Class

GtkGestureDrag

Description [src]

final class Gtk.GestureDrag : Gtk.GestureSingle {
  /* No available fields */
}

GtkGestureDrag is a GtkGesture implementation for drags.

The drag operation itself can be tracked throughout the GtkGestureDrag::drag-begin, GtkGestureDrag::drag-update and GtkGestureDrag::drag-end signals, and the relevant coordinates can be extracted through gtk_gesture_drag_get_offset() and gtk_gesture_drag_get_start_point().

Hierarchy

hierarchy this GtkGestureDrag ancestor_0 GtkGestureSingle ancestor_0--this ancestor_1 GtkGesture ancestor_1--ancestor_0 ancestor_2 GtkEventController ancestor_2--ancestor_1 ancestor_3 GObject ancestor_3--ancestor_2

Constructors

gtk_gesture_drag_new

Returns a newly created GtkGesture that recognizes drags.

Instance methods

gtk_gesture_drag_get_offset

Gets the offset from the start point.

gtk_gesture_drag_get_start_point

Gets the point where the drag started.

Methods inherited from GtkGestureSingle (8)
gtk_gesture_single_get_button

Returns the button number gesture listens for.

gtk_gesture_single_get_current_button

Returns the button number currently interacting with gesture, or 0 if there is none.

gtk_gesture_single_get_current_sequence

Returns the event sequence currently interacting with gesture.

gtk_gesture_single_get_exclusive

Gets whether a gesture is exclusive.

gtk_gesture_single_get_touch_only

Returns TRUE if the gesture is only triggered by touch events.

gtk_gesture_single_set_button

Sets the button number gesture listens to.

gtk_gesture_single_set_exclusive

Sets whether gesture is exclusive.

gtk_gesture_single_set_touch_only

Sets whether to handle only touch events.

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.GestureDrag::drag-begin

Emitted whenever dragging starts.

Gtk.GestureDrag::drag-end

Emitted whenever the dragging is finished.

Gtk.GestureDrag::drag-update

Emitted whenever the dragging point moves.

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 GtkGestureDragClass {
  /* no available fields */
}