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FTCharmap.cpp
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FTCharmap.cpp
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#include "FTCharmap.h"
#ifdef FTGL_DEBUG
#include "mmgr.h"
#endif
#ifdef FTGL_USE_NAMESPACE
namespace ftgl
{
#endif
FTCharmap::FTCharmap( FT_Face face)
: ftFace( face),
err(0)
{
// Check that the default is valid
if( !face->charmap)
{
FT_Set_Charmap( ftFace, ftFace->charmaps[0]);
ftEncoding = ft_encoding_none;
}
else
{
ftEncoding = face->charmap->encoding;
}
}
FTCharmap::~FTCharmap()
{
charMap.clear();
}
bool FTCharmap::CharMap( FT_Encoding encoding)
{
if( ftEncoding == encoding)
{
return true;
}
err = FT_Select_Charmap( ftFace, encoding );
if( !err)
{
ftEncoding = encoding;
charMap.clear();
}
return !err;
}
bool FTCharmap::CharMap( FT_UShort platform, FT_UShort encoding)
{
FT_CharMap found = 0;
FT_CharMap charmap;
for( int n = 0; n < ftFace->num_charmaps; n++ )
{
charmap = ftFace->charmaps[n];
if( charmap->platform_id == platform && charmap->encoding_id == encoding)
{
found = charmap;
break;
}
}
if( !found )
{
return false;
}
if( ftEncoding == found->encoding)
{
return true;
}
/* now, select the charmap for the face object */
err = FT_Set_Charmap( ftFace, found );
if( !err)
{
ftEncoding = found->encoding;
charMap.clear();
}
return !err;
}
unsigned int FTCharmap::CharIndex( unsigned int index )
{
#ifdef FTGL_DO_NOT_USE_STL
const CharacterMap::GlyphIndex *result = charMap.find(index);
if (!result)
{
unsigned int glyph = FT_Get_Char_Index(ftFace, index);
charMap.insert(index, glyph);
return glyph;
}
else
{
return *result;
}
#else
CharacterMap::const_iterator result = charMap.find( index);
if( result == charMap.end())
{
unsigned int glyph = FT_Get_Char_Index( ftFace, index);
charMap.insert( CharacterMap::value_type( index, glyph));
return glyph;
}
else
{
return result->second;
}
#endif
}
#ifdef FTGL_USE_NAMESPACE
} // namespace ftgl
#endif