Class for scale (pinch) gesture events. More...
#include <Inventor/gestures/events/SoScaleGestureEvent.h>
Public Member Functions | |
virtual SoType | getTypeId () const |
Returns the type identifier for this specific instance. | |
SoScaleGestureEvent () | |
Constructor. | |
float | getScaleFactor () const |
Gets the ratio between the current fingers distance and the first distance evaluated after the second down event. | |
float | getDeltaScaleFactor () const |
Gets the ratio between the current fingers distance and the previous distance. | |
Public Member Functions inherited from SoGestureEvent | |
SoGestureEvent () | |
Constructor. | |
virtual | ~SoGestureEvent () |
Destructor. | |
GestureState | getGestureState () const |
Gets the gesture event state (Begin,Delta,End). | |
Public Member Functions inherited from SoEvent | |
SoEvent () | |
Constructor. | |
virtual | ~SoEvent () |
Destructor. | |
virtual void | setTime (SbTime t) |
Sets the time at which the event occurred. | |
SbTime | getTime () const |
Gets the time at which the event occurred. | |
virtual void | setPosition (const SbVec2s &p) |
Sets the window pixel location of the cursor when the event occurred. | |
virtual void | setPosition (const SbVec2f &p) |
Float version of setPosition(const SbVec2s &p). | |
const SbVec2s & | getPosition () const |
Returns the window pixel location of the cursor when the event occurred as integer values. | |
const SbVec2f & | getPositionFloat () const |
Returns the window pixel location of the cursor when the event occurred as float values. | |
const SbVec2s & | getPosition (const SbViewportRegion &vpRgn) const |
Gets the viewport pixel location of the cursor when the event occurred, relative to the origin of the specified viewport region, as integer values. | |
const SbVec2f & | getPositionFloat (const SbViewportRegion &vpRgn) const |
Gets the viewport pixel location of the cursor when the event occurred, relative to the origin of the specified viewport region, as float values. | |
const SbVec2f & | getNormalizedPosition (const SbViewportRegion &vpRgn) const |
Gets the normalized location of the cursor when the event occurred, relative to the specified viewport region. | |
void | setShiftDown (SbBool isDown) |
Sets whether the shift key was down when the event occurred. | |
void | setCtrlDown (SbBool isDown) |
Sets whether the CTRL key was down when the event occurred. | |
void | setAltDown (SbBool isDown) |
Sets whether the ALT key was down when the event occurred. | |
void | setButton1Down (SbBool isDown) |
Sets whether mouse Button 1 was down when the event occurred. | |
SbBool | wasShiftDown () const |
Returns true if the shift key was down when the event occurred. | |
SbBool | wasCtrlDown () const |
Returns true if the CTRL key was down when the event occurred. | |
SbBool | wasAltDown () const |
Returns true if the ALT key was down when the event occurred. | |
SbBool | wasButton1Down () const |
Returns true if mouse button 1 was down when the event occurred. | |
virtual const SbTrackerInfo * | getTrackerInfo () const |
Gets whether an event object has associated tracker information. | |
SbTrackerInfo * | getTrackerInfo () |
Gets whether an event object has associated tracker information. | |
Public Member Functions inherited from SoTypedObject | |
SbBool | isOfType (const SoType &type) const |
Returns TRUE if this object is of the type specified in type or is derived from that type. | |
template<typename TypedObjectClass > | |
SbBool | isOfType () const |
Returns TRUE if this object is of the type of class TypedObjectClass or is derived from that class. | |
Static Public Member Functions | |
static SoType | getClassTypeId () |
Returns the type identifier for this class. | |
Static Public Member Functions inherited from SoGestureEvent | |
static SoType | getClassTypeId () |
Returns the type identifier for this class. | |
Static Public Member Functions inherited from SoEvent | |
static SoType | getClassTypeId () |
Returns the type id for the SoEvent class. | |
Static Public Member Functions inherited from SoTypedObject | |
static SoType | getClassTypeId () |
Returns the type identifier for this class. | |
Additional Inherited Members | |
Public Types inherited from SoGestureEvent | |
enum | GestureState { BEGIN , DELTA , END } |
The different states a gesture event can have. More... | |
Class for scale (pinch) gesture events.
SoScaleGestureEvent represents a pinch gesture in the Open Inventor event model. Touch events are analyzed by a SoScaleGestureRecognizer. When a scale gesture is recognized, the recognizer generates this event. The gesture begins with a BEGIN state event. DELTA state events are generated until the end of the gesture which generates an END state event. See SoGestureEvent::getGestureState().
Note:
SoEvent, SoGestureEvent, SoDoubleTapGestureEvent, SoLongTapGestureEvent, SoRotateGestureEvent, SoScaleGestureRecognizer
Definition at line 85 of file SoScaleGestureEvent.h.
SoScaleGestureEvent::SoScaleGestureEvent | ( | ) |
Constructor.
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static |
Returns the type identifier for this class.
float SoScaleGestureEvent::getDeltaScaleFactor | ( | ) | const |
Gets the ratio between the current fingers distance and the previous distance.
float SoScaleGestureEvent::getScaleFactor | ( | ) | const |
Gets the ratio between the current fingers distance and the first distance evaluated after the second down event.
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virtual |
Returns the type identifier for this specific instance.
Reimplemented from SoGestureEvent.