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Fix tab highlight when tab is partially visible (#3313)

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* Fix tab highlight when tab is partially visible

* Make it style based, and not truncation based

Dealing with truncating is a mess, especially when it comes to wide
unicode graphemes. This way it should work no matter what.

* Inline style calculation into branches
This commit is contained in:
A-Walrus 2022-08-06 18:46:50 +03:00 committed by GitHub
parent fdd8bbf16b
commit c00b8f7ad7
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1 changed files with 19 additions and 0 deletions
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19
helix-term/src/ui/editor.rs
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@ -529,6 +529,8 @@ impl EditorView {
(grapheme.as_ref(), width)
};
let cut_off_start = offset.col.saturating_sub(visual_x as usize);
if !out_of_bounds {
// if we're offscreen just keep going until we hit a new line
surface.set_string(
@ -541,7 +543,24 @@ impl EditorView {
style
},
);
} else if cut_off_start != 0 && cut_off_start < width {
// partially on screen
let rect = Rect::new(
viewport.x as u16,
viewport.y + line,
(width - cut_off_start) as u16,
1,
);
surface.set_style(
rect,
if is_whitespace {
style.patch(whitespace_style)
} else {
style
},
);
}
if is_in_indent_area && !(grapheme == " " || grapheme == "\t") {
draw_indent_guides(visual_x, line, surface);
is_in_indent_area = false;