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Added new `ft_glyph_bbox_unscaled' enum; fixing documentation of

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FT_Glyph_Get_CBox().

ftnames.c has been omitted from the Makefile.
This commit is contained in:
Werner Lemberg 2000-10-11 23:31:12 +00:00
parent 3d568ac772
commit a7096374ee
3 changed files with 38 additions and 18 deletions
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28
include/freetype/ftglyph.h
View File

@ -218,8 +218,9 @@
enum
{
ft_glyph_bbox_unscaled = 0, /* return unscaled font units */
ft_glyph_bbox_subpixels = 0, /* return unfitted 26.6 coordinates */
ft_glyph_bbox_gridfit = 1, /* return grid-fitted coordinates */
ft_glyph_bbox_gridfit = 1, /* return grid-fitted 26.6 coordinates */
ft_glyph_bbox_truncate = 2, /* return coordinates in integer pixels */
ft_glyph_bbox_pixels = 3 /* return grid-fitted pixel coordinates */
};
@ -236,8 +237,8 @@
/* <Input> */
/* glyph :: A handle to the source glyph object. */
/* */
/* mode :: A set of bit flags that indicate how to interpret the */
/* returned bounding box values. */
/* mode :: The mode which indicates how to interpret the returned */
/* bounding box values. */
/* */
/* <Output> */
/* box :: The glyph bounding box. Coordinates are expressed in */
@ -247,9 +248,12 @@
/* Coordinates are relative to the glyph origin, using the Y-upwards */
/* convention. */
/* */
/* If `ft_glyph_bbox_subpixels' is set in `mode', the bbox */
/* If the glyph has been loaded with FT_LOAD_NO_SCALE, `bbox_mode' */
/* must be set to `ft_glyph_bbox_unscaled' to get unscaled font */
/* units. */
/* */
/* If `bbox_mode' is set to `ft_glyph_bbox_subpixels' the bbox */
/* coordinates are returned in 26.6 pixels (i.e. 1/64th of pixels). */
/* Otherwise, coordinates are expressed in integer pixels. */
/* */
/* Note that the maximum coordinates are exclusive, which means that */
/* one can compute the width and height of the glyph image (be it in */
@ -258,16 +262,22 @@
/* width = bbox.xMax - bbox.xMin; */
/* height = bbox.yMax - bbox.yMin; */
/* */
/* Note also that for 26.6 coordinates, if the */
/* `ft_glyph_bbox_gridfit' flag is set in `mode;, the coordinates */
/* will also be grid-fitted, which corresponds to: */
/* Note also that for 26.6 coordinates, if `bbox_mode' is set to */
/* `ft_glyph_bbox_gridfit', the coordinates will also be grid-fitted, */
/* which corresponds to: */
/* */
/* bbox.xMin = FLOOR(bbox.xMin); */
/* bbox.yMin = FLOOR(bbox.yMin); */
/* bbox.xMax = CEILING(bbox.xMax); */
/* bbox.yMax = CEILING(bbox.yMax); */
/* */
/* The default value (0) for `bbox_mode' is `ft_glyph_bbox_pixels'. */
/* To get the bbox in pixel coordinates, set `bbox_mode' to */
/* `ft_glyph_bbox_truncate'. */
/* */
/* To get the bbox in grid-fitted pixel coordinates, set `bbox_mode' */
/* to `ft_glyph_bbox_pixels'. */
/* */
/* The default value for `bbox_mode' is `ft_glyph_bbox_pixels'. */
/* */
FT_EXPORT_DEF( void ) FT_Glyph_Get_CBox( FT_Glyph glyph,
FT_UInt bbox_mode,

25
src/base/ftglyph.c
View File

@ -602,8 +602,8 @@
/* <Input> */
/* glyph :: A handle to the source glyph object. */
/* */
/* mode :: A set of bit flags that indicate how to interpret the */
/* returned bounding box values. */
/* mode :: The mode which indicates how to interpret the returned */
/* bounding box values. */
/* */
/* <Output> */
/* box :: The glyph bounding box. Coordinates are expressed in */
@ -613,9 +613,12 @@
/* Coordinates are relative to the glyph origin, using the Y-upwards */
/* convention. */
/* */
/* If `ft_glyph_bbox_subpixels' is set in `mode', the bbox */
/* If the glyph has been loaded with FT_LOAD_NO_SCALE, `bbox_mode' */
/* must be set to `ft_glyph_bbox_unscaled' to get unscaled font */
/* units. */
/* */
/* If `bbox_mode' is set to `ft_glyph_bbox_subpixels' the bbox */
/* coordinates are returned in 26.6 pixels (i.e. 1/64th of pixels). */
/* Otherwise, coordinates are expressed in integer pixels. */
/* */
/* Note that the maximum coordinates are exclusive, which means that */
/* one can compute the width and height of the glyph image (be it in */
@ -624,16 +627,22 @@
/* width = bbox.xMax - bbox.xMin; */
/* height = bbox.yMax - bbox.yMin; */
/* */
/* Note also that for 26.6 coordinates, if the */
/* `ft_glyph_bbox_gridfit' flag is set in `mode;, the coordinates */
/* will also be grid-fitted, which corresponds to: */
/* Note also that for 26.6 coordinates, if `bbox_mode' is set to */
/* `ft_glyph_bbox_gridfit', the coordinates will also be grid-fitted, */
/* which corresponds to: */
/* */
/* bbox.xMin = FLOOR(bbox.xMin); */
/* bbox.yMin = FLOOR(bbox.yMin); */
/* bbox.xMax = CEILING(bbox.xMax); */
/* bbox.yMax = CEILING(bbox.yMax); */
/* */
/* The default value (0) for `bbox_mode' is `ft_glyph_bbox_pixels'. */
/* To get the bbox in pixel coordinates, set `bbox_mode' to */
/* `ft_glyph_bbox_truncate'. */
/* */
/* To get the bbox in grid-fitted pixel coordinates, set `bbox_mode' */
/* to `ft_glyph_bbox_pixels'. */
/* */
/* The default value for `bbox_mode' is `ft_glyph_bbox_pixels'. */
/* */
FT_EXPORT_FUNC( void ) FT_Glyph_Get_CBox( FT_Glyph glyph,
FT_UInt bbox_mode,

3
src/base/rules.mk
View File

@ -45,7 +45,8 @@ BASE_SRC := $(BASE_)ftcalc.c \
# object. It will then be linked to the final executable only if one of its
# symbols is used by the application.
#
BASE_EXT_SRC := $(BASE_)ftglyph.c \
BASE_EXT_SRC := $(BASE_)ftglyph.c \
$(BASE_)ftnames.c \
$(BASE_)ftmm.c
# Default extensions objects