Enum smithay::backend::input::UnusedEvent

pub enum UnusedEvent {}

Used to mark events never emitted by an InputBackend implementation.

Implements all event types and can be used in place for any Event type, that is not used by an InputBackend implementation. Initialization is not possible, making accidental use impossible and enabling a lot of possible compiler optimizations.

Trait Implementations

impl Debug for UnusedEvent

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<B: InputBackend> Event<B> for UnusedEvent

fn time(&self) -> u32

Returns an upward counting variable useful for event ordering.

fn device(&self) -> B::Device

Returns the device, that generated this event

impl<B: InputBackend> KeyboardKeyEvent<B> for UnusedEvent

fn key_code(&self) -> u32

Code of the pressed key. See linux/input-event-codes.h

fn state(&self) -> KeyState

State of the key

fn count(&self) -> u32

Total number of keys pressed on all devices on the associated Seat

impl<B: InputBackend> PointerAxisEvent<B> for UnusedEvent

fn amount(&self, _axis: Axis) -> Option<f64>

Amount of scrolling in pixels on the given Axis.

fn amount_discrete(&self, _axis: Axis) -> Option<f64>

Amount of scrolling in discrete steps on the given Axis.

fn source(&self) -> AxisSource

Source of the scroll event.

impl<B: InputBackend> PointerButtonEvent<B> for UnusedEvent

fn button(&self) -> MouseButton

Pressed button of the event

fn state(&self) -> ButtonState

State of the button

impl<B: InputBackend> PointerMotionAbsoluteEvent<B> for UnusedEvent

fn x(&self) -> f64

Device x position in it’s original coordinate space.

fn y(&self) -> f64

Device y position in it’s original coordinate space.

fn x_transformed(&self, _width: i32) -> f64

Device x position converted to the targets coordinate space’s width. E.g. the focused output’s width.

fn y_transformed(&self, _height: i32) -> f64

Device y position converted to the targets coordinate space’s height. E.g. the focused output’s height.

fn position(&self) -> Point<f64, Raw>

Device position in it’s original coordinate space.

fn position_transformed(
    &self,
    coordinate_space: Size<i32, Logical>
) -> Point<f64, Logical>

Device position converted to the targets coordinate space. E.g. the focused output’s resolution.

impl<B: InputBackend> PointerMotionEvent<B> for UnusedEvent

fn delta_x(&self) -> f64

Delta on the x axis between the last and new pointer device position interpreted as pixel movement

fn delta_y(&self) -> f64

Delta on the y axis between the last and new pointer device position interpreted as pixel movement

fn delta(&self) -> Point<f64, Logical>

Delta between the last and new pointer device position interpreted as pixel movement

impl<B: InputBackend> TabletToolButtonEvent<B> for UnusedEvent

fn button(&self) -> u32

Return the button that triggered this event.

fn seat_button_count(&self) -> u32

For the button of a TabletToolButtonEvent, return the total number of buttons pressed on all devices on the associated seat after the the event was triggered.

fn button_state(&self) -> ButtonState

Return the button state of the event.

impl<B: InputBackend> TabletToolEvent<B> for UnusedEvent

fn tool(&self) -> TabletToolDescriptor

Get tablet tool that caused this event

fn delta_x(&self) -> f64

Delta on the x axis between the last and new pointer device position interpreted as pixel movement

fn delta_y(&self) -> f64

Delta on the y axis between the last and new pointer device position interpreted as pixel movement

fn x(&self) -> f64

Returns the x coordinate of the tablet tool, in mm from the top left corner of the tablet in its current logical orientation.

fn y(&self) -> f64

Returns the y coordinate of the tablet tool, in mm from the top left corner of the tablet in its current logical orientation.

fn x_transformed(&self, _width: i32) -> f64

Return the current absolute X coordinate of the tablet tool event, transformed to screen coordinates.

fn y_transformed(&self, _height: i32) -> f64

Return the current absolute Y coordinate of the tablet tool event, transformed to screen coordinates.

fn distance(&self) -> f64

Returns the current distance from the tablet’s sensor, normalized to the range [0, 1]

fn distance_has_changed(&self) -> bool

Check if the distance axis was updated in this event.

fn pressure(&self) -> f64

Returns the current pressure being applied on the tool in use, normalized to the range [0, 1].

fn pressure_has_changed(&self) -> bool

Check if the pressure axis was updated in this event.

fn slider_position(&self) -> f64

Returns the current position of the slider on the tool, normalized to the range [-1, 1].

