ftcid.c

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Author : Werner Lemberg
Date : 2009-03-11 21:29:54
Hash : 07e81817
Message : Extend CID service functions to handle CID-keyed CFFs as CID fonts. * include/freetype/ftcid.h (FT_Get_CID_Is_Internally_CID_keyed, FT_Get_CID_From_Glyph_Index): New functions. * include/freetype/internal/services/svcid.h (FT_CID_GetIsInternallyCIDKeyedFunc, FT_CID_GetCIDFromGlyphIndexFunc): New function typedefs. (CID Service): Use them. * src/base/ftcid.c: Include FT_CID_H. (FT_Get_CID_Is_Internally_CID_keyed, FT_Get_CID_From_Glyph_Index): New functions. * src/cff/cffdrivr.c (cff_get_is_cid, cff_get_cid_from_glyph_index): New functions. (cff_service_cid_info): Add them. * src/cff/cffload.c (cff_font_load): Don't free `font->charset.sids' -- it is needed for access as a CID-keyed font. It gets deleted later on. * src/cid/cidriver.c (cid_get_is_cid, cid_get_cid_from_glyph_index): New functions. (cid_service_cid_info): Add them. * docs/CHANGES: Updated.

src/base/ftcid.c

/***************************************************************************/
/*                                                                         */
/*  ftcid.c                                                                */
/*                                                                         */
/*    FreeType API for accessing CID font information.                     */
/*                                                                         */
/*  Copyright 2007, 2009 by Derek Clegg, Michael Toftdal.                  */
/*                                                                         */
/*  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_CID_H
#include FT_INTERNAL_OBJECTS_H
#include FT_SERVICE_CID_H


  /* documentation is in ftcid.h */

  FT_EXPORT_DEF( FT_Error )
  FT_Get_CID_Registry_Ordering_Supplement( FT_Face       face,
                                           const char*  *registry,
                                           const char*  *ordering,
                                           FT_Int       *supplement)
  {
    FT_Error     error;
    const char*  r = NULL;
    const char*  o = NULL;
    FT_Int       s = 0;


    error = FT_Err_Invalid_Argument;

    if ( face )
    {
      FT_Service_CID  service;


      FT_FACE_FIND_SERVICE( face, service, CID );

      if ( service && service->get_ros )
        error = service->get_ros( face, &r, &o, &s );
    }

    if ( registry )
      *registry = r;

    if ( ordering )
      *ordering = o;

    if ( supplement )
      *supplement = s;

    return error;
  }


  FT_EXPORT_DEF( FT_Error )
  FT_Get_CID_Is_Internally_CID_Keyed( FT_Face   face,
                                      FT_Bool  *is_cid )
  {
    FT_Error  error = FT_Err_Invalid_Argument;
    FT_Bool   ic = 0;


    if ( face )
    {
      FT_Service_CID  service;


      FT_FACE_FIND_SERVICE( face, service, CID );

      if ( service && service->get_is_cid )
        error = service->get_is_cid( face, &ic);
    }

    if ( is_cid )
      *is_cid = ic;

    return error;
  }


  FT_EXPORT_DEF( FT_Error )
  FT_Get_CID_From_Glyph_Index( FT_Face   face,
                               FT_UInt   glyph_index,
                               FT_UInt  *cid )
  {
    FT_Error  error = FT_Err_Invalid_Argument;
    FT_UInt   c = 0;


    if ( face )
    {
      FT_Service_CID  service;


      FT_FACE_FIND_SERVICE( face, service, CID );

      if ( service && service->get_cid_from_glyph_index )
        error = service->get_cid_from_glyph_index( face, glyph_index, &c);
    }

    if ( cid )
      *cid = c;

    return error;
  }


/* END */

kc3-lang/freetype/src/base/ftcid.c

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kc3-lang/freetype /src/base/ftcid.c