leyoda/cosmic-edit
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Improvements for large files

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This commit is contained in:
Jeremy Soller 2023-11-02 10:02:07 -06:00
parent 90d2fead9c
commit c0e290f8a7
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GPG key ID: DCFCA852D3906975
2 changed files with 19 additions and 22 deletions
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29
src/text_box.rs
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@ -160,12 +160,11 @@ where
fn layout(&self, _renderer: &Renderer, limits: &layout::Limits) -> layout::Node {
let limits = limits.width(Length::Fill).height(Length::Fill);
//TODO: allow lazy shape
let mut editor = self.editor.lock().unwrap();
//TODO: set size?
editor
.borrow_with(&mut FONT_SYSTEM.lock().unwrap())
.buffer_mut()
.shape_until(i32::max_value());
.shape_as_needed();
let mut layout_lines = 0;
for line in editor.buffer().lines.iter() {
@ -296,19 +295,17 @@ where
let start_line = start_line_opt.unwrap_or(end_line);
let lines = editor.buffer().lines.len();
let start_y = (start_line * image_h as usize) / lines;
let end_y = (end_line * image_h as usize) / lines;
if end_y > start_y {
draw_rect(
buffer,
image_w,
image_h,
image_w - scrollbar_w,
start_y as i32,
scrollbar_w,
(end_y - start_y) as i32,
0x40FFFFFF,
);
}
let end_y = ((end_line * image_h as usize) / lines).max(start_y + 1);
draw_rect(
buffer,
image_w,
image_h,
image_w - scrollbar_w,
start_y as i32,
scrollbar_w,
end_y as i32 - start_y as i32,
0x40FFFFFF,
);
}
}