ftdump.c

freetype库的应用demo,里面包含freetype的很多实例

/****************************************************************************/
/*                                                                          */
/*  The FreeType project -- a free and portable quality TrueType renderer.  */
/*                                                                          */
/*  Copyright 1996-2000, 2003, 2004 by                                      */
/*  D. Turner, R.Wilhelm, and W. Lemberg                                    */
/*                                                                          */
/****************************************************************************/


#include <ft2build.h>
#include FT_FREETYPE_H
#include FT_SFNT_NAMES_H
#include FT_TRUETYPE_IDS_H

  /* the following header shouldn't be used in normal programs */
#include FT_INTERNAL_DEBUG_H

  /* showing driver name */
#include FT_MODULE_H
#include FT_INTERNAL_OBJECTS_H
#include FT_INTERNAL_DRIVER_H

#include "common.h"

#include <stdio.h>
#include <stdlib.h>
#include <string.h>


  FT_Error  error;

  int  comma_flag  = 0;
  int  debug       = 0;
  int  trace_level = 0;
  int  name_tables = 0;


  /* PanicZ */
  static
  void  PanicZ( const char*  message )
  {
    fprintf( stderr, "%s\n  error = 0x%04x\n", message, error );
    exit( 1 );
  }


  void
  Print_Comma( const char*  message )
  {
    if ( comma_flag )
      printf( ", " );

    printf( "%s", message );
    comma_flag = 1;
  }


  static void
  usage( char*  execname )
  {
    fprintf( stderr, "\n" );
    fprintf( stderr, "ftdump: simple font dumper -- part of the FreeType project\n" );
    fprintf( stderr, "-----------------------------------------------------------\n" );
    fprintf( stderr, "\n" );
    fprintf( stderr, "Usage: %s [options] fontname\n", execname );
    fprintf( stderr, "\n" );
#if FREETYPE_MAJOR == 2 && FREETYPE_MINOR == 0 && FREETYPE_PATCH <= 8
    fprintf( stderr, "  -d        enable debug information\n" );
#  ifdef FT_DEBUG_LEVEL_TRACE
    fprintf( stderr, "  -l level  trace level for debug information\n" );
#  endif
#endif
    fprintf( stderr, "  -n        print SFNT name tables\n" );
    fprintf( stderr, "\n" );

    exit( 1 );
  }


  void
  Print_Name( FT_Face  face )
  {
    const char*  ps_name;
    

    printf( "font name entries\n" );

    /* XXX: Foundry?  Copyright?  Version? ... */

    printf( "   family:     %s\n", face->family_name );
    printf( "   style:      %s\n", face->style_name );
    
    ps_name = FT_Get_Postscript_Name( face );
    if ( ps_name == NULL )
      ps_name = "UNAVAILABLE";
    
    printf( "   postscript: %s\n", ps_name );
  }


  void
  Print_Type( FT_Face  face )
  {
    FT_ModuleRec*  module;


    printf( "font type entries\n" );

    module = &face->driver->root;
    printf( "   FreeType driver: %s\n", module->clazz->module_name );

    /* Is it better to dump all sfnt tag names? */
    printf( "   sfnt wrapped:    %s\n",
            FT_IS_SFNT( face ) ? (char *)"yes" : (char *)"no" );

    /* isScalable? */
    comma_flag = 0;
    printf( "   type:            " );
    if ( FT_IS_SCALABLE( face ) )
    {
      Print_Comma( "scalable" );
      if ( FT_HAS_MULTIPLE_MASTERS( face ) )
        Print_Comma( "multiple masters" );
    }
    if ( FT_HAS_FIXED_SIZES( face ) )
      Print_Comma( "fixed size" );
    printf( "\n" );

    /* Direction */
    comma_flag = 0;
    printf( "   direction:       " );
    if ( FT_HAS_HORIZONTAL( face ) )
      Print_Comma( "horizontal" );

    if ( FT_HAS_VERTICAL( face ) )
      Print_Comma( "vertical" );

    printf( "\n" );

    printf( "   fixed width:     %s\n",
            FT_IS_FIXED_WIDTH( face ) ? (char *)"yes" : (char *)"no" );

    printf( "   glyph names:     %s\n",
            FT_HAS_GLYPH_NAMES( face ) ? (char *)"yes" : (char *)"no" );
    
    if ( FT_IS_SCALABLE( face ) )
    {
      printf( "   EM size:         %d\n", face->units_per_EM );
      printf( "   global BBox:     (%ld,%ld):(%ld,%ld)\n",
              face->bbox.xMin, face->bbox.yMin,
              face->bbox.xMax, face->bbox.yMax );
      printf( "   ascent:          %d\n", face->ascender );
      printf( "   descent:         %d\n", face->descender );
      printf( "   text height:     %d\n", face->height );
    }
  }

