SoSearchAction.3coin4 - Man Page

enum LookFor { NODE = 1, TYPE = 2, NAME = 4 }
enum Interest { FIRST, LAST, ALL }

Public Types inherited from SoAction
enum AppliedCode { NODE = 0, PATH = 1, PATH_LIST = 2 }
enum PathCode { NO_PATH = 0, IN_PATH = 1, BELOW_PATH = 2, OFF_PATH = 3 }

virtual SoType getTypeId (void) const
SoSearchAction (void)
virtual ~SoSearchAction (void)
void setNode (SoNode *const node)
SoNode * getNode (void) const
void setType (const SoType type, const SbBool chkderived=TRUE)
SoType getType (SbBool &chkderived) const
void setName (const SbName name)
SbName getName (void) const
void setFind (const int what)
int getFind (void) const
void setInterest (const Interest interest)
Interest getInterest (void) const
void setSearchingAll (const SbBool searchall)
SbBool isSearchingAll (void) const
SoPath * getPath (void) const
SoPathList & getPaths (void)
void reset (void)
void setFound (void)
SbBool isFound (void) const
void addPath (SoPath *const path)

Public Member Functions inherited from SoAction
virtual ~SoAction (void)
virtual SbBool isOfType (SoType type) const
virtual void apply (SoNode *root)
virtual void apply (SoPath *path)
virtual void apply (const SoPathList &pathlist, SbBool obeysrules=FALSE)
void apply (SoAction *beingApplied)
virtual void invalidateState (void)
AppliedCode getWhatAppliedTo (void) const
SoNode * getNodeAppliedTo (void) const
SoPath * getPathAppliedTo (void) const
const SoPathList * getPathListAppliedTo (void) const
const SoPathList * getOriginalPathListAppliedTo (void) const
SbBool isLastPathListAppliedTo (void) const
PathCode getPathCode (int &numindices, const int *&indices)
void traverse (SoNode *const node)
SbBool hasTerminated (void) const
const SoPath * getCurPath (void)
SoState * getState (void) const
PathCode getCurPathCode (void) const
virtual SoNode * getCurPathTail (void)
void usePathCode (int &numindices, const int *&indices)
void pushCurPath (const int childindex, SoNode *node=NULL)
void popCurPath (const PathCode prevpathcode)
void pushCurPath (void)
void popPushCurPath (const int childindex, SoNode *node=NULL)
void popCurPath (void)
void switchToPathTraversal (SoPath *path)
void switchToNodeTraversal (SoNode *node)

static SoType getClassTypeId (void)
static void addMethod (const SoType type, SoActionMethod method)
static void enableElement (const SoType type, const int stackindex)
static void initClass (void)

Static Public Member Functions inherited from SoAction
static void initClass (void)
static void initClasses (void)
static SoType getClassTypeId (void)
static void nullAction (SoAction *action, SoNode *node)

static SbBool duringSearchAll = FALSE

virtual const SoEnabledElementsList & getEnabledElements (void) const
virtual void beginTraversal (SoNode *node)

Protected Member Functions inherited from SoAction
SoAction (void)
virtual void endTraversal (SoNode *node)
void setTerminated (const SbBool flag)
virtual SbBool shouldCompactPathList (void) const

static SoEnabledElementsList * getClassEnabledElements (void)
static SoActionMethodList * getClassActionMethods (void)

Static Protected Member Functions inherited from SoAction
static SoEnabledElementsList * getClassEnabledElements (void)
static SoActionMethodList * getClassActionMethods (void)

Protected Attributes inherited from SoAction

SoState * state
SoActionMethodList * traversalMethods

Specify the search criterion. This can be a bitwise combination of the available values.

Enumerator

NODE

Search for a node by pointer.

TYPE

Search for a node by type.

NAME

Search for a node by name.

Values used when specifying what node(s) we are interested in: the first one found, the last one or all of them.

Enumerator

FIRST

Return the path to the first node found.

LAST

Return the path to the last node found.

ALL

Return paths to all nodes found.

Initializes internal settings with default values. With the default settings, the SoSearchAction will ignore all nodes.

Destructor.

Returns the type identification of an object derived from a class inheriting SoAction. This is used for runtime type checking and 'downward' casting.

Implements SoAction.

This static method returns the SoType object associated with objects of this class.

This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.

This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.

Returns list of enabled elements.

Reimplemented from SoAction.

