Enum AlphaOp 

#[non_exhaustive]
pub enum AlphaOp {
    On,
    Off,
    Remove,
    Set,
    Transparent,
}

-alpha SUBCOMMAND. ImageMagick exposes a small grammar of alpha-channel edits — we cover the ones with deterministic semantics on RGBA buffers.

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.

On

on / activate — enable alpha (no-op when output is already RGBA).

Off

off / deactivate — strip the alpha channel from the output (Rgba → Rgb24).

Remove

remove — composite the image over the current -background colour and force every output pixel’s alpha to 255.

Set

set / opaque — set every alpha sample to 255 without compositing.

Transparent

transparent — set every alpha sample to 0 without touching the colour channels.

Implementations

impl AlphaOp

pub fn parse(s: &str) -> Result<AlphaOp, String>

Trait Implementations

impl Clone for AlphaOp

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 AlphaOp

impl Debug for AlphaOp

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

Formats the value using the given formatter.

impl Eq for AlphaOp

impl PartialEq for AlphaOp

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for AlphaOp