diff options
Diffstat (limited to 'helix-term/src/editor.rs')
| -rw-r--r-- | helix-term/src/editor.rs | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/helix-term/src/editor.rs b/helix-term/src/editor.rs index a3bc8b3b..4386834a 100644 --- a/helix-term/src/editor.rs +++ b/helix-term/src/editor.rs @@ -1,5 +1,5 @@ use clap::ArgMatches as Args; -use helix_core::{state::coords_at_pos, state::Mode, syntax::HighlightEvent, Range, State}; +use helix_core::{state::Mode, syntax::HighlightEvent, Range, State}; use helix_view::{commands, keymap, View}; use std::{ @@ -24,6 +24,8 @@ use crossterm::{ use tui::{backend::CrosstermBackend, buffer::Buffer as Surface, layout::Rect, style::Style}; +const TAB_WIDTH: usize = 4; + type Terminal = tui::Terminal<CrosstermBackend<std::io::Stdout>>; static EX: smol::Executor = smol::Executor::new(); @@ -85,10 +87,7 @@ impl Editor { // TODO: inefficient, should feed chunks.iter() to tree_sitter.parse_with(|offset, pos|) let source_code = view.state.doc().to_string(); - let last_line = std::cmp::min( - (view.first_line + viewport.height - 1) as usize, - view.state.doc().len_lines() - 1, - ); + let last_line = view.last_line(viewport); let range = { // calculate viewport byte ranges @@ -172,6 +171,8 @@ impl Editor { if line >= viewport.height { break 'outer; } + } else if grapheme == "\t" { + visual_x += (TAB_WIDTH as u16); } else { // Cow will prevent allocations if span contained in a single slice // which should really be the majority case @@ -281,12 +282,16 @@ impl Editor { // render the cursor let pos = view.state.selection().cursor(); - let coords = coords_at_pos(&view.state.doc().slice(..), pos); + + let pos = view + .screen_coords_at_pos(&view.state.doc().slice(..), pos, area) + .expect("Cursor is out of bounds."); + execute!( stdout, cursor::MoveTo( - coords.col as u16 + viewport.x, - coords.row as u16 - view.first_line + viewport.y, + pos.col as u16 + viewport.x, + pos.row as u16 - view.first_line + viewport.y, ) ); } |