Class

PhocGesture

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Description [src]

abstract class Phoc.Gesture : GObject.Object
{
  /* No available fields */
}

PhocGesture helps to detect and track ongoing gestures.

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Ancestors

GObject

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Descendants

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Constructors

Instance methods

phoc_gesture_get_last_event

Returns the last event that was processed for sequence.

phoc_gesture_get_last_update_time

No description available.

phoc_gesture_get_last_updated_sequence

Returns the PhocEventSequence that was last updated on self.

phoc_gesture_get_point

If sequence is currently being interpreted by self, returns TRUE and fills in x and y with the last coordinates stored for that event sequence.

phoc_gesture_get_sequence_state

Returns the sequence state, as seen by self.

phoc_gesture_get_sequences

Returns the list of PhocEventSequences currently being interpreted by PhocGesture.

phoc_gesture_handles_sequence

Returns TRUE if self is currently handling events corresponding to sequence.

unstable since: 3.14

phoc_gesture_is_active

Returns TRUE if the gesture is currently active. A gesture is active meanwhile there are touch sequences interacting with it.

unstable since: 3.14

Returns TRUE if the gesture is currently recognized. A gesture is recognized if there are as many interacting touch sequences as required by self, and PhocGesture::check returned TRUE for the sequences being currently interpreted.

phoc_gesture_reset

Resets the gesture to a clean state.

phoc_gesture_set_sequence_state

Sets the state of sequence in self. Sequences start in state #PHOC_EVENT_SEQUENCE_NONE, and whenever they change state, they can never go back to that state. Likewise, sequences in state #PHOC_EVENT_SEQUENCE_DENIED cannot turn back to a not denied state. With these rules, the lifetime of an event sequence is constrained to the next four:.

phoc_gesture_set_state

No description available.

phoc_gesture_ungroup

Separates self into an isolated group.

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Methods inherited from GObject (43)

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Properties

Phoc.Gesture:n-points

The number of touch points that trigger recognition on this gesture.

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Signals inherited from GObject (1)

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Class structure

struct PhocGestureClass {
  GObjectClass parent_class;
  gboolean (* check) (
    PhocGesture* self
  );
  gboolean (* handle_event) (
    PhocGesture* self,
    const PhocEvent* event,
    double lx,
    double ly
  );
  void (* reset) (
    PhocGesture* self
  );
  gboolean (* filter_event) (
    PhocGesture* self,
    const PhocEvent* event
  );
  void (* begin) (
    PhocGesture* self,
    PhocEventSequence* seq
  );
  void (* update) (
    PhocGesture* self,
    PhocEventSequence* seq
  );
  void (* end) (
    PhocGesture* self,
    PhocEventSequence* seq
  );
  void (* cancel) (
    PhocGesture* self,
    PhocEventSequence* seq
  );
  void (* sequence_state_changed) (
    PhocGesture* gesture,
    PhocEventSequence* sequence,
    PhocEventSequenceState state
  );
  
}

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