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Add ui.gutter.selected option for themes (#3303)

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* add `ui.gutter.selected`

* add `ui.gutter`, `ui.gutter.selected` to docs
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ChrHorn 2022-10-03 16:44:45 +02:00 • committed by GitHub
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commit 589d17c758
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2
book/src/themes.md
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@ -219,6 +219,8 @@ These scopes are used for theming the editor interface.
| `ui.cursor.select` | |
| `ui.cursor.match` | Matching bracket etc. |
| `ui.cursor.primary` | Cursor with primary selection |
| `ui.gutter` | Gutter |
| `ui.gutter.selected` | Gutter for the line the cursor is on |
| `ui.linenr` | Line numbers |
| `ui.linenr.selected` | Line number for the line the cursor is on |
| `ui.statusline` | Statusline |

7
helix-term/src/ui/editor.rs
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@ -696,6 +696,7 @@ impl EditorView {
let mut offset = 0;
let gutter_style = theme.get("ui.gutter");
let gutter_selected_style = theme.get("ui.gutter.selected");
// avoid lots of small allocations by reusing a text buffer for each line
let mut text = String::with_capacity(8);
@ -708,6 +709,12 @@ impl EditorView {
let x = viewport.x + offset;
let y = viewport.y + i as u16;
let gutter_style = if selected {
gutter_selected_style
} else {
gutter_style
};
if let Some(style) = gutter(line, selected, &mut text) {
surface.set_stringn(x, y, &text, *width, gutter_style.patch(style));
} else {