af_cjk_metrics_init( AF_LatinMetrics metrics,
FT_Face face )
{
FT_CharMap oldmap = face->charmap;
metrics->units_per_em = face->units_per_EM;
/* TODO are there blues? */
if ( FT_Select_Charmap( face, FT_ENCODING_UNICODE ) )
face->charmap = NULL;
/* latin's version would suffice */
af_latin_metrics_init_widths( metrics, face, 0x7530 );
FT_Set_Charmap( face, oldmap );
return AF_Err_Ok;
}
af_latin_metrics_init( AF_LatinMetrics metrics,
FT_Face face )
{
FT_Error error = AF_Err_Ok;
FT_CharMap oldmap = face->charmap;
FT_UInt ee;
static const FT_Encoding latin_encodings[] =
{
FT_ENCODING_UNICODE,
FT_ENCODING_APPLE_ROMAN,
FT_ENCODING_ADOBE_STANDARD,
FT_ENCODING_ADOBE_LATIN_1,
FT_ENCODING_NONE /* end of list */
};
metrics->units_per_em = face->units_per_EM;
/* do we have a latin charmap in there? */
for ( ee = 0; latin_encodings[ee] != FT_ENCODING_NONE; ee++ )
{
error = FT_Select_Charmap( face, latin_encodings[ee] );
if ( !error )
break;
}
if ( !error )
{
/* For now, compute the standard width and height from the `o'. */
af_latin_metrics_init_widths( metrics, face, 'o' );
af_latin_metrics_init_blues( metrics, face );
}
FT_Set_Charmap( face, oldmap );
return AF_Err_Ok;
}
