Enum Rotation 

#[repr(u32)]
pub enum Rotation {
    None = 0,
    Clockwise90 = 1,
    Rotate180 = 2,
    CounterClockwise90 = 3,
}

A quarter-turn rotation applied during ImageProcessorTrait::convert.

Variants

None = 0

Clockwise90 = 1

Rotate180 = 2

CounterClockwise90 = 3

Implementations

impl Rotation

pub const fn code(self) -> u32

The shared code for this variant. Identical on every surface.

const, deliberately: a downstream binding that cannot write Variant = OtherEnum::Variant.code() in a #[pyclass] discriminant position (PyO3 requires a literal there) can still pin that literal to this value with a const _: () = assert!(...) – a build-time check instead of a hand-synced comment. See PyTensorMemory/PyPixelFormat in crates/python-common/src/tensor.rs for the consumer.

pub fn from_code(code: u32) -> Option<Self>

Reject an unknown code rather than guessing at one.

pub fn as_str(self) -> &'static str

The wire string form – stable, unlike Debug.

pub fn from_str_code(s: &str) -> Option<Self>

Reject an unknown string rather than guessing at one.

pub fn all() -> &'static [Self]

Every variant, for exhaustive cross-surface tests.

impl Rotation

pub fn from_degrees_clockwise(angle: usize) -> Rotation

Creates a Rotation enum from an angle in degrees. The angle must be a multiple of 90.

Panics

Panics if the angle is not a multiple of 90.

Examples

let rotation = Rotation::from_degrees_clockwise(270);
assert_eq!(rotation, Rotation::CounterClockwise90);

Trait Implementations

impl Clone for Rotation

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Rotation

impl Debug for Rotation

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

Formats the value using the given formatter.

impl Default for Rotation

fn default() -> Self

Returns the “default value” for a type.

impl Eq for Rotation

impl Hash for Rotation

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Rotation

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Rotation