GestureAction

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Object Hierarchy:

Description:

Content:

Properties:

• public int n_touch_points { get; set; }
  Number of touch points to trigger a gesture action.
• public float threshold_trigger_distance_x { get; construct; }
  The horizontal trigger distance to be used by the action to either emit the gesture_begin signal or to emit the gesture_cancel signal.
• public float threshold_trigger_distance_y { get; construct; }
  The vertical trigger distance to be used by the action to either emit the gesture_begin signal or to emit the gesture_cancel signal.
• public GestureTriggerEdge threshold_trigger_edge { get; construct; }
  The trigger edge to be used by the action to either emit the gesture_begin signal or to emit the gesture_cancel signal.

Creation methods:

• public GestureAction ()
  Creates a new GestureAction instance.

Methods:

• public void cancel ()
  Cancel a GestureAction before it begins
• public virtual bool gesture_prepare (Actor actor)
• public unowned InputDevice get_device (uint point)
  Retrieves the InputDevice of a touch point.
• public unowned Event get_last_event (uint point)
  Retrieves a reference to the last Event for a touch point.
• public void get_motion_coords (uint point, out float motion_x, out float motion_y)
  Retrieves the coordinates, in stage space, of the latest motion event during the dragging.
• public float get_motion_delta (uint point, out float delta_x, out float delta_y)
  Retrieves the incremental delta since the last motion event during the dragging.
• public uint get_n_current_points ()
  Retrieves the number of points currently active.
• public int get_n_touch_points ()
  Retrieves the number of requested points to trigger the gesture.
• public void get_press_coords (uint point, out float press_x, out float press_y)
  Retrieves the coordinates, in stage space, of the press event that started the dragging for a specific touch point.
• public void get_release_coords (uint point, out float release_x, out float release_y)
  Retrieves the coordinates, in stage space, where the touch point was last released.
• public unowned EventSequence get_sequence (uint point)
  Retrieves the EventSequence of a touch point.
• public void get_threshold_trigger_distance (out float x, out float y)
  Retrieves the threshold trigger distance of the gesture this, as set using set_threshold_trigger_distance.
• public GestureTriggerEdge get_threshold_trigger_edge ()
  Retrieves the edge trigger of the gesture this, as set using set_threshold_trigger_edge .
• public GestureTriggerEdge get_threshold_trigger_egde ()
  Retrieves the edge trigger of the gesture this, as set using set_threshold_trigger_edge .
• public float get_velocity (uint point, out float velocity_x, out float velocity_y)
  Retrieves the velocity, in stage pixels per millisecond, of the latest motion event during the dragging.
• public void set_n_touch_points (int nb_points)
  Sets the number of points needed to trigger the gesture.
• public void set_threshold_trigger_distance (float x, float y)
  Sets the threshold trigger distance for the gesture drag threshold, if any.
• public void set_threshold_trigger_edge (GestureTriggerEdge edge)
  Sets the edge trigger for the gesture drag threshold, if any.

Signals:

• public virtual signal bool gesture_begin (Actor actor)
  The gesture_begin signal is emitted when the Actor to which a GestureAction has been applied starts receiving a gesture.
• public virtual signal void gesture_cancel (Actor actor)
  The gesture_cancel signal is emitted when the ongoing gesture gets cancelled from the gesture_progress signal handler.
• public virtual signal void gesture_end (Actor actor)
  The gesture_end signal is emitted at the end of the gesture gesture, when the pointer's button is released
• public virtual signal bool gesture_progress (Actor actor)
  The gesture_progress signal is emitted for each motion event after the gesture_begin signal has been emitted.

Inherited Members: