0,0 → 1,94 |
/***************************************************************************/ |
/* */ |
/* ftbbox.h */ |
/* */ |
/* FreeType exact bbox computation (specification). */ |
/* */ |
/* Copyright 1996-2001, 2003, 2007 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. */ |
/* */ |
/***************************************************************************/ |
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/*************************************************************************/ |
/* */ |
/* This component has a _single_ role: to compute exact outline bounding */ |
/* boxes. */ |
/* */ |
/* It is separated from the rest of the engine for various technical */ |
/* reasons. It may well be integrated in `ftoutln' later. */ |
/* */ |
/*************************************************************************/ |
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#ifndef __FTBBOX_H__ |
#define __FTBBOX_H__ |
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#include <ft2build.h> |
#include FT_FREETYPE_H |
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#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 |
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FT_BEGIN_HEADER |
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/*************************************************************************/ |
/* */ |
/* <Section> */ |
/* outline_processing */ |
/* */ |
/*************************************************************************/ |
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/*************************************************************************/ |
/* */ |
/* <Function> */ |
/* FT_Outline_Get_BBox */ |
/* */ |
/* <Description> */ |
/* Compute the exact bounding box of an outline. This is slower */ |
/* than computing the control box. However, it uses an advanced */ |
/* algorithm which returns _very_ quickly when the two boxes */ |
/* coincide. Otherwise, the outline Bézier arcs are traversed to */ |
/* extract their extrema. */ |
/* */ |
/* <Input> */ |
/* outline :: A pointer to the source outline. */ |
/* */ |
/* <Output> */ |
/* abbox :: The outline's exact bounding box. */ |
/* */ |
/* <Return> */ |
/* FreeType error code. 0~means success. */ |
/* */ |
FT_EXPORT( FT_Error ) |
FT_Outline_Get_BBox( FT_Outline* outline, |
FT_BBox *abbox ); |
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/* */ |
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FT_END_HEADER |
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#endif /* __FTBBOX_H__ */ |
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/* END */ |
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/* Local Variables: */ |
/* coding: utf-8 */ |
/* End: */ |