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Only apply attrs to range in syntect editor if it does not match default

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This commit is contained in:
Jeremy Soller 2023-12-14 09:10:09 -07:00
parent 19b4d8336e
commit c247e0527c
1 changed files with 55 additions and 34 deletions
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89
src/edit/syntect.rs
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@ -39,7 +39,7 @@ pub struct SyntaxEditor<'a> {
syntax: &'a SyntaxReference,
theme: &'a SyntaxTheme,
highlighter: Highlighter<'a>,
syntax_cache: Vec<(ParseState, HighlightState)>,
syntax_cache: Vec<(ParseState, ScopeStack)>,
}
impl<'a> SyntaxEditor<'a> {
@ -71,6 +71,20 @@ impl<'a> SyntaxEditor<'a> {
self.theme = theme;
self.highlighter = Highlighter::new(theme);
self.syntax_cache.clear();
// Reset attrs to match default foreground and no highlighting
for line in self.editor.buffer_mut().lines.iter_mut() {
let mut attrs = line.attrs_list().defaults();
if let Some(foreground) = self.theme.settings.foreground {
attrs = attrs.color(Color::rgba(
foreground.r,
foreground.g,
foreground.b,
foreground.a,
));
}
line.set_attrs_list(AttrsList::new(attrs));
}
}
true
@ -89,10 +103,20 @@ impl<'a> SyntaxEditor<'a> {
&mut self,
font_system: &mut FontSystem,
path: P,
attrs: crate::Attrs,
mut attrs: crate::Attrs,
) -> io::Result<()> {
let path = path.as_ref();
// Set attrs to match default foreground
if let Some(foreground) = self.theme.settings.foreground {
attrs = attrs.color(Color::rgba(
foreground.r,
foreground.g,
foreground.b,
foreground.a,
));
}
let text = fs::read_to_string(path)?;
self.editor
.buffer_mut()
@ -214,16 +238,13 @@ impl<'a> Edit for SyntaxEditor<'a> {
}
highlighted += 1;
let (mut parse_state, mut highlight_state) =
if line_i > 0 && line_i <= self.syntax_cache.len() {
self.syntax_cache[line_i - 1].clone()
} else {
(
ParseState::new(self.syntax),
HighlightState::new(&self.highlighter, ScopeStack::new()),
)
};
let (mut parse_state, scope_stack) = if line_i > 0 && line_i <= self.syntax_cache.len()
{
self.syntax_cache[line_i - 1].clone()
} else {
(ParseState::new(self.syntax), ScopeStack::new())
};
let mut highlight_state = HighlightState::new(&self.highlighter, scope_stack);
let ops = parse_state
.parse_line(line.text(), &self.syntax_system.syntax_set)
.expect("failed to parse syntax");
@ -237,27 +258,27 @@ impl<'a> Edit for SyntaxEditor<'a> {
let attrs = line.attrs_list().defaults();
let mut attrs_list = AttrsList::new(attrs);
for (style, _, range) in ranges {
attrs_list.add_span(
range,
attrs
.color(Color::rgba(
style.foreground.r,
style.foreground.g,
style.foreground.b,
style.foreground.a,
))
//TODO: background
.style(if style.font_style.contains(FontStyle::ITALIC) {
Style::Italic
} else {
Style::Normal
})
.weight(if style.font_style.contains(FontStyle::BOLD) {
Weight::BOLD
} else {
Weight::NORMAL
}), //TODO: underline
);
let span_attrs = attrs
.color(Color::rgba(
style.foreground.r,
style.foreground.g,
style.foreground.b,
style.foreground.a,
))
//TODO: background
.style(if style.font_style.contains(FontStyle::ITALIC) {
Style::Italic
} else {
Style::Normal
})
.weight(if style.font_style.contains(FontStyle::BOLD) {
Weight::BOLD
} else {
Weight::NORMAL
}); //TODO: underline
if span_attrs != attrs {
attrs_list.add_span(range, span_attrs);
}
}
// Update line attributes. This operation only resets if the line changes
@ -274,7 +295,7 @@ impl<'a> Edit for SyntaxEditor<'a> {
}
}
let cache_item = (parse_state.clone(), highlight_state.clone());
let cache_item = (parse_state.clone(), highlight_state.path.clone());
if line_i < self.syntax_cache.len() {
if self.syntax_cache[line_i] != cache_item {
self.syntax_cache[line_i] = cache_item;