1use anyhow::Result;
 2use gpui::font_cache::{FamilyId, FontCache};
 3use postage::watch;
 4use std::sync::Arc;
 5use theme::{Theme, ThemeRegistry, DEFAULT_THEME_NAME};
 6
 7#[derive(Clone)]
 8pub struct Settings {
 9    pub buffer_font_family: FamilyId,
10    pub buffer_font_size: f32,
11    pub tab_size: usize,
12    pub theme: Arc<Theme>,
13}
14
15impl Settings {
16    pub fn new(
17        buffer_font_family: &str,
18        font_cache: &FontCache,
19        theme: Arc<Theme>,
20    ) -> Result<Self> {
21        Ok(Self {
22            buffer_font_family: font_cache.load_family(&[buffer_font_family])?,
23            buffer_font_size: 16.,
24            tab_size: 4,
25            theme,
26        })
27    }
28
29    pub fn with_tab_size(mut self, tab_size: usize) -> Self {
30        self.tab_size = tab_size;
31        self
32    }
33}
34
35pub fn channel(
36    buffer_font_family: &str,
37    font_cache: &FontCache,
38    themes: &ThemeRegistry,
39) -> Result<(watch::Sender<Settings>, watch::Receiver<Settings>)> {
40    let theme = match themes.get(DEFAULT_THEME_NAME) {
41        Ok(theme) => theme,
42        Err(err) => {
43            panic!("failed to deserialize default theme: {:?}", err)
44        }
45    };
46    Ok(watch::channel_with(Settings::new(
47        buffer_font_family,
48        font_cache,
49        theme,
50    )?))
51}