Searches for nodes in a scene graph. More...
#include <Inventor/actions/SoSearchAction.h>
Public Types | |
enum | LookFor { NODE = 0x01 , TYPE = 0x02 , NAME = 0x04 } |
Enum that defines the search criterion. More... | |
enum | Interest { FIRST , LAST , ALL } |
Enum that defines which paths to return. More... | |
Public Types inherited from SoAction | |
enum | DistribMode { LOCAL_ONLY , CLUSTER_ONLY , ALL } |
This is used to define the way an action is distributed across a cluster. More... | |
enum | AppliedCode { NODE , PATH , PATH_LIST } |
This enum is used to determine what the action is being applied to. More... | |
enum | PathCode { NO_PATH , IN_PATH , BELOW_PATH , OFF_PATH } |
This enum may be used during traversal of nodes to indicate where the node is with respect to the path being traversed. More... | |
Public Member Functions | |
virtual SoType | getTypeId () const |
Returns the type identifier for this specific instance. | |
SoSearchAction () | |
Constructor. | |
virtual void | reset () |
Resets options back to default values; clears list of returned paths. | |
virtual void | clearApplyResult () |
When applied, an action may reference nodes or create objects (e.g. | |
void | setFind (int what) |
Sets what to look for; what is a bitmask of LookFor enum values. | |
int | getFind () |
Returns what to look for. | |
SoNode * | getNode () const |
Returns the node to search for. | |
void | setNode (SoNode *n) |
Sets the node to search for. | |
SoType | getType (SbBool &derivedIsOk) const |
Returns the node type to search for. | |
void | setType (SoType t, SbBool derivedIsOk=TRUE) |
Sets the node type to search for. | |
const SbName & | getName () const |
Returns the name of the node to search for. | |
void | setName (const SbName &n) |
Sets the name of the node to search for. | |
Interest | getInterest () const |
Returns which paths to return. | |
void | setInterest (Interest i) |
Sets which paths to return. | |
SbBool | isSearchingAll () const |
Returns FALSE if searching uses regular traversal, TRUE if it traverses every single node. | |
void | setSearchingAll (SbBool flag) |
Sets whether searching uses regular traversal or whether it traverses every single node. | |
SoPath * | getPath () const |
Returns resulting path, or NULL if no path was found. | |
SoPathList & | getPaths () |
Returns resulting path list. | |
Public Member Functions inherited from SoAction | |
virtual | ~SoAction () |
Destructor. | |
virtual void | apply (SoNode *node) |
Initiates an action on the graph defined by a node. | |
virtual void | apply (SoPath *path) |
Initiates an action on the graph defined by a path. | |
virtual void | apply (const SoPathList &pathList, SbBool obeysRules=FALSE) |
Initiates an action on the graph defined by a list of paths. | |
virtual void | invalidateState () |
Invalidates the current traversal state in the action, forcing it to be recreated when the action is next applied. | |
void | stopActionInBranch () |
This function stops the action in the current Scene Graph branch. | |
SbBool | getContinueActionInBranchFlag () const |
This function indicates if the action must stop in the current branch. | |
void | resetContinueActionInBranchFlag () |
This function resets the continue action flag. | |
void | useAlternateRep (const SbBool enable) |
Tell the action to use alternate representations during traversal when available. | |
SbBool | isUsingAlternateRep () const |
Returns TRUE if current action is using alternate representations. | |
void | setSceneManager (SoSceneManager *mgr) |
Set the scene manager associated with this action (if any ). | |
SoSceneManager * | getSceneManager () const |
Return the SoSceneManager associated with this action. | |
virtual void | forwardTraversal (SoNode *node) |
Traverse a node that is not part of the current scenegraph. | |
virtual void | forwardTraversal (SoPath *path) |
Traverse a path that is not part of the current scenegraph. | |
DistribMode | getDistribMode () const |
Returns the distribution mode of this action across a cluster (ScaleViz-Cluster only). | |
AppliedCode | getWhatAppliedTo () const |
Returns code indicating what action is being applied to. | |
SoNode * | getNodeAppliedTo () const |
Returns the node the action is being applied to. | |
SoPath * | getPathAppliedTo () const |
Returns the path the action is being applied to. | |
const SoPathList * | getPathListAppliedTo () const |
Returns the path list the action is being applied to. | |
const SoPathList * | getOriginalPathListAppliedTo () const |
Returns the original path list the action is being applied to. | |
SbBool | isLastPathListAppliedTo () const |
Returns TRUE if the current list is the last one from the original. | |
PathCode | getPathCode (int &numIndices, const int *&indices) |
Returns path code based on where current node (the node at the end of the current path) lies with respect to the path(s) the action is being applied to. | |
PathCode | getPathCodeMI (int &numIndices, const int *&indices, const int *&instanceIndices) |
Extender API: available to programmers who wish to extend the toolkit | |
void | traverse (SoNode *node) |
Does traversal of a graph rooted by a node. | |
SbBool | hasTerminated () const |
Returns TRUE if the traversal has reached a termination condition. | |
const SoPath * | getCurPath () |
Returns the path accumulated during traversal, i.e., the chain of nodes from the root of the traversed graph to the current node being traversed. | |
SoState * | getState () const |
Gets the state from the action. | |
virtual void | setUpState () |
Creates state if it is NULL or it is no longer valid because new elements have been enabled since it was created. | |
void | setPipeId (int id) |
Sets pipe identifier in the range [1..N] associated to this render action while running a ScaleViz Multipipe configuration. | |
int | getPipeId () const |
Gets pipe identifier in the range [1..N] associated to this render action while running a ScaleViz Multipipe configuration. | |
bool | isBeingApplied () |
Returns TRUE if this action is currently being applied. | |
virtual bool | preDelayedTraversal () |
Method called by SoMultiPassManager before delayed pass traversals. | |
virtual void | postDelayedTraversal () |
Method called by SoMultiPassManager after delayed pass traversals. | |
Public Member Functions inherited from SoTypedObject | |
SbBool | isOfType (const SoType &type) const |
Returns TRUE if this object is of the type specified in type or is derived from that type. | |
template<typename TypedObjectClass > | |
SbBool | isOfType () const |
Returns TRUE if this object is of the type of class TypedObjectClass or is derived from that class. | |
Static Public Member Functions | |
static SoType | getClassTypeId () |
Returns the type identifier for this class. | |
Static Public Member Functions inherited from SoAction | |
static SoType | getClassTypeId () |
Returns the type identifier for this class. | |
static void | nullAction (SoAction *, SoNode *) |
Null action method that can be stored in lookup table when desired. | |
Static Public Member Functions inherited from SoTypedObject | |
static SoType | getClassTypeId () |
Returns the type identifier for this class. | |
Searches for nodes in a scene graph.
