SoDoubleTapGestureRecognizer Class Reference

Double tap gesture recognizer. More...

#include <Inventor/gestures/recognizers/SoDoubleTapGestureRecognizer.h>

Inheritance diagram for SoDoubleTapGestureRecognizer:

Public Member Functions
	SoDoubleTapGestureRecognizer ()
	Constructor.
virtual	~SoDoubleTapGestureRecognizer ()
	Destructor.
SoEvent *	recognize (SoEvent *touchEvent)
	If a double tap gesture is recognized, returns an SoDoubleTapGestureEvent, else returns null.
SbTime	getMaximumTapDuration () const
	Gets tap maximum duration (1.0 seconds by default).
SbTime	getMaximumDurationBetweenTap () const
	Gets the maximum time that can elapse between the two taps of a double tap.
int	getSpatialRestriction (void) const
	Gets the radius of limitation circle in which the finger has to stay throughout the gesture (60 pixels by default).
void	setMaximumTapDuration (SbTime time)
	Sets tap maximum duration (1.0 seconds by default).
void	setMaximumDurationBetweenTap (SbTime t)
	Sets the maximum time that can elapse between the two taps of a double tap.
void	setSpatialRestriction (int c)
	Sets the radius of limitation circle in which the finger has to stay throughout the gesture.

Detailed Description

Double tap gesture recognizer.

SoDoubleTapGestureRecognizer analyses touch events and recognizes a one finger double-tap gesture. It returns an SoDoubleTapGestureEvent with this gesture is recognized. The finger has to stay in a limitation area from the down event to the end one and must be completed within a maximum elapsed time. This recognizer only generates an END event.

Note:

• In order to get touch events for the gesture recognizer(s) to recognize, the application must explicitly register a touch screen device (SoWinTouchScreen, SoQtTouchScreen, etc).
• In order to get gesture events, the application must explicitly register gesture recognizers with the touch screen device's touch manager (SoTouchManager).

SEE ALSO

SoGestureRecognizer, SoLongTapGestureRecognizer, SoRotateGestureRecognizer, SoScaleGestureRecognizer, SoDoubleTapGestureEvent

Definition at line 86 of file SoDoubleTapGestureRecognizer.h.

Constructor & Destructor Documentation

SoDoubleTapGestureRecognizer()

SoDoubleTapGestureRecognizer::SoDoubleTapGestureRecognizer

(

)

Constructor.

~SoDoubleTapGestureRecognizer()

virtual SoDoubleTapGestureRecognizer::~SoDoubleTapGestureRecognizer ( )

virtual

Destructor.

Member Function Documentation

getMaximumDurationBetweenTap()

SbTime SoDoubleTapGestureRecognizer::getMaximumDurationBetweenTap

(

)

const

Gets the maximum time that can elapse between the two taps of a double tap.

(0.5 seconds by default)

getMaximumTapDuration()

SbTime SoDoubleTapGestureRecognizer::getMaximumTapDuration

(

)

const

Gets tap maximum duration (1.0 seconds by default).

getSpatialRestriction()

int SoDoubleTapGestureRecognizer::getSpatialRestriction

(

void

)

const

Gets the radius of limitation circle in which the finger has to stay throughout the gesture (60 pixels by default).

recognize()

SoEvent * SoDoubleTapGestureRecognizer::recognize ( SoEvent *  touchEvent )

virtual

If a double tap gesture is recognized, returns an SoDoubleTapGestureEvent, else returns null.

Returns a pointer to an internal data object. Do not modify or delete this object.

Implements SoGestureRecognizer.

setMaximumDurationBetweenTap()

void SoDoubleTapGestureRecognizer::setMaximumDurationBetweenTap

(

SbTime

t

)

Sets the maximum time that can elapse between the two taps of a double tap.

(0.5 seconds by default)

setMaximumTapDuration()

void SoDoubleTapGestureRecognizer::setMaximumTapDuration

(

SbTime

time

)

Sets tap maximum duration (1.0 seconds by default).

setSpatialRestriction()

void SoDoubleTapGestureRecognizer::setSpatialRestriction

(

int

c

)

Sets the radius of limitation circle in which the finger has to stay throughout the gesture.

(60 pixels by default)

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

• Inventor/gestures/recognizers/SoDoubleTapGestureRecognizer.h