1 files changed, 86 insertions, 0 deletions
diff --git a/Marlin/src/core/multi_language.h b/Marlin/src/core/multi_language.h
new file mode 100644
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+++ b/Marlin/src/core/multi_language.h
@@ -0,0 +1,86 @@
+/********************
+ * multi_language.h *
+ ********************/
+
+/****************************************************************************
+ *   Written By Marcio Teixeira 2019 - Aleph Objects, Inc.                  *
+ *                                                                          *
+ *   This program is free software: you can redistribute it and/or modify   *
+ *   it under the terms of the GNU General Public License as published by   *
+ *   the Free Software Foundation, either version 3 of the License, or      *
+ *   (at your option) any later version.                                    *
+ *                                                                          *
+ *   This program is distributed in the hope that it will be useful,        *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of         *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the          *
+ *   GNU General Public License for more details.                           *
+ *                                                                          *
+ *   To view a copy of the GNU General Public License, go to the following  *
+ *   location: <https://www.gnu.org/licenses/>.                             *
+ ****************************************************************************/
+#pragma once
+
+#include "../inc/MarlinConfigPre.h"
+
+typedef const char Language_Str[];
+
+#ifdef LCD_LANGUAGE_5
+  #define NUM_LANGUAGES 5
+#elif defined(LCD_LANGUAGE_4)
+  #define NUM_LANGUAGES 4
+#elif defined(LCD_LANGUAGE_3)
+  #define NUM_LANGUAGES 3
+#elif defined(LCD_LANGUAGE_2)
+  #define NUM_LANGUAGES 2
+#else
+  #define NUM_LANGUAGES 1
+#endif
+
+// Setting the unused languages equal to each other allows
+// the compiler to optimize away the conditionals
+
+#ifndef LCD_LANGUAGE_2
+  #define LCD_LANGUAGE_2 LCD_LANGUAGE
+#endif
+
+#ifndef LCD_LANGUAGE_3
+  #define LCD_LANGUAGE_3 LCD_LANGUAGE_2
+#endif
+
+#ifndef LCD_LANGUAGE_4
+  #define LCD_LANGUAGE_4 LCD_LANGUAGE_3
+#endif
+
+#ifndef LCD_LANGUAGE_5
+  #define LCD_LANGUAGE_5 LCD_LANGUAGE_4
+#endif
+
+#define _GET_LANG(LANG) Language_##LANG
+#define GET_LANG(LANG) _GET_LANG(LANG)
+
+#if NUM_LANGUAGES > 1
+  #define HAS_MULTI_LANGUAGE 1
+  #define GET_TEXT(MSG) ( \
+    ui.language == 0 ? GET_LANG(LCD_LANGUAGE  )::MSG : \
+    ui.language == 1 ? GET_LANG(LCD_LANGUAGE_2)::MSG : \
+    ui.language == 2 ? GET_LANG(LCD_LANGUAGE_3)::MSG : \
+    ui.language == 3 ? GET_LANG(LCD_LANGUAGE_4)::MSG : \
+                       GET_LANG(LCD_LANGUAGE_5)::MSG   )
+  #define MAX_LANG_CHARSIZE _MAX(GET_LANG(LCD_LANGUAGE  )::CHARSIZE, \
+                                 GET_LANG(LCD_LANGUAGE_2)::CHARSIZE, \
+                                 GET_LANG(LCD_LANGUAGE_3)::CHARSIZE, \
+                                 GET_LANG(LCD_LANGUAGE_4)::CHARSIZE, \
+                                 GET_LANG(LCD_LANGUAGE_5)::CHARSIZE  )
+#else
+  #define GET_TEXT(MSG) GET_LANG(LCD_LANGUAGE)::MSG
+  #define MAX_LANG_CHARSIZE LANG_CHARSIZE
+#endif
+#define GET_TEXT_F(MSG) (const __FlashStringHelper*)GET_TEXT(MSG)
+
+#define GET_LANGUAGE_NAME(INDEX) GET_LANG(LCD_LANGUAGE_##INDEX)::LANGUAGE
+#define LANG_CHARSIZE GET_TEXT(CHARSIZE)
+#define USE_WIDE_GLYPH (LANG_CHARSIZE > 2)
+
+#define MSG_1_LINE(A)     A "\0"   "\0"
+#define MSG_2_LINE(A,B)   A "\0" B "\0"
+#define MSG_3_LINE(A,B,C) A "\0" B "\0" C