Struct BcdComponents

pub struct BcdComponents {
    error: Option<Fixed>,
    number: i32,
    sign: i32,
    exponent: i32,
    exponent_add: i32,
    integer_len: i32,
    fraction_len: i32,
}

Components for computing a fixed point value for a binary coded decimal number.

Fields

error: Option<Fixed>

If overflow or underflow is detected early, then this contains the resulting value and we skip further processing.

number: i32

sign: i32

exponent: i32

exponent_add: i32

integer_len: i32

fraction_len: i32

Implementations

impl BcdComponents

fn parse(cursor: &mut Cursor<'_>) -> Result<Self, Error>

Parse a binary coded decimal number. See https://gitlab.freedesktop.org/freetype/freetype/-/blob/82090e67c24259c343c83fd9cefe6ff0be7a7eca/src/cff/cffparse.c#L183

pub fn value(&self, scale_by_1000: bool) -> Fixed

Returns the fixed point value for the precomputed components, optionally using an internal scale factor of 1000 to increase fractional precision.

fn dynamically_scaled_value(&self) -> (Fixed, i32)

Returns the fixed point value for the components along with a dynamically determined scale factor.

Use for processing FontMatrix components.

See https://gitlab.freedesktop.org/freetype/freetype/-/blob/f1cd6dbfa0c98f352b698448f40ac27e8fb3832e/src/cff/cffparse.c#L332

Trait Implementations

impl Clone for BcdComponents

fn clone(&self) -> BcdComponents

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BcdComponents

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

Formats the value using the given formatter.

impl Default for BcdComponents

fn default() -> BcdComponents

Returns the “default value” for a type.

impl From<Fixed> for BcdComponents

fn from(value: Fixed) -> Self

Converts to this type from the input type.

impl PartialEq for BcdComponents

fn eq(&self, other: &BcdComponents) -> 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 Copy for BcdComponents

impl Eq for BcdComponents

impl StructuralPartialEq for BcdComponents