feat: added rounded-corners option to draw rounded borders

book/src/editor.md

@@ -49,6 +49,7 @@ ### `[editor]` Section
 | `default-line-ending` | The line ending to use for new documents. Can be `native`, `lf`, `crlf`, `ff`, `cr` or `nel`. `native` uses the platform's native line ending (`crlf` on Windows, otherwise `lf`). | `native` |
 | `insert-final-newline` | Whether to automatically insert a trailing line-ending on write if missing | `true` |
 | `popup-border` | Draw border around `popup`, `menu`, `all`, or `none` | `none` |
+| `rounded-corners` | Set to `true` to draw rounded border corners | `false` |
 | `indent-heuristic` | How the indentation for a newly inserted line is computed: `simple` just copies the indentation level from the previous line, `tree-sitter` computes the indentation based on the syntax tree and `hybrid` combines both approaches. If the chosen heuristic is not available, a different one will be used as a fallback (the fallback order being `hybrid` -> `tree-sitter` -> `simple`). | `hybrid`
 | `jump-label-alphabet` | The characters that are used to generate two character jump labels. Characters at the start of the alphabet are used first. | `"abcdefghijklmnopqrstuvwxyz"`
 | `end-of-line-diagnostics` | Minimum severity of diagnostics to render at the end of the line. Set to `disable` to disable entirely. Refer to the setting about `inline-diagnostics` for more details | "disable"

helix-term/src/ui/completion.rs

@@ -9,7 +9,7 @@
     theme::{Modifier, Style},
     ViewId,
 };
-use tui::{buffer::Buffer as Surface, text::Span};
+use tui::{buffer::Buffer as Surface, text::Span, widgets::BorderType};
 
 use std::{borrow::Cow, sync::Arc};
 
@@ -531,7 +531,12 @@ fn render(&mut self, area: Rect, surface: &mut Surface, cx: &mut Context) {
 
         if cx.editor.popup_border() {
             use tui::widgets::{Block, Widget};
-            Widget::render(Block::bordered(), doc_area, surface);
+            let border_type = BorderType::new(cx.editor.config().rounded_corners);
+            Widget::render(
+                Block::bordered().border_type(border_type),
+                doc_area,
+                surface,
+            );
         }
 
         markdown_doc.render(doc_area, surface, cx);

helix-term/src/ui/info.rs

@@ -3,7 +3,7 @@
 use helix_view::info::Info;
 use tui::buffer::Buffer as Surface;
 use tui::text::Text;
-use tui::widgets::{Block, Paragraph, Widget};
+use tui::widgets::{Block, BorderType, Paragraph, Widget};
 
 impl Component for Info {
     fn render(&mut self, viewport: Rect, surface: &mut Surface, cx: &mut Context) {
@@ -23,9 +23,11 @@ fn render(&mut self, viewport: Rect, surface: &mut Surface, cx: &mut Context) {
         ));
         surface.clear_with(area, popup_style);
 
+        let border_type = BorderType::new(cx.editor.config().rounded_corners);
         let block = Block::bordered()
             .title(self.title.as_str())
-            .border_style(popup_style);
+            .border_style(popup_style)
+            .border_type(border_type);
 
         let margin = Margin::horizontal(1);
         let inner = block.inner(area).inner(margin);

helix-term/src/ui/picker.rs

@@ -655,12 +655,13 @@ fn render_picker(&mut self, area: Rect, surface: &mut Surface, cx: &mut Context)
         let background = cx.editor.theme.get("ui.background");
         surface.clear_with(area, background);
 
-        const BLOCK: Block<'_> = Block::bordered();
+        let border_type = BorderType::new(cx.editor.config().rounded_corners);
+        let block: Block<'_> = Block::bordered().border_type(border_type);
 
         // calculate the inner area inside the box
-        let inner = BLOCK.inner(area);
+        let inner = block.inner(area);
 
-        BLOCK.render(area, surface);
+        block.render(area, surface);
 
