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/***************************************************************************/
/*
*/
/* ftbbox.h
*/
/*
*/
/* FreeType exact bbox computation (specification).
*/
/*
*/
/* Copyright 1996-2017 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.
*/
/*
*/
/***************************************************************************/
/*************************************************************************/
/*
*/
/* 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.
*/
/*
*/
/*************************************************************************/
#ifndef FTBBOX_H_
#define FTBBOX_H_
#include <ft2build.h>
#include FT_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>
*/
/* outline_processing
*/
/*
*/
/*************************************************************************/
/*************************************************************************/
/*
*/
/* <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 that 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.
*/
/*
*/
/* <Note>
*/
/* If the font is tricky and the glyph has been loaded with
*/
/* @FT_LOAD_NO_SCALE, the resulting BBox is meaningless. To get
*/
/* reasonable values for the BBox it is necessary to load the glyph
*/
/* at a large ppem value (so that the hinting instructions can
*/
/* properly shift and scale the subglyphs), then extracting the BBox,
*/
/* which can be eventually converted back to font units.
*/
/*
*/
FT_EXPORT( FT_Error )
FT_Outline_Get_BBox( FT_Outline* outline,
FT_BBox *abbox );
/* */
FT_END_HEADER
#endif /* FTBBOX_H_ */
/* END */
/* Local Variables: */
/* coding: utf-8 */
/* End: */