Class: Musa::Datasets::Score

Inherits:
Object
  • Object
show all
Includes:
Enumerable, AbsD, Queriable, Render, ToMXML
Defined in:
lib/musa-dsl/datasets/score.rb,
lib/musa-dsl/datasets/score/render.rb,
lib/musa-dsl/datasets/score/queriable.rb,
lib/musa-dsl/datasets/score/to-mxml/to-mxml.rb

Defined Under Namespace

Modules: Queriable, Render, ToMXML

Constant Summary collapse

NaturalKeys = 
NaturalKeys.freeze

Instance Method Summary collapse

Methods included from Render

#render

Methods included from ToMXML

#to_mxml

Methods included from AbsD

#forward_duration, is_compatible?, #note_duration, to_AbsD

Methods included from E

#valid?, #validate!

Constructor Details

#initialize(hash = nil) ⇒ Score

Returns a new instance of Score.

Raises:

  • (ArgumentError) 


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# File 'lib/musa-dsl/datasets/score.rb', line 22

def initialize(hash = nil)
  raise ArgumentError, "'hash' parameter should be a Hash with time and events information" unless hash.nil? || hash.is_a?(Hash)

  @score = {}
  @indexer = []

  if hash
    hash.sort.each do |k, v|
      raise ArgumentError, "'hash' values for time #{k} should be an Array of events" unless v.is_a?(Array)

      v.each do |vv|
        at(k, add: vv)
      end
    end
  end
end

Instance Method Details

#[](key) ⇒ Object 



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# File 'lib/musa-dsl/datasets/score.rb', line 44

def [](key)
  if NaturalKeys.include?(key) && self.respond_to?(key)
    self.send(key)
  end
end

#at(time, add: nil) ⇒ Object 



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# File 'lib/musa-dsl/datasets/score.rb', line 58

def at(time, add: nil)
  time = time.rationalize

  if add
    raise ArgumentError, "#{add} is not a Abs dataset" unless add&.is_a?(Musa::Datasets::Abs)

    slot = @score[time] ||= [].extend(QueryableByTimeSlot)

    slot << add

    @indexer << { start: time,
                  finish: time + add.duration.rationalize,
                  dataset: add }

    nil
  else
    @score[time] ||= [].extend(QueryableByTimeSlot)
  end
end

#between(closed_interval_start, open_interval_finish) ⇒ Object 



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# File 'lib/musa-dsl/datasets/score.rb', line 94

def between(closed_interval_start, open_interval_finish)
  @indexer
    .select { |i| i[:start] < open_interval_finish && i[:finish] > closed_interval_start ||
                  closed_interval_start == open_interval_finish &&
                      i[:start] == i[:finish] &&
                      i[:start] == closed_interval_start }
    .sort_by { |i| i[:start] }
    .collect { |i| { start: i[:start],
                     finish: i[:finish],
                     start_in_interval: i[:start] > closed_interval_start ? i[:start] : closed_interval_start,
                     finish_in_interval: i[:finish] < open_interval_finish ? i[:finish] : open_interval_finish,
                     dataset: i[:dataset] } }.extend(QueryableByDataset)
end

#changes_between(closed_interval_start, open_interval_finish) ⇒ Object

TODO hay que implementar un effective_start y effective_finish con el inicio/fin dentro del bar, no absoluto



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# File 'lib/musa-dsl/datasets/score.rb', line 110

def changes_between(closed_interval_start, open_interval_finish)
  (
    #
    # we have a start event if the element
    # begins between queried interval start (included) and interval finish (excluded)
    #
    @indexer
      .select { |i| i[:start] >= closed_interval_start && i[:start] < open_interval_finish }
      .collect { |i| i.clone.merge({ change: :start, time: i[:start] }) } +

