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Move shift settings to ShapingContext

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This commit is contained in:
Malo 2025-06-22 15:34:08 +01:00
parent 71b637396f
commit 566a06302d
1 changed files with 7 additions and 13 deletions
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20
crates/typst-layout/src/inline/shaping.rs
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@ -672,7 +672,7 @@ fn shape<'a>(
region: Option<Region>,
) -> ShapedText<'a> {
let size = TextElem::size_in(styles);
let script_settings = TextElem::shift_settings_in(styles);
let shift_settings = TextElem::shift_settings_in(styles);
let mut ctx = ShapingContext {
engine,
size,
@ -683,10 +683,11 @@ fn shape<'a>(
features: features(styles),
fallback: TextElem::fallback_in(styles),
dir,
shift_settings,
};
if !text.is_empty() {
shape_segment(&mut ctx, base, text, families(styles), script_settings);
shape_segment(&mut ctx, base, text, families(styles));
}
track_and_space(&mut ctx);
@ -728,6 +729,7 @@ struct ShapingContext<'a, 'v> {
features: Vec<rustybuzz::Feature>,
fallback: bool,
dir: Dir,
shift_settings: Option<ShiftSettings>,
}
/// Shape text with font fallback using the `families` iterator.
@ -736,7 +738,6 @@ fn shape_segment<'a>(
base: usize,
text: &str,
mut families: impl Iterator<Item = &'a FontFamily> + Clone,
shift_settings: Option<ShiftSettings>,
) {
// Don't try shaping newlines, tabs, or default ignorables.
if text
@ -804,7 +805,7 @@ fn shape_segment<'a>(
buffer.set_flags(BufferFlags::REMOVE_DEFAULT_IGNORABLES);
let (script_shift, script_compensation, scale) =
compute_synthesized_shift(ctx, text, &font, shift_settings);
compute_synthesized_shift(ctx, text, &font);
// Prepare the shape plan. This plan depends on direction, script, language,
// and features, but is independent from the text and can thus be memoized.
@ -941,13 +942,7 @@ fn shape_segment<'a>(
}
// Recursively shape the tofu sequence with the next family.
shape_segment(
ctx,
base + start,
&text[start..end],
families.clone(),
shift_settings,
);
shape_segment(ctx, base + start, &text[start..end], families.clone());
}
i += 1;
@ -969,9 +964,8 @@ fn compute_synthesized_shift(
ctx: &mut ShapingContext,
text: &str,
font: &Font,
settings: Option<ShiftSettings>,
) -> (Em, Em, Em) {
match settings {
match ctx.shift_settings {
None => (Em::zero(), Em::zero(), Em::one()),
Some(settings) => settings
.typographic