Struct ScalerOutline 

pub struct ScalerOutline<'a> {
    scaler: &'a ScalerFont,
    outline: OutlineGlyph<'a>,
}

An outline from a ScalerFont, resolved for drawing.

Holds the outline in its source format. A caller can size its own working memory and then draw without looking up the glyph again.

Fields

scaler: &'a ScalerFont

outline: OutlineGlyph<'a>

Implementations

impl ScalerOutline<'_>

pub fn glyph(&self) -> GlyphId

Returns the glyph identifier.

pub fn source(&self) -> OutlineSource

Returns the table that contains the outline.

pub fn required_memory_size(&self) -> usize

Returns the size in bytes of the working memory needed by draw.

Returns zero for the automatic hinter, which manages its own memory.

pub fn draw( &self, memory: DrawMemory<'_>, sink: &mut impl PathSink, ) -> Result<DrawnMetrics, ScaleError>

Draws the outline into sink with the scaler’s size and hinting.

With DrawMemory::Scratch, working memory comes from short lived scratch, which may be allocated on the heap for a large glyph program. Supplied memory must hold at least required_memory_size bytes, or the draw fails with ScaleError::InsufficientMemory.

fn draw_dyn( &self, memory: Option<&mut [u8]>, sink: &mut dyn PathSink, ) -> Result<DrawnMetrics, ScaleError>

Dispatches a draw through a trait object so the engines are compiled once rather than once per sink type.

Trait Implementations

impl<'a> Clone for ScalerOutline<'a>

fn clone(&self) -> ScalerOutline<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ScalerOutline<'_>

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

Formats the value using the given formatter.