fn slider_has_changed(&self) -> bool

Check if the slider axis was updated in this event.

fn tilt_x(&self) -> f64

Returns the current tilt along the X axis of the tablet’s current logical orientation, in degrees off the tablet’s z axis.

fn tilt_x_has_changed(&self) -> bool

Check if the tilt x axis was updated in this event.

fn tilt_y(&self) -> f64

Returns the current tilt along the Y axis of the tablet’s current logical orientation, in degrees off the tablet’s z axis.

fn tilt_y_has_changed(&self) -> bool

Check if the tilt y axis was updated in this event.

fn rotation(&self) -> f64

Returns the current z rotation of the tool in degrees, clockwise from the tool’s logical neutral position.

fn rotation_has_changed(&self) -> bool

Check if the z-rotation axis was updated in this event.

fn wheel_delta(&self) -> f64

Return the delta for the wheel in degrees.

fn wheel_delta_discrete(&self) -> i32

Return the delta for the wheel in discrete steps (e.g. wheel clicks).

fn wheel_has_changed(&self) -> bool

Check if the wheel axis was updated in this event.

fn delta(&self) -> Point<f64, Logical>

Delta between the last and new pointer device position interpreted as pixel movement

fn position(&self) -> Point<f64, Raw>

Tool position in the device’s native coordinate space

fn position_transformed(
    &self,
    coordinate_space: Size<i32, Logical>
) -> Point<f64, Logical>

Tool position converted into the target coordinate space.

fn tilt(&self) -> (f64, f64)

Returns the current tilt along the (X,Y) axis of the tablet’s current logical orientation, in degrees off the tablet’s z axis.

fn tilt_has_changed(&self) -> bool

Check if the tilt was updated in this event.

impl<B: InputBackend> TabletToolProximityEvent<B> for UnusedEvent

fn state(&self) -> ProximityState

Returns the new proximity state of a tool from a proximity event.

impl<B: InputBackend> TabletToolTipEvent<B> for UnusedEvent

fn tip_state(&self) -> TabletToolTipState

Returns the new tip state of a tool from a tip event.

impl<B: InputBackend> TouchCancelEvent<B> for UnusedEvent

fn slot(&self) -> Option<TouchSlot>

TouchSlot, if the device has multi-touch capabilities

impl<B: InputBackend> TouchDownEvent<B> for UnusedEvent

fn slot(&self) -> Option<TouchSlot>

TouchSlot, if the device has multi-touch capabilities

fn x(&self) -> f64

Touch event’s x-coordinate in the device’s native coordinate space

fn y(&self) -> f64

Touch event’s x-coordinate in the device’s native coordinate space

fn x_transformed(&self, _width: i32) -> f64

Touch event’s x position converted to the targets coordinate space’s width. E.g. the focused output’s width.

fn y_transformed(&self, _height: i32) -> f64

Touch event’s y position converted to the targets coordinate space’s width. E.g. the focused output’s width.

fn position(&self) -> Point<f64, Raw>

Touch position in the device’s native coordinate space

fn position_transformed(
    &self,
    coordinate_space: Size<i32, Logical>
) -> Point<f64, Logical>

Touch position converted into the target coordinate space. E.g. the focused output’s resolution.

impl<B: InputBackend> TouchMotionEvent<B> for UnusedEvent

fn slot(&self) -> Option<TouchSlot>

TouchSlot, if the device has multi-touch capabilities

fn x(&self) -> f64

Touch event’s x-coordinate in the device’s native coordinate space

fn y(&self) -> f64

Touch event’s x-coordinate in the device’s native coordinate space

fn x_transformed(&self, _width: i32) -> f64

Touch event’s x position converted to the targets coordinate space’s width. E.g. the focused output’s width.

fn y_transformed(&self, _height: i32) -> f64

Touch event’s y position converted to the targets coordinate space’s width. E.g. the focused output’s width.

fn position(&self) -> Point<f64, Raw>

Touch position in the device’s native coordinate space

fn position_transformed(
    &self,
    coordinate_space: Size<i32, Logical>
) -> Point<f64, Logical>

Touch position converted into the target coordinate space. E.g. the focused output’s resolution.

impl<B: InputBackend> TouchUpEvent<B> for UnusedEvent

fn slot(&self) -> Option<TouchSlot>

TouchSlot, if the device has multi-touch capabilities

impl<B: InputBackend> TabletToolAxisEvent<B> for UnusedEvent

impl<B: InputBackend> TouchFrameEvent<B> for UnusedEvent