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