Class: MusicalScore::Part::Measure

Inherits:
ElementBase show all
Includes:
Contracts
Defined in:
lib/musical_score/part/measure.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(notes, number, attribute = nil) ⇒ Measure

Returns a new instance of Measure.



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# File 'lib/musical_score/part/measure.rb', line 12

def initialize(notes, number, attribute = nil)
    @notes     = notes
    @number    = number
    @attribute = attribute
end

Instance Attribute Details

#attribute ⇒ Object (readonly)

Returns the value of attribute attribute.



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# File 'lib/musical_score/part/measure.rb', line 9

def attribute
  @attribute
end

#length ⇒ Object

Returns the value of attribute length.



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# File 'lib/musical_score/part/measure.rb', line 10

def length
  @length
end

#notes ⇒ Object (readonly)

Returns the value of attribute notes.



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# File 'lib/musical_score/part/measure.rb', line 9

def notes
  @notes
end

#number ⇒ Object (readonly)

Returns the value of attribute number.



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# File 'lib/musical_score/part/measure.rb', line 9

def number
  @number
end

Class Method Details

.create_by_hash(doc) ⇒ Object 



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# File 'lib/musical_score/part/measure.rb', line 33

def self.create_by_hash(doc)
    number = doc["number"].to_i
    attributes = doc.has_key?("attributes") ? MusicalScore::Attribute::Attribute.create_by_hash(doc["attributes"][0]) : nil
    note_array = Array.new
    doc["note"].each do |element|
        note = MusicalScore::Note::Note.create_by_hash(element)
        note_array.push(note)
    end
    notes = MusicalScore::Notes.new(note_array)
    return MusicalScore::Part::Measure.new(notes, number, attributes)
end

.create_by_xml(xml_doc) ⇒ Object 



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# File 'lib/musical_score/part/measure.rb', line 19

def self.create_by_xml(xml_doc)
    attribute_doc = xml_doc.elements["//attributes"]
    attributes    = attribute_doc ? MusicalScore::Attribute::Attribute.create_by_xml(attribute_doc) : nil
    number        = xml_doc.attributes["number"].to_i
    note_array = Array.new
    xml_doc.elements.each("//note") do |element|
        note = MusicalScore::Note::Note.create_by_xml(element)
        note_array.push(note)
    end
    notes = MusicalScore::Notes.new(note_array)
    return MusicalScore::Part::Measure.new(notes, number, attributes)
end

Instance Method Details

#export_xml ⇒ Object 



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# File 'lib/musical_score/part/measure.rb', line 45

def export_xml
    measure_element = REXML::Element.new('measure')
    measure_element.add_attribute('number',@number.to_s)
    measure_element.add_element(@attribute.export_xml) if @attribute

    @notes.each do |note|
        measure_element.add_element(note.export_xml)
    end

    return measure_element
end

#location ⇒ Object 



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# File 'lib/musical_score/part/measure.rb', line 57

def location
    return @notes[0].location
end