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ftsizes.h
资源名称：wow-313-source.rar　[点击查看]
上传用户：yisoukefu
上传日期：2020-08-09
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文件大小：9k
源码类别：

其他游戏

开发平台：

Visual C++

ftsizes.h：源码内容
  1. /***************************************************************************/
  2. /*                                                                         */
  3. /*  ftsizes.h                                                              */
  4. /*                                                                         */
  5. /*    FreeType size objects management (specification).                    */
  6. /*                                                                         */
  7. /*  Copyright 1996-2001, 2003, 2004, 2006 by                               */
  8. /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
  9. /*                                                                         */
  10. /*  This file is part of the FreeType project, and may only be used,       */
  11. /*  modified, and distributed under the terms of the FreeType project      */
  12. /*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
  13. /*  this file you indicate that you have read the license and              */
  14. /*  understand and accept it fully.                                        */
  15. /*                                                                         */
  16. /***************************************************************************/
  19.   /*************************************************************************/
  20.   /*                                                                       */
  21.   /* Typical application would normally not need to use these functions.   */
  22.   /* However, they have been placed in a public API for the rare cases     */
  23.   /* where they are needed.                                                */
  24.   /*                                                                       */
  25.   /*************************************************************************/
  28. #ifndef __FTSIZES_H__
  29. #define __FTSIZES_H__
  32. #include <ft2build.h>
  33. #include FT_FREETYPE_H
  35. #ifdef FREETYPE_H
  36. #error "freetype.h of FreeType 1 has been loaded!"
  37. #error "Please fix the directory search order for header files"
  38. #error "so that freetype.h of FreeType 2 is found first."
  39. #endif
  42. FT_BEGIN_HEADER
  45.   /*************************************************************************/
  46.   /*                                                                       */
  47.   /* <Section>                                                             */
  48.   /*    sizes_management                                                   */
  49.   /*                                                                       */
  50.   /* <Title>                                                               */
  51.   /*    Size Management                                                    */
  52.   /*                                                                       */
  53.   /* <Abstract>                                                            */
  54.   /*    Managing multiple sizes per face.                                  */
  55.   /*                                                                       */
  56.   /* <Description>                                                         */
  57.   /*    When creating a new face object (e.g., with @FT_New_Face), an      */
  58.   /*    @FT_Size object is automatically created and used to store all     */
  59.   /*    pixel-size dependent information, available in the `face->size'    */
  60.   /*    field.                                                             */
  61.   /*                                                                       */
  62.   /*    It is however possible to create more sizes for a given face,      */
  63.   /*    mostly in order to manage several character pixel sizes of the     */
  64.   /*    same font family and style.  See @FT_New_Size and @FT_Done_Size.   */
  65.   /*                                                                       */
  66.   /*    Note that @FT_Set_Pixel_Sizes and @FT_Set_Char_Size only           */
  67.   /*    modify the contents of the current `active' size; you thus need    */
  68.   /*    to use @FT_Activate_Size to change it.                             */
  69.   /*                                                                       */
  70.   /*    99% of applications won't need the functions provided here,        */
  71.   /*    especially if they use the caching sub-system, so be cautious      */
  72.   /*    when using these.                                                  */
  73.   /*                                                                       */
  74.   /*************************************************************************/
  77.   /*************************************************************************/
  78.   /*                                                                       */
  79.   /* <Function>                                                            */
  80.   /*    FT_New_Size                                                        */
  81.   /*                                                                       */
  82.   /* <Description>                                                         */
  83.   /*    Create a new size object from a given face object.                 */
  84.   /*                                                                       */
  85.   /* <Input>                                                               */
  86.   /*    face :: A handle to a parent face object.                          */
  87.   /*                                                                       */
  88.   /* <Output>                                                              */
  89.   /*    asize :: A handle to a new size object.                            */
  90.   /*                                                                       */
  91.   /* <Return>                                                              */
  92.   /*    FreeType error code.  0 means success.                             */
  93.   /*                                                                       */
  94.   /* <Note>                                                                */
  95.   /*    You need to call @FT_Activate_Size in order to select the new size */
  96.   /*    for upcoming calls to @FT_Set_Pixel_Sizes, @FT_Set_Char_Size,      */
  97.   /*    @FT_Load_Glyph, @FT_Load_Char, etc.                                */
  98.   /*                                                                       */
  99.   FT_EXPORT( FT_Error )
  100.   FT_New_Size( FT_Face   face,
  101.                FT_Size*  size );
  104.   /*************************************************************************/
  105.   /*                                                                       */
  106.   /* <Function>                                                            */
  107.   /*    FT_Done_Size                                                       */
  108.   /*                                                                       */
  109.   /* <Description>                                                         */
  110.   /*    Discard a given size object.  Note that @FT_Done_Face              */
  111.   /*    automatically discards all size objects allocated with             */
  112.   /*    @FT_New_Size.                                                      */
  113.   /*                                                                       */
  114.   /* <Input>                                                               */
  115.   /*    size :: A handle to a target size object.                          */
  116.   /*                                                                       */
  117.   /* <Return>                                                              */
  118.   /*    FreeType error code.  0 means success.                             */
  119.   /*                                                                       */
  120.   FT_EXPORT( FT_Error )
  121.   FT_Done_Size( FT_Size  size );
  124.   /*************************************************************************/
  125.   /*                                                                       */
  126.   /* <Function>                                                            */
  127.   /*    FT_Activate_Size                                                   */
  128.   /*                                                                       */
  129.   /* <Description>                                                         */
  130.   /*    Even though it is possible to create several size objects for a    */
  131.   /*    given face (see @FT_New_Size for details), functions like          */
  132.   /*    @FT_Load_Glyph or @FT_Load_Char only use the last-created one to   */
  133.   /*    determine the `current character pixel size'.                      */
  134.   /*                                                                       */
  135.   /*    This function can be used to `activate' a previously created size  */
  136.   /*    object.                                                            */
  137.   /*                                                                       */
  138.   /* <Input>                                                               */
  139.   /*    size :: A handle to a target size object.                          */
  140.   /*                                                                       */
  141.   /* <Return>                                                              */
  142.   /*    FreeType error code.  0 means success.                             */
  143.   /*                                                                       */
  144.   /* <Note>                                                                */
  145.   /*    If `face' is the size's parent face object, this function changes  */
  146.   /*    the value of `face->size' to the input size handle.                */
  147.   /*                                                                       */
  148.   FT_EXPORT( FT_Error )
  149.   FT_Activate_Size( FT_Size  size );
  151.   /* */
  154. FT_END_HEADER
  156. #endif /* __FTSIZES_H__ */
  159. /* END */