         // -- Render the input bar:
 
@@ -840,14 +841,15 @@ fn render_preview(&mut self, area: Rect, surface: &mut Surface, cx: &mut Context
         let text = cx.editor.theme.get("ui.text");
         surface.clear_with(area, background);
 
-        const BLOCK: Block<'_> = Block::bordered();
+        let border_type = BorderType::new(cx.editor.config().rounded_corners);
+        let block: Block<'_> = Block::bordered().border_type(border_type);
 
         // calculate the inner area inside the box
-        let inner = BLOCK.inner(area);
+        let inner = block.inner(area);
         // 1 column gap on either side
         let margin = Margin::horizontal(1);
         let inner = inner.inner(margin);
-        BLOCK.render(area, surface);
+        block.render(area, surface);
 
         if let Some((preview, range)) = self.get_preview(cx.editor) {
             let doc = match preview.document() {

helix-term/src/ui/popup.rs

@@ -5,7 +5,7 @@
 };
 use tui::{
     buffer::Buffer as Surface,
-    widgets::{Block, Widget},
+    widgets::{Block, BorderType, Widget},
 };
 
 use helix_core::Position;
@@ -323,8 +323,9 @@ fn render(&mut self, viewport: Rect, surface: &mut Surface, cx: &mut Context) {
 
         let mut inner = area;
         if render_borders {
+            let border_type = BorderType::new(cx.editor.config().rounded_corners);
             inner = area.inner(Margin::all(1));
-            Widget::render(Block::bordered(), area, surface);
+            Widget::render(Block::bordered().border_type(border_type), area, surface);
         }
         let border = usize::from(render_borders);
 

helix-term/src/ui/prompt.rs

@@ -8,7 +8,7 @@
 use std::sync::Arc;
 use std::{borrow::Cow, ops::RangeFrom};
 use tui::buffer::Buffer as Surface;
-use tui::widgets::{Block, Widget};
+use tui::widgets::{Block, BorderType, Widget};
 
 use helix_core::{
     unicode::segmentation::GraphemeCursor, unicode::width::UnicodeWidthStr, Position,
@@ -485,9 +485,11 @@ pub fn render_prompt(&self, area: Rect, surface: &mut Surface, cx: &mut Context)
             let background = theme.get("ui.help");
             surface.clear_with(area, background);
 
+            let border_type = BorderType::new(cx.editor.config().rounded_corners);
             let block = Block::bordered()
                 // .title(self.title.as_str())
-                .border_style(background);
+                .border_style(background)
+                .border_type(border_type);
 
             let inner = block.inner(area).inner(Margin::horizontal(1));
 

helix-tui/src/widgets/block.rs

@@ -17,6 +17,14 @@ pub enum BorderType {
 }
 
 impl BorderType {
+    pub fn new(rounded: bool) -> Self {
+        if rounded {
+            Self::Rounded
+        } else {
+            Self::default()
+        }
+    }
+
     pub fn line_symbols(border_type: Self) -> line::Set {
         match border_type {
             Self::Plain => line::NORMAL,

helix-view/src/editor.rs

@@ -333,6 +333,8 @@ pub struct Config {
     pub smart_tab: Option<SmartTabConfig>,
     /// Draw border around popups.
     pub popup_border: PopupBorderConfig,
+    /// Draw rounded border corners
+    pub rounded_corners: bool,
     /// Which indent heuristic to use when a new line is inserted
     #[serde(default)]
     pub indent_heuristic: IndentationHeuristic,
@@ -975,6 +977,7 @@ fn default() -> Self {
             insert_final_newline: true,
             smart_tab: Some(SmartTabConfig::default()),
             popup_border: PopupBorderConfig::None,
+            rounded_corners: false,
             indent_heuristic: IndentationHeuristic::default(),
             jump_label_alphabet: ('a'..='z').collect(),
             inline_diagnostics: InlineDiagnosticsConfig::default(),