Struct Scale

pub(crate) struct Scale {
    pub x_scale: i32,
    pub y_scale: i32,
    pub x_delta: i32,
    pub y_delta: i32,
    pub size: f32,
    pub units_per_em: i32,
    pub flags: u32,
}

Captures scaling parameters which may be modified during metrics computation.

Fields

x_scale: i32

Font unit to 26.6 scale in the X direction.

y_scale: i32

Font unit to 26.6 scale in the Y direction.

x_delta: i32

In 1/64 device pixels.

y_delta: i32

In 1/64 device pixels.

size: f32

Font size in pixels per em.

units_per_em: i32

From the source font.

flags: u32

Flags that determine hinting functionality.

Implementations

impl Scale

pub fn new( size: f32, units_per_em: i32, font_style: Style, target: Target, group: ScriptGroup, ) -> Self

Create initial scaling parameters from metrics and hinting target.

impl Scale

Scaler flags that determine hinting settings.

See https://gitlab.freedesktop.org/freetype/freetype/-/blob/57617782464411201ce7bbc93b086c1b4d7d84a5/src/autofit/aftypes.h#L115 and https://gitlab.freedesktop.org/freetype/freetype/-/blob/57617782464411201ce7bbc93b086c1b4d7d84a5/src/autofit/aflatin.h#L143

pub const HORIZONTAL_SNAP: u32 = 1u32

Stem width snapping.

pub const VERTICAL_SNAP: u32 = 2u32

Stem height snapping.

pub const STEM_ADJUST: u32 = 4u32

Stem width/height adjustment.

pub const MONO: u32 = 8u32

Monochrome rendering.

pub const NO_HORIZONTAL: u32 = 16u32

Disable horizontal hinting.

pub const NO_VERTICAL: u32 = 32u32

Disable vertical hinting.

pub const NO_ADVANCE: u32 = 64u32

Disable advance hinting.

Trait Implementations

impl Clone for Scale

fn clone(&self) -> Scale

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Scale

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

Formats the value using the given formatter.

impl Default for Scale

fn default() -> Scale

Returns the “default value” for a type.

impl Copy for Scale