feat(i18n): 添加多语言支持功能

- 新增国际化系统，支持中英文切换
- 添加语言选择对话框和语言切换按钮回调
- 扩展配置系统以支持语言设置存储
- 创建语言文件目录结构和占位文件
- 更新主窗口支持UI文本动态刷新

src/controller/callbacks.c

@@ -9,8 +9,10 @@
 #include "utils/error_code.h"
 #include "utils/safe_string.h"
 #include "utils/logger.h"
+#include "utils/i18n.h"
 #include "ui/ui_utils.h"
 #include "ui/dialogs.h"
+#include "ui/main_window.h"
 #include <string.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -574,6 +576,15 @@ void load_all_paths(void)
         IupSetAttribute(lbl_status, "TITLE", lua_config_get_string("status", "loaded"));
 }
 
+// 按钮回调：语言切换
+int btn_lang_cb(Ihandle *self)
+{
+    Ihandle *dlg = IupGetDialog(self);
+    language_select_dialog();
+    refresh_main_window_ui(dlg);
+    return IUP_DEFAULT;
+}
+
 // 按钮回调：帮助
 int btn_help_cb(Ihandle *self)
 {

src/core/lua_config.c

@@ -244,4 +244,39 @@ int lua_config_reload(void)
 int lua_config_is_loaded(void)
 {
     return G_loaded;
+}
+
+int lua_config_set_string(const char *section, const char *key, const char *value)
+{
+    if (section == NULL || key == NULL || value == NULL)
+    {
+        return -1;
+    }
+
+    if (G_L == NULL)
+    {
+        return -1;
+    }
+
+    lua_getglobal(G_L, "config");
+    if (!lua_istable(G_L, -1))
+    {
+        lua_settop(G_L, 0);
+        return -1;
+    }
+
+    lua_getfield(G_L, -1, section);
+    if (!lua_istable(G_L, -1))
+    {
+        lua_pop(G_L, 1);
+        lua_createtable(G_L, 0, 4);
+        lua_setfield(G_L, -2, section);
+        lua_getfield(G_L, -1, section);
+    }
+
+    lua_pushstring(G_L, value);
+    lua_setfield(G_L, -2, key);
+    lua_settop(G_L, 0);
+
+    return 0;
 }

src/main.c

@@ -3,11 +3,13 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <wchar.h>
+#include <libintl.h>
 #include "core/app_context.h"
 #include "core/lua_config.h"
 #include "utils/string_ext.h"
 #include "utils/os_env.h"
 #include "utils/logger.h"
+#include "utils/i18n.h"
 #include "controller/callbacks.h"
 #include "ui/main_window.h"
 
@@ -46,11 +48,14 @@ int main(int argc, char **argv)
 
     if (lua_config_init() != 0)
     {
-        IupMessage("警告", "Lua 配置系统初始化失败，将使用默认值");
+        IupMessage(_("Warning"), "Lua 配置系统初始化失败，将使用默认值");
     }
 
     log_info("Lua config initialized");
 
+    // 初始化国际化系统
+    i18n_init(NULL);
+
     // 在管理员模式下，解决无法拖拽文件到列表框的问题 (UIPI)
     // 需要加载 User32.dll 获取 ChangeWindowMessageFilter 函数
     HMODULE hUser32 = LoadLibraryW(L"user32.dll");
@@ -76,7 +81,7 @@ int main(int argc, char **argv)
     AppContext *ctx = create_app_context();
     if (!ctx)
     {
-        IupMessage("错误", "无法分配内存创建应用上下文");
+        IupMessage(_("Error"), "无法分配内存创建应用上下文");
         IupClose();
         return 1;
     }
@@ -91,11 +96,11 @@ int main(int argc, char **argv)
     // 检查管理员权限
     if (!check_admin())
     {
-        IupMessage("警告", lua_config_get_string("status", "admin_warning"));
+        IupMessage(_("Warning"), _(lua_config_get_string("status", "admin_warning")));
 
         Ihandle *lbl_status = IupGetDialogChild(dlg, "LBL_STATUS");
         if (lbl_status)
-            IupSetAttribute(lbl_status, "TITLE", lua_config_get_string("status", "readonly"));
+            IupSetAttribute(lbl_status, "TITLE", _(lua_config_get_string("status", "readonly")));
 
         Ihandle *btn_new = IupGetDialogChild(dlg, "BTN_NEW");
         Ihandle *btn_edit = IupGetDialogChild(dlg, "BTN_EDIT");

src/ui/dialogs.c

@@ -1,6 +1,7 @@
 #include "ui/dialogs.h"
 #include "core/lua_config.h"
 #include "utils/safe_string.h"
+#include "utils/i18n.h"
 #include <iup.h>
 #include <string.h>
 
