translate for pre language

src/main/java/org/cubewhy/celestial/gui/Language.java

@@ -0,0 +1,31 @@
+/*
+ * Celestial Launcher <me@lunarclient.top>
+ * License under GPLv3
+ * Do NOT remove this note if you want to copy this file.
+ */
+
+package org.cubewhy.celestial.gui;
+
+import lombok.Getter;
+
+@Getter
+public enum Language {
+    ENGLISH("English", "en"),
+    CHINESE("简体中文", "zh"),
+    JAPANESE("日本語", "ja"),
+    KOREAN("한국인", "ko");
+
+    private final String view;
+    private final String code;
+
+    Language(String view, String code) {
+        this.view = view;
+        this.code = code;
+    }
+
+
+    @Override
+    public String toString() {
+        return this.code;
+    }
+}

src/main/java/org/cubewhy/celestial/gui/pages/GuiSettings.java

@@ -7,6 +7,7 @@
 import org.apache.commons.io.FileUtils;
 import org.cubewhy.celestial.game.addon.LunarCNMod;
 import org.cubewhy.celestial.game.addon.WeaveMod;
+import org.cubewhy.celestial.gui.Language;
 import org.cubewhy.celestial.gui.dialogs.ArgsConfigDialog;
 import org.cubewhy.celestial.gui.layouts.VerticalFlowLayout;
 import org.cubewhy.celestial.utils.GuiUtils;
@@ -170,7 +171,7 @@ private void initGui() {
         // language
         JPanel p6 = new JPanel();
         p6.add(new JLabel(f.getString("gui.settings.launcher.language")));
-        p6.add(getAutoSaveComboBox(config.getConfig(), "language", List.of(new String[]{"zh", "en", "ja", "ko"})));
+        p6.add(getAutoSaveComboBox(config.getConfig(), "language", List.of((Language[]) Language.values())));
         panelLauncher.add(p6);
         // max threads
         JPanel p7 = new JPanel();
@@ -388,15 +389,22 @@ private void addUnclaimed(JPanel basePanel, @NotNull JsonObject json) {
         }
     }
 
-    private @NotNull JComboBox<String> getAutoSaveComboBox(JsonObject json, String key, @NotNull List<String> items) {
-        JComboBox<String> cb = new JComboBox<>();
-        for (String item : items) {
-            cb.addItem(item);
+    private @NotNull JComboBox<?> getAutoSaveComboBox(JsonObject json, String key, @NotNull List<?> items) {
+        JComboBox<Object> cb = new JComboBox<>();
+        for (Object item : items) {
+            if (item instanceof Language) {
+                cb.addItem(((Language) item).getView() + "/" + ((Language) item).getCode());
+            } else {
+                cb.addItem(item);
+            }
         }
         cb.setSelectedItem(json.get(key).getAsString());
         cb.addActionListener((e) -> {
-            JComboBox<String> source = (JComboBox<String>) e.getSource();
-            String v = (String) source.getSelectedItem();
+            JComboBox<Object> source = (JComboBox<Object>) e.getSource();
+            if (source.getSelectedItem() == null) {
+                return;
+            }
+            String v = source.getSelectedItem().toString();
             json.addProperty(key, v);
             config.save();
         });