class HexaPDF::Type::FontType0

Parent	HexaPDF::Type::Font

Represents a composite PDF font.

Composites fonts wrap a descendant CIDFont and use CIDs to identify glyphs. A CID can be encoded in one or more bytes and an associated CMap specifies how this encoding is done. Composite fonts also allow for vertical writing mode and support TrueType as well as OpenType fonts.

See: PDF2.0 s9.7, s9.7.6.1

Field Definitions

Name	Type/Allowed Values	Required	Default Value
Type	Symbol	true	:Font
ToUnicode	HexaPDF::Stream or Hash	false	nil
Subtype	Symbol	true	:Type0
BaseFont	Symbol	true	nil
Encoding	HexaPDF::Stream or Symbol or Hash	true	nil
DescendantFonts	HexaPDF::PDFArray or Array	true	nil

Public Instance Methods

bounding_box()¶

Returns the bounding box of the font or nil if it is not found.

decode(string)¶

Decodes the given string into an array of CIDs.

descendant_font()¶

Returns the CID font of this type 0 font.

embedded?()¶

Returns true if the font is embedded.

font_descriptor()¶

Returns the font descriptor of the descendant font.

font_file()¶

Returns the embeeded font file object or nil if the font is not embedded.

to_utf8(code)¶

Returns the UTF-8 string for the given code, or calls the configuration option ‘font.on_missing_unicode_mapping’ if no mapping was found.

width(code)¶

Returns the unscaled width of the given CID in glyph units, or 0 if the width for the code point is missing.

word_spacing_applicable?()¶

Returns whether word spacing is applicable when using this font.

Note that the return value is cached when accessed the first time.

See: PDF2.0 s9.3.3

writing_mode()¶

Returns the writing mode which is either :horizontal or :vertical.