@@ -26,7 +27,7 @@ int custom_input_dialog(const char *title, const char *label_text, char *buffer,
     Ihandle *text = IupText(NULL);
     IupSetAttribute(text, "VALUE", buffer);
     IupSetAttribute(text, "EXPAND", "HORIZONTAL");
-    IupSetAttribute(text, "RASTERSIZE", "500x");
+    IupSetAttribute(text, "RASTERSIZE", lua_config_get_string("input_dialog", "text_size"));
     IupSetAttribute(text, "NAME", "INPUT_TEXT");
 
     Ihandle *btn_ok = IupButton(lua_config_get_string("button", "ok"), NULL);
@@ -42,8 +43,8 @@ int custom_input_dialog(const char *title, const char *label_text, char *buffer,
         text,
         IupHbox(IupFill(), btn_ok, btn_cancel, NULL),
         NULL);
-    IupSetAttribute(vbox, "MARGIN", "15x15");
-    IupSetAttribute(vbox, "GAP", "10");
+    IupSetAttribute(vbox, "MARGIN", lua_config_get_string("input_dialog", "margin"));
+    IupSetAttribute(vbox, "GAP", lua_config_get_string("input_dialog", "gap"));
 
     Ihandle *dlg = IupDialog(vbox);
     IupSetAttribute(dlg, "TITLE", title);
@@ -66,6 +67,61 @@ int custom_input_dialog(const char *title, const char *label_text, char *buffer,
         }
     }
 
+    IupDestroy(dlg);
+    return result;
+}
+
+// 语言选择对话框
+int language_select_dialog(void)
+{
+    const char *current_lang = i18n_get_current_language();
+
+    Ihandle *list = IupList(NULL);
+    IupSetAttribute(list, "NAME", "LANG_LIST");
+    IupSetAttribute(list, "DROPDOWN", "YES");
+    IupSetAttribute(list, "VALUE", (strcmp(current_lang, "zh_CN") == 0) ? "1" : "2");
+    IupSetAttribute(list, "1", _("Chinese (Simplified)"));
+    IupSetAttribute(list, "2", _("English"));
+    IupSetAttribute(list, "RASTERSIZE", lua_config_get_string("language", "list_size"));
+
+    Ihandle *btn_ok = IupButton(_("OK"), NULL);
+    IupSetCallback(btn_ok, "ACTION", on_dialog_ok);
+    IupSetAttribute(btn_ok, "RASTERSIZE", lua_config_get_string("button", "rastersize"));
+
+    Ihandle *btn_cancel = IupButton(_("Cancel"), NULL);
+    IupSetCallback(btn_cancel, "ACTION", on_dialog_cancel);
+    IupSetAttribute(btn_cancel, "RASTERSIZE", lua_config_get_string("button", "rastersize"));
+
+    Ihandle *vbox = IupVbox(
+        IupLabel(_("Language")),
+        list,
+        IupHbox(IupFill(), btn_ok, btn_cancel, NULL),
+        NULL);
+    IupSetAttribute(vbox, "MARGIN", lua_config_get_string("language", "margin"));
+    IupSetAttribute(vbox, "GAP", lua_config_get_string("language", "gap"));
+
+    Ihandle *dlg = IupDialog(vbox);
+    IupSetAttribute(dlg, "TITLE", _("Language"));
+    IupSetAttribute(dlg, "MINBOX", "NO");
+    IupSetAttribute(dlg, "MAXBOX", "NO");
+    IupSetAttribute(dlg, "RESIZE", "NO");
+    IupSetAttribute(dlg, "RASTERSIZE", lua_config_get_string("language", "dialog_size"));
+
+    IupSetAttributeHandle(dlg, "DEFAULTENTER", btn_ok);
+    IupSetAttributeHandle(dlg, "DEFAULTESC", btn_cancel);
+
+    IupPopup(dlg, IUP_CENTER, IUP_CENTER);
+
+    int result = IupGetInt(dlg, "MY_STATUS");
+    if (result == 1)
+    {
+        int selected = IupGetInt(list, "VALUE");
+        if (selected == 1)
+            i18n_change_language("zh_CN");
+        else
+            i18n_change_language("en_US");
+    }
+
     IupDestroy(dlg);
     return result;
 }

src/ui/main_window.c

@@ -1,7 +1,9 @@
 #include "ui/main_window.h"
 #include "controller/callbacks.h"
 #include "core/lua_config.h"
+#include "utils/i18n.h"
 #include <stddef.h>
+#include <string.h>
 
