Class: Pdfrb::Font::TrueType::Post

Inherits:
Object
  • Object
show all
Defined in:
lib/pdfrb/font/true_type/post.rb

Constant Summary collapse

STANDARD_GLYPH_NAMES = 
%w[
  .notdef .null nonmarkingreturn space exclam quotedbl numbersign
  dollar percent ampersand quotesingle parenleft parenright asterisk
  plus comma hyphen period slash zero one two three four five six
  seven eight nine colon semicolon less equal greater question at
  A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
  bracketleft backslash bracketright asciicircum underscore grave
  a b c d e f g h i j k l m n o p q r s t u v w x y z
  braceleft bar braceright asciitilde Adieresis Aring Ccedilla Eacute
  Ntilde Odieresis Udieresis aacute agrave acircumflex adieresis atilde
  aring ccedilla eacute egrave ecircumflex edieresis iacute igrave
  icircumflex idieresis ntilde oacute ograve ocircumflex odieresis
  otilde uacute ugrave ucircumflex udieresis dagger degree cent
  sterling section bullet paragraph germandbls registered copyright
  trademark acute dieresis notequal AE Oslash infinity plusminus
  lessequal greaterequal yen mu partialdiff summation product pi
  integral ordfeminine ordmasculine Omega ae oslash questiondown
  exclamdown logicalnot radical florin approxequal Delta guillemotleft
  guillemotright ellipsis nonbreakingspace Agrave Atilde Otilde OE oe
  endash emdash quotedblleft quotedblright quoteleft quoteright divide
  lozenge ydieresis Ydieresis fraction currency guilsinglleft
  guilsinglright fi fl daggerdbl periodcentered quotesinglbase
  quotedblbase perthousand Acircumflex Ecircumflex Aacute Edieresis
  Egrave Iacute Icircumflex Idieresis Eth eth Yacute yacute Thorne thorn
  multiply minus onesuperior twosuperior threesuperior onehalf
  onequarter threequarters franc Gbreve gbreve Idotaccent Scedilla
  scedilla Cacute cacute Ccaron ccaron dcroat
].freeze

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(data) ⇒ Post

Returns a new instance of Post.



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# File 'lib/pdfrb/font/true_type/post.rb', line 10

def initialize(data)
  return unless data && data.bytesize >= 32

  @version = data.bytes[0, 4].pack("C*").unpack1("N")
  @italic_angle = s32(data, 4) / 65536.0
  @underline_position = s16(data, 8)
  @underline_thickness = s16(data, 10)
  @is_fixed_pitch = data.bytes[12, 4].pack("C*").unpack1("N")
  @glyph_names = parse_names(data) if @version == 0x00020000
end

Instance Attribute Details

#glyph_names ⇒ Object (readonly)

Returns the value of attribute glyph_names.



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# File 'lib/pdfrb/font/true_type/post.rb', line 7

def glyph_names
  @glyph_names
end

#is_fixed_pitch ⇒ Object (readonly)

Returns the value of attribute is_fixed_pitch.



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# File 'lib/pdfrb/font/true_type/post.rb', line 7

def is_fixed_pitch
  @is_fixed_pitch
end

#italic_angle ⇒ Object (readonly)

Returns the value of attribute italic_angle.



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# File 'lib/pdfrb/font/true_type/post.rb', line 7

def italic_angle
  @italic_angle
end

#underline_position ⇒ Object (readonly)

Returns the value of attribute underline_position.



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# File 'lib/pdfrb/font/true_type/post.rb', line 7

def underline_position
  @underline_position
end

#underline_thickness ⇒ Object (readonly)

Returns the value of attribute underline_thickness.



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# File 'lib/pdfrb/font/true_type/post.rb', line 7

def underline_thickness
  @underline_thickness
end

#version ⇒ Object (readonly)

Returns the value of attribute version.



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# File 'lib/pdfrb/font/true_type/post.rb', line 7

def version
  @version
end

Instance Method Details

#glyph_name(index) ⇒ Object 



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# File 'lib/pdfrb/font/true_type/post.rb', line 21

def glyph_name(index)
  return nil unless @glyph_names
  return nil if index >= @glyph_names.length

  @glyph_names[index]
end

#s32(data, off) ⇒ Object 



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# File 'lib/pdfrb/font/true_type/post.rb', line 28

def s32(data, off); (data.getbyte(off) << 24) | (data.getbyte(off + 1) << 16) | (data.getbyte(off + 2) << 8) | data.getbyte(off + 3); end