WIP on rebuilding with extracted UI framework

zed/src/settings.rs

@@ -0,0 +1,30 @@
+use crate::watch;
+use anyhow::Result;
+use gpui::fonts::{FamilyId, FontCache};
+
+#[derive(Clone)]
+pub struct Settings {
+    pub buffer_font_family: FamilyId,
+    pub buffer_font_size: f32,
+    pub tab_size: usize,
+    pub ui_font_family: FamilyId,
+    pub ui_font_size: f32,
+}
+
+impl Settings {
+    pub fn new(font_cache: &FontCache) -> Result<Self> {
+        Ok(Self {
+            buffer_font_family: font_cache.load_family(&["Fira Code", "Monaco"])?,
+            buffer_font_size: 16.0,
+            tab_size: 4,
+            ui_font_family: font_cache.load_family(&["SF Pro Display"])?,
+            ui_font_size: 12.0,
+        })
+    }
+}
+
+pub fn channel(
+    font_cache: &FontCache,
+) -> Result<(watch::Sender<Settings>, watch::Receiver<Settings>)> {
+    Ok(watch::channel(Settings::new(font_cache)?))
+}