Clutter.GestureAction¶

Subclasses:: Clutter.PanAction, Clutter.RotateAction, Clutter.SwipeAction, Clutter.TapAction, Clutter.ZoomAction

Methods¶

Inherited:: Clutter.ActorMeta (5), GObject.Object (37)
Structs:: GObject.ObjectClass (5)

class	`new` ()
	`cancel` ()
	`get_device` (point)
	`get_last_event` (point)
	`get_motion_coords` (point)
	`get_motion_delta` (point)
	`get_n_current_points` ()
	`get_n_touch_points` ()
	`get_press_coords` (point)
	`get_release_coords` (point)
	`get_sequence` (point)
	`get_threshold_trigger_distance` ()
	`get_threshold_trigger_edge` ()
	`get_threshold_trigger_egde` ()
	`get_velocity` (point)
	`set_n_touch_points` (nb_points)
	`set_threshold_trigger_distance` (x, y)
	`set_threshold_trigger_edge` (edge)

Virtual Methods¶

Inherited:: Clutter.ActorMeta (1), GObject.Object (7)

	`do_gesture_begin` (actor)
	`do_gesture_cancel` (actor)
	`do_gesture_end` (actor)
	`do_gesture_prepare` (actor)
	`do_gesture_progress` (actor)

Properties¶

Inherited:: Clutter.ActorMeta (3)

Name	Type	Flags	Short Description
`n-touch-points`	`int`	r/w	Number of touch points
`threshold-trigger-distance-x`	`float`	r/w/co	The horizontal trigger distance used by the action
`threshold-trigger-distance-y`	`float`	r/w/co	The vertical trigger distance used by the action
`threshold-trigger-edge`	`Clutter.GestureTriggerEdge`	r/w/co	The trigger edge used by the action

Signals¶

Inherited:: GObject.Object (1)

Name	Short Description
`gesture-begin`	The ::gesture_begin signal is emitted when the `Clutter.Actor` to which a `Clutter.GestureAction` has been applied starts receiving a gesture.
`gesture-cancel`	The `::gesture-cancel` signal is emitted when the ongoing gesture gets cancelled from the `Clutter.GestureAction` `::gesture-progress` signal handler.
`gesture-end`	The `::gesture-end` signal is emitted at the end of the gesture gesture, when the pointer’s button is released This signal is emitted if and only if the `Clutter.GestureAction` `::gesture-begin` signal has been emitted first.
`gesture-progress`	The `::gesture-progress` signal is emitted for each motion event after the `Clutter.GestureAction` `::gesture-begin` signal has been emitted.

Fields¶

Inherited:: GObject.Object (1)

Name	Type	Access	Description
parent_instance	`Clutter.Action`	r

Class Details¶

class Clutter.GestureAction(**kwargs)¶

Bases:: Clutter.Action
Abstract:: No
Structure:: Clutter.GestureActionClass

The Clutter.GestureAction structure contains only private data and should be accessed using the provided API

New in version 1.8.

classmethod new()¶

Returns:: the newly created Clutter.GestureAction
Return type:: Clutter.Action

Creates a new Clutter.GestureAction instance.

New in version 1.8.

cancel()¶: Cancel a Clutter.GestureAction before it begins

New in version 1.12.

get_device(point)¶

Parameters:: point (int) – the touch point index, with 0 being the first touch point received by the action
Returns:: the Clutter.InputDevice of a touch point.
Return type:: Clutter.InputDevice

Retrieves the Clutter.InputDevice of a touch point.

New in version 1.12.

get_last_event(point)¶

Parameters:: point (int) – index of a point currently active
Returns:: the last Clutter.Event for a touch point.
Return type:: Clutter.Event

Retrieves a reference to the last Clutter.Event for a touch point. Call Clutter.Event.copy() if you need to store the reference somewhere.

New in version 1.14.

get_motion_coords(point)¶

Parameters:

point (int) – the touch point index, with 0 being the first touch point received by the action

Returns:

motion_x:: return location for the latest motion event’s X coordinate
motion_y:: return location for the latest motion event’s Y coordinate

Return type:

(motion_x: float, motion_y: float)

Retrieves the coordinates, in stage space, of the latest motion event during the dragging.

