ftdump.c

freetype库的应用demo,里面包含freetype的很多实例

      case 0x2013:
        fputs( "--", stdout );
        break;
      case 0x2019:
        fputs( "\'", stdout );
        break;

      case 0x2122:
        fputs( "(tm)", stdout );
        break;

      default:
        if ( ch < 256 )
          putchar( ch );
        else
          printf( "\\U+%04X", ch );
        break;
      }
    }
    if ( ch != '\n' )
      putchar( '"' );
  }


  void
  Print_Sfnt_Names( FT_Face  face )
  {
    FT_SfntName  name;
    FT_UInt      num_names, i;


    printf( "font string entries\n" );

    num_names = FT_Get_Sfnt_Name_Count( face );
    for ( i = 0; i < num_names; i++ )
    {
      error = FT_Get_Sfnt_Name( face, i, &name );
      if ( error == FT_Err_Ok )
      {
        printf( "   %-15s [%s]", name_id( name.name_id ),
                                 platform_id( name.platform_id ) );

        switch ( name.platform_id )
        {
        case TT_PLATFORM_APPLE_UNICODE:
          switch ( name.encoding_id )
          {
          case TT_APPLE_ID_DEFAULT:
          case TT_APPLE_ID_UNICODE_1_1:
          case TT_APPLE_ID_ISO_10646:
          case TT_APPLE_ID_UNICODE_2_0:
            put_unicode_be16( name.string, name.string_len, 6 );
            break;

          default:
            printf( "{unsupported encoding %d}", name.encoding_id );
            break;
          }
          break;

        case TT_PLATFORM_MACINTOSH:
          if ( name.language_id != TT_MAC_LANGID_ENGLISH )
            printf( " (language=%d)", name.language_id );
          fputs( ":\n", stdout );

          switch ( name.encoding_id )
          {
          case TT_MAC_ID_ROMAN:
            /* FIXME: convert from MacRoman to ASCII/ISO8895-1/whatever */
            /* (MacRoman is mostly like ISO8895-1 but there are         */
            /* differences)                                             */
            put_ascii( name.string, name.string_len, 6 );
            break;

          default:
            printf( "{unsupported encoding %d}", name.encoding_id );
            break;
          }

          break;

        case TT_PLATFORM_ISO:
          switch ( name.encoding_id )
          {
          case TT_ISO_ID_7BIT_ASCII:
          case TT_ISO_ID_8859_1:
            put_ascii( name.string, name.string_len, 6 );
            break;

          case TT_ISO_ID_10646:
            put_unicode_be16( name.string, name.string_len, 6 );
            break;

          default:
            printf( "{unsupported encoding %d}", name.encoding_id );
            break;
          }
          break;

        case TT_PLATFORM_MICROSOFT:
          if ( name.language_id != TT_MS_LANGID_ENGLISH_UNITED_STATES )
            printf( " (language=0x%04x)", name.language_id );
          fputs( ":\n", stdout );

          switch ( name.encoding_id )
          {
          /* TT_MS_ID_SYMBOL_CS is supposed to be Unicode, according to */
          /* information from the MS font development team              */
          case TT_MS_ID_SYMBOL_CS:
          case TT_MS_ID_UNICODE_CS:
            put_unicode_be16( name.string, name.string_len, 6 );
            break;

          default:
            printf( "{unsupported encoding %d}", name.encoding_id );
            break;
          }

          break;

        default:
          printf( "{unsupported platform}" );
          break;
        }

        printf( "\n" );
      }
    }
  }


  void
  Print_Fixed( FT_Face  face )
  {
    int  i;


    /* num_fixed_size */
    printf( "fixed size\n" );

    /* available size */
    for ( i = 0; i < face->num_fixed_sizes; i++ )
    {
      FT_Bitmap_Size*  bsize = face->available_sizes + i;


      printf( "   %3d: height %d, width %d\n",
              i, bsize->height, bsize->width );
      printf( "        size %.3f, x_ppem %.3f, y_ppem %.3f\n",
              bsize->size / 64.0,
              bsize->x_ppem / 64.0, bsize->y_ppem / 64.0 );
    }
  }


  void
  Print_Charmaps( FT_Face  face )
  {
    int  i;


