Struct GlyphKey 

pub struct GlyphKey {
    pub font: FontId,
    pub gid: Gid,
    pub dest_width: i32,
    pub weight: i32,
    pub italic_angle: i32,
    pub vertical: bool,
}

What identifies one cached outline.

hint_flags is deliberately absent, and stayed absent when wave 7b brought hinting in. This cache holds the outlines the path side of text fills, and that side is unhinted at every size, for every face.

The hinted outline belongs to the glyph-bitmap side, which is a different cache in a different crate (pdfrum_render::glyph::BitmapCache) because it holds a different thing: a rasterization, which depends on the device matrix, where an outline does not. That separation is why this key did not need to grow a size — the key that does have one is over there.

The five fields below all genuinely vary an outline for at least one face kind.

Fields

font: FontId

Which font — cache entries from two fonts must never be confused even when they share a face.

gid: Gid

Which glyph.

dest_width: i32

The PDF’s declared width for this character code, which solves a Multiple-Master face’s width axis.

weight: i32

The substitution weight, which drives a Multiple-Master face’s weight axis. Zero means the face’s own.

italic_angle: i32

The synthetic italic angle, which shears the outline.

vertical: bool

Whether this is a vertical-writing form.

Implementations

impl GlyphKey

pub fn plain(font: FontId, gid: Gid) -> Self

A key for a glyph drawn with no substitution adjustments at all.

Trait Implementations

impl Clone for GlyphKey

fn clone(&self) -> GlyphKey

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for GlyphKey

impl Debug for GlyphKey

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

Formats the value using the given formatter.

impl Eq for GlyphKey

impl Hash for GlyphKey

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 PartialEq for GlyphKey

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for GlyphKey