Enum png::ColorType

#[repr(u8)]
pub enum ColorType {
    Grayscale = 0,
    Rgb = 2,
    Indexed = 3,
    GrayscaleAlpha = 4,
    Rgba = 6,
}

Describes how a pixel is encoded.

Variants

Grayscale = 0

1 grayscale sample.

Rgb = 2

1 red sample, 1 green sample, 1 blue sample.

Indexed = 3

1 sample for the palette index.

GrayscaleAlpha = 4

1 grayscale sample, then 1 alpha sample.

Rgba = 6

1 red sample, 1 green sample, 1 blue sample, and finally, 1 alpha sample.

Implementations

impl ColorType

pub fn samples(self) -> usize

Returns the number of samples used per pixel encoded in this way.

pub fn from_u8(n: u8) -> Option<ColorType>

u8 -> Self. Temporary solution until Rust provides a canonical one.

Trait Implementations

impl Clone for ColorType

fn clone(&self) -> ColorType

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ColorType

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

Formats the value using the given formatter.

impl PartialEq for ColorType

fn eq(&self, other: &ColorType) -> 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 !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for ColorType

impl Eq for ColorType

impl StructuralEq for ColorType

impl StructuralPartialEq for ColorType