1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/modules/freetype2/include/ftbbox.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,102 @@
1.4 +/***************************************************************************/
1.5 +/* */
1.6 +/* ftbbox.h */
1.7 +/* */
1.8 +/* FreeType exact bbox computation (specification). */
1.9 +/* */
1.10 +/* Copyright 1996-2001, 2003, 2007, 2011, 2013 by */
1.11 +/* David Turner, Robert Wilhelm, and Werner Lemberg. */
1.12 +/* */
1.13 +/* This file is part of the FreeType project, and may only be used, */
1.14 +/* modified, and distributed under the terms of the FreeType project */
1.15 +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
1.16 +/* this file you indicate that you have read the license and */
1.17 +/* understand and accept it fully. */
1.18 +/* */
1.19 +/***************************************************************************/
1.20 +
1.21 +
1.22 + /*************************************************************************/
1.23 + /* */
1.24 + /* This component has a _single_ role: to compute exact outline bounding */
1.25 + /* boxes. */
1.26 + /* */
1.27 + /* It is separated from the rest of the engine for various technical */
1.28 + /* reasons. It may well be integrated in `ftoutln' later. */
1.29 + /* */
1.30 + /*************************************************************************/
1.31 +
1.32 +
1.33 +#ifndef __FTBBOX_H__
1.34 +#define __FTBBOX_H__
1.35 +
1.36 +
1.37 +#include <ft2build.h>
1.38 +#include FT_FREETYPE_H
1.39 +
1.40 +#ifdef FREETYPE_H
1.41 +#error "freetype.h of FreeType 1 has been loaded!"
1.42 +#error "Please fix the directory search order for header files"
1.43 +#error "so that freetype.h of FreeType 2 is found first."
1.44 +#endif
1.45 +
1.46 +
1.47 +FT_BEGIN_HEADER
1.48 +
1.49 +
1.50 + /*************************************************************************/
1.51 + /* */
1.52 + /* <Section> */
1.53 + /* outline_processing */
1.54 + /* */
1.55 + /*************************************************************************/
1.56 +
1.57 +
1.58 + /*************************************************************************/
1.59 + /* */
1.60 + /* <Function> */
1.61 + /* FT_Outline_Get_BBox */
1.62 + /* */
1.63 + /* <Description> */
1.64 + /* Compute the exact bounding box of an outline. This is slower */
1.65 + /* than computing the control box. However, it uses an advanced */
1.66 + /* algorithm that returns _very_ quickly when the two boxes */
1.67 + /* coincide. Otherwise, the outline Bézier arcs are traversed to */
1.68 + /* extract their extrema. */
1.69 + /* */
1.70 + /* <Input> */
1.71 + /* outline :: A pointer to the source outline. */
1.72 + /* */
1.73 + /* <Output> */
1.74 + /* abbox :: The outline's exact bounding box. */
1.75 + /* */
1.76 + /* <Return> */
1.77 + /* FreeType error code. 0~means success. */
1.78 + /* */
1.79 + /* <Note> */
1.80 + /* If the font is tricky and the glyph has been loaded with */
1.81 + /* @FT_LOAD_NO_SCALE, the resulting BBox is meaningless. To get */
1.82 + /* reasonable values for the BBox it is necessary to load the glyph */
1.83 + /* at a large ppem value (so that the hinting instructions can */
1.84 + /* properly shift and scale the subglyphs), then extracting the BBox, */
1.85 + /* which can be eventually converted back to font units. */
1.86 + /* */
1.87 + FT_EXPORT( FT_Error )
1.88 + FT_Outline_Get_BBox( FT_Outline* outline,
1.89 + FT_BBox *abbox );
1.90 +
1.91 +
1.92 + /* */
1.93 +
1.94 +
1.95 +FT_END_HEADER
1.96 +
1.97 +#endif /* __FTBBOX_H__ */
1.98 +
1.99 +
1.100 +/* END */
1.101 +
1.102 +
1.103 +/* Local Variables: */
1.104 +/* coding: utf-8 */
1.105 +/* End: */
