Struct Factor

pub struct Factor { /* private fields */ }

Factor struct that used for setting quality and resize ratio in the new image.

The Compressor and FolderCompressor need Factor for compressing images.

So, to create a new Compressor or FolderCompressor instance you need to define a new Factor instance contains the quality ratio of image and file size ratio to compress.

The recommended range of quality is 60 to 80.

Implementations

impl Factor

pub fn new(quality: f32, size_ratio: f32) -> Self

Create a new Factor instance. The quality range from 0 to 100 in float, and size_ratio range from 0 to 1 in float.

Panics

• If the quality value is 0 or less.
• If the quality value exceeds 100.
• If the size ratio value is 0 or less.
• If the size ratio value exceeds 1.

pub fn quality(&self) -> f32

Getter for quality of Factor.

pub fn size_ratio(&self) -> f32

Getter for size_ratio of Factor.

Trait Implementations

impl Clone for Factor

fn clone(&self) -> Factor

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Factor

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

Formats the value using the given formatter.

impl Default for Factor

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for Factor

fn eq(&self, other: &Factor) -> 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 PartialOrd for Factor

fn partial_cmp(&self, other: &Factor) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for Factor

impl StructuralPartialEq for Factor