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

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• Hash : 8b61525b
  Author :
  Date : 2003-04-23T18:14:51
  

  * src/base/ftbdf.c (FT_Get_BDF_Property): Check for valid `get_interface'.

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• src/base/ftbdf.c

• /***************************************************************************/
  /*                                                                         */
  /*  ftbdf.c                                                                */
  /*                                                                         */
  /*    FreeType API for accessing BDF-specific strings (body).              */
  /*                                                                         */
  /*  Copyright 2002, 2003 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_INTERNAL_BDF_TYPES_H
  #include FT_INTERNAL_OBJECTS_H
  
  
    static FT_Bool
    test_font_type( FT_Face      face,
                    const char*  name )
    {
      if ( face && face->driver )
      {
        FT_Module  driver = (FT_Module)face->driver;
  
  
        if ( driver->clazz && driver->clazz->module_name )
        {
          if ( ft_strcmp( driver->clazz->module_name, name ) == 0 )
            return 1;
        }
      }
      return 0;
    }
  
  
    FT_EXPORT_DEF( FT_Error )
    FT_Get_BDF_Charset_ID( FT_Face       face,
                           const char*  *acharset_encoding,
                           const char*  *acharset_registry )
    {
      FT_Error     error;
      const char*  encoding = NULL;
      const char*  registry = NULL;
  
  
      error = FT_Err_Invalid_Argument;
  
      if ( test_font_type( face, "bdf" ) )
      {
        BDF_Public_Face  bdf_face = (BDF_Public_Face)face;
  
  
        encoding = (const char*) bdf_face->charset_encoding;
        registry = (const char*) bdf_face->charset_registry;
        error    = 0;
      }
  
      if ( acharset_encoding )
        *acharset_encoding = encoding;
  
      if ( acharset_registry )
        *acharset_registry = registry;
  
      return error;
    }
  
  
    FT_EXPORT( FT_Error )
    FT_Get_BDF_Property( FT_Face           face,
                         const char*       prop_name,
                         BDF_PropertyRec  *aproperty )
    {
      FT_Error  error;
  
  
      error = FT_Err_Invalid_Argument;
  
      aproperty->type = BDF_PROPERTY_TYPE_NONE;
  
      if ( face != NULL && face->driver != NULL )
      {
        FT_Driver            driver = face->driver;
        BDF_GetPropertyFunc  func;
  
  
        if ( driver->root.clazz->get_interface )
        {
          func = (BDF_GetPropertyFunc)driver->root.clazz->get_interface(
                   FT_MODULE( driver ), "get_bdf_property" );
          if ( func )
            error = func( face, prop_name, aproperty );
        }
      }
  
      return error;
    }
  
  
  /* END */
  

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