 // 创建路径列表控件
 static Ihandle *create_path_list(const char *name)
@@ -66,6 +68,11 @@ Ihandle *create_main_window(void)
     Ihandle *btn_export = IupButton(lua_config_get_string("button", "export"), NULL);
     IupSetAttribute(btn_export, "NAME", "BTN_EXPORT");
 
+    // 创建语言切换按钮
+    Ihandle *btn_lang = IupButton(_("Language"), NULL);
+    IupSetAttribute(btn_lang, "NAME", "BTN_LANG");
+    IupSetCallback(btn_lang, "ACTION", (Icallback)btn_lang_cb);
+
     // 设置按钮回调
     IupSetCallback(btn_new, "ACTION", (Icallback)btn_new_cb);
     IupSetCallback(btn_edit, "ACTION", (Icallback)btn_edit_cb);
@@ -88,6 +95,7 @@ Ihandle *create_main_window(void)
     IupSetAttribute(btn_clean, "RASTERSIZE", btn_size);
     IupSetAttribute(btn_import, "RASTERSIZE", btn_size);
     IupSetAttribute(btn_export, "RASTERSIZE", btn_size);
+    IupSetAttribute(btn_lang, "RASTERSIZE", btn_size);
 
     // 创建操作按钮垂直布局
     Ihandle *vbox_btns = IupVbox(
@@ -130,7 +138,7 @@ Ihandle *create_main_window(void)
     IupSetAttribute(btn_help, "RASTERSIZE", btn_size);
 
     // 创建底部按钮水平布局
-    Ihandle *hbox_bottom = IupHbox(lbl_status, IupFill(), btn_help, btn_ok, btn_cancel, NULL);
+    Ihandle *hbox_bottom = IupHbox(lbl_status, IupFill(), btn_help, btn_lang, btn_ok, btn_cancel, NULL);
     IupSetAttribute(hbox_bottom, "GAP", lua_config_get_string("layout", "hbox_gap"));
     IupSetAttribute(hbox_bottom, "MARGIN", lua_config_get_string("layout", "hbox_margin"));
     IupSetAttribute(hbox_bottom, "ALIGNMENT", lua_config_get_string("layout", "hbox_alignment"));
@@ -154,4 +162,67 @@ Ihandle *create_main_window(void)
     IupSetAttribute(dlg, "MAXBOX", "NO");
 
     return dlg;
+}
+
+void refresh_main_window_ui(Ihandle *main_dlg)
+{
+    if (!main_dlg)
+        return;
+
+    IupSetAttribute(main_dlg, "TITLE", lua_config_get_string("app", "name"));
+
+    IupSetAttribute(main_dlg, "TABTITLE0", lua_config_get_string("label", "tab_sys"));
+    IupSetAttribute(main_dlg, "TABTITLE1", lua_config_get_string("label", "tab_user"));
+
+    Ihandle *btn = IupGetDialogChild(main_dlg, "BTN_NEW");
+    if (btn)
+        IupSetAttribute(btn, "TITLE", lua_config_get_string("button", "new"));
+
+    btn = IupGetDialogChild(main_dlg, "BTN_EDIT");
+    if (btn)
+        IupSetAttribute(btn, "TITLE", lua_config_get_string("button", "edit"));
+
+    btn = IupGetDialogChild(main_dlg, "BTN_BROWSE");
+    if (btn)
+        IupSetAttribute(btn, "TITLE", lua_config_get_string("button", "browse"));
+
+    btn = IupGetDialogChild(main_dlg, "BTN_DEL");
+    if (btn)
+        IupSetAttribute(btn, "TITLE", lua_config_get_string("button", "del"));
+
+    btn = IupGetDialogChild(main_dlg, "BTN_UP");
+    if (btn)
+        IupSetAttribute(btn, "TITLE", lua_config_get_string("button", "up"));
+
+    btn = IupGetDialogChild(main_dlg, "BTN_DOWN");
+    if (btn)
+        IupSetAttribute(btn, "TITLE", lua_config_get_string("button", "down"));
+
+    btn = IupGetDialogChild(main_dlg, "BTN_CLEAN");
+    if (btn)
+        IupSetAttribute(btn, "TITLE", lua_config_get_string("button", "clean"));
+
+    btn = IupGetDialogChild(main_dlg, "BTN_IMPORT");
+    if (btn)
+        IupSetAttribute(btn, "TITLE", lua_config_get_string("button", "import"));
+
+    btn = IupGetDialogChild(main_dlg, "BTN_EXPORT");
+    if (btn)
+        IupSetAttribute(btn, "TITLE", lua_config_get_string("button", "export"));
+
+    btn = IupGetDialogChild(main_dlg, "BTN_LANG");
+    if (btn)
+        IupSetAttribute(btn, "TITLE", _("Language"));
+
+    btn = IupGetDialogChild(main_dlg, "BTN_OK");
+    if (btn)
+        IupSetAttribute(btn, "TITLE", lua_config_get_string("button", "ok"));
+
+    btn = IupGetDialogChild(main_dlg, "BTN_CANCEL");
+    if (btn)
+        IupSetAttribute(btn, "TITLE", lua_config_get_string("button", "cancel"));
+
+    btn = IupGetDialogChild(main_dlg, "BTN_HELP");
+    if (btn)
+        IupSetAttribute(btn, "TITLE", lua_config_get_string("button", "help"));
 }

