Module: Fontisan::Ufo::Convert::ToPostscript

Defined in:
lib/fontisan/ufo/convert/to_postscript.rb

Overview

Shared logic for UFO → PostScript Type 1 (PFB or PFA). Used by ToPfb and ToPfa below; not registered in WRAPPER_FOR_FORMAT directly. Callers should use the format-specific modules.

Class Method Summary collapse

Class Method Details

.convert(ufo, output_path:, generator_class:, compiler: :ttf, **ps_options) ⇒ String

Returns the output_path.

Parameters:

  • ufo (Fontisan::Ufo::Font)
  • output_path (String)
  • compiler (Symbol) (defaults to: :ttf) —

    :ttf (default) or :otf

  • generator_class (Class) —

    Type1::PFBGenerator or Type1::PFAGenerator

  • ps_options (Hash) —

    forwarded to the generator (encoding, upm_scale, convert_curves)

Returns:

  • (String) —

    the output_path

Raises:

  • (ArgumentError) 


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# File 'lib/fontisan/ufo/convert/to_postscript.rb', line 20

def self.convert(ufo, output_path:, generator_class:, compiler: :ttf, **ps_options)
  compiler_class = Convert::COMPILER_FOR_FORMAT[compiler.to_sym]
  raise ArgumentError, "unknown intermediate compiler: #{compiler.inspect}" unless compiler_class

  Dir.mktmpdir do |dir|
    intermediate_path = File.join(dir, "intermediate#{ext_for(compiler)}")
    compiler_class.new(ufo).compile(output_path: intermediate_path)

    loaded = Fontisan::FontLoader.load(intermediate_path)
    bytes = generator_class.generate(loaded, ps_options)
    File.binwrite(output_path, bytes)
  end

  output_path
end