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/***************************************************************************/
/* */
/* afshaper.c */
/* */
/* HarfBuzz interface for accessing OpenType features (body). */
/* */
/* Copyright 2013-2018 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
/* modified, and distributed under the terms of the FreeType project */
/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
/* this file you indicate that you have read the license and */
/* understand and accept it fully. */
/* */
/***************************************************************************/
#include "ft2build.h"
#include FT_FREETYPE_H
#include FT_ADVANCES_H
#include "afglobal.h"
#include "aftypes.h"
#include "afshaper.h"
FT_Error
af_shaper_get_coverage( AF_FaceGlobals globals,
AF_StyleClass style_class,
FT_UShort* gstyles,
FT_Bool default_script )
{
FT_UNUSED( globals );
FT_UNUSED( style_class );
FT_UNUSED( gstyles );
FT_UNUSED( default_script );
return FT_Err_Ok;
}
void*
af_shaper_buf_create( FT_Face face )
{
FT_Error error;
FT_Memory memory = face->memory;
FT_ULong* buf;
FT_MEM_ALLOC( buf, sizeof ( FT_ULong ) );
return (void*)buf;
}
void
af_shaper_buf_destroy( FT_Face face,
void* buf )
{
FT_Memory memory = face->memory;
FT_FREE( buf );
}
const char*
af_shaper_get_cluster( const char* p,
AF_StyleMetrics metrics,
void* buf_,
unsigned int* count )
{
FT_Face face = metrics->globals->face;
FT_ULong ch, dummy = 0;
FT_ULong* buf = (FT_ULong*)buf_;
while ( *p == ' ' )
p++;
GET_UTF8_CHAR( ch, p );
/* since we don't have an engine to handle clusters, */
/* we scan the characters but return zero */
while ( !( *p == ' ' || *p == '\0' ) )
GET_UTF8_CHAR( dummy, p );
if ( dummy )
{
*buf = 0;
*count = 0;
}
else
{
*buf = FT_Get_Char_Index( face, ch );
*count = 1;
}
return p;
}
FT_ULong
af_shaper_get_elem( AF_StyleMetrics metrics,
void* buf_,
unsigned int idx,
FT_Long* advance,
FT_Long* y_offset )
{
FT_Face face = metrics->globals->face;
FT_ULong glyph_index = *(FT_ULong*)buf_;
FT_UNUSED( idx );
if ( advance )
FT_Get_Advance( face,
glyph_index,
FT_LOAD_NO_SCALE |
FT_LOAD_NO_HINTING |
FT_LOAD_IGNORE_TRANSFORM,
advance );
if ( y_offset )
*y_offset = 0;
return glyph_index;
}
/* END */
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