New in version 1.8.

get_motion_delta(point)¶

Parameters:

point (int) – the touch point index, with 0 being the first touch point received by the action

Returns:

the distance since last motion event

delta_x:: return location for the X axis component of the incremental motion delta
delta_y:: return location for the Y axis component of the incremental motion delta

Return type:

(float, delta_x: float, delta_y: float)

Retrieves the incremental delta since the last motion event during the dragging.

New in version 1.12.

get_n_current_points()¶

Returns:: the number of points currently active.
Return type:: int

Retrieves the number of points currently active.

New in version 1.12.

get_n_touch_points()¶

Returns:: the number of points to trigger the gesture.
Return type:: int

Retrieves the number of requested points to trigger the gesture.

New in version 1.12.

get_press_coords(point)¶

Parameters:

point (int) – the touch point index, with 0 being the first touch point received by the action

Returns:

press_x:: return location for the press event’s X coordinate
press_y:: return location for the press event’s Y coordinate

Return type:

(press_x: float, press_y: float)

Retrieves the coordinates, in stage space, of the press event that started the dragging for a specific touch point.

New in version 1.8.

get_release_coords(point)¶

Parameters:

point (int) – the touch point index, with 0 being the first touch point received by the action

Returns:

release_x:: return location for the X coordinate of the last release
release_y:: return location for the Y coordinate of the last release

Return type:

(release_x: float, release_y: float)

Retrieves the coordinates, in stage space, where the touch point was last released.

New in version 1.8.

get_sequence(point)¶

Parameters:: point (int) – index of a point currently active
Returns:: the Clutter.EventSequence of a touch point.
Return type:: Clutter.EventSequence

Retrieves the Clutter.EventSequence of a touch point.

New in version 1.12.

get_threshold_trigger_distance()¶

Returns:

x:: The return location for the horizontal distance, or None
y:: The return location for the vertical distance, or None

Return type:

(x: float, y: float)

Retrieves the threshold trigger distance of the gesture self, as set using Clutter.GestureAction.set_threshold_trigger_distance().

New in version 1.18.

get_threshold_trigger_edge()¶

Returns:: the edge trigger
Return type:: Clutter.GestureTriggerEdge

Retrieves the edge trigger of the gesture self, as set using Clutter.GestureAction.set_threshold_trigger_edge().

New in version 1.20.

get_threshold_trigger_egde()¶

Returns:: the edge trigger
Return type:: Clutter.GestureTriggerEdge

Retrieves the edge trigger of the gesture self, as set using Clutter.GestureAction.set_threshold_trigger_edge().

New in version 1.18.

Deprecated since version 1.20: Use Clutter.GestureAction.get_threshold_trigger_edge() instead.

get_velocity(point)¶

Parameters:

point (int) – the touch point index, with 0 being the first touch point received by the action

Returns:

velocity_x:: return location for the latest motion event’s X velocity
velocity_y:: return location for the latest motion event’s Y velocity

Return type:

(float, velocity_x: float, velocity_y: float)

Retrieves the velocity, in stage pixels per millisecond, of the latest motion event during the dragging.

New in version 1.12.

set_n_touch_points(nb_points)¶

Parameters:: nb_points (int) – a number of points

Sets the number of points needed to trigger the gesture.

New in version 1.12.

set_threshold_trigger_distance(x, y)¶

Parameters:

x (float) – the distance on the horizontal axis
y (float) – the distance on the vertical axis

Sets the threshold trigger distance for the gesture drag threshold, if any.

This function should only be called by sub-classes of Clutter.GestureAction during their construction phase.

New in version 1.18.

set_threshold_trigger_edge(edge)¶

Parameters:: edge (Clutter.GestureTriggerEdge) – the Clutter.GestureTriggerEdge

Sets the edge trigger for the gesture drag threshold, if any.

This function should only be called by sub-classes of Clutter.GestureAction during their construction phase.

