Struct png::ScaledFloat

pub struct ScaledFloat(/* private fields */);

An unsigned integer scaled version of a floating point value, equivalent to an integer quotient with fixed denominator (100_000)).

Implementations

impl ScaledFloat

pub fn in_range(value: f32) -> bool

Gets whether the value is within the clamped range of this type.

pub fn exact(value: f32) -> bool

Gets whether the value can be exactly converted in round-trip.

pub fn new(value: f32) -> Self

Slightly inaccurate scaling and quantization. Clamps the value into the representable range if it is negative or too large.

pub fn from_scaled(val: u32) -> Self

Fully accurate construction from a value scaled as per specification.

pub fn into_scaled(self) -> u32

Get the accurate encoded value.

pub fn into_value(self) -> f32

Get the unscaled value as a floating point.

Trait Implementations

impl Clone for ScaledFloat

fn clone(&self) -> ScaledFloat

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ScaledFloat

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

Formats the value using the given formatter.

impl PartialEq for ScaledFloat

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

impl Eq for ScaledFloat

impl StructuralEq for ScaledFloat

impl StructuralPartialEq for ScaledFloat