diff options
Diffstat (limited to 'extras/freetype2/include/freetype/ftoutln.h')
| -rw-r--r-- | extras/freetype2/include/freetype/ftoutln.h | 76 |
1 files changed, 74 insertions, 2 deletions
diff --git a/extras/freetype2/include/freetype/ftoutln.h b/extras/freetype2/include/freetype/ftoutln.h index fdf7ed298..79ed35b59 100644 --- a/extras/freetype2/include/freetype/ftoutln.h +++ b/extras/freetype2/include/freetype/ftoutln.h @@ -5,7 +5,7 @@ /* Support for the FT_Outline type used to store glyph shapes of */ /* most scalable font formats (specification). */ /* */ -/* Copyright 1996-2001, 2002 by */ +/* Copyright 1996-2001, 2002, 2003 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -24,6 +24,12 @@ #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 @@ -46,7 +52,7 @@ FT_BEGIN_HEADER /* */ /* <Order> */ /* FT_Outline */ - /* FT_Outline_Flags */ + /* FT_OUTLINE_FLAGS */ /* FT_Outline_New */ /* FT_Outline_Done */ /* FT_Outline_Copy */ @@ -389,6 +395,72 @@ FT_BEGIN_HEADER FT_Raster_Params* params ); + /************************************************************************** + * + * @enum: + * FT_Orientation + * + * @description: + * A list of values used to describe an outline's contour orientation. + * + * The TrueType and Postscript specifications use different conventions + * to determine whether outline contours should be filled or unfilled. + * + * @values: + * FT_ORIENTATION_TRUETYPE :: + * According to the TrueType specification, clockwise contours must + * be filled, and counter-clockwise ones must be unfilled. + * + * FT_ORIENTATION_POSTSCRIPT :: + * According to the Postscript specification, counter-clockwise contours + * must be filled, and clockwise ones must be unfilled. + * + * FT_ORIENTATION_FILL_RIGHT :: + * This is identical to @FT_ORIENTATION_TRUETYPE, but is used to + * remember that in TrueType, everything that is to the right of + * the drawing direction of a contour must be filled. + * + * FT_ORIENTATION_FILL_LEFT :: + * This is identical to @FT_ORIENTATION_POSTSCRIPT, but is used to + * remember that in Postscript, everything that is to the left of + * the drawing direction of a contour must be filled. + */ + typedef enum + { + FT_ORIENTATION_TRUETYPE = 0, + FT_ORIENTATION_POSTSCRIPT = 1, + FT_ORIENTATION_FILL_RIGHT = FT_ORIENTATION_TRUETYPE, + FT_ORIENTATION_FILL_LEFT = FT_ORIENTATION_POSTSCRIPT + + } FT_Orientation; + + + /************************************************************************** + * + * @function: + * FT_Outline_Get_Orientation + * + * @description: + * This function analyzes a glyph outline and tries to compute its + * fill orientation (see @FT_Orientation). This is done by computing + * the direction of each global horizontal and/or vertical extrema + * within the outline. + * + * Note that this will return @FT_ORIENTATION_TRUETYPE for empty + * outlines. + * + * @input: + * outline :: + * A handle to the source outline. + * + * @return: + * The orientation. + * + */ + FT_EXPORT( FT_Orientation ) + FT_Outline_Get_Orientation( FT_Outline* outline ); + + /* */ |