misc/libfreetype/include/freetype/ftbdf.h
author belphegorr <szabibibi@gmail.com>
Mon, 23 Jul 2012 19:15:59 +0300
changeset 7263 644eabbc9218
parent 5172 88f2e05288ba
permissions -rw-r--r--
Added a new function: AddNewEvent, which only adds an event to the list if it doesn't already exist. Kept the old one as it might me useful to be able to add an event more than once.

/***************************************************************************/
/*                                                                         */
/*  ftbdf.h                                                                */
/*                                                                         */
/*    FreeType API for accessing BDF-specific strings (specification).     */
/*                                                                         */
/*  Copyright 2002, 2003, 2004, 2006, 2009 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 __FTBDF_H__
#define __FTBDF_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>                                                             */
  /*    bdf_fonts                                                          */
  /*                                                                       */
  /* <Title>                                                               */
  /*    BDF and PCF Files                                                  */
  /*                                                                       */
  /* <Abstract>                                                            */
  /*    BDF and PCF specific API.                                          */
  /*                                                                       */
  /* <Description>                                                         */
  /*    This section contains the declaration of functions specific to BDF */
  /*    and PCF fonts.                                                     */
  /*                                                                       */
  /*************************************************************************/


  /**********************************************************************
   *
   * @enum:
   *    FT_PropertyType
   *
   * @description:
   *    A list of BDF property types.
   *
   * @values:
   *    BDF_PROPERTY_TYPE_NONE ::
   *      Value~0 is used to indicate a missing property.
   *
   *    BDF_PROPERTY_TYPE_ATOM ::
   *      Property is a string atom.
   *
   *    BDF_PROPERTY_TYPE_INTEGER ::
   *      Property is a 32-bit signed integer.
   *
   *    BDF_PROPERTY_TYPE_CARDINAL ::
   *      Property is a 32-bit unsigned integer.
   */
  typedef enum  BDF_PropertyType_
  {
    BDF_PROPERTY_TYPE_NONE     = 0,
    BDF_PROPERTY_TYPE_ATOM     = 1,
    BDF_PROPERTY_TYPE_INTEGER  = 2,
    BDF_PROPERTY_TYPE_CARDINAL = 3

  } BDF_PropertyType;


  /**********************************************************************
   *
   * @type:
   *    BDF_Property
   *
   * @description:
   *    A handle to a @BDF_PropertyRec structure to model a given
   *    BDF/PCF property.
   */
  typedef struct BDF_PropertyRec_*  BDF_Property;


 /**********************************************************************
  *
  * @struct:
  *    BDF_PropertyRec
  *
  * @description:
  *    This structure models a given BDF/PCF property.
  *
  * @fields:
  *    type ::
  *      The property type.
  *
  *    u.atom ::
  *      The atom string, if type is @BDF_PROPERTY_TYPE_ATOM.
  *
  *    u.integer ::
  *      A signed integer, if type is @BDF_PROPERTY_TYPE_INTEGER.
  *
  *    u.cardinal ::
  *      An unsigned integer, if type is @BDF_PROPERTY_TYPE_CARDINAL.
  */
  typedef struct  BDF_PropertyRec_
  {
    BDF_PropertyType  type;
    union {
      const char*     atom;
      FT_Int32        integer;
      FT_UInt32       cardinal;

    } u;

  } BDF_PropertyRec;


 /**********************************************************************
  *
  * @function:
  *    FT_Get_BDF_Charset_ID
  *
  * @description:
  *    Retrieve a BDF font character set identity, according to
  *    the BDF specification.
  *
  * @input:
  *    face ::
  *       A handle to the input face.
  *
  * @output:
  *    acharset_encoding ::
  *       Charset encoding, as a C~string, owned by the face.
  *
  *    acharset_registry ::
  *       Charset registry, as a C~string, owned by the face.
  *
  * @return:
  *   FreeType error code.  0~means success.
  *
  * @note:
  *   This function only works with BDF faces, returning an error otherwise.
  */
  FT_EXPORT( FT_Error )
  FT_Get_BDF_Charset_ID( FT_Face       face,
                         const char*  *acharset_encoding,
                         const char*  *acharset_registry );


 /**********************************************************************
  *
  * @function:
  *    FT_Get_BDF_Property
  *
  * @description:
  *    Retrieve a BDF property from a BDF or PCF font file.
  *
  * @input:
  *    face :: A handle to the input face.
  *
  *    name :: The property name.
  *
  * @output:
  *    aproperty :: The property.
  *
  * @return:
  *   FreeType error code.  0~means success.
  *
  * @note:
  *   This function works with BDF _and_ PCF fonts.  It returns an error
  *   otherwise.  It also returns an error if the property is not in the
  *   font.
  *
  *   A `property' is a either key-value pair within the STARTPROPERTIES
  *   ... ENDPROPERTIES block of a BDF font or a key-value pair from the
  *   `info->props' array within a `FontRec' structure of a PCF font.
  *
  *   Integer properties are always stored as `signed' within PCF fonts;
  *   consequently, @BDF_PROPERTY_TYPE_CARDINAL is a possible return value
  *   for BDF fonts only.
  *
  *   In case of error, `aproperty->type' is always set to
  *   @BDF_PROPERTY_TYPE_NONE.
  */
  FT_EXPORT( FT_Error )
  FT_Get_BDF_Property( FT_Face           face,
                       const char*       prop_name,
                       BDF_PropertyRec  *aproperty );

 /* */

FT_END_HEADER

#endif /* __FTBDF_H__ */


/* END */