SoDoubleTapGestureRecognizer Class Reference
Double tap gesture recognizer. More...
#include <Inventor/gestures/recognizers/SoDoubleTapGestureRecognizer.h>
Public Member Functions | |
| SoDoubleTapGestureRecognizer () | |
| virtual | ~SoDoubleTapGestureRecognizer () |
| SoEvent * | recognize (SoEvent *touchEvent) |
| SbTime | getMaximumTapDuration () const |
| SbTime | getMaximumDurationBetweenTap () const |
| int | getSpatialRestriction (void) const |
| void | setMaximumTapDuration (SbTime time) |
| void | setMaximumDurationBetweenTap (SbTime t) |
| void | setSpatialRestriction (int c) |
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
- See related examples:
Constructor & Destructor Documentation
| SoDoubleTapGestureRecognizer::SoDoubleTapGestureRecognizer | ( | ) |
Constructor.
| virtual SoDoubleTapGestureRecognizer::~SoDoubleTapGestureRecognizer | ( | ) | [virtual] |
Destructor.
Member Function Documentation
| SbTime SoDoubleTapGestureRecognizer::getMaximumDurationBetweenTap | ( | ) | const |
Gets the maximum time that can elapse between the two taps of a double tap.
(0.5 seconds by default)
| SbTime SoDoubleTapGestureRecognizer::getMaximumTapDuration | ( | ) | const |
Gets tap maximum duration (1.0 seconds by default).
| 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).
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.
| 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)
| void SoDoubleTapGestureRecognizer::setMaximumTapDuration | ( | SbTime | time | ) |
Sets tap maximum duration (1.0 seconds by default).
| 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)
The documentation for this class was generated from the following file:
- Inventor/gestures/recognizers/SoDoubleTapGestureRecognizer.h