From afa3f50b8a2bc47a243156c196f88ab799fe4f8f Mon Sep 17 00:00:00 2001
From: Johannes Schickel
Date: Sat, 23 Nov 2013 21:34:54 +0100
Subject: GRAPHICS: Let Font take uint32 as character codes.

This is required to support UTF-32 strings but does not make them work
automatically!
---
 graphics/fonts/ttf.cpp | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

(limited to 'graphics/fonts/ttf.cpp')

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;
-- 
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