GRAPHICS: Let Font take uint32 as character codes.

This is required to support UTF-32 strings but does not make them work
automatically!

5 files changed, 24 insertions, 20 deletions

diff --git a/graphics/fonts/bdf.cpp b/graphics/fonts/bdf.cpp
index e523a36ad5..7b2290cc3a 100644
--- a/graphics/fonts/bdf.cpp
+++ b/graphics/fonts/bdf.cpp
@@ -51,7 +51,7 @@ int BdfFont::getMaxCharWidth() const {
 	return _data.maxAdvance;
 }
 
-int BdfFont::getCharWidth(byte chr) const {
+int BdfFont::getCharWidth(uint32 chr) const {
 	// In case all font have the same advance value, we use the maximum.
 	if (!_data.advances)
 		return _data.maxAdvance;
@@ -85,9 +85,9 @@ void drawCharIntern(byte *ptr, uint pitch, const byte *src, int h, int width, in
 	}
 }
 
-int BdfFont::mapToIndex(byte ch) const {
+int BdfFont::mapToIndex(uint32 ch) const {
 	// Check whether the character is included
-	if (_data.firstCharacter <= ch && ch <= _data.firstCharacter + _data.numCharacters) {
+	if (_data.firstCharacter <= (int)ch && (int)ch <= _data.firstCharacter + _data.numCharacters) {
 		if (_data.bitmaps[ch - _data.firstCharacter])
 			return ch - _data.firstCharacter;
 	}
@@ -95,7 +95,7 @@ int BdfFont::mapToIndex(byte ch) const {
 	return _data.defaultCharacter - _data.firstCharacter;
 }
 
-void BdfFont::drawChar(Surface *dst, byte chr, const int tx, const int ty, const uint32 color) const {
+void BdfFont::drawChar(Surface *dst, uint32 chr, const int tx, const int ty, const uint32 color) const {
 	assert(dst != 0);
 
 	// TODO: Where is the relation between the max advance being smaller or
diff --git a/graphics/fonts/bdf.h b/graphics/fonts/bdf.h
index b0166a2095..842e54f851 100644
--- a/graphics/fonts/bdf.h
+++ b/graphics/fonts/bdf.h
@@ -61,14 +61,14 @@ public:
 	virtual int getFontHeight() const;
 	virtual int getMaxCharWidth() const;
 
-	virtual int getCharWidth(byte chr) const;
-	virtual void drawChar(Surface *dst, byte chr, int x, int y, uint32 color) const;
+	virtual int getCharWidth(uint32 chr) const;
+	virtual void drawChar(Surface *dst, uint32 chr, int x, int y, uint32 color) const;
 
 	static BdfFont *loadFont(Common::SeekableReadStream &stream);
 	static bool cacheFontData(const BdfFont &font, const Common::String &filename);
 	static BdfFont *loadFromCache(Common::SeekableReadStream &stream);
 private:
-	int mapToIndex(byte ch) const;
+	int mapToIndex(uint32 ch) const;
 
 	const BdfFontData _data;
 	const DisposeAfterUse::Flag _dispose;
diff --git a/graphics/fonts/ttf.cpp b/graphics/fonts/ttf.cpp
index b9e9610d77..f5bd67fe86 100644
--- a/graphics/fonts/ttf.cpp
+++ b/graphics/fonts/ttf.cpp
@@ -107,11 +107,11 @@ public:
 
 	virtual int getMaxCharWidth() const;
 
-	virtual int getCharWidth(byte chr) const;
+	virtual int getCharWidth(uint32 chr) const;
 
-	virtual int getKerningOffset(byte left, byte right) const;
+	virtual int getKerningOffset(uint32 left, uint32 right) const;
 
-	virtual void drawChar(Surface *dst, byte chr, int x, int y, uint32 color) const;
+	virtual void drawChar(Surface *dst, uint32 chr, int x, int y, uint32 color) const;
 private:
 	bool _initialized;
 	FT_Face _face;
@@ -129,7 +129,7 @@ private:
 	};
 
 	bool cacheGlyph(Glyph &glyph, FT_UInt &slot, uint chr);
-	typedef Common::HashMap<byte, Glyph> GlyphCache;
+	typedef Common::HashMap<uint32, Glyph> GlyphCache;
 	GlyphCache _glyphs;
 
