183 lines
5.8 KiB
C
183 lines
5.8 KiB
C
/***************************************************************************/
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/* */
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/* ftbdf.h */
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/* */
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/* FreeType API for accessing BDF-specific strings (specification). */
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/* */
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/* Copyright 2002 by */
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/* David Turner, Robert Wilhelm, and Werner Lemberg. */
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/* */
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/* This file is part of the FreeType project, and may only be used, */
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/* modified, and distributed under the terms of the FreeType project */
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/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
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/* this file you indicate that you have read the license and */
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/* understand and accept it fully. */
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/* */
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/***************************************************************************/
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#ifndef __FTBDF_H__
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#define __FTBDF_H__
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#include <ft2build.h>
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#include FT_FREETYPE_H
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FT_BEGIN_HEADER
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/*************************************************************************/
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/* */
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/* <Section> */
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/* bdf_fonts */
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/* */
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/* <Title> */
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/* BDF Fonts */
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/* */
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/* <Abstract> */
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/* BDF-specific APIs */
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/* */
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/* <Description> */
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/* This section contains the declaration of BDF-specific functions. */
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/* */
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/*************************************************************************/
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/**********************************************************************
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*
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* @enum:
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* FT_PropertyType
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*
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* @description:
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* list of BDF property types
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*
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* @values:
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* BDF_PROPERTY_TYPE_NONE ::
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* value 0 is used to indicate a missing property
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*
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* BDF_PROPERTY_TYPE_ATOM ::
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* property is a string atom
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*
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* BDF_PROPERTY_TYPE_INTEGER ::
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* property is a 32-bit signed integer
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*
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* BDF_PROPERTY_TYPE_CARDINAL ::
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* property is a 32-bit unsigned integer
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*/
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typedef enum
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{
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BDF_PROPERTY_TYPE_NONE = 0,
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BDF_PROPERTY_TYPE_ATOM = 1,
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BDF_PROPERTY_TYPE_INTEGER = 2,
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BDF_PROPERTY_TYPE_CARDINAL = 3
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} BDF_PropertyType;
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/**********************************************************************
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*
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* @type: BDF_Property
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*
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* @description:
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* handle to a @BDF_PropertyRec structure used to model a given
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* BDF/PCF property
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*/
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typedef struct BDF_PropertyRec_* BDF_Property;
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/**********************************************************************
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*
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* @struct: BDF_PropertyRec
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*
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* @description:
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* models a given BDF/PCF property
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*
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* @note:
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* type :: property type
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* u.atom :: atom string, when type is @BDF_PROPERTY_TYPE_ATOM
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* u.integer :: signed integer, when type is @BDF_PROPERTY_TYPE_INTEGER
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* u.cardinal :: unsigned integer, when type is @BDF_PROPERTY_TYPE_CARDINAL
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*/
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typedef struct BDF_PropertyRec_
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{
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BDF_PropertyType type;
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union {
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const char* atom;
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FT_Int32 integer;
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FT_UInt32 cardinal;
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} u;
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} BDF_PropertyRec;
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/**********************************************************************
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*
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* @function:
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* FT_Get_BDF_Charset_ID
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*
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* @description:
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* Retrieves a BDF font character set identity, according to
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* the BDF specification.
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*
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* @input:
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* face ::
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* handle to input face
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*
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* @output:
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* acharset_encoding ::
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* Charset encoding, as a C string, owned by the face.
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*
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* acharset_registry ::
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* Charset registry, as a C string, owned by the face.
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*
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* @return:
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* FreeType rror code. 0 means success.
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*
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* @note:
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* This function only works with BDF faces, returning an error otherwise.
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*/
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FT_EXPORT( FT_Error )
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FT_Get_BDF_Charset_ID( FT_Face face,
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const char* *acharset_encoding,
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const char* *acharset_registry );
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/**********************************************************************
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*
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* @function:
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* FT_Get_BDF_Property
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*
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* @description:
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* Retrieves a BDF property from a BDF or PCF font file
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*
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* @input:
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* face :: handle to input face
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* name :: property name
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*
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* @output:
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* aproperty :: the property
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*
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* @return:
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* FreeType error code. 0 means success.
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*
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* @note:
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* This function works with BDF _and_ PCF fonts. It returns an error
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* otherwise. it also returns an error when the property is not in the
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* font.
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*
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* in case of error, "aproperty->type" is always set to
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* @BDF_PROPERTY_TYPE_NONE
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*/
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FT_EXPORT( FT_Error )
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FT_Get_BDF_Property( FT_Face face,
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const char* prop_name,
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BDF_PropertyRec *aproperty );
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/* */
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FT_END_HEADER
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#endif /* __FTBDF_H__ */
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/* END */
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