(f: &mut Frame, app: &mut App)
| 21 | } |
| 22 | |
| 23 | pub fn draw(f: &mut Frame, app: &mut App) { |
| 24 | let area = f.area(); |
| 25 | let colors = Colors::from_theme(&app.theme); |
| 26 | |
| 27 | let terminal_height = if app.show_terminal { 12 } else { 0 }; |
| 28 | let chunks = Layout::default() |
| 29 | .direction(Direction::Vertical) |
| 30 | .constraints([ |
| 31 | Constraint::Length(1), |
| 32 | Constraint::Min(1), |
| 33 | Constraint::Length(terminal_height), |
| 34 | Constraint::Length(1), |
| 35 | ]) |
| 36 | .split(area); |
| 37 | |
| 38 | tabs::draw_tabs(f, chunks[0], app, &colors); |
| 39 | |
| 40 | if let Some(file) = app.editor.files.get_mut(app.editor.current_file) { |
| 41 | let lang = file.lang; |
| 42 | let is_focused = app.focus == Focus::Editor; |
| 43 | let line_count = file.buffer.line_count(); |
| 44 | let (cursor_row, cursor_col) = file.buffer.cursor(); |
| 45 | let title = file.title(); |
| 46 | let is_home = file.path.is_none(); |
| 47 | let visible_height = chunks[1].height.saturating_sub(2) as usize; |
| 48 | |
| 49 | if !is_home { |
| 50 | let max_scroll = line_count.saturating_sub(visible_height.max(1)); |
| 51 | file.scroll_top = file.scroll_top.min(max_scroll); |
| 52 | |
| 53 | if visible_height > 0 { |
| 54 | if cursor_row < file.scroll_top { |
| 55 | file.scroll_top = cursor_row; |
| 56 | } else if cursor_row >= file.scroll_top + visible_height { |
| 57 | file.scroll_top = cursor_row - visible_height + 1; |
| 58 | } |
| 59 | } |
| 60 | } else { |
| 61 | file.scroll_top = 0; |
| 62 | } |
| 63 | |
| 64 | let scroll_row = file.scroll_top; |
| 65 | |
| 66 | let highlighted: Text<'static> = { |
| 67 | let selection = file.buffer.selection_range().map(|(s, e)| { |
| 68 | if s < e { (s, e) } else { (e, s) } |
| 69 | }); |
| 70 | |
| 71 | let start = scroll_row; |
| 72 | let end = (start + visible_height).min(file.buffer.line_count()); |
| 73 | let mut scratch = String::new(); |
| 74 | let mut lines = Vec::with_capacity(end.saturating_sub(start)); |
| 75 | for r in start..end { |
| 76 | file.buffer.line_text_into(r, &mut scratch); |
| 77 | let base_line = highlight_line(&scratch, lang); |
| 78 | let mut spans = Vec::with_capacity(base_line.spans.len()); |
| 79 | |
| 80 | let mut current_col = 0; |
no test coverage detected