src/utils/i18n.c

@@ -0,0 +1,112 @@
+#include "utils/i18n.h"
+#include "utils/logger.h"
+#include "core/lua_config.h"
+#include <windows.h>
+#include <stdio.h>
+#include <string.h>
+
+static char current_language[16] = {0};
+static char locale_path[256] = {0};
+
+static void load_saved_language(void)
+{
+    FILE *fp = fopen("language.txt", "r");
+    if (fp != NULL)
+    {
+        char lang[16] = {0};
+        if (fgets(lang, sizeof(lang), fp) != NULL)
+        {
+            int len = strlen(lang);
+            if (len > 0 && lang[len - 1] == '\n')
+                lang[len - 1] = '\0';
+            if (strlen(lang) > 0)
+            {
+                size_t copy_len = sizeof(current_language) - 1;
+                if (strlen(lang) < copy_len)
+                    copy_len = strlen(lang);
+                memcpy(current_language, lang, copy_len);
+                current_language[copy_len] = '\0';
+                log_info("Loaded saved language: %s", current_language);
+                fclose(fp);
+                return;
+            }
+        }
+        fclose(fp);
+    }
+}
+
+void i18n_init(const char *default_lang)
+{
+    setlocale(LC_ALL, "");
+
+    snprintf(locale_path, sizeof(locale_path), "./locale");
+    bindtextdomain("messages", locale_path);
+    textdomain("messages");
+
+    load_saved_language();
+
+    if (strlen(current_language) == 0)
+    {
+        const char *detected = i18n_detect_system_language();
+        size_t copy_len = sizeof(current_language) - 1;
+        size_t src_len = strlen(detected);
+        if (src_len < copy_len)
+            copy_len = src_len;
+        memcpy(current_language, detected, copy_len);
+        current_language[copy_len] = '\0';
+    }
+
+    char mo_path[512];
+    snprintf(mo_path, sizeof(mo_path), "%s/%s/LC_MESSAGES/%s.mo", locale_path, current_language, current_language);
+    bindtextdomain("messages", mo_path);
+
+    log_info("i18n initialized with language: %s", current_language);
+}
+
+const char *i18n_detect_system_language(void)
+{
+    LANGID langId = GetUserDefaultUILanguage();
+
+    log_info("Detected system language ID: 0x%04X", langId);
+
+    if (langId == 0x0804)
+    {
+        return "zh_CN";
+    }
+
+    return "en_US";
+}
+
+void i18n_change_language(const char *lang)
+{
+    if (!lang || strlen(lang) == 0)
+        return;
+
+    if (strcmp(current_language, lang) == 0)
+        return;
+
+    size_t copy_len = sizeof(current_language) - 1;
+    size_t src_len = strlen(lang);
+    if (src_len < copy_len)
+        copy_len = src_len;
+    memcpy(current_language, lang, copy_len);
+    current_language[copy_len] = '\0';
+
+    char new_lang_path[512];
+    snprintf(new_lang_path, sizeof(new_lang_path), "%s/%s/LC_MESSAGES/%s.mo", locale_path, lang, lang);
+    bindtextdomain("messages", new_lang_path);
+
+    FILE *fp = fopen("language.txt", "w");
+    if (fp != NULL)
+    {
+        fprintf(fp, "%s\n", lang);
+        fclose(fp);
+    }
+
+    log_info("Language changed to: %s", lang);
+}
+
+const char *i18n_get_current_language(void)
+{
+    return current_language;
+}