The SoVRMLDragSensor class is a superclass for VRML drag sensors. More...

#include <Inventor/VRMLnodes/SoVRMLDragSensor.h>

Inheritance diagram for SoVRMLDragSensor:

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 run-time type checking and "downward" casting. More...

virtual void	handleEvent (SoHandleEventAction *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 SoNode *	copy (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	pick (SoPickAction *action)

virtual void	rayPick (SoRayPickAction *action)

virtual void	search (SoSearchAction *action)

virtual void	write (SoWriteAction *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 SoChildList *	getChildren (void) const

virtual void	writeInstance (SoOutput *out)

virtual SoNode *	addToCopyDict (void) const

virtual void	copyContents (const SoFieldContainer *from, SbBool copyconnections)

virtual SoFieldContainer *	copyThroughConnection (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 SoField *	getField (const SbName &name) const

virtual SoField *	getEventIn (const SbName &name) const

virtual SoField *	getEventOut (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 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 SoAuditorList &	getAuditors (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 SoVRMLSensor
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 SoNode *	getByName (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 SoFieldContainer *	checkCopy (const SoFieldContainer *orig)

static SoFieldContainer *	findCopy (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 SoBase *	getNamedBase (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
SoSFVec3f	trackPoint_changed

SoSFBool	autoOffset

Public Attributes inherited from SoVRMLSensor
SoSFBool	isActive

SoSFBool	enabled

Protected Member Functions
virtual const SoFieldData *	getFieldData (void) const

virtual SbBool	dragStart (void)=0

virtual void	drag (void)=0

virtual void	dragFinish (void)=0

	SoVRMLDragSensor (void)

virtual	~SoVRMLDragSensor ()

const SbVec3f &	getLocalStartingPoint (void) const

const SbMatrix &	getLocalToWorldMatrix (void) const

const SbMatrix &	getWorldToLocalMatrix (void) const

const SbViewVolume &	getViewVolume (void) const

const SbVec2f &	getNormalizedLocaterPosition (void) const

Protected Member Functions inherited from SoNode
	SoNode (void)

virtual	~SoNode ()

virtual SbBool	readInstance (SoInput *in, unsigned short flags)

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

virtual SoNotRec	createNotRec (void)

Static Protected Member Functions
static const SoFieldData **	getFieldDataPtr (void)

Static Protected Member Functions inherited from SoVRMLSensor
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 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 SoVRMLDragSensor class is a superclass for VRML drag sensors.

This class collects the two fields that are common for some of the sensor nodes, plus some common functions for these. Since this is an abstract "helper" class, it does not represent an actual node from the VRML97 specification, so don't use it as such.

For more information, a detailed discussion of drag sensors is available in section 4.6.7.4 of the VRML97 specification:

http://www.web3d.org/x3d/specifications/vrml/ISO-IEC-14772-VRML97/part1/concepts.html#4.6.7.4.

Constructor & Destructor Documentation

◆ SoVRMLDragSensor()

SoVRMLDragSensor::SoVRMLDragSensor ( void )

protected

Constructor.

◆ ~SoVRMLDragSensor()

SoVRMLDragSensor::~SoVRMLDragSensor ( )

protectedvirtual

Destructor.

Member Function Documentation

◆ getTypeId()

SoType SoVRMLDragSensor::getTypeId ( void ) const

virtual

Returns the type identification of an object derived from a class inheriting SoBase. This is used for run-time 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 pre-defined 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 toplevel superclasses for the various class groups.

Reimplemented from SoVRMLSensor.

Reimplemented in SoVRMLSphereSensor, SoVRMLCylinderSensor, and SoVRMLPlaneSensor.

◆ getFieldData()

const SoFieldData * SoVRMLDragSensor::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 SoVRMLSensor.

Reimplemented in SoVRMLSphereSensor, SoVRMLCylinderSensor, and SoVRMLPlaneSensor.

◆ handleEvent()

void SoVRMLDragSensor::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 overrides this method.

Reimplemented from SoNode.

◆ dragStart()

SbBool SoVRMLDragSensor::dragStart ( void )

protectedpure virtual

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

Called when dragger is selected (picked) by the user.

Implemented in SoVRMLCylinderSensor, SoVRMLPlaneSensor, and SoVRMLSphereSensor.

◆ drag()

void SoVRMLDragSensor::drag ( void )

protectedpure virtual

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

Called when user drags the mouse after picking the dragger.

Implemented in SoVRMLCylinderSensor, SoVRMLPlaneSensor, and SoVRMLSphereSensor.

◆ dragFinish()

void SoVRMLDragSensor::dragFinish ( void )

protectedpure virtual

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

Called when mouse button is released after picking and interacting with the dragger.

Implemented in SoVRMLCylinderSensor, SoVRMLPlaneSensor, and SoVRMLSphereSensor.

◆ getLocalStartingPoint()

const SbVec3f & SoVRMLDragSensor::getLocalStartingPoint ( void ) const

protected

Returns the interaction starting point.

◆ getLocalToWorldMatrix()

const SbMatrix & SoVRMLDragSensor::getLocalToWorldMatrix ( void ) const

protected

Returns the matrix that transforms to the world coordinate system.

◆ getWorldToLocalMatrix()

const SbMatrix & SoVRMLDragSensor::getWorldToLocalMatrix ( void ) const

protected

Returns the matrix that transforms from the world coordinate system.

◆ getViewVolume()

const SbViewVolume & SoVRMLDragSensor::getViewVolume ( void ) const

protected

Returns the current view volume.

◆ getNormalizedLocaterPosition()

const SbVec2f & SoVRMLDragSensor::getNormalizedLocaterPosition ( void ) const

protected

Returns the current normalized pointer position.

Member Data Documentation

◆ trackPoint_changed

SoSFVec3f SoVRMLDragSensor::trackPoint_changed

An event out that is generated when the trackpoint is changed.

◆ autoOffset

SoSFBool SoVRMLDragSensor::autoOffset

When TRUE, the offset field is updated when a dragging sequence is finished. Default value is TRUE.

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

SoVRMLDragSensor.h
DragSensor.cpp

Public Member Functions

Static Public Member Functions

Public Attributes

Protected Member Functions

Static Protected Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ SoVRMLDragSensor()

◆ ~SoVRMLDragSensor()

Member Function Documentation

◆ getTypeId()

◆ getFieldData()

◆ handleEvent()

◆ dragStart()

◆ drag()

◆ dragFinish()

◆ getLocalStartingPoint()

◆ getLocalToWorldMatrix()

◆ getWorldToLocalMatrix()

◆ getViewVolume()

◆ getNormalizedLocaterPosition()

Member Data Documentation

◆ trackPoint_changed

◆ autoOffset