t1tables.h.svn-base

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/***************************************************************************/
/*                                                                         */
/*  t1tables.h                                                             */
/*                                                                         */
/*    Basic Type 1/Type 2 tables definitions and interface (specification  */
/*    only).                                                               */
/*                                                                         */
/*  Copyright 1996-2001, 2002, 2003, 2004, 2006, 2008 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.                                        */
/*                                                                         */
/***************************************************************************/


#ifndef __T1TABLES_H__
#define __T1TABLES_H__


#include <ft2build.h>
#include FT_FREETYPE_H

#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif


FT_BEGIN_HEADER


  /*************************************************************************/
  /*                                                                       */
  /* <Section>                                                             */
  /*    type1_tables                                                       */
  /*                                                                       */
  /* <Title>                                                               */
  /*    Type 1 Tables                                                      */
  /*                                                                       */
  /* <Abstract>                                                            */
  /*    Type~1 (PostScript) specific font tables.                          */
  /*                                                                       */
  /* <Description>                                                         */
  /*    This section contains the definition of Type 1-specific tables,    */
  /*    including structures related to other PostScript font formats.     */
  /*                                                                       */
  /*************************************************************************/


  /* Note that we separate font data in PS_FontInfoRec and PS_PrivateRec */
  /* structures in order to support Multiple Master fonts.               */


  /*************************************************************************/
  /*                                                                       */
  /* <Struct>                                                              */
  /*    PS_FontInfoRec                                                     */
  /*                                                                       */
  /* <Description>                                                         */
  /*    A structure used to model a Type~1 or Type~2 FontInfo dictionary.  */
  /*    Note that for Multiple Master fonts, each instance has its own     */
  /*    FontInfo dictionary.                                               */
  /*                                                                       */
  typedef struct  PS_FontInfoRec_
  {
    FT_String*  version;
    FT_String*  notice;
    FT_String*  full_name;
    FT_String*  family_name;
    FT_String*  weight;
    FT_Long     italic_angle;
    FT_Bool     is_fixed_pitch;
    FT_Short    underline_position;
    FT_UShort   underline_thickness;

  } PS_FontInfoRec;


  /*************************************************************************/
  /*                                                                       */
  /* <Struct>                                                              */
  /*    PS_FontInfo                                                        */
  /*                                                                       */
  /* <Description>                                                         */
  /*    A handle to a @PS_FontInfoRec structure.                           */
  /*                                                                       */
  typedef struct PS_FontInfoRec_*  PS_FontInfo;


  /*************************************************************************/
  /*                                                                       */
  /* <Struct>                                                              */
  /*    T1_FontInfo                                                        */
  /*                                                                       */
  /* <Description>                                                         */
  /*    This type is equivalent to @PS_FontInfoRec.  It is deprecated but  */
  /*    kept to maintain source compatibility between various versions of  */
  /*    FreeType.                                                          */
  /*                                                                       */
  typedef PS_FontInfoRec  T1_FontInfo;


  /*************************************************************************/
  /*                                                                       */
  /* <Struct>                                                              */
  /*    PS_PrivateRec                                                      */
  /*                                                                       */
  /* <Description>                                                         */
  /*    A structure used to model a Type~1 or Type~2 private dictionary.   */
  /*    Note that for Multiple Master fonts, each instance has its own     */
  /*    Private dictionary.                                                */
  /*                                                                       */
  typedef struct  PS_PrivateRec_
  {
    FT_Int     unique_id;
    FT_Int     lenIV;

    FT_Byte    num_blue_values;
    FT_Byte    num_other_blues;
    FT_Byte    num_family_blues;
    FT_Byte    num_family_other_blues;

    FT_Short   blue_values[14];
    FT_Short   other_blues[10];

    FT_Short   family_blues      [14];
    FT_Short   family_other_blues[10];

    FT_Fixed   blue_scale;
    FT_Int     blue_shift;
    FT_Int     blue_fuzz;

    FT_UShort  standard_width[1];
    FT_UShort  standard_height[1];

    FT_Byte    num_snap_widths;
    FT_Byte    num_snap_heights;
    FT_Bool    force_bold;
    FT_Bool    round_stem_up;

    FT_Short   snap_widths [13];  /* including std width  */
    FT_Short   snap_heights[13];  /* including std height */

    FT_Fixed   expansion_factor;

    FT_Long    language_group;
    FT_Long    password;

    FT_Short   min_feature[2];

  } PS_PrivateRec;


  /*************************************************************************/
  /*                                                                       */
  /* <Struct>                                                              */
  /*    PS_Private                                                         */
  /*                                                                       */
  /* <Description>                                                         */
  /*    A handle to a @PS_PrivateRec structure.                            */
  /*                                                                       */
  typedef struct PS_PrivateRec_*  PS_Private;


  /*************************************************************************/
  /*                                                                       */
  /* <Struct>                                                              */
  /*    T1_Private                                                         */
  /*                                                                       */
  /* <Description>                                                         */
  /*   This type is equivalent to @PS_PrivateRec.  It is deprecated but    */
  /*   kept to maintain source compatibility between various versions of   */
  /*   FreeType.                                                           */
  /*                                                                       */
  typedef PS_PrivateRec  T1_Private;


  /*************************************************************************/
  /*                                                                       */
  /* <Enum>                                                                */
  /*    T1_Blend_Flags                                                     */
  /*                                                                       */
  /* <Description>                                                         */
  /*    A set of flags used to indicate which fields are present in a      */
  /*    given blend dictionary (font info or private).  Used to support    */
  /*    Multiple Masters fonts.                                            */
  /*                                                                       */
  typedef enum  T1_Blend_Flags_
  {
    /*# required fields in a FontInfo blend dictionary */
    T1_BLEND_UNDERLINE_POSITION = 0,
    T1_BLEND_UNDERLINE_THICKNESS,
    T1_BLEND_ITALIC_ANGLE,

    /*# required fields in a Private blend dictionary */
    T1_BLEND_BLUE_VALUES,
    T1_BLEND_OTHER_BLUES,
    T1_BLEND_STANDARD_WIDTH,
    T1_BLEND_STANDARD_HEIGHT,
    T1_BLEND_STEM_SNAP_WIDTHS,
    T1_BLEND_STEM_SNAP_HEIGHTS,
    T1_BLEND_BLUE_SCALE,
    T1_BLEND_BLUE_SHIFT,
    T1_BLEND_FAMILY_BLUES,
    T1_BLEND_FAMILY_OTHER_BLUES,
    T1_BLEND_FORCE_BOLD,

    /*# never remove */
    T1_BLEND_MAX

  } T1_Blend_Flags;

  /* */


  /*# backwards compatible definitions */
#define t1_blend_underline_position   T1_BLEND_UNDERLINE_POSITION
#define t1_blend_underline_thickness  T1_BLEND_UNDERLINE_THICKNESS
#define t1_blend_italic_angle         T1_BLEND_ITALIC_ANGLE
#define t1_blend_blue_values          T1_BLEND_BLUE_VALUES
#define t1_blend_other_blues          T1_BLEND_OTHER_BLUES
#define t1_blend_standard_widths      T1_BLEND_STANDARD_WIDTH
#define t1_blend_standard_height      T1_BLEND_STANDARD_HEIGHT
#define t1_blend_stem_snap_widths     T1_BLEND_STEM_SNAP_WIDTHS
#define t1_blend_stem_snap_heights    T1_BLEND_STEM_SNAP_HEIGHTS
#define t1_blend_blue_scale           T1_BLEND_BLUE_SCALE
#define t1_blend_blue_shift           T1_BLEND_BLUE_SHIFT
#define t1_blend_family_blues         T1_BLEND_FAMILY_BLUES
#define t1_blend_family_other_blues   T1_BLEND_FAMILY_OTHER_BLUES
#define t1_blend_force_bold           T1_BLEND_FORCE_BOLD
#define t1_blend_max                  T1_BLEND_MAX


  /* maximum number of Multiple Masters designs, as defined in the spec */
#define T1_MAX_MM_DESIGNS     16

  /* maximum number of Multiple Masters axes, as defined in the spec */
#define T1_MAX_MM_AXIS        4

  /* maximum number of elements in a design map */
#define T1_MAX_MM_MAP_POINTS  20


  /* this structure is used to store the BlendDesignMap entry for an axis */
  typedef struct  PS_DesignMap_
  {
    FT_Byte    num_points;
    FT_Long*   design_points;