Enum Transform

#[repr(u32)]
pub enum Transform {
    Normal = 0,
    _90 = 1,
    _180 = 2,
    _270 = 3,
    Flipped = 4,
    Flipped90 = 5,
    Flipped180 = 6,
    Flipped270 = 7,
}

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

Normal = 0

no transform

_90 = 1

90 degrees counter-clockwise

_180 = 2

180 degrees counter-clockwise

_270 = 3

270 degrees counter-clockwise

Flipped = 4

180 degree flip around a vertical axis

Flipped90 = 5

flip and rotate 90 degrees counter-clockwise

Flipped180 = 6

flip and rotate 180 degrees counter-clockwise

Flipped270 = 7

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(enum_value: Transform) -> Self

Converts to this type from the input type.

impl PartialEq for Transform

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl TryFrom<u32> for Transform

type Error = TryFromPrimitiveError<Transform>

The type returned in the event of a conversion error.

fn try_from(number: u32) -> Result<Self, TryFromPrimitiveError<Self>>

Performs the conversion.

impl TryFromPrimitive for Transform

const NAME: &'static str = "Transform"

type Primitive = u32

fn try_from_primitive( number: Self::Primitive, ) -> Result<Self, TryFromPrimitiveError<Self>>

impl Copy for Transform

impl Eq for Transform

impl StructuralPartialEq for Transform