Struct F2DOT14 

pub struct F2DOT14(/* private fields */);

The OpenType F2DOT14 type, a 2.14-bit signed fixed-point type.

Implementations

impl F2DOT14

pub const STEP: Self

The difference between adjacent F2DOT14 values.

Examples

assert_eq!(F2DOT14::STEP, 0.000061035156);

pub const MIN: Self

The smallest value that can be represented by this type.

Examples

assert_eq!(F2DOT14::MIN, -2.0);

pub const MAX: Self

The largest value that can be represented by this type.

Examples

assert_eq!(F2DOT14::MAX, 1.999939);

pub const PRECISION: u32

The amount of decimal places the type can accurately represent.

Examples

assert_eq!(F2DOT14::PRECISION, 4);

pub const fn new(num: f32) -> Option<Self>

Creates a F2DOT14 from f32.

Examples

use ttf_view::types::F2DOT14;

assert_eq!(F2DOT14::new(-0.125).unwrap(), -0.125);
assert_eq!(F2DOT14::new(1.99609375).unwrap(), 1.99609375);
assert_eq!(F2DOT14::new(123456.78), None);

// numbers are rounded towards the closest value representable by F2DOT14
assert_eq!(F2DOT14::new(0.5156247).unwrap(), 0.515625);
assert_eq!(F2DOT14::new(0.5156250).unwrap(), 0.515625);
assert_eq!(F2DOT14::new(0.5156254).unwrap(), 0.515625);

pub const unsafe fn new_unchecked(num: f32) -> Self

Creates a F2DOT14 from f32 without checks.

TODO: # Examples

pub const fn from_be_bytes(bytes: [u8; 2]) -> Self

Creates a F2DOT14 from big-endian bytes.

TODO: # Examples

pub const fn to_be_bytes(self) -> [u8; 2]

Gets this F2DOT14’s big-endian bytes.

TODO: # Examples

pub const fn frac_num(&self) -> i16

Returns this F2DOT14 fraction’s numerator (F2DOT14 represented as $\frac{\mathrm{numerator}}{16384}$).

TODO: # Examples

pub const fn get(&self) -> f32

Returns this F2DOT14’s value as f32.

TODO: # Examples

pub const fn round_to_precision(&self) -> f32

Rounds this F2DOT14’s value to PRECISION decimal places.

TODO: # Examples

Trait Implementations

impl Clone for F2DOT14

fn clone(&self) -> F2DOT14

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for F2DOT14

impl Debug for F2DOT14

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

Formats the value using the given formatter.

impl Display for F2DOT14

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

Formats the value using the given formatter.

impl Eq for F2DOT14

impl From<F2DOT14> for f32

fn from(value: F2DOT14) -> Self

Converts to this type from the input type.

impl FromStr for F2DOT14

type Err = ()

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl Hash for F2DOT14

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl LowerExp for F2DOT14

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

Formats the value using the given formatter.

impl Ord for F2DOT14

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

🔬This is a nightly-only experimental API. (clamp_to)

Restrict a value to a certain range.

impl PartialEq for F2DOT14

fn eq(&self, other: &F2DOT14) -> bool

Equality operator ==.

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

Inequality operator !=.

impl PartialEq<f32> for F2DOT14

fn eq(&self, other: &f32) -> bool

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for F2DOT14

fn partial_cmp(&self, other: &Self) -> 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 PartialOrd<f32> for F2DOT14

fn partial_cmp(&self, other: &f32) -> 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 StructuralPartialEq for F2DOT14

impl TryFrom<f32> for F2DOT14

type Error = ()

The type returned in the event of a conversion error.

fn try_from(value: f32) -> Result<F2DOT14, Self::Error>

Performs the conversion.

impl UpperExp for F2DOT14

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

Formats the value using the given formatter.