i18n: Add support for locale-dependent fonts

Currently it ws not decided where to put fonts, but if you put BDF files into
themepath, they will get picked up.

The font name has to contain same codepage specification as in the .po file,
i.e. fixed5x8-iso-8859-5.bdf for Cyrillic codepage. In case the font does not
exist, default will be used.

All built in fonts get proper names.

TODO: Currently there is a bug with our font cacher. Font clR6x12-iso-8859-5
is empty after loading from FCC file. Reason is unknown.

svn-id: r50448

common/translation.cpp

@@ -130,6 +130,10 @@ const char *TranslationManager::getTranslation(const char *message) {
 	return po2c_gettext(message);
 }
 
+const char *TranslationManager::getCurrentCharset() {
+	return po2c_getcharset();
+}
+
 String TranslationManager::getTranslation(const String &message) {
 	return po2c_gettext(message.c_str());
 }

common/translation.h

@@ -121,6 +121,11 @@ public:
 	 */
 	const TLangArray getSupportedLanguages() const;
 
+	/**
+	 * Returns charset specified by selected translation language
+	 */
+	const char *getCurrentCharset();
+
 private:
 	Common::String _syslang;
 };

graphics/fontman.cpp

@@ -57,18 +57,28 @@ FontManager::~FontManager() {
 	g_consolefont = 0;
 }
 
-const char *builtinFontNames[] = {
-	"builtinOSD",
-	"builtinConsole",
-	"builtinGUI",
-	"builtinBigGUI",
-	0
+const struct {
+	const char *name;
+	FontManager::FontUsage id;
+} builtinFontNames[] = {
+	{ "builtinOSD", FontManager::kOSDFont },
+	{ "builtinConsole", FontManager::kConsoleFont },
+	{ "fixed5x8.bdf", FontManager::kConsoleFont },
+	{ "fixed5x8-iso-8859-1.bdf", FontManager::kConsoleFont },
+	{ "fixed5x8-ascii.bdf", FontManager::kConsoleFont },
+	{ "clR6x12.bdf", FontManager::kGUIFont },
+	{ "clR6x12-iso-8859-1.bdf", FontManager::kGUIFont },
+	{ "clR6x12-ascii.bdf", FontManager::kGUIFont },
+	{ "helvB12.bdf", FontManager::kBigGUIFont },
+	{ "helvB12-iso-8859-1.bdf", FontManager::kBigGUIFont },
+	{ "helvB12-ascii.bdf", FontManager::kBigGUIFont },
+	{ 0, FontManager::kOSDFont }
 };
 
 const Font *FontManager::getFontByName(const Common::String &name) const {
-	for (int i = 0; builtinFontNames[i]; i++)
-		if (!strcmp(name.c_str(), builtinFontNames[i]))
-			return getFontByUsage((FontUsage)i);
+	for (int i = 0; builtinFontNames[i].name; i++)
+		if (!scumm_stricmp(name.c_str(), builtinFontNames[i].name))
+			return getFontByUsage(builtinFontNames[i].id);
 
 	if (!_fontMap.contains(name))
 		return 0;

gui/ThemeEngine.cpp

@@ -568,9 +568,16 @@ bool ThemeEngine::addFont(TextData textId, const Common::String &file) {
 	if (file == "default") {
 		_texts[textId]->_fontPtr = _font;
 	} else {
-		_texts[textId]->_fontPtr = FontMan.getFontByName(file);
+		Common::String localized = genLocalizedFontFilename(file.c_str());
+		// Try built-in fonts
+		_texts[textId]->_fontPtr = FontMan.getFontByName(localized);
 
 		if (!_texts[textId]->_fontPtr) {
+			// First try to load localized font
+			_texts[textId]->_fontPtr = loadFont(localized);
+
+			// Fallback to non-localized font
+			if (!_texts[textId]->_fontPtr)
 				_texts[textId]->_fontPtr = loadFont(file);
 
 			if (!_texts[textId]->_fontPtr)
@@ -1495,6 +1502,34 @@ Common::String ThemeEngine::genCacheFilename(const char *filename) {
 	return Common::String();
 }
 
+Common::String ThemeEngine::genLocalizedFontFilename(const char *filename) {
+#ifndef USE_TRANSLATION
+	return Common::String(filename);
+#else
+
+	Common::String result;
+	bool pointPassed = false;
+
+	for (const char *p = filename; *p != 0; p++) {
+		if (!pointPassed) {
+			if (*p != '.') {
+				result += *p;
+			} else {
+				result += "-";
+				result += TransMan.getCurrentCharset();
+				result += *p;
+
+				pointPassed = true;
+			}
+		} else {
+			result += *p;
+		}
+	}
+
+	return result;
+#endif
+}
+
 
 /**********************************************************
  *	Static Theme XML functions

gui/ThemeEngine.h

@@ -539,6 +539,7 @@ protected:
 	const Graphics::Font *loadFont(const Common::String &filename);
 	const Graphics::Font *loadFontFromArchive(const Common::String &filename);
 	Common::String genCacheFilename(const char *filename);
+	Common::String genLocalizedFontFilename(const char *filename);
 
 	/**
 	 *	Actual Dirty Screen handling function.

gui/themes/scummclassic/classic_gfx.stx

@@ -44,16 +44,28 @@
 
 	<fonts>
 		<font	id = 'text_default'
-				file = 'default'
+				file = 'helvb12.bdf'
+		/>
+		<font	resolution = '320xY, 256x240'
+		   		id = 'text_default'
+				file = 'clR6x12.bdf'
 		/>
 		<font	id = 'text_button'
-				file = 'default'
+				file = 'helvb12.bdf'
+		/>
+		<font	resolution = '320xY, 256x240'
+		   		id = 'text_button'
+				file = 'clR6x12.bdf'
 		/>
 		<font	id = 'text_normal'
-				file = 'default'
+				file = 'helvb12.bdf'
+		/>
+		<font	resolution = '320xY, 256x240'
+		   		id = 'text_normal'
+				file = 'clR6x12.bdf'
 		/>
 		<font	id = 'tooltip_normal'
-				file = 'builtinConsole'
+				file = 'fixed5x8.bdf'
 		/>
 
 		<text_color	id = 'color_normal'

gui/themes/scummmodern/scummmodern_gfx.stx

@@ -106,16 +106,28 @@
 
 	<fonts>
 		<font	id = 'text_default'
-				file = 'default'
+				file = 'helvb12.bdf'
+		/>
+		<font	resolution = '320xY, 256x240'
+		   		id = 'text_default'
+				file = 'clR6x12.bdf'
 		/>
 		<font	id = 'text_button'
-				file = 'default'
+				file = 'helvb12.bdf'
+		/>
+		<font	resolution = '320xY, 256x240'
+		   		id = 'text_button'
+				file = 'clR6x12.bdf'
 		/>
 		<font	id = 'text_normal'
-				file = 'helvr12-l1.bdf'
+				file = 'helvb12.bdf'
+		/>
+		<font	resolution = '320xY, 256x240'
+		   		id = 'text_normal'
+				file = 'clR6x12.bdf'
 		/>
 		<font	id = 'tooltip_normal'
-				file = 'builtinConsole'
+				file = 'fixed5x8.bdf'
 		/>
 
 		<text_color	id = 'color_normal'