Glyph

Description

This is an introspective class for looking up glyphs from font encodings.

Example

use PDF::Font::Loader::Glyph;

# load from character encodings
my PDF::Font::Loader::Glyph @glyphs = $font.glyphs: "Hi";
say @glyphs[0].raku; # Glyph.new(:name<H>, :code-point(72),  :cid(48), :gid(26), :ax(823), :ay(0))
say @glyphs[1].raku; # Glyph.new(:name<i>, :code-point(105), :cid(4),  :gid(21), :ax(334), :ay(0)

# load from CIDs
@glyphs = $font.glyphs: [48, 4];

Methods

code-point

The Unicode code-point for the glyph.

If the font has been loaded from a PDF dictionary. The glyph may not have a Unicode font mapping. In this case, `code-point` will be zero.

name

Glyph name.

cid

The PDF logical character identifier for the glyph

gid

Actual glyph identifier for the glyph. This is the index into the font's associated `face` object.

For `Identity-H` and `Identity-V` encoded fonts and other fonts without a `cid-to-gid-map` table, the `gid` will be the same as the `cid`.

ax

The width (horizontal displacement to the next glyph). The value should be multiplied by font-size / 1000 to compute the actual displacement.

Note that the width of a glyph can be indirectly set or altered via the font object:

`$font.glyph-width('i') -= 100`

ay

The height (vertical displacement to the next glyph) for a vertically written glyph. This method is not-yet-implemented, and always returns zero.

sx

The actual width of the glyph in the current font. This may vary from `ax` if a width has been set for the glyph, or when a font has been substituted while loading an unembedded or core font from a PDF dictionary.