    #
    # we have a finish event if the element interval finishes
    # between queried interval start (excluded) and queried interval finish (included) or
    # element interval finishes exactly on queried interval start
    # but the element interval started before queried interval start
    # (the element is not an instant)
    #
    @indexer
      .select { |i| ( i[:finish] > closed_interval_start ||
                      i[:finish] == closed_interval_start && i[:finish] == i[:start])   &&
                    ( i[:finish] < open_interval_finish ||
                      i[:finish] == open_interval_finish && i[:start] < open_interval_finish) }
      .collect { |i| i.clone.merge({ change: :finish, time: i[:finish] }) } +

    #
    # when the queried interval has no duration (it's an instant) we have a start and a finish event
    # if the element also is an instant exactly coincident with the queried interval
    #
    @indexer
      .select { |i| ( closed_interval_start == open_interval_finish &&
                      i[:start] == closed_interval_start &&
                      i[:finish] == open_interval_finish) }
      .collect { |i| [i.clone.merge({ change: :start, time: i[:start] }),
                      i.clone.merge({ change: :finish, time: i[:finish] })] }
      .flatten(1)
  )
    .sort_by { |i| [ i[:time],
                     i[:start] < i[:finish] && i[:change] == :finish ? 0 : 1] }
    .collect { |i| { change: i[:change],
                     time: i[:time],
                     start: i[:start],
                     finish: i[:finish],
                     start_in_interval: i[:start] > closed_interval_start ? i[:start] : closed_interval_start,
                     finish_in_interval: i[:finish] < open_interval_finish ? i[:finish] : open_interval_finish,
                     time_in_interval: if i[:time] < closed_interval_start
                                         closed_interval_start
                                       elsif i[:time] > open_interval_finish
                                         open_interval_finish
                                       else
                                         i[:time]
                                       end,
                     dataset: i[:dataset] } }.extend(QueryableByDataset)
end

#duration ⇒ Object 



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# File 'lib/musa-dsl/datasets/score.rb', line 54

def duration
  (finish || 1r) - 1r
end

#each(&block) ⇒ Object 



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# File 'lib/musa-dsl/datasets/score.rb', line 86

def each(&block)
  @score.sort.each(&block)
end

#finish ⇒ Object 



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# File 'lib/musa-dsl/datasets/score.rb', line 50

def finish
  @indexer.collect { |i| i[:finish] }.max
end

#inspect ⇒ Object 



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# File 'lib/musa-dsl/datasets/score.rb', line 186

def inspect
  s = StringIO.new

  first_level1 = true

  s.write "Musa::Datasets::Score.new({\n"

  @score.each do |k, v|
    s.write "#{ ", \n" unless first_level1 }  #{ k.inspect } => [\n"
    first_level1 = false
    first_level2 = true

    v.each do |vv|
      s.write "#{ ", \n" unless first_level2 }\t#{ vv }"
      first_level2 = false
    end

    s.write  " ]"
  end
  s.write "\n})"

  s.string
end

#positions ⇒ Object 



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# File 'lib/musa-dsl/datasets/score.rb', line 82

def positions
  @score.keys.sort
end

#reset ⇒ Object 



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# File 'lib/musa-dsl/datasets/score.rb', line 39

def reset
  @score.clear
  @indexer.clear
end

#size ⇒ Object 



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# File 'lib/musa-dsl/datasets/score.rb', line 78

def size
  @score.keys.size
end

#subset ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/musa-dsl/datasets/score.rb', line 172

def subset
  raise ArgumentError, "subset needs a block with the inclusion condition on the dataset" unless block_given?

  filtered_score = Score.new

  @score.each_pair do |time, datasets|
    datasets.each do |dataset|
      filtered_score.at time, add: dataset if yield(dataset)
    end
  end

  filtered_score
end

#to_h ⇒ Object 



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# File 'lib/musa-dsl/datasets/score.rb', line 90

def to_h
  @score.sort.to_h
end

#values_of(attribute) ⇒ Object 



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# File 'lib/musa-dsl/datasets/score.rb', line 164

def values_of(attribute)
  values = Set[]
  @score.each_value do |slot|
    slot.each { |dataset| values << dataset[attribute] }
  end
  values
end