| /***************************************************************************/ |
| /* */ |
| /* ftcffdrv.h */ |
| /* */ |
| /* FreeType API for controlling the CFF driver (specification only). */ |
| /* */ |
| /* Copyright 2013 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 __FTCFFDRV_H__ |
| #define __FTCFFDRV_H__ |
| |
| #include "../ft2build.h" |
| #include "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: |
| * cff_driver |
| * |
| * @title: |
| * The CFF driver |
| * |
| * @abstract: |
| * Controlling the CFF driver module. |
| * |
| * @description: |
| * While FreeType's CFF driver doesn't expose API functions by itself, |
| * it is possible to control its behaviour with @FT_Property_Set and |
| * @FT_Property_Get. The following lists the available properties |
| * together with the necessary macros and structures. |
| * |
| * The CFF driver's module name is `cff'. |
| * |
| */ |
| |
| |
| /************************************************************************** |
| * |
| * @property: |
| * hinting-engine |
| * |
| * @description: |
| * Thanks to Adobe, which contributed a new hinting (and parsing) |
| * engine, an application can select between `freetype' and `adobe' if |
| * compiled with CFF_CONFIG_OPTION_OLD_ENGINE. If this configuration |
| * macro isn't defined, `hinting-engine' does nothing. |
| * |
| * The default engine is `freetype' if CFF_CONFIG_OPTION_OLD_ENGINE is |
| * defined, and `adobe' otherwise. |
| * |
| * The following example code demonstrates how to select Adobe's hinting |
| * engine (omitting the error handling). |
| * |
| * { |
| * FT_Library library; |
| * FT_Face face; |
| * FT_UInt hinting_engine = FT_CFF_HINTING_ADOBE; |
| * |
| * |
| * FT_Init_FreeType( &library ); |
| * |
| * FT_Property_Set( library, "cff", |
| * "hinting-engine", &hinting_engine ); |
| * } |
| * |
| * @note: |
| * This property can be used with @FT_Property_Get also. |
| * |
| */ |
| |
| |
| /************************************************************************** |
| * |
| * @enum: |
| * FT_CFF_HINTING_XXX |
| * |
| * @description: |
| * A list of constants used for the @hinting-engine property to select |
| * the hinting engine for CFF fonts. |
| * |
| * @values: |
| * FT_CFF_HINTING_FREETYPE :: |
| * Use the old FreeType hinting engine. |
| * |
| * FT_CFF_HINTING_ADOBE :: |
| * Use the hinting engine contributed by Adobe. |
| * |
| */ |
| #define FT_CFF_HINTING_FREETYPE 0 |
| #define FT_CFF_HINTING_ADOBE 1 |
| |
| |
| /************************************************************************** |
| * |
| * @property: |
| * no-stem-darkening |
| * |
| * @description: |
| * By default, the Adobe CFF engine darkens stems at smaller sizes, |
| * regardless of hinting, to enhance contrast. Setting this property, |
| * stem darkening gets switched off. |
| * |
| * Note that stem darkening is never applied if @FT_LOAD_NO_SCALE is set. |
| * |
| * { |
| * FT_Library library; |
| * FT_Face face; |
| * FT_Bool no_stem_darkening = TRUE; |
| * |
| * |
| * FT_Init_FreeType( &library ); |
| * |
| * FT_Property_Set( library, "cff", |
| * "no-stem-darkening", &no_stem_darkening ); |
| * } |
| * |
| * @note: |
| * This property can be used with @FT_Property_Get also. |
| * |
| */ |
| |
| |
| /* */ |
| |
| FT_END_HEADER |
| |
| |
| #endif /* __FTCFFDRV_H__ */ |
| |
| |
| /* END */ |