diff options
Diffstat (limited to 'helix-term/src')
| -rw-r--r-- | helix-term/src/editor.rs | 32 |
1 files changed, 30 insertions, 2 deletions
diff --git a/helix-term/src/editor.rs b/helix-term/src/editor.rs index 24e62306..131c285e 100644 --- a/helix-term/src/editor.rs +++ b/helix-term/src/editor.rs @@ -1,8 +1,9 @@ use crate::Args; -use helix_core::{state::coords_at_pos, state::Mode, syntax::HighlightEvent, State}; +use helix_core::{state::coords_at_pos, state::Mode, syntax::HighlightEvent, Range, State}; use helix_view::{commands, keymap, View}; use std::{ + borrow::Cow, io::{self, stdout, Write}, path::PathBuf, time::Duration, @@ -120,6 +121,16 @@ impl Editor { let mut visual_x = 0; let mut line = 0u16; + let visible_selections: Vec<Range> = view + .state + .selection() + .ranges() + .iter() + // TODO: limit selection to one in viewport + .filter(|range| !range.is_empty()) // && range.overlaps(&Range::new(start, end + 1)) + .copied() + .collect(); + 'outer: for event in highlights { match event.unwrap() { HighlightEvent::HighlightStart(span) => { @@ -149,6 +160,8 @@ impl Editor { // way if only the selection/cursor changes we can copy from cache // and paint the new cursor. + let mut char_index = start; + // iterate over range char by char for grapheme in RopeGraphemes::new(&text) { // TODO: track current char_index @@ -164,8 +177,21 @@ impl Editor { } else { // Cow will prevent allocations if span contained in a single slice // which should really be the majority case - let grapheme = std::borrow::Cow::from(grapheme); + let grapheme = Cow::from(grapheme); let width = grapheme_width(&grapheme) as u16; + + let style = if visible_selections + .iter() + .any(|range| range.contains(char_index)) + { + // cedar + style.clone().bg(Color::Rgb(128, 47, 0)) + } else { + style + }; + + // TODO: paint cursor heads except primary + self.surface.set_string( offset + visual_x, line, @@ -176,6 +202,8 @@ impl Editor { visual_x += width; } // if grapheme == "\t" + + char_index += 1; } } } |