Returns list of enabled elements for this class. The enabledElements and methods variables are protected in the original OIV API. This is not such a good idea, since exposed static class member variables is a major grievance with regard to Win32 DLLs. This function is an extension for Coin, and it is not available in the original SGI Open Inventor v2.1 API.

Returns list of action methods for this class. The enabledElements and methods variables are protected in the original OIV API. This is not such a good idea, since exposed static class member variables is a major grievance with regard to Win32 DLLs. This function is an extension for Coin, and it is not available in the original SGI Open Inventor v2.1 API.

Initializes the runtime type system for this class, and sets up the enabled elements and action method list.  

Sets the node pointer to search for.

The action will be configured to set the search 'interest' to LookFor NODE, so there is no need to call SoSearchAction::setFind().

Returns the node the SoSearchAction instance is configured to search for.

Note that this method does not return what was found when you applied the action - it only returns what was specifically set by the user with setNode(). What the action found is returned by getPath() and getPaths().

Configures the SoSearchAction instance to search for nodes of the given type, and nodes of classes derived from the given type if chkderived is TRUE.

The action will be configured to set the search 'interest' to LookFor TYPE, so there is no need to call SoSearchAction::setFind().

Returns the node type which is searched for, and whether derived classes of that type also returns a match.

Configures the SoSearchAction instance to search for nodes with the given name.

The action will be configured to set the search 'interest' to LookFor NAME, so there is no need to call SoSearchAction::setFind().

See also

SoNode::getByName()

Returns the name the SoSearchAction instance is configured to search for.

Configures what to search for in the scene graph. what is a bitmask of LookFor flags.

Default find configuration is to ignore all nodes, but the setFind() configuration is updated automatically when any one of SoSearchAction::setNode(), SoSearchAction::setType() or SoSearchAction::setName() is called.

Returns the search configuration of the action instance.

Configures whether only the first, the last, or all the searching matches are of interest. Default configuration is FIRST.

Returns whether only the first, the last, or all the searching matches will be saved.

Specifies whether normal graph traversal should be done (searchall is FALSE, which is the default setting), or if every single node should be searched (searchall is TRUE).

If the searchall flag is TRUE, even nodes considered 'hidden' by other actions are searched (like for instance the disabled children of SoSwitch nodes).

SoBaseKit::setSearchingChildren() must be used to search for nodes under node kits.

Returns the traversal method configuration of the action.

Returns the path to the node of interest that matched the search criterions. If no match was found, NULL is returned.

Note that if ALL matches are of interest, the result of a search action must be fetched through SoSearchAction::getPaths().

There is one frequently asked question about the paths that are returned from either this method or the getPaths() method below: 'why am I not getting the complete path as expected?'

Well, then you probably have to cast the path to a SoFullPath, since certain nodes (nodekits, many VRML97 nodes) have hidden children. SoPath::getTail() will return the first node that has hidden children, or the tail if none of the nodes have hidden children. SoFullPath::getTail() will always return the actual tail. Just do like this:

SoFullPath * path = (SoFullPath *) searchaction->getPath();
SoVRMLCoordinate * vrmlcord = (SoVRMLCoordinate *) path->getTail();

Returns a path list of all nodes that matched the search criterions.

Note that if interest were only FIRST or LAST, SoSearchAction::getPath() should be used instead of this method.

See also

getPath()

Resets all the SoSearchAction internals back to their default values.

This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.

Marks the SoSearchAction instance as terminated.

This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.

Returns whether the search action was terminated.

Note that this value does not reflect whether the node(s) that was searched for was found or not. Use the result of getPath() / getPaths() if that is what you really are looking for.

This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.

Sets the path, or adds the path to the path list, depending on the interest configuration. The path is not copied, so it cannot be modified after being added without side effects.

This virtual method is called from SoAction::apply(), and is the entry point for the actual scene graph traversal.

It can be overridden to initialize the action at traversal start, for specific initializations in the action subclasses inheriting SoAction.

Default method just calls traverse(), which any overridden implementation of the method must do too (or call SoAction::beginTraversal()) to trigger the scene graph traversal.

Reimplemented from SoAction.

Obsoleted global flag, only present for compatibility reasons with old SGI / TGS Inventor application code.

It's set to TRUE when an SoSearchAction traversal with SoSearchAction::isSearchingAll() equal to TRUE is started, and is reset to FALSE again after traversal has finished.

(The flag is used by SGI / TGS Inventor in SoSwitch::affectsState() to know when SoSwitch::whichChild should behave as SoSwitch::SO_SWITCH_ALL. We have a better solution for this problem in Coin.)