SoGestureRecognizer Class Reference

Base class for all gesture recognizers. More...

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

Inheritance diagram for SoGestureRecognizer:

List of all members.

Public Member Functions
virtual SoEvent *	recognize (SoEvent *touchEvent)=0

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Detailed Description

Base class for all gesture recognizers.

A gesture recognizer analyzes touch events and translates them into corresponding gesture events.

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

SoScaleGestureRecognizer, SoRotateGestureRecognizer, SoDoubleTapGestureRecognizer, SoLongTapGestureRecognizer

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Member Function Documentation

virtual SoEvent* SoGestureRecognizer::recognize

(

SoEvent *

touchEvent

)

[pure virtual]

If the specified touch event completes a recognized gesture, returns an SoGestureEvent, else returns null.

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

Implemented in SoDoubleTapGestureRecognizer, SoLongTapGestureRecognizer, SoRotateGestureRecognizer, and SoScaleGestureRecognizer.

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

• Inventor/gestures/recognizers/SoGestureRecognizer.h