SoPathSensor Class Reference

The SoPathSensor class detects changes to paths.If you need to know when a path changes (i.e. nodes in the path has been removed, or new nodes is added), use this sensor to get a notification. More...

#include <Inventor/sensors/SoPathSensor.h>

Inheritance diagram for SoPathSensor:

Public Types
enum	TriggerFilter { PATH = 0x1, NODES = 0x2, PATH_AND_NODES = 0x3 }

Public Member Functions
	SoPathSensor (void)
	SoPathSensor (SoSensorCB *func, void *data)
virtual	~SoPathSensor (void)
void	setTriggerFilter (const TriggerFilter type)
TriggerFilter	getTriggerFilter (void) const
void	attach (SoPath *path)
void	detach (void)
SoPath *	getAttachedPath (void) const
Public Member Functions inherited from SoDataSensor
	SoDataSensor (void)
	SoDataSensor (SoSensorCB *func, void *data)
virtual	~SoDataSensor (void)
void	setDeleteCallback (SoSensorCB *function, void *data=NULL)
SoNode *	getTriggerNode (void) const
SoField *	getTriggerField (void) const
SoPath *	getTriggerPath (void) const
void	setTriggerPathFlag (SbBool flag)
SbBool	getTriggerPathFlag (void) const
SoNotRec::OperationType	getTriggerOperationType (void) const
int	getTriggerIndex (void) const
int	getTriggerFieldNumIndices (void) const
SoNode *	getTriggerGroupChild (void) const
SoNode *	getTriggerReplacedGroupChild (void) const
virtual void	trigger (void)
Public Member Functions inherited from SoDelayQueueSensor
	SoDelayQueueSensor (void)
	SoDelayQueueSensor (SoSensorCB *func, void *data)
virtual	~SoDelayQueueSensor (void)
void	setPriority (uint32_t pri)
uint32_t	getPriority (void) const
virtual void	schedule (void)
virtual void	unschedule (void)
virtual SbBool	isScheduled (void) const
virtual SbBool	isIdleOnly (void) const
Public Member Functions inherited from SoSensor
	SoSensor (void)
	SoSensor (SoSensorCB *func, void *data)
virtual	~SoSensor (void)
void	setFunction (SoSensorCB *callbackfunction)
SoSensorCBPtr	getFunction (void) const
void	setData (void *callbackdata)
void *	getData (void) const
void	setNextInQueue (SoSensor *next)
SoSensor *	getNextInQueue (void) const

Protected Member Functions
virtual void	notify (SoNotList *l)
Protected Member Functions inherited from SoDataSensor
void	invokeDeleteCallback (void)

Additional Inherited Members
Static Public Member Functions inherited from SoDelayQueueSensor
static uint32_t	getDefaultPriority (void)
Static Public Member Functions inherited from SoSensor
static void	initClass (void)
Protected Attributes inherited from SoDelayQueueSensor
SbBool	scheduled
Protected Attributes inherited from SoSensor
SoSensorCB *	func
void *	funcData

Detailed Description

The SoPathSensor class detects changes to paths.

If you need to know when a path changes (i.e. nodes in the path has been removed, or new nodes is added), use this sensor to get a notification.

You can also use this sensor to detect when some node in the path is changed.

An SoPathSensor can also act for delete-callback purposes alone and does not need a regular notification-based callback. The delete callback will be invoked for when the SoPath instance is deleted, not for anything you would be monitoring in a path.

Member Enumeration Documentation

enum SoPathSensor::TriggerFilter

Trigger filter, which decides if the sensor should trigger on path changes, changes on nodes in the path, or both.

Enumerator
PATH	Trigger on path changes only.
NODES	Trigger on node changes only. This can be nodes in the path, or nodes affecting the nodes in the path (nodes that updates the state and are left of the node in the path).
PATH_AND_NODES	Trigger on both path changes and node changes.

Constructor & Destructor Documentation

SoPathSensor::SoPathSensor

(

void

)

Default constructor. Use setFunction() to set up a callback function later.

SoPathSensor::SoPathSensor	(	SoSensorCB *	func,
		void *	data
	)

Constructor taking as parameters the sensor callback function and the userdata which will be passed the callback.

See also

setFunction(), setData()

SoPathSensor::~SoPathSensor ( void  )

virtual

Destructor.

Member Function Documentation

void SoPathSensor::setTriggerFilter

(

const TriggerFilter

filter

)

Set the TriggerFilter for this sensor.

The default is PATH_AND_NODES.

Since

Coin 2.0

SoPathSensor::TriggerFilter SoPathSensor::getTriggerFilter

(

void

)

const

Return the TriggerFilter for this sensor.

Since

Coin 2.0

void SoPathSensor::attach

(

SoPath *

path

)

Attach sensor to a path. Whenever the path changes, the sensor will be triggered and call the callback function.

When the SoPath instance is deleted, the sensor will automatically be detached.

See also

detach()

void SoPathSensor::detach

(

void

)

Detach sensor from path. As long as an SoPathSensor is detached, it will never invoke its callback function.

See also

attach()

SoPath * SoPathSensor::getAttachedPath

(

void

)

const

Returns a pointer to the path connected to the sensor.

See also

attach(), detach()

void SoPathSensor::notify ( SoNotList *  l )

protectedvirtual

Called from entity we are monitoring when it changes.

If this is an immediate sensor, the field and node (if any) causing the change will be stored and can be fetched by getTriggerField() and getTriggerNode(). If the triggerpath flag has been set, the path down to the node is also found and stored for later retrieval by getTriggerPath().

See also

setTriggerPathFlag()

Reimplemented from SoDataSensor.

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

• SoPathSensor.h
• SoPathSensor.cpp