Preliminary version of GTRANS

demos/modules/gtrans/basic/gfxconf.h

@@ -42,7 +42,7 @@
 #define GDISP_NEED_VALIDATION	TRUE
 #define GDISP_NEED_CLIP			TRUE
 #define GDISP_NEED_TEXT			TRUE
-#define GDISP_NEED_ANTIALIAS	TRUE
+#define GDISP_NEED_ANTIALIAS	FALSE
 
 #define GDISP_INCLUDE_USER_FONTS				FALSE
 #define GDISP_INCLUDE_FONT_UI1					FALSE

demos/modules/gtrans/basic/main.c

@@ -29,9 +29,46 @@
 
 #include "gfx.h"
 
+static const char* EnglishStrings[] = {
+    "Welcome",
+    "The number %s has the value %d",
+    "Goodbye"
+};
+static const transTable EnglishTranslation = { sizeof(EnglishStrings)/sizeof(EnglishStrings[0]), EnglishStrings };
+
+static const char* GermanStrings[] = {
+    "Herzlich Willkommen",
+    "Die Zahl %s hat den Wert %d",
+    "Auf Wiedersehen"
+};
+static const transTable GermanTranslation = { sizeof(GermanStrings)/sizeof(GermanStrings[0]), GermanStrings };
+
 int main(void)
 {
+    size_t i, j;
+    font_t font;
+
     gfxInit();
+    gdispClear(Silver);
+
+    font = gdispOpenFont("*");
+
+    gtransSetBaseLanguage(&EnglishTranslation);
+    gtransSetLanguage(&GermanTranslation);
+
+    gtransSetLanguage(&EnglishTranslation);
+    i = 0;
+    for (j = 0; j < EnglishTranslation.numEntries; j++) {
+        gdispFillStringBox(20+300*i, 35*j, 300, 35, gtransIndex(j), font, Black, Silver, justifyLeft);
+    }
+
+    gtransSetLanguage(&GermanTranslation);
+    i = 1;
+    for (j = 0; j < EnglishTranslation.numEntries; j++) {
+        gdispFillStringBox(20+300*i, 35*j, 300, 35, gtransIndex(j), font, Black, Silver, justifyLeft);
+    }
+
+    gdispFillStringBox(20, 300, 300, 25, gtransString("Welcome"), font, Black, Silver, justifyLeft);
 
 	while (TRUE) {
 		gfxSleepMilliseconds(500);

gfx.h

@@ -145,6 +145,13 @@
 	#ifndef GFX_USE_GFILE
 		#define GFX_USE_GFILE	FALSE
 	#endif
+	/**
+	 * @brief   GFX Translation Support API
+	 * @details	Defaults to FALSE
+	 */
+	#ifndef GFX_USE_GTRANS
+		#define GFX_USE_GTRANS	FALSE
+	#endif
 /** @} */
 
 /**
@@ -155,6 +162,7 @@
 #include "src/gdriver/gdriver_options.h"
 #include "src/gfile/gfile_options.h"
 #include "src/gmisc/gmisc_options.h"
+#include "src/gtrans/gtrans_options.h"
 #include "src/gqueue/gqueue_options.h"
 #include "src/gevent/gevent_options.h"
 #include "src/gtimer/gtimer_options.h"
@@ -181,6 +189,7 @@
 #include "src/gtimer/gtimer_rules.h"
 #include "src/gqueue/gqueue_rules.h"
 #include "src/gmisc/gmisc_rules.h"
+#include "src/gtrans/gtrans_rules.h"
 #include "src/gfile/gfile_rules.h"
 #include "src/gdriver/gdriver_rules.h"
 #include "src/gos/gos_rules.h"
@@ -192,6 +201,7 @@
 //#include "src/gdriver/gdriver.h"			// This module is only included by source that needs it.
 #include "src/gfile/gfile.h"
 #include "src/gmisc/gmisc.h"
+#include "src/gtrans/gtrans.h"
 #include "src/gqueue/gqueue.h"
 #include "src/gevent/gevent.h"
 #include "src/gtimer/gtimer.h"

src/gtrans/gtrans.c

@@ -5,16 +5,67 @@
  *              http://ugfx.org/license.html
  */
 
+#include <string.h>
 #include "../../gfx.h"
 
 #if GFX_USE_GTRANS
 
+static const transTable* _languageBase;
+static const transTable* _languageCurrent;
+
 void _gtransInit(void)
 {
+	_languageBase = 0;
+	_languageCurrent = 0;
 }
 
 void _gtransDeinit(void)
 {
 }
 
+const char* gtransString(const char* string)
+{
+	size_t i = 0;
+	while (1) {
+		if (i >= _languageBase->numEntries-1) {
+			return 0;
+		}
+
+		if (strcmp(string, _languageBase->strings[i]) == 0) {
+			break;
+		}
+
+		i++;
+	}
+
+	if (i >= _languageCurrent->numEntries-1) {
+		return 0;
+	}
+
+	return _languageCurrent->strings[i];
+}
+
+const char* gtransIndex(unsigned index)
+{
+	if (!_languageCurrent) {
+		return 0;
+	}
+
+	if (index >= _languageCurrent->numEntries) {
+		return 0;
+	}
+
+	return _languageCurrent->strings[index];
+}
+
+void gtransSetBaseLanguage(const transTable* const translation)
+{
+	_languageBase = translation;
+}
+
+void gtransSetLanguage(const transTable* const translation)
+{
+	_languageCurrent = translation;
+}
+
 #endif /* GFX_USE_GTRANS */

src/gtrans/gtrans.h

@@ -22,11 +22,19 @@
 
 #if GFX_USE_GTRANS || defined(__DOXYGEN__)
 
+typedef struct transTable {
+	unsigned numEntries;
+	const char** strings;
+} transTable;
+
 #ifdef __cplusplus
 extern "C" {
 #endif
 
-
+const char* gtransString(const char* string);
+const char* gtransIndex(unsigned index);
+void gtransSetBaseLanguage(const transTable* const translation);
+void gtransSetLanguage(const transTable* const translation);
 
 #ifdef __cplusplus
 }