fix: load system Chinese font

src/gui.rs

@@ -1,10 +1,11 @@
 use eframe::{NativeOptions, run_native};
-use egui::*;
+use egui::{FontDefinitions, FontFamily, FontData};
 use crate::api::ProxmoxClient;
 use std::sync::{Arc, RwLock, Mutex};
 use dotenv::dotenv;
 use std::env;
 use std::thread;
+use std::collections::BTreeMap;
 
 pub type SharedState = Arc<RwLock<AppState>>;
 
@@ -68,21 +69,39 @@ pub fn gui_run() {
         ..Default::default()
     };
     
-    run_native("Proxmox VM 控制器", options, Box::new(|cc| {
-        set_font(&cc.egui_ctx);
+    run_native("Proxmox VM Controller", options, Box::new(|cc| {
+        cc.egui_ctx.set_fonts(load_font_definitions());
         Ok(Box::new(App::new()))
     })).unwrap();
 }
 
-fn set_font(ctx: &egui::Context) {
-    let mut style = (*ctx.style()).clone();
-    let font_family = FontFamily::Name("Microsoft YaHei".into());
-    style.text_styles = [
-        (TextStyle::Heading, FontId::new(18.0, font_family.clone())),
-        (TextStyle::Body, FontId::new(14.0, font_family.clone())),
-        (TextStyle::Button, FontId::new(14.0, font_family.clone())),
-    ].into();
-    ctx.set_style(style);
+fn load_font_definitions() -> FontDefinitions {
+    let font_paths = [
+        r"C:\Windows\Fonts\msyh.ttc",
+        r"C:\Windows\Fonts\msyh.ttf",
+        r"C:\Windows\Fonts\simhei.ttf",
+    ];
+    
+    let mut font_data: BTreeMap<String, FontData> = BTreeMap::new();
+    let mut loaded_name = String::new();
+    
+    for path in font_paths {
+        if let Ok(data) = std::fs::read(path) {
+            let name = if path.contains("msyh") { "msyh" } else { "simhei" };
+            loaded_name = name.to_owned();
+            font_data.insert(name.to_owned(), FontData::from_owned(data));
+            break;
+        }
+    }
+    
+    let mut fonts: FontDefinitions = Default::default();
+    if !loaded_name.is_empty() {
+        fonts.font_data = font_data;
+        fonts.families.entry(FontFamily::Proportional).or_default().insert(0, loaded_name.clone());
+        fonts.families.entry(FontFamily::Monospace).or_default().insert(0, loaded_name);
+    }
+    
+    fonts
 }
 
 struct App {