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Add cursorcolumn #4084

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Oct 8, 2022
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Merged

Add cursorcolumn #4084

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67be9b5
Implement cursorcolumn
A-Walrus Oct 3, 2022
dab44d9
Add documentation
A-Walrus Oct 3, 2022
349695a
Separate column style from line with fallback
A-Walrus Oct 5, 2022
11a3d92
Fallback to cursorcolumn first
A-Walrus Oct 6, 2022
be40aee
Switch to non-fallback try_get_exact
A-Walrus Oct 6, 2022
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1 change: 1 addition & 0 deletions book/src/configuration.md
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Original file line number Diff line number Diff line change
Expand Up @@ -45,6 +45,7 @@ on unix operating systems.
| `shell` | Shell to use when running external commands. | Unix: `["sh", "-c"]`<br/>Windows: `["cmd", "/C"]` |
| `line-number` | Line number display: `absolute` simply shows each line's number, while `relative` shows the distance from the current line. When unfocused or in insert mode, `relative` will still show absolute line numbers. | `absolute` |
| `cursorline` | Highlight all lines with a cursor. | `false` |
| `cursorcolumn` | Highlight all columns with a cursor. | `false` |
| `gutters` | Gutters to display: Available are `diagnostics` and `line-numbers` and `spacer`, note that `diagnostics` also includes other features like breakpoints, 1-width padding will be inserted if gutters is non-empty | `["diagnostics", "line-numbers"]` |
| `auto-completion` | Enable automatic pop up of auto-completion. | `true` |
| `auto-format` | Enable automatic formatting on save. | `true` |
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92 changes: 47 additions & 45 deletions book/src/themes.md
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Expand Up @@ -210,51 +210,53 @@ These scopes are used for theming the editor interface.
- `hover` - for hover popup ui


| Key | Notes |
| --- | --- |
| `ui.background` | |
| `ui.background.separator` | Picker separator below input line |
| `ui.cursor` | |
| `ui.cursor.insert` | |
| `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 |
| `ui.statusline.inactive` | Statusline (unfocused document) |
| `ui.statusline.normal` | Statusline mode during normal mode ([only if `editor.color-modes` is enabled][editor-section]) |
| `ui.statusline.insert` | Statusline mode during insert mode ([only if `editor.color-modes` is enabled][editor-section]) |
| `ui.statusline.select` | Statusline mode during select mode ([only if `editor.color-modes` is enabled][editor-section]) |
| `ui.statusline.separator` | Separator character in statusline |
| `ui.popup` | Documentation popups (e.g space-k) |
| `ui.popup.info` | Prompt for multiple key options |
| `ui.window` | Border lines separating splits |
| `ui.help` | Description box for commands |
| `ui.text` | Command prompts, popup text, etc. |
| `ui.text.focus` | |
| `ui.text.info` | The key: command text in `ui.popup.info` boxes |
| `ui.virtual.ruler` | Ruler columns (see the [`editor.rulers` config][editor-section])|
| `ui.virtual.whitespace` | Visible white-space characters |
| `ui.virtual.indent-guide` | Vertical indent width guides |
| `ui.menu` | Code and command completion menus |
| `ui.menu.selected` | Selected autocomplete item |
| `ui.menu.scroll` | `fg` sets thumb color, `bg` sets track color of scrollbar |
| `ui.selection` | For selections in the editing area |
| `ui.selection.primary` | |
| `ui.cursorline.primary` | The line of the primary cursor |
| `ui.cursorline.secondary` | The lines of any other cursors |
| `warning` | Diagnostics warning (gutter) |
| `error` | Diagnostics error (gutter) |
| `info` | Diagnostics info (gutter) |
| `hint` | Diagnostics hint (gutter) |
| `diagnostic` | Diagnostics fallback style (editing area) |
| `diagnostic.hint` | Diagnostics hint (editing area) |
| `diagnostic.info` | Diagnostics info (editing area) |
| `diagnostic.warning` | Diagnostics warning (editing area) |
| `diagnostic.error` | Diagnostics error (editing area) |
| Key | Notes |
| --- | --- |
| `ui.background` | |
| `ui.background.separator` | Picker separator below input line |
| `ui.cursor` | |
| `ui.cursor.insert` | |
| `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 |
| `ui.statusline.inactive` | Statusline (unfocused document) |
| `ui.statusline.normal` | Statusline mode during normal mode ([only if `editor.color-modes` is enabled][editor-section]) |
| `ui.statusline.insert` | Statusline mode during insert mode ([only if `editor.color-modes` is enabled][editor-section]) |
| `ui.statusline.select` | Statusline mode during select mode ([only if `editor.color-modes` is enabled][editor-section]) |
| `ui.statusline.separator` | Separator character in statusline |
| `ui.popup` | Documentation popups (e.g space-k) |
| `ui.popup.info` | Prompt for multiple key options |
| `ui.window` | Border lines separating splits |
| `ui.help` | Description box for commands |
| `ui.text` | Command prompts, popup text, etc. |
| `ui.text.focus` | |
| `ui.text.info` | The key: command text in `ui.popup.info` boxes |
| `ui.virtual.ruler` | Ruler columns (see the [`editor.rulers` config][editor-section]) |
| `ui.virtual.whitespace` | Visible white-space characters |
| `ui.virtual.indent-guide` | Vertical indent width guides |
| `ui.menu` | Code and command completion menus |
| `ui.menu.selected` | Selected autocomplete item |
| `ui.menu.scroll` | `fg` sets thumb color, `bg` sets track color of scrollbar |
| `ui.selection` | For selections in the editing area |
| `ui.selection.primary` | |
| `ui.cursorline.primary` | The line of the primary cursor ([if cursorline is enabled][editor-section]) |
| `ui.cursorline.secondary` | The lines of any other cursors ([if cursorline is enabled][editor-section]) |
| `ui.cursorcolumn.primary` | The column of the primary cursor ([if cursorcolumn is enabled][editor-section]) |
| `ui.cursorcolumn.secondary` | The columns of any other cursors ([if cursorcolumn is enabled][editor-section]) |
| `warning` | Diagnostics warning (gutter) |
| `error` | Diagnostics error (gutter) |
| `info` | Diagnostics info (gutter) |
| `hint` | Diagnostics hint (gutter) |
| `diagnostic` | Diagnostics fallback style (editing area) |
| `diagnostic.hint` | Diagnostics hint (editing area) |
| `diagnostic.info` | Diagnostics info (editing area) |
| `diagnostic.warning` | Diagnostics warning (editing area) |
| `diagnostic.error` | Diagnostics error (editing area) |

