Inspects the event data from action, and processes it if it is something which this node should react to.

Nodes influencing relevant state variables for how event handling is done also override this method.

Reimplemented from SoGroup.

◆ getMatrix()

void SoVRMLSwitch::getMatrix ( SoGetMatrixAction action)
virtual

Action method for SoGetMatrixAction.

Updates action by accumulating with the transformation matrix of this node (if any).

Reimplemented from SoGroup.

◆ search()

void SoVRMLSwitch::search ( SoSearchAction action)
virtual

Action method for SoSearchAction.

Compares the search criteria from the action to see if this node is a match. Searching is done by matching up all criteria set up in the SoSearchAction – if any of the requested criteria is a miss, the search is not deemed successful for the node.

See also
SoSearchAction

Reimplemented from SoGroup.

◆ write()

void SoVRMLSwitch::write ( SoWriteAction action)
virtual

Action method for SoWriteAction.

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

Reimplemented from SoGroup.

◆ audioRender()

void SoVRMLSwitch::audioRender ( SoAudioRenderAction action)
virtual

Action method for SoAudioRenderAction.

Does common processing for SoAudioRenderAction action instances.

Reimplemented from SoGroup.

◆ addChild()

void SoVRMLSwitch::addChild ( SoNode node)
virtual

Append a child node to the list of children nodes this group node is managing.

Please note that this method is not virtual in the original SGI Inventor API.

Reimplemented from SoGroup.

◆ insertChild()

void SoVRMLSwitch::insertChild ( SoNode child,
int  newchildindex 
)
virtual

Insert a child node at position newchildindex.

newchildindex must be <= this->getNumChildren()

Please note that this method is not virtual in the original SGI Inventor API.

Reimplemented from SoGroup.

◆ getChild()

SoNode * SoVRMLSwitch::getChild ( int  index) const
virtual

Returns pointer to child node at index.

Please note that this method is not virtual in the original SGI Inventor API.

Reimplemented from SoGroup.

◆ findChild()

int SoVRMLSwitch::findChild ( const SoNode node) const
virtual

Returns index in our list of children for child node, or -1 if node is not a child of this group node.

Please note that this method is not virtual in the original SGI Inventor API.

Reimplemented from SoGroup.

◆ getNumChildren()

int SoVRMLSwitch::getNumChildren ( void  ) const
virtual

Returns number of child nodes managed by this group.

Please note that this method is not virtual in the original SGI Inventor API.

Reimplemented from SoGroup.

◆ removeChild() [1/2]

void SoVRMLSwitch::removeChild ( int  childindex)
virtual

Remove node at childindex in our list of children.

Please note that this method is not virtual in the original SGI Inventor API.

Reimplemented from SoGroup.

◆ removeChild() [2/2]

void SoVRMLSwitch::removeChild ( SoNode child)
virtual

Remove child from the set of children managed by this group node. Will decrease the reference count of child by 1.

This is a convenience method. It will simply call findChild() with child as argument, and then call removeChild(int) if the child is found.

Please note that this method is not virtual in the original SGI Inventor API.

Reimplemented from SoGroup.

◆ removeAllChildren()

void SoVRMLSwitch::removeAllChildren ( void  )
virtual

Do not manage the children anymore. Will dereference all children by 1 as they are removed.

Please note that this method is not virtual in the original SGI Inventor API.

Reimplemented from SoGroup.

◆ replaceChild() [1/2]

void SoVRMLSwitch::replaceChild ( int  index,
SoNode newchild 
)
virtual

Replace child at index with newChild.

Dereferences the child previously at index, and increases the reference count of newChild by 1.

index must be < this->getNumChildren()

Please note that this method is not virtual in the original SGI Inventor API.

Reimplemented from SoGroup.

◆ replaceChild() [2/2]

void SoVRMLSwitch::replaceChild ( SoNode oldchild,
SoNode newchild 
)
virtual

Replace oldchild with newchild.

Dereferences oldchild by 1, and increases the reference count of newchild by 1.

This is a convenience method. It will simply call findChild() with oldchild as argument, and call replaceChild(int, SoNode*) if the child is found.

Please note that this method is not virtual in the original SGI Inventor API.

Reimplemented from SoGroup.

◆ getChildren()

SoChildList * SoVRMLSwitch::getChildren ( void  ) const
virtual

Returns list of children.

Reimplemented from SoGroup.

◆ notify()

void SoVRMLSwitch::notify ( SoNotList l)
protectedvirtual

Notifies all auditors for this instance when changes are made.

Reimplemented from SoNode.

◆ readInstance()

SbBool SoVRMLSwitch::readInstance ( SoInput in,
unsigned short  flags 
)
protectedvirtual

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 SoGroup.

◆ copyContents()

void SoVRMLSwitch::copyContents ( const SoFieldContainer from,
SbBool  copyconnections 
)
protectedvirtual

Makes a deep copy of all data of from into this instance, except external scene graph references if copyconnections is FALSE.

This is the method that should be overridden by extension node / engine / dragger / whatever subclasses which need to account for internal data that are not handled automatically.

For copying nodes from application code, you should not invoke this function directly, but rather call the SoNode::copy() function:

SoNode * mynewnode = templatenode->copy();

The same also goes for engines.

Make sure that when you override the copyContents() method in your extension class that you also make it call upwards to its parent superclass in the inheritance hierarchy, as copyContents() in for instance SoNode and SoFieldContainer does important work. It should go something like this:

void
MyCoinExtensionNode::copyContents(const SoFieldContainer * from,
SbBool copyconnections)
{
// let parent superclasses do their thing (copy fields, copy
// instance name, etc.)
SoNode::copyContents(from, copyconnections);
// [..then copy internal data..]
}

Reimplemented from SoGroup.

Member Data Documentation

◆ choice

SoMFNode SoVRMLSwitch::choice

Contains the children.

◆ whichChoice

SoSFInt32 SoVRMLSwitch::whichChoice

Selected choice. Can be a positive number from 0 to <numchildren-1>, or one of the constants SO_SWITCH_NODE, SO_SWITCH_ALL or SO_SWITCH_INHERIT. Default value is SO_SWITCH_NONE.


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