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