/***************************************************************************//*                                                                         *//*  ftmm.h                                                                 *//*                                                                         *//*    FreeType Multiple Master font interface (specification).             *//*                                                                         *//*  Copyright 1996-2001 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 __FTMM_H__#define __FTMM_H__#include <ft2build.h>#include FT_TYPE1_TABLES_HFT_BEGIN_HEADER  /*************************************************************************/  /*                                                                       */  /* <Section>                                                             */  /*    multiple_masters                                                   */  /*                                                                       */  /* <Title>                                                               */  /*    Multiple Masters                                                   */  /*                                                                       */  /* <Abstract>                                                            */  /*    How to manage Multiple Masters fonts.                              */  /*                                                                       */  /* <Description>                                                         */  /*    The following types and functions are used to manage Multiple      */  /*    Master fonts, i.e. the selection of specific design instances by   */  /*    setting design axis coordinates.                                   */  /*                                                                       */  /*************************************************************************/  /*************************************************************************/  /*                                                                       */  /* <Struct>                                                              */  /*    FT_MM_Axis                                                         */  /*                                                                       */  /* <Description>                                                         */  /*    A simple structure used to model a given axis in design space for  */  /*    Multiple Masters fonts.                                            */  /*                                                                       */  /* <Fields>                                                              */  /*    name    :: The axis's name.                                        */  /*                                                                       */  /*    minimum :: The axis's minimum design coordinate.                   */  /*                                                                       */  /*    maximum :: The axis's maximum design coordinate.                   */  /*                                                                       */  typedef struct  FT_MM_Axis_  {    FT_String*  name;    FT_Long     minimum;    FT_Long     maximum;  } FT_MM_Axis;  /*************************************************************************/  /*                                                                       */  /* <Struct>                                                              */  /*    FT_Multi_Master                                                    */  /*                                                                       */  /* <Description>                                                         */  /*    A structure used to model the axes and space of a Multiple Masters */  /*    font.                                                              */  /*                                                                       */  /* <Fields>                                                              */  /*    num_axis    :: Number of axes.  Cannot exceed 4.                   */  /*                                                                       */  /*    num_designs :: Number of designs; should ne normally 2^num_axis    */  /*                   even though the Type 1 specification strangely      */  /*                   allows for intermediate designs to be present. This */  /*                   number cannot exceed 16.                            */  /*                                                                       */  /*    axis        :: A table of axis descriptors.                        */  /*                                                                       */  typedef struct  FT_Multi_Master_  {    FT_UInt     num_axis;    FT_UInt     num_designs;    FT_MM_Axis  axis[T1_MAX_MM_AXIS];  } FT_Multi_Master;  /* */  typedef FT_Error  (*FT_Get_MM_Func)( FT_Face           face,                     FT_Multi_Master*  master );  typedef FT_Error  (*FT_Set_MM_Design_Func)( FT_Face   face,                            FT_UInt   num_coords,                            FT_Long*  coords );  typedef FT_Error  (*FT_Set_MM_Blend_Func)( FT_Face   face,                           FT_UInt   num_coords,                           FT_Long*  coords );  /*************************************************************************/  /*                                                                       */  /* <Function>                                                            */  /*    FT_Get_Multi_Master                                                */  /*                                                                       */  /* <Description>                                                         */  /*    Retrieves the Multiple Master descriptor of a given font.          */  /*                                                                       */  /* <Input>                                                               */  /*    face    :: A handle to the source face.                            */  /*                                                                       */  /* <Output>                                                              */  /*    amaster :: The Multiple Masters descriptor.                        */  /*                                                                       */  /* <Return>                                                              */  /*    FreeType error code.  0 means success.                             */  /*                                                                       */  FT_EXPORT( FT_Error )  FT_Get_Multi_Master( FT_Face           face,                       FT_Multi_Master  *amaster );  /*************************************************************************/  /*                                                                       */  /* <Function>                                                            */  /*    FT_Set_MM_Design_Coordinates                                       */  /*                                                                       */  /* <Description>                                                         */  /*    For Multiple Masters fonts, choose an interpolated font design     */  /*    through design coordinates.                                        */  /*                                                                       */  /* <InOut>                                                               */  /*    face       :: A handle to the source face.                         */  /*                                                                       */  /* <Input>                                                               */  /*    num_coords :: The number of design coordinates (must be equal to   */  /*                  the number of axes in the font).                     */  /*                                                                       */  /*    coords     :: An array of design coordinates.                      */  /*                                                                       */  /* <Return>                                                              */  /*    FreeType error code.  0 means success.                             */  /*                                                                       */  FT_EXPORT( FT_Error )  FT_Set_MM_Design_Coordinates( FT_Face   face,                                FT_UInt   num_coords,                                FT_Long*  coords );  /*************************************************************************/  /*                                                                       */  /* <Function>                                                            */  /*    FT_Set_MM_Blend_Coordinates                                        */  /*                                                                       */  /* <Description>                                                         */  /*    For Multiple Masters fonts, choose an interpolated font design     */  /*    through normalized blend coordinates.                              */  /*                                                                       */  /* <InOut>                                                               */  /*    face       :: A handle to the source face.                         */  /*                                                                       */  /* <Input>                                                               */  /*    num_coords :: The number of design coordinates (must be equal to   */  /*                  the number of axes in the font).                     */  /*                                                                       */  /*    coords     :: The design coordinates array (each element must be   */  /*                  between 0 and 1.0).                                  */  /*                                                                       */  /* <Return>                                                              */  /*    FreeType error code.  0 means success.                             */  /*                                                                       */  FT_EXPORT( FT_Error )  FT_Set_MM_Blend_Coordinates( FT_Face    face,                               FT_UInt    num_coords,                               FT_Fixed*  coords );  /* */FT_END_HEADER#endif /* __FTMM_H__ *//* END */