Contents

class HeadMusic::Placement
  include Comparable

  attr_reader :voice, :position, :rhythmic_value, :pitch
  delegate :composition, to: :voice
  delegate :spelling, to: :pitch, allow_nil: true

  def initialize(voice, position, rhythmic_value, pitch = nil)
    ensure_attributes(voice, position, rhythmic_value, pitch)
  end

  def note?
    pitch
  end

  def rest?
    !note?
  end

  def next_position
    position + rhythmic_value
  end

  def <=>(other)
    self.position <=> other.position
  end

  private

  def ensure_attributes(voice, position, rhythmic_value, pitch)
    @voice = voice
    ensure_position(position)
    @rhythmic_value = rhythmic_value
    @pitch = HeadMusic::Pitch.get(pitch)
  end

  def ensure_position(position)
    if position.is_a?(HeadMusic::Position)
      @position = position
    else
      @position = HeadMusic::Position.new(composition, position)
    end
  end
end

Version data entries

10 entries across 10 versions & 1 rubygems

Version	Path
head_music-0.11.9	lib/head_music/placement.rb
head_music-0.11.8	lib/head_music/placement.rb
head_music-0.11.7	lib/head_music/placement.rb
head_music-0.11.6	lib/head_music/placement.rb
head_music-0.11.5	lib/head_music/placement.rb
head_music-0.11.4	lib/head_music/placement.rb
head_music-0.11.3	lib/head_music/placement.rb
head_music-0.11.2	lib/head_music/placement.rb
head_music-0.11.1	lib/head_music/placement.rb
head_music-0.10.0	lib/head_music/placement.rb