New in version 1.18.

do_gesture_begin(actor) virtual¶

Parameters:: actor (Clutter.Actor) –
Return type:: bool

do_gesture_cancel(actor) virtual¶

Parameters:: actor (Clutter.Actor) –

do_gesture_end(actor) virtual¶

Parameters:: actor (Clutter.Actor) –

do_gesture_prepare(actor) virtual¶

Parameters:: actor (Clutter.Actor) –
Return type:: bool

do_gesture_progress(actor) virtual¶

Parameters:: actor (Clutter.Actor) –
Return type:: bool

Signal Details¶

Clutter.GestureAction.signals.gesture_begin(gesture_action, actor)¶

Signal Name:

gesture-begin

Flags:

RUN_LAST

Parameters:

gesture_action (Clutter.GestureAction) – The object which received the signal
actor (Clutter.Actor) – the Clutter.Actor attached to the action

Returns:

True if the gesture should start, and False if the gesture should be ignored.

Return type:

bool

The ::gesture_begin signal is emitted when the Clutter.Actor to which a Clutter.GestureAction has been applied starts receiving a gesture.

New in version 1.8.

Clutter.GestureAction.signals.gesture_cancel(gesture_action, actor)¶

Signal Name:

gesture-cancel

Flags:

RUN_LAST

Parameters:

gesture_action (Clutter.GestureAction) – The object which received the signal
actor (Clutter.Actor) – the Clutter.Actor attached to the action

The ::gesture-cancel signal is emitted when the ongoing gesture gets cancelled from the Clutter.GestureAction ::gesture-progress signal handler.

This signal is emitted if and only if the Clutter.GestureAction ::gesture-begin signal has been emitted first.

New in version 1.8.

Clutter.GestureAction.signals.gesture_end(gesture_action, actor)¶

Signal Name:

gesture-end

Flags:

RUN_LAST

Parameters:

gesture_action (Clutter.GestureAction) – The object which received the signal
actor (Clutter.Actor) – the Clutter.Actor attached to the action

The ::gesture-end signal is emitted at the end of the gesture gesture, when the pointer’s button is released

This signal is emitted if and only if the Clutter.GestureAction ::gesture-begin signal has been emitted first.

New in version 1.8.

Clutter.GestureAction.signals.gesture_progress(gesture_action, actor)¶

Signal Name:

gesture-progress

Flags:

RUN_LAST

Parameters:

gesture_action (Clutter.GestureAction) – The object which received the signal
actor (Clutter.Actor) – the Clutter.Actor attached to the action

Returns:

True if the gesture should continue, and False if the gesture should be cancelled.

Return type:

bool

The ::gesture-progress signal is emitted for each motion event after the Clutter.GestureAction ::gesture-begin signal has been emitted.

New in version 1.8.

Property Details¶

Clutter.GestureAction.props.n_touch_points¶

Name:: n-touch-points
Type:: int
Default Value:: 1
Flags:: READABLE, WRITABLE

Number of touch points to trigger a gesture action.

New in version 1.16.

Clutter.GestureAction.props.threshold_trigger_distance_x¶

Name:: threshold-trigger-distance-x
Type:: float
Default Value:: -1.0
Flags:: READABLE, WRITABLE, CONSTRUCT_ONLY

The horizontal trigger distance to be used by the action to either emit the Clutter.GestureAction ::gesture-begin signal or to emit the Clutter.GestureAction ::gesture-cancel signal.

A negative value will be interpreted as the default drag threshold.

New in version 1.18.

Clutter.GestureAction.props.threshold_trigger_distance_y¶

Name:: threshold-trigger-distance-y
Type:: float
Default Value:: -1.0
Flags:: READABLE, WRITABLE, CONSTRUCT_ONLY

The vertical trigger distance to be used by the action to either emit the Clutter.GestureAction ::gesture-begin signal or to emit the Clutter.GestureAction ::gesture-cancel signal.

A negative value will be interpreted as the default drag threshold.

New in version 1.18.

Clutter.GestureAction.props.threshold_trigger_edge¶

Name:: threshold-trigger-edge
Type:: Clutter.GestureTriggerEdge
Default Value:: Clutter.GestureTriggerEdge.NONE
Flags:: READABLE, WRITABLE, CONSTRUCT_ONLY

The trigger edge to be used by the action to either emit the Clutter.GestureAction ::gesture-begin signal or to emit the Clutter.GestureAction ::gesture-cancel signal.

New in version 1.18.