    /* CharMaps */
    printf( "charmaps\n" );

    for( i = 0; i < face->num_charmaps; i++ )
    {
      printf( "   %d: platform: %d, encoding: %d\n",
              i,
              face->charmaps[i]->platform_id,
              face->charmaps[i]->encoding_id );
    }
  }


  int
  main( int    argc,
        char*  argv[] )
  {
    int    i, file;
    char   filename[128 + 4];
    char   alt_filename[128 + 4];
    char*  execname;
    int    num_faces;
    int    option;

    FT_Library  library;      /* the FreeType library */
    FT_Face     face;         /* the font face        */


    execname = ft_basename( argv[0] );

    while ( 1 )
    {
      option = getopt( argc, argv, "dl:n" );

      if ( option == -1 )
        break;

      switch ( option )
      {
      case 'd':
        debug = 1;
        break;

      case 'l':
        trace_level = atoi( optarg );
        if ( trace_level < 1 || trace_level > 7 )
          usage( execname );
        break;

      case 'n':
        name_tables = 1;
        break;

      default:
        usage( execname );
        break;
      }
    }

    argc -= optind;
    argv += optind;

    if ( argc != 1 )
      usage( execname );

#if FREETYPE_MAJOR == 2 && FREETYPE_MINOR == 0 && FREETYPE_PATCH <= 8
    if ( debug )
    {
#  ifdef FT_DEBUG_LEVEL_TRACE
      FT_SetTraceLevel( trace_any, (FT_Byte)trace_level );
#  else
      trace_level = 0;
#  endif
    }
#elif 0
       /* "setenv/putenv" is not ANSI and I don't want to mess */
       /* with this portability issue right now                */
    if ( debug )
    {
      char  temp[32];
      

      sprintf( temp, "any=%d", trace_level );
      setenv( "FT2_DEBUG", temp );
    }
#endif

    file = 0;

    /* Initialize engine */
    error = FT_Init_FreeType( &library );
    if ( error )
      PanicZ( "Could not initialize FreeType library" );

    filename[128]     = '\0';
    alt_filename[128] = '\0';

    strncpy( filename, argv[file], 128 );
    strncpy( alt_filename, argv[file], 128 );

    /* try to load the file name as is, first */
    error = FT_New_Face( library, argv[file], 0, &face );
    if ( !error )
      goto Success;

#ifndef macintosh
    i = strlen( argv[file] );
    while ( i > 0 && argv[file][i] != '\\' && argv[file][i] != '/' )
    {
      if ( argv[file][i] == '.' )
        i = 0;
      i--;
    }

    if ( i >= 0 )
    {
      strncpy( filename + strlen( filename ), ".ttf", 4 );
      strncpy( alt_filename + strlen( alt_filename ), ".ttc", 4 );
    }
#endif

    /* Load face */
    error = FT_New_Face( library, filename, 0, &face );
    if ( error )
      PanicZ( "Could not open face." );

  Success:
    num_faces = face->num_faces;
    FT_Done_Face( face );

    printf( "There %s %d %s in this file.\n",
            num_faces == 1 ? (char *)"is" : (char *)"are",
            num_faces,
            num_faces == 1 ? (char *)"face" : (char *)"faces" );

    for ( i = 0; i < num_faces; i++ )
    {
      error = FT_New_Face( library, filename, i, &face );
      if ( error )
        PanicZ( "Could not open face." );

      printf( "\n----- Face number: %d -----\n\n", i );
      Print_Name( face );
      printf( "\n" );
      Print_Type( face );

      if ( name_tables && FT_IS_SFNT( face ) )
      {
        printf( "\n" );
        Print_Sfnt_Names( face );
      }

      if ( face->num_fixed_sizes )
      {
        printf( "\n" );
        Print_Fixed( face );
      }

      if ( face->num_charmaps )
      {
        printf( "\n" );
        Print_Charmaps( face );
      }

      FT_Done_Face( face );
    }

    FT_Done_FreeType( library );

    exit( 0 );      /* for safety reasons */
    return 0;       /* never reached */
  }


/* End */