Class: TTFunk::Table::Post

Inherits:
TTFunk::Table show all
Defined in:
lib/ttfunk/table/post.rb,
lib/ttfunk/table/post/format10.rb,
lib/ttfunk/table/post/format20.rb,
lib/ttfunk/table/post/format30.rb,
lib/ttfunk/table/post/format40.rb

Defined Under Namespace

Modules: Format10, Format20, Format30, Format40

Instance Attribute Summary collapse

Attributes inherited from TTFunk::Table

#file, #length, #offset

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from TTFunk::Table

#exists?, #initialize, #raw, #tag

Constructor Details

This class inherits a constructor from TTFunk::Table

Instance Attribute Details

#fixed_pitch ⇒ Object (readonly)

Returns the value of attribute fixed_pitch.



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# File 'lib/ttfunk/table/post.rb', line 10

def fixed_pitch
  @fixed_pitch
end

#format ⇒ Object (readonly)

Returns the value of attribute format.



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# File 'lib/ttfunk/table/post.rb', line 6

def format
  @format
end

#italic_angle ⇒ Object (readonly)

Returns the value of attribute italic_angle.



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# File 'lib/ttfunk/table/post.rb', line 7

def italic_angle
  @italic_angle
end

#max_mem_type1 ⇒ Object (readonly)

Returns the value of attribute max_mem_type1.



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# File 'lib/ttfunk/table/post.rb', line 14

def max_mem_type1
  @max_mem_type1
end

#max_mem_type42 ⇒ Object (readonly)

Returns the value of attribute max_mem_type42.



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# File 'lib/ttfunk/table/post.rb', line 12

def max_mem_type42
  @max_mem_type42
end

#min_mem_type1 ⇒ Object (readonly)

Returns the value of attribute min_mem_type1.



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# File 'lib/ttfunk/table/post.rb', line 13

def min_mem_type1
  @min_mem_type1
end

#min_mem_type42 ⇒ Object (readonly)

Returns the value of attribute min_mem_type42.



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# File 'lib/ttfunk/table/post.rb', line 11

def min_mem_type42
  @min_mem_type42
end

#subtable ⇒ Object (readonly)

Returns the value of attribute subtable.



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# File 'lib/ttfunk/table/post.rb', line 16

def subtable
  @subtable
end

#underline_position ⇒ Object (readonly)

Returns the value of attribute underline_position.



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# File 'lib/ttfunk/table/post.rb', line 8

def underline_position
  @underline_position
end

#underline_thickness ⇒ Object (readonly)

Returns the value of attribute underline_thickness.



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# File 'lib/ttfunk/table/post.rb', line 9

def underline_thickness
  @underline_thickness
end

Class Method Details

.encode(post, mapping) ⇒ Object 



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# File 'lib/ttfunk/table/post.rb', line 18

def self.encode(post, mapping)
  return nil unless post.exists?
  post.recode(mapping)
end

Instance Method Details

#fixed_pitch? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/ttfunk/table/post.rb', line 23

def fixed_pitch?
  @fixed_pitch != 0
end

#glyph_for(code) ⇒ Object 



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# File 'lib/ttfunk/table/post.rb', line 27

def glyph_for(code)
  ".notdef"
end

#recode(mapping) ⇒ Object 



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# File 'lib/ttfunk/table/post.rb', line 31

def recode(mapping)
  return raw if format == 0x00030000

  table = raw[0,32]
  table[0,4] = [0x00020000].pack("N")

  index = []
  strings = []

  mapping.keys.sort.each do |new_id|
    post_glyph = glyph_for(mapping[new_id])
    position = Format10::POSTSCRIPT_GLYPHS.index(post_glyph)
    if position
      index << position
    else
      index << 257 + strings.length
      strings << post_glyph
    end
  end

  table << [mapping.length, *index].pack("n*")
  strings.each do |string|
    table << [string.length, string].pack("CA*")
  end

  return table
end