You can check compliance to spec with

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50 changes: 49 additions & 1 deletion helix-term/src/ui/editor.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -13,7 +13,7 @@ use helix_core::{
movement::Direction,
syntax::{self, HighlightEvent},
unicode::width::UnicodeWidthStr,
LineEnding, Position, Range, Selection, Transaction,
visual_coords_at_pos, LineEnding, Position, Range, Selection, Transaction,
};
use helix_view::{
document::{Mode, SCRATCH_BUFFER_NAME},
Expand Down Expand Up @@ -118,6 +118,9 @@ impl EditorView {
if is_focused && editor.config().cursorline {
Self::highlight_cursorline(doc, view, surface, theme);
}
if is_focused && editor.config().cursorcolumn {
Self::highlight_cursorcolumn(doc, view, surface, theme);
}

let highlights = Self::doc_syntax_highlights(doc, view.offset, inner.height, theme);
let highlights = syntax::merge(highlights, Self::doc_diagnostics_highlights(doc, theme));
Expand Down Expand Up @@ -830,6 +833,51 @@ impl EditorView {
}
}

/// Apply the highlighting on the columns where a cursor is active
pub fn highlight_cursorcolumn(
doc: &Document,
view: &View,
surface: &mut Surface,
theme: &Theme,
) {
let text = doc.text().slice(..);

let primary_style = theme
.try_get("ui.cursorcolumn.primary")
.or_else(|| theme.try_get("ui.cursorcolumn"))
.unwrap_or_else(|| theme.get("ui.cursorline.primary"));
let secondary_style = theme
.try_get("ui.cursorcolumn.secondary")
.or_else(|| theme.try_get("ui.cursorcolumn"))
.unwrap_or_else(|| theme.get("ui.cursorline.secondary"));
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let inner_area = view.inner_area();
let offset = view.offset.col;

let selection = doc.selection(view.id);
let primary = selection.primary();
for range in selection.iter() {
let is_primary = primary == *range;

let Position { row: _, col } =
visual_coords_at_pos(text, range.cursor(text), doc.tab_width());
// if the cursor is horizontally in the view
if col >= offset && inner_area.width > (col - offset) as u16 {
let area = Rect::new(
inner_area.x + (col - offset) as u16,
view.area.y,
1,
view.area.height,
);
if is_primary {
surface.set_style(area, primary_style)
} else {
surface.set_style(area, secondary_style)
}
}
}
}

/// Handle events by looking them up in `self.keymaps`. Returns None
/// if event was handled (a command was executed or a subkeymap was
/// activated). Only KeymapResult::{NotFound, Cancelled} is returned
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3 changes: 3 additions & 0 deletions helix-view/src/editor.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -124,6 +124,8 @@ pub struct Config {
pub line_number: LineNumber,
/// Highlight the lines cursors are currently on. Defaults to false.
pub cursorline: bool,
/// Highlight the columns cursors are currently on. Defaults to false.
pub cursorcolumn: bool,
/// Gutters. Default ["diagnostics", "line-numbers"]
pub gutters: Vec<GutterType>,
/// Middle click paste support. Defaults to true.
Expand Down Expand Up @@ -582,6 +584,7 @@ impl Default for Config {
},
line_number: LineNumber::Absolute,
cursorline: false,
cursorcolumn: false,
gutters: vec![GutterType::Diagnostics, GutterType::LineNumbers],
middle_click_paste: true,
auto_pairs: AutoPairConfig::default(),
Expand Down