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ui: Highlight line ranges in the preview

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This commit is contained in:
Blaž Hrastnik 2021-08-24 13:21:06 +09:00
parent 490125f008
commit a5c3c6c6a9
2 changed files with 28 additions and 13 deletions
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12
helix-term/src/commands.rs
View file

@ -2314,7 +2314,7 @@ fn buffer_picker(cx: &mut Context) {
.selection(view_id)
.primary()
.cursor_line(doc.text().slice(..));
Some((path.clone()?, Some(line)))
Some((path.clone()?, Some((line, line))))
},
);
cx.push_layer(Box::new(picker));
@ -2387,7 +2387,10 @@ fn symbol_picker(cx: &mut Context) {
},
move |_editor, symbol| {
let path = symbol.location.uri.to_file_path().unwrap();
let line = Some(symbol.location.range.start.line as usize);
let line = Some((
symbol.location.range.start.line as usize,
symbol.location.range.end.line as usize,
));
Some((path, line))
},
);
@ -2820,7 +2823,10 @@ fn goto_impl(
},
|_editor, location| {
let path = location.uri.to_file_path().unwrap();
let line = Some(location.range.start.line as usize);
let line = Some((
location.range.start.line as usize,
location.range.end.line as usize,
));
Some((path, line))
},
);

29
helix-term/src/ui/picker.rs
View file

@ -26,7 +26,7 @@ use helix_view::{
pub const MIN_SCREEN_WIDTH_FOR_PREVIEW: u16 = 80;
/// File path and line number (used to align and highlight a line)
type FileLocation = (PathBuf, Option<usize>);
type FileLocation = (PathBuf, Option<(usize, usize)>);
pub struct FilePicker<T> {
picker: Picker<T>,
@ -113,14 +113,17 @@ impl<T: 'static> Component for FilePicker<T> {
block.render(preview_area, surface);
if let Some((doc, line)) = self.current_file(cx.editor).and_then(|(path, line)| {
if let Some((doc, line)) = self.current_file(cx.editor).and_then(|(path, range)| {
cx.editor
.document_by_path(&path)
.or_else(|| self.preview_cache.get(&path))
.zip(Some(line))
.zip(Some(range))
}) {
// align to middle
let first_line = line.unwrap_or(0).saturating_sub(inner.height as usize / 2);
let first_line = line
.map(|(start, _)| start)
.unwrap_or(0)
.saturating_sub(inner.height as usize / 2);
let offset = Position::new(first_line, 0);
let highlights = EditorView::doc_syntax_highlights(
@ -140,12 +143,18 @@ impl<T: 'static> Component for FilePicker<T> {
);
// highlight the line
if let Some(line) = line {
for x in inner.left()..inner.right() {
surface
.get_mut(x, inner.y + line.saturating_sub(first_line) as u16)
.set_style(cx.editor.theme.get("ui.selection"));
}
if let Some((start, end)) = line {
let offset = start.saturating_sub(first_line) as u16;
surface.set_style(
Rect::new(
inner.x,
inner.y + offset,
inner.width,
(end.saturating_sub(start) as u16 + 1)
.min(inner.height.saturating_sub(offset)),
),
cx.editor.theme.get("ui.selection"),
);
}
}
}