Enum wayland_client::protocol::wl_output::Transform

#[repr(u32)]
#[non_exhaustive]
pub enum Transform {
    Normal,
    _90,
    _180,
    _270,
    Flipped,
    Flipped90,
    Flipped180,
    Flipped270,
}

transform from framebuffer to output

This describes the transform that a compositor will apply to a surface to compensate for the rotation or mirroring of an output device.

The flipped values correspond to an initial flip around a vertical axis followed by rotation.

The purpose is mainly to allow clients to render accordingly and tell the compositor, so that for fullscreen surfaces, the compositor will still be able to scan out directly from client surfaces.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Normal

no transform

_90

90 degrees counter-clockwise

_180

180 degrees counter-clockwise

_270

270 degrees counter-clockwise

Flipped

180 degree flip around a vertical axis

Flipped90

flip and rotate 90 degrees counter-clockwise

Flipped180

flip and rotate 180 degrees counter-clockwise

Flipped270

flip and rotate 270 degrees counter-clockwise

Trait Implementations

impl Clone for Transform

fn clone(&self) -> Transform

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Transform

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

Formats the value using the given formatter.

impl From<Transform> for u32

fn from(val: Transform) -> u32

Performs the conversion.

impl PartialEq<Transform> for Transform

fn eq(&self, other: &Transform) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl TryFrom<u32> for Transform

type Error = ()

The type returned in the event of a conversion error.

fn try_from(val: u32) -> Result<Transform, ()>

Performs the conversion.

impl Copy for Transform

impl StructuralPartialEq for Transform