Class: TTFunk::Table::Glyf::Simple

Inherits:
Object
  • Object
show all
Defined in:
lib/ttfunk/table/glyf/simple.rb

Overview

Simple TrueType glyph

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(id, raw) ⇒ Simple

Returns a new instance of Simple.

Parameters:

  • id (Integer) —

    glyph ID.

  • raw (String) 


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# File 'lib/ttfunk/table/glyf/simple.rb', line 52

def initialize(id, raw)
  @id = id
  @raw = raw
  io = StringIO.new(raw)

  @number_of_contours, @x_min, @y_min, @x_max, @y_max =
    io.read(10).unpack('n*').map { |i|
      BinUtils.twos_comp_to_int(i, bit_width: 16)
    }

  @end_points_of_contours = io.read(number_of_contours * 2).unpack('n*')
  @instruction_length = io.read(2).unpack1('n')
  @instructions = io.read(instruction_length).unpack('C*')
end

Instance Attribute Details

#end_points_of_contours ⇒ Array<Integer> (readonly)

Point indices for the last point of each contour.

Returns:

  • (Array<Integer>) 


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# File 'lib/ttfunk/table/glyf/simple.rb', line 40

def end_points_of_contours
  @end_points_of_contours
end

#id ⇒ Integer (readonly)

Glyph ID.

Returns:

  • (Integer) 


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

def id
  @id
end

#instruction_length ⇒ Integer (readonly)

Total number of bytes for instructions.

Returns:

  • (Integer) 


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# File 'lib/ttfunk/table/glyf/simple.rb', line 44

def instruction_length
  @instruction_length
end

#instructions ⇒ Array<Integer> (readonly)

Instruction byte code.

Returns:

  • (Array<Integer>) 


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# File 'lib/ttfunk/table/glyf/simple.rb', line 48

def instructions
  @instructions
end

#number_of_contours ⇒ Integer (readonly)

Number of contours in this glyph.

Returns:

  • (Integer) 


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# File 'lib/ttfunk/table/glyf/simple.rb', line 20

def number_of_contours
  @number_of_contours
end

#raw ⇒ String (readonly)

Binary serialization of this glyph.

Returns:

  • (String) 


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

def raw
  @raw
end

#x_max ⇒ Integer (readonly)

Maximum x for coordinate.

Returns:

  • (Integer) 


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# File 'lib/ttfunk/table/glyf/simple.rb', line 32

def x_max
  @x_max
end

#x_min ⇒ Integer (readonly)

Minimum x for coordinate.

Returns:

  • (Integer) 


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# File 'lib/ttfunk/table/glyf/simple.rb', line 24

def x_min
  @x_min
end

#y_max ⇒ Integer (readonly)

Maximum y for coordinate.

Returns:

  • (Integer) 


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# File 'lib/ttfunk/table/glyf/simple.rb', line 36

def y_max
  @y_max
end

#y_min ⇒ Integer (readonly)

Minimum y for coordinate.

Returns:

  • (Integer) 


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# File 'lib/ttfunk/table/glyf/simple.rb', line 28

def y_min
  @y_min
end

Instance Method Details

#compound? ⇒ false

Is this glyph compound?

Returns:

  • (false) 


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# File 'lib/ttfunk/table/glyf/simple.rb', line 69

def compound?
  false
end

#end_point_of_last_contour ⇒ Integer

End point index of last contour.

Returns:

  • (Integer) 


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# File 'lib/ttfunk/table/glyf/simple.rb', line 83

def end_point_of_last_contour
  end_points_of_contours.last + 1
end

#recode(_mapping) ⇒ String

Recode glyph.

Parameters:

  • _mapping —

    Unused, here for API compatibility.

Returns:

  • (String) 


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# File 'lib/ttfunk/table/glyf/simple.rb', line 77

def recode(_mapping)
  raw
end