SoInvisibleLineDragger Class Reference

A line dragger with a shape given from outside. The shape is set by: More...

List of all members.

Public Member Functions
	SoInvisibleLineDragger ()
void	setDirection (const SbVec3f &)
Static Public Member Functions
static void	initClass ()
static const char *	sKeyShape ()
Public Attributes
SbVec3f	translation
SoCallbackList	needsDirection
SbVec3f	startPos
Protected Member Functions
	~SoInvisibleLineDragger ()
void	dragStart (void)
void	drag (void)
Private Types
typedef SoDragger	inherited
Private Member Functions
	SO_KIT_HEADER (SoInvisibleLineDragger)
	SO_KIT_CATALOG_ENTRY_HEADER (shape)
Static Private Member Functions
static void	startCB (void *f, SoDragger *d)
static void	motionCB (void *f, SoDragger *d)
Private Attributes
SbLineProjector *	lineProj_

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Detailed Description

A line dragger with a shape given from outside. The shape is set by:

    SoInvisibleLineDragger* dragger = new SoInvisibleLineDragger;
    dragger->ref();
    dragger->setPart( SoInvisibleLineDragger::sKeyShape(), new SoCube );

When the shape is clicked on, the startPos will be set and the needsDirection callbacks will be invoked. The outide world should then call the setDirection function to set the direction of the drag:

void MyClass::needsDirectionCB( void* data, void* d )
{
    SoInvisibleLineDragger* dragger = (SoInvisibleLineDragger*) d;
    SbVec3f dir = calculateDirection();
    dragger_->setDirection( dir );
}

The class will not change the motionMatrix, so the shape itself will not be moved. The class will not trigger the valueChanged callback on the baseclass - use the Start, Motion and Finish callbacks. The dragged translation is read in SoInvisibleLineDragger::translation following a Motion or Start callback.

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Member Typedef Documentation

typedef SoDragger SoInvisibleLineDragger::inherited [private]

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Constructor & Destructor Documentation

SoInvisibleLineDragger::SoInvisibleLineDragger

(

)

SoInvisibleLineDragger::~SoInvisibleLineDragger

(

)

[protected]

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Member Function Documentation

void SoInvisibleLineDragger::drag

(

void

)

[protected]

void SoInvisibleLineDragger::dragStart

(

void

)

[protected]

static void SoInvisibleLineDragger::initClass

(

)

[static]

static void SoInvisibleLineDragger::motionCB	(	void *	f,
		SoDragger *	d
	)			[static, private]

void SoInvisibleLineDragger::setDirection

(

const SbVec3f &

)

static const char* SoInvisibleLineDragger::sKeyShape

(

)

[inline, static]

SoInvisibleLineDragger::SO_KIT_CATALOG_ENTRY_HEADER

(

shape

)

[private]

SoInvisibleLineDragger::SO_KIT_HEADER

(

SoInvisibleLineDragger

)

[private]

static void SoInvisibleLineDragger::startCB	(	void *	f,
		SoDragger *	d
	)			[static, private]

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Member Data Documentation

SbLineProjector* SoInvisibleLineDragger::lineProj_ [private]

SoCallbackList SoInvisibleLineDragger::needsDirection

SbVec3f SoInvisibleLineDragger::startPos

SbVec3f SoInvisibleLineDragger::translation