This class is used to search scene graphs for specific nodes, nodes of a specific type, nodes with a specific name, or any combination of these. It can search for just the first or last node satisfying the criteria or for all such nodes. The action returns a path (SoPath) to each node found. The searched for node is the "tail" of each path.
Note that the search criteria are cumulative. For example, if you do a search by name (setName()), then reuse the same SoSearchAction object to do a search by type (setType()), the action will actually search for a node that satisfies both criteria. To avoid this problem, call reset() before reusing the action object.
By default SoSearchAction only searches nodes that are actually traversed. For example it would not search all the children of an SoSwitch node unless the whichChild field is set to SO_SWITCH_ALL. To search all nodes in the scene graph (except nodekits - see next paragraph) call setSearchingAll(TRUE).
Nodekits:
Hidden references:
Efficiency:
Example 2: Find all the SoFont nodes in the scene graph:
SoPath, SoBaseKit, SoSearchPathAction, SoSearchStepAction
Definition at line 241 of file SoSearchAction.h.
Enum that defines which paths to return.
Enumerator | |
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FIRST | Return only the first path found (default) |
LAST | Return only the last path found. |
ALL | Return all paths found. |
Definition at line 264 of file SoSearchAction.h.
Enum that defines the search criterion.
Enumerator | |
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NODE | Search for a particular node instance. |
TYPE | Search for a particular type of node. |
NAME | Search for a node with a particular name. |
Definition at line 248 of file SoSearchAction.h.
SoSearchAction::SoSearchAction | ( | ) |
Constructor.
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virtual |
When applied, an action may reference nodes or create objects (e.g.
SoPath) that reference nodes. This is especially true for SoSearchAction and SoRayPickAction. These references will prevent the nodes from being destroyed and so may appear to be a "memory leak".
All references are cleared when the action is destroyed or re-applied. However it may be useful to clear them explicitly to remove references to nodes.
See also reset()
Reimplemented from SoAction.
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static |
Returns the type identifier for this class.
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inline |
Returns what to look for.
Definition at line 313 of file SoSearchAction.h.
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inline |
Returns which paths to return.
Definition at line 354 of file SoSearchAction.h.
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inline |
Returns the name of the node to search for.
Definition at line 344 of file SoSearchAction.h.
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inline |
Returns the node to search for.
Definition at line 318 of file SoSearchAction.h.
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Returns resulting path, or NULL if no path was found.
This should be used if the interest is FIRST or LAST.
Definition at line 380 of file SoSearchAction.h.
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Returns resulting path list.
This should be used if the interest is ALL.
Definition at line 385 of file SoSearchAction.h.
Returns the node type to search for.
Definition at line 331 of file SoSearchAction.h.
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Returns the type identifier for this specific instance.
Implements SoTypedObject.
Reimplemented in SoSearchPathAction, and SoSearchStepAction.
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Returns FALSE if searching uses regular traversal, TRUE if it traverses every single node.
Default is FALSE.
Definition at line 365 of file SoSearchAction.h.
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Resets options back to default values; clears list of returned paths.
This can be used to apply the action again with a different set of search criteria. See also clearApplyResult().
Reimplemented in SoSearchPathAction.
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inline |
Sets what to look for; what is a bitmask of LookFor enum values.
Default is no flags at all. Note that setting a node, type, and/or name to search for activates the relevant flag, so you may never need to call this method directly.
Definition at line 308 of file SoSearchAction.h.
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inline |
void SoSearchAction::setName | ( | const SbName & | n | ) |
Sets the name of the node to search for.
void SoSearchAction::setNode | ( | SoNode * | n | ) |
Sets the node to search for.
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inline |
Sets whether searching uses regular traversal or whether it traverses every single node.
For example, if this flag is FALSE, an SoSwitch node will traverse only the child or children it would normally traverse for an action. If the flag is TRUE, the switch would always traverse all of its children. The default is FALSE.
Definition at line 374 of file SoSearchAction.h.
Sets the node type to search for.
If derivedIsOk is TRUE, a node that is of a type that is derived from t will pass this search criterion.