forked from minhngoc25a/freetype2
106 lines
3.7 KiB
C
106 lines
3.7 KiB
C
/***************************************************************************/
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/* */
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/* ftpcfdrv.h */
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/* */
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/* FreeType API for controlling the PCF driver (specification only). */
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/* */
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/* Copyright 2017 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 FTPCFDRV_H_
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#define FTPCFDRV_H_
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#include <ft2build.h>
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#include FT_FREETYPE_H
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#ifdef FREETYPE_H
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#error "freetype.h of FreeType 1 has been loaded!"
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#error "Please fix the directory search order for header files"
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#error "so that freetype.h of FreeType 2 is found first."
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#endif
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FT_BEGIN_HEADER
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/**************************************************************************
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*
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* @section:
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* pcf_driver
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*
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* @title:
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* The PCF driver
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*
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* @abstract:
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* Controlling the PCF driver module.
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*
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* @description:
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* While FreeType's PCF driver doesn't expose API functions by itself,
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* it is possible to control its behaviour with @FT_Property_Set and
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* @FT_Property_Get. Right now, there is a single property
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* `no-long-family-names' available if FreeType is compiled with
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* PCF_CONFIG_OPTION_LONG_FAMILY_NAMES.
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*
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* The PCF driver's module name is `pcf'.
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*
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*/
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/**************************************************************************
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*
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* @property:
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* no-long-family-names
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*
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* @description:
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* If PCF_CONFIG_OPTION_LONG_FAMILY_NAMES is active while compiling
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* FreeType, the PCF driver constructs long family names.
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*
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* There are many PCF fonts just called `Fixed' which look completely
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* different, and which have nothing to do with each other. When
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* selecting `Fixed' in KDE or Gnome one gets results that appear rather
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* random, the style changes often if one changes the size and one
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* cannot select some fonts at all. The improve this situation, the PCF
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* module prepends the foundry name (plus a space) to the family name.
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* It also checks whether there are `wide' characters; all put together,
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* family names like `Sony Fixed' or `Misc Fixed Wide' are constructed.
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*
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* If `no-long-family-names' is set, this feature gets switched off.
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*
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* {
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* FT_Library library;
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* FT_Bool no_long_family_names = TRUE;
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*
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*
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* FT_Init_FreeType( &library );
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*
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* FT_Property_Set( library, "pcf",
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* "no-long-family-names",
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* &no_long_family_names );
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* }
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*
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* @note:
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* This property can be used with @FT_Property_Get also.
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*
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* This property can be set via the `FREETYPE_PROPERTIES' environment
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* variable (using values 1 and 0 for `on' and `off', respectively).
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*
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*/
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FT_END_HEADER
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#endif /* FTPCFDRV_H_ */
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/* END */
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