 	FT_UInt _glyphSlots[256];
@@ -243,7 +243,7 @@ int TTFFont::getMaxCharWidth() const {
 	return _width;
 }
 
-int TTFFont::getCharWidth(byte chr) const {
+int TTFFont::getCharWidth(uint32 chr) const {
 	GlyphCache::const_iterator glyphEntry = _glyphs.find(chr);
 	if (glyphEntry == _glyphs.end())
 		return 0;
@@ -251,10 +251,14 @@ int TTFFont::getCharWidth(byte chr) const {
 		return glyphEntry->_value.advance;
 }
 
-int TTFFont::getKerningOffset(byte left, byte right) const {
+int TTFFont::getKerningOffset(uint32 left, uint32 right) const {
 	if (!_hasKerning)
 		return 0;
 
+	if (left > 255 || right > 255) {
+		return 0;
+	}
+
 	FT_UInt leftGlyph = _glyphSlots[left];
 	FT_UInt rightGlyph = _glyphSlots[right];
 
@@ -304,7 +308,7 @@ void renderGlyph(uint8 *dstPos, const int dstPitch, const uint8 *srcPos, const i
 
 } // End of anonymous namespace
 
-void TTFFont::drawChar(Surface *dst, byte chr, int x, int y, uint32 color) const {
+void TTFFont::drawChar(Surface *dst, uint32 chr, int x, int y, uint32 color) const {
 	GlyphCache::const_iterator glyphEntry = _glyphs.find(chr);
 	if (glyphEntry == _glyphs.end())
 		return;
diff --git a/graphics/fonts/winfont.cpp b/graphics/fonts/winfont.cpp
index 3bad92236d..c0ebab19ba 100644
--- a/graphics/fonts/winfont.cpp
+++ b/graphics/fonts/winfont.cpp
@@ -200,7 +200,7 @@ char WinFont::indexToCharacter(uint16 index) const {
 	return index + _firstChar;
 }
 
-uint16 WinFont::characterToIndex(byte character) const {
+uint16 WinFont::characterToIndex(uint32 character) const {
 	// Go to the default character if we didn't find a mapping
 	if (character < _firstChar || character > _lastChar)
 		character = _defaultChar;
@@ -208,7 +208,7 @@ uint16 WinFont::characterToIndex(byte character) const {
 	return character - _firstChar;
 }
 
-int WinFont::getCharWidth(byte chr) const {
+int WinFont::getCharWidth(uint32 chr) const {
 	return _glyphs[characterToIndex(chr)].charWidth;
 }
 
@@ -324,7 +324,7 @@ bool WinFont::loadFromFNT(Common::SeekableReadStream &stream) {
 	return true;
 }
 
-void WinFont::drawChar(Surface *dst, byte chr, int x, int y, uint32 color) const {
+void WinFont::drawChar(Surface *dst, uint32 chr, int x, int y, uint32 color) const {
 	assert(dst);
 	assert(dst->format.bytesPerPixel == 1 || dst->format.bytesPerPixel == 2 || dst->format.bytesPerPixel == 4);
 	assert(_glyphs);
diff --git a/graphics/fonts/winfont.h b/graphics/fonts/winfont.h
index 4382d7ed6b..2c7ba07b41 100644
--- a/graphics/fonts/winfont.h
+++ b/graphics/fonts/winfont.h
@@ -62,8 +62,8 @@ public:
 	// Font API
 	int getFontHeight() const { return _pixHeight; }
 	int getMaxCharWidth() const { return _maxWidth; }
-	int getCharWidth(byte chr) const;
-	void drawChar(Surface *dst, byte chr, int x, int y, uint32 color) const;
+	int getCharWidth(uint32 chr) const;
+	void drawChar(Surface *dst, uint32 chr, int x, int y, uint32 color) const;
 
 private:
 	bool loadFromPE(const Common::String &fileName, const WinFontDirEntry &dirEntry);
@@ -72,7 +72,7 @@ private:
 	uint32 getFontIndex(Common::SeekableReadStream &stream, const WinFontDirEntry &dirEntry);
 	bool loadFromFNT(Common::SeekableReadStream &stream);
 	char indexToCharacter(uint16 index) const;
-	uint16 characterToIndex(byte character) const;
+	uint16 characterToIndex(uint32 character) const;
 
 	uint16 _pixHeight;
 	uint16 _maxWidth;