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Compute style only once per source highlight event (#1966)

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During a single HighlightEvent::Source, the highlight spans do not
change and we can merge them into a single style at the beginning
of the event and use it instead of re-computing it for every grapheme
This commit is contained in:
Gokul Soumya 2022-04-08 06:12:57 +05:30 committed by GitHub
parent 31c468ab95
commit 420b5b8301
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 3 additions and 8 deletions
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11
helix-term/src/ui/editor.rs
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@ -343,6 +343,9 @@ impl EditorView {
// the rope, to allow cursor highlighting at the end
// of the rope.
let text = text.get_slice(start..end).unwrap_or_else(|| " ".into());
let style = spans
.iter()
.fold(text_style, |acc, span| acc.patch(theme.highlight(span.0)));
use helix_core::graphemes::{grapheme_width, RopeGraphemes};
@ -352,10 +355,6 @@ impl EditorView {
if LineEnding::from_rope_slice(&grapheme).is_some() {
if !out_of_bounds {
let style = spans.iter().fold(text_style, |acc, span| {
acc.patch(theme.highlight(span.0))
});
// we still want to render an empty cell with the style
surface.set_string(
viewport.x + visual_x - offset.col as u16,
@ -387,10 +386,6 @@ impl EditorView {
};
if !out_of_bounds {
let style = spans.iter().fold(text_style, |acc, span| {
acc.patch(theme.highlight(span.0))
});
// if we're offscreen just keep going until we hit a new line
surface.set_string(
viewport.x + visual_x - offset.col as u16,