Class: Chords::TextFormatter

Inherits:
Object
  • Object
show all
Defined in:
lib/chords/text_formatter.rb

Instance Method Summary collapse

Constructor Details

#initialize(fretboard) ⇒ TextFormatter

Returns a new instance of TextFormatter.



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# File 'lib/chords/text_formatter.rb', line 6

def initialize(fretboard)
  @fretboard = fretboard
end

Instance Method Details



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# File 'lib/chords/text_formatter.rb', line 10

def print(title, fingerings, opts={})
  rows = [""] * @fretboard.open_notes.size
  
  fingerings.each do |fingering|
    fingering.each_with_index do |position,i|
      rows[i] += "-#{position ? position.to_s.rjust(2,'-') : '-X'}--"
    end
  end
  
  idx = 0
  output = ''
  
  while rows.first.length > idx
    parts = []
    rows.each_with_index do |row, i| 
      parts << "#{@fretboard.open_notes[i].title.rjust(2, ' ')}: " + row[idx...(idx+75)]
    end
    output += "\n" + (parts.reverse.join("\n")) + "\n\n"
    idx += 75
  end
  
  output += "Total #{fingerings.size} fingerings."
  
  if opts[:inline]
    output
  else
    puts output
  end
end