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Fix math.stretch not working vertically with attachments (#5069)

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Max 2024-10-01 07:59:31 +00:00 committed by GitHub
parent 1a24b29d86
commit 75f646c975
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5 changed files with 16 additions and 3 deletions
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8
crates/typst/src/math/stretch.rs
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@ -73,9 +73,15 @@ pub(super) fn stretch_fragment(
_ => return,
};
let Some(axis) = axis.or_else(|| stretch_axis(ctx, &glyph)) else {
// Return if we attempt to stretch along an axis which isn't stretchable,
// so that the original fragment isn't modified.
let Some(stretch_axis) = stretch_axis(ctx, &glyph) else {
return;
};
let axis = axis.unwrap_or(stretch_axis);
if axis != stretch_axis {
return;
}
let relative_to_size = relative_to.unwrap_or_else(|| fragment.size().get(axis));

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tests/ref/issue-4188-lr-corner-brackets.png
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tests/ref/math-stretch-attach.png → tests/ref/math-stretch-horizontal-attach.png
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tests/ref/math-stretch-vertical-attach.png Normal file
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11
tests/suite/math/stretch.typ
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@ -13,8 +13,8 @@ $ H stretch(=)^"define" U + p V \
f : X stretch(arrow.hook, size: #150%)_"injective" Y \
V stretch(->, size: #(100% + 1.5em))^("surjection") ZZ $
--- math-stretch-attach ---
// Test stretch interactions with attachments.
--- math-stretch-horizontal-attach ---
// Test horizontal stretch interactions with attachments.
#set page(width: auto)
$stretch(stretch(=, size: #4em))_A$
@ -28,6 +28,13 @@ $ P = Q
U stretch(equiv)^(forall i)_"Chern-Weil" V
stretch(equiv, size: #(120% + 2mm))^(forall i)_"Chern-Weil" W $
--- math-stretch-vertical-attach ---
// Test vertical stretch interactions with attachments.
$arrow.t$
$stretch(arrow.t)^"map"$
$stretch(arrow.t, size: #2em)^"map"$
$stretch(arrow.t, size: #200%)^"map"$
--- math-stretch-horizontal ---
// Test stretching along horizontal axis.
#let ext(sym) = math.stretch(sym, size: 2em)