  static const char*
  platform_id( int  id )
  {
    switch ( id )
    {
    case TT_PLATFORM_APPLE_UNICODE:
      return "Apple (Unicode)";
    case TT_PLATFORM_MACINTOSH:
      return "Macintosh";
    case TT_PLATFORM_ISO:
      return "ISO (deprecated)";
    case TT_PLATFORM_MICROSOFT:
      return "Microsoft";
    case TT_PLATFORM_CUSTOM:
      return "custom";
    case TT_PLATFORM_ADOBE:
      return "Adobe";

    default:
      return "UNKNOWN";
    }
  }


  static const char*
  name_id( int  id )
  {
    switch ( id )
    {
    case TT_NAME_ID_COPYRIGHT:
      return "copyright";
    case TT_NAME_ID_FONT_FAMILY:
      return "font family";
    case TT_NAME_ID_FONT_SUBFAMILY:
      return "font subfamily";
    case TT_NAME_ID_UNIQUE_ID:
      return "unique ID";
    case TT_NAME_ID_FULL_NAME:
      return "full name";
    case TT_NAME_ID_VERSION_STRING:
      return "version string";
    case TT_NAME_ID_PS_NAME:
      return "PostScript name";
    case TT_NAME_ID_TRADEMARK:
      return "trademark";

   /* the following values are from the OpenType spec */
    case TT_NAME_ID_MANUFACTURER:
      return "manufacturer";
    case TT_NAME_ID_DESIGNER:
      return "designer";
    case TT_NAME_ID_DESCRIPTION:
      return "description";
    case TT_NAME_ID_VENDOR_URL:
      return "vendor URL";
    case TT_NAME_ID_DESIGNER_URL:
      return "designer URL";
    case TT_NAME_ID_LICENSE:
      return "license";
    case TT_NAME_ID_LICENSE_URL:
      return "license URL";
    /* number 15 is reserved */
    case TT_NAME_ID_PREFERRED_FAMILY:
      return "preferred family";
    case TT_NAME_ID_PREFERRED_SUBFAMILY:
      return "preferred subfamily";
    case TT_NAME_ID_MAC_FULL_NAME:
      return "Mac full name";

   /* The following code is new as of 2000-01-21 */
    case TT_NAME_ID_SAMPLE_TEXT:
      return "sample text";

   /* This is new in OpenType 1.3 */
    case TT_NAME_ID_CID_FINDFONT_NAME:
      return "CID `findfont' name";

    default:
      return "UNKNOWN";
    }
  }


  static void
  put_ascii( FT_Byte*  string,
             FT_UInt   string_len,
             FT_UInt   indent )
  {
    FT_UInt  i, j;


    for ( j = 0; j < indent; j++ )
      putchar( ' ' );
    putchar( '"' );

    for ( i = 0; i < string_len; i++ )
    {
      switch ( string[i] )
      {
      case '\n':
        fputs( "\\n\"", stdout );
        if ( i + 1 < string_len )
        {
          putchar( '\n' );
          for ( j = 0; j < indent; j++ )
            putchar( ' ' );
          putchar( '"' );
        }
        break;
      case '\r':
        fputs( "\\r", stdout );
        break;
      case '\t':
        fputs( "\\t", stdout );
        break;
      case '\\':
        fputs( "\\\\", stdout );
        break;
      case '"':
        fputs( "\\\"", stdout );
        break;

      default:
        putchar( string[i] );
        break;
      }
    }
    if ( string[i - 1] != '\n' )
      putchar( '"' );
  }


  static void
  put_unicode_be16( FT_Byte*  string,
                    FT_UInt   string_len,
                    FT_UInt   indent )
  {
    FT_Int   ch = 0;
    FT_UInt  i, j;


    for ( j = 0; j < indent; j++ )
      putchar( ' ' );
    putchar( '"' );

    for ( i = 0; i < string_len; i += 2 )
    {
      ch = ( string[i] << 8 ) | string[i + 1];

      switch ( ch )
      {
      case '\n':
        fputs( "\\n\"", stdout );
        if ( i + 2 < string_len )
        {
          putchar( '\n' );
          for ( j = 0; j < indent; j++ )
            putchar( ' ' );
          putchar( '"' );
        }
        break;
      case '\r':
        fputs( "\\r", stdout );
        break;
      case '\t':
        fputs( "\\t", stdout );
        break;
      case '\\':
        fputs( "\\\\", stdout );
        break;
      case '"':
        fputs( "\\\"", stdout );
        break;

      case 0x00A9:
        fputs( "(c)", stdout );
        break;
      case 0x00AE:
        fputs( "(r)", stdout );
        break;