95 lines
4.5 KiB
C
95 lines
4.5 KiB
C
/***************************************************************************/
|
|
/* */
|
|
/* ftbbox.h */
|
|
/* */
|
|
/* FreeType exact bbox computation (specification). */
|
|
/* */
|
|
/* Copyright 1996-2001, 2003 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> */
|
|
/* Computes 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 walked over 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 );
|
|
|
|
|
|
/* */
|
|
|
|
|
|
FT_END_HEADER
|
|
|
|
#endif /* __FTBBOX_H__ */
|
|
|
|
|
|
/* END */
|
|
|
|
|
|
/* Local Variables: */
|
|
/* coding: utf-8 */
|
|
/* End: */
|