Enum image::codecs::png::CompressionType

#[non_exhaustive]
pub enum CompressionType {
    Default,
    Fast,
    Best,
    Huffman,
    Rle,
}

Compression level of a PNG encoder. The default setting is Fast.

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.

Default

Default compression level

Fast

Fast, minimal compression

Best

High compression level

Huffman

👎Deprecated: use one of the other compression levels instead, such as ‘Fast’

Huffman coding compression

Rle

👎Deprecated: use one of the other compression levels instead, such as ‘Fast’

Run-length encoding compression

Trait Implementations

impl Clone for CompressionType

fn clone(&self) -> CompressionType

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for CompressionType

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

Formats the value using the given formatter.

impl Default for CompressionType

fn default() -> CompressionType

Returns the “default value” for a type.

impl PartialEq for CompressionType

fn eq(&self, other: &CompressionType) -> 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 CompressionType

impl Eq for CompressionType

impl StructuralEq for CompressionType

impl StructuralPartialEq for CompressionType