Class

GtkGestureRotate

Description [src]

final class Gtk.GestureRotate : Gtk.Gesture {
  /* No available fields */
}

GtkGestureRotate is a GtkGesture for 2-finger rotations.

Whenever the angle between both handled sequences changes, the GtkGestureRotate::angle-changed signal is emitted.

Hierarchy

hierarchy this GtkGestureRotate ancestor_0 GtkGesture ancestor_0--this ancestor_1 GtkEventController ancestor_1--ancestor_0 ancestor_2 GObject ancestor_2--ancestor_1

Ancestors

Constructors

gtk_gesture_rotate_new

Returns a newly created GtkGesture that recognizes 2-touch rotation gestures.

Instance methods

gtk_gesture_rotate_get_angle_delta

Gets the angle delta in radians.

Methods inherited from GtkGesture (17)
gtk_gesture_get_bounding_box

If there are touch sequences being currently handled by gesture, returns TRUE and fills in rect with the bounding box containing all active touches.

gtk_gesture_get_bounding_box_center

If there are touch sequences being currently handled by gesture, returns TRUE and fills in x and y with the center of the bounding box containing all active touches.

gtk_gesture_get_device

Returns the logical GdkDevice that is currently operating on gesture.

gtk_gesture_get_group

Returns all gestures in the group of gesture.

gtk_gesture_get_last_event

Returns the last event that was processed for sequence.

gtk_gesture_get_last_updated_sequence

Returns the GdkEventSequence that was last updated on gesture.

gtk_gesture_get_point

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

gtk_gesture_get_sequence_state

Returns the sequence state, as seen by gesture.

gtk_gesture_get_sequences

Returns the list of GdkEventSequences currently being interpreted by gesture.

gtk_gesture_group

Adds gesture to the same group than group_gesture.

gtk_gesture_handles_sequence

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

gtk_gesture_is_active

Returns TRUE if the gesture is currently active.

gtk_gesture_is_grouped_with

Returns TRUE if both gestures pertain to the same group.

gtk_gesture_is_recognized

Returns TRUE if the gesture is currently recognized.

gtk_gesture_set_sequence_state

Sets the state of sequence in gesture.

gtk_gesture_set_state

Sets the state of all sequences that gesture is currently interacting with.

gtk_gesture_ungroup

Separates gesture into an isolated group.

Methods inherited from GtkEventController (12)
gtk_event_controller_get_current_event

Returns the event that is currently being handled by the controller.

gtk_event_controller_get_current_event_device

Returns the device of the event that is currently being handled by the controller.

gtk_event_controller_get_current_event_state

Returns the modifier state of the event that is currently being handled by the controller.

gtk_event_controller_get_current_event_time

Returns the timestamp of the event that is currently being handled by the controller.

gtk_event_controller_get_name

Gets the name of controller.

gtk_event_controller_get_propagation_limit

Gets the propagation limit of the event controller.

gtk_event_controller_get_propagation_phase

Gets the propagation phase at which controller handles events.

gtk_event_controller_get_widget

Returns the GtkWidget this controller relates to.

gtk_event_controller_reset

Resets the controller to a clean state.

gtk_event_controller_set_name

Sets a name on the controller that can be used for debugging.

gtk_event_controller_set_propagation_limit

Sets the event propagation limit on the event controller.

gtk_event_controller_set_propagation_phase

Sets the propagation phase at which a controller handles events.

Signals

Gtk.GestureRotate::angle-changed

Emitted when the angle between both tracked points changes.

Signals inherited from GtkGesture (5)
Gtk.Gesture::begin

Emitted when the gesture is recognized.

Gtk.Gesture::cancel

Emitted whenever a sequence is cancelled.

Gtk.Gesture::end

Emitted when gesture either stopped recognizing the event sequences as something to be handled, or the number of touch sequences became higher or lower than GtkGesture:n-points.

Gtk.Gesture::sequence-state-changed

Emitted whenever a sequence state changes.

Gtk.Gesture::update

Emitted whenever an event is handled while the gesture is recognized.

Class structure

struct GtkGestureRotateClass {
  /* no available fields */
}