Class: Prawn::Fonts::DFont

Inherits:
TTF show all
Defined in:
lib/prawn/fonts/dfont.rb

Overview

Note:

You shouldn’t use this class directly.

DFONT font. DFONT is a bunch of TrueType fonts in a single file.

Constant Summary

Constants inherited from Prawn::Font

Prawn::Font::AFM, Prawn::Font::DFont, Prawn::Font::TTC, Prawn::Font::TTF

Instance Attribute Summary

Attributes inherited from TTF

#subsets, #ttf

Attributes inherited from Prawn::Font

#family, #name, #options

Class Method Summary collapse

Methods inherited from TTF

#basename, #bbox, #cap_height, #character_count, #compute_width_of, #encode_text, #family_class, #glyph_present?, #has_kerning_data?, #initialize, #italic_angle, #normalize_encoding, #pdf_flags, #script?, #serif?, #stem_v, #to_utf8, #unicode?, #x_height

Methods inherited from Prawn::Font

#add_to_current_page, #ascender, #descender, #eql?, font_format, #hash, #height, #height_at, #identifier_for, #initialize, #inspect, #line_gap, load, #normalize_encoding, #normalize_encoding!

Constructor Details

This class inherits a constructor from Prawn::Fonts::TTF

Class Method Details

.font_count(file) ⇒ Integer

Returns the number of fonts contained in the dfont file.

Parameters:

  • file (String)

Returns:

  • (Integer) 


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# File 'lib/prawn/fonts/dfont.rb', line 29

def self.font_count(file)
  TTFunk::ResourceFile.open(file) do |f|
    return f.map['sfnt'][:list].length
  end
end

.named_fonts(file) ⇒ Array<String>

Returns a list of the names of all named fonts in the given dfont file. Note that fonts are not required to be named in a dfont file, so the list may be empty even if the file does contain fonts. Also, note that the list is returned in no particular order, so the first font in the list is not necessarily the font at index 0 in the file.

Parameters:

  • file (String)

Returns:

  • (Array<String>) 


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# File 'lib/prawn/fonts/dfont.rb', line 19

def self.named_fonts(file)
  TTFunk::ResourceFile.open(file) do |f|
    return f.resources_for('sfnt')
  end
end