Class: Hobostove::Line

Inherits:
Object
  • Object
show all
Defined in:
lib/hobostove/line.rb

Defined Under Namespace

Classes: LineSegment

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(segments = []) ⇒ Line

Returns a new instance of Line.



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# File 'lib/hobostove/line.rb', line 7

def initialize(segments = [])
  @segments = segments
end

Instance Attribute Details

#segments ⇒ Object (readonly)

Returns the value of attribute segments.



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# File 'lib/hobostove/line.rb', line 5

def segments
  @segments
end

Instance Method Details

#<=>(other) ⇒ Object 



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# File 'lib/hobostove/line.rb', line 43

def <=>(other)
  to_s <=> other.to_s
end

#add(color, body) ⇒ Object 



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# File 'lib/hobostove/line.rb', line 39

def add(color, body)
  segments << LineSegment.new(color, body)
end

#first(count) ⇒ Object 



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# File 'lib/hobostove/line.rb', line 23

def first(count)
  segment(count).first
end

#length ⇒ Object 



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# File 'lib/hobostove/line.rb', line 15

def length
  to_s.length
end

#present? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/hobostove/line.rb', line 19

def present?
  to_s.present?
end

#segment(count) ⇒ Object 



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# File 'lib/hobostove/line.rb', line 47

def segment(count)
  first_line = Line.new
  second_line = Line.new

  segments.inject(0) do |current_count, segment|
    if current_count > count
      second_line.add(segment.color, segment.body)
      next
    end

    current_count += segment.body.length

    if current_count <= count
      first_line.add(segment.color, segment.body)
    else
      count = segment.body.length - (current_count - count)

      first_line.add(segment.color, segment.body.first(count))
      second_line.add(segment.color, segment.body[count..-1])
    end

    current_count
  end

  [first_line, second_line]
end

#split(width) ⇒ Object 



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# File 'lib/hobostove/line.rb', line 27

def split(width)
  lines = []
  line = self
  begin
    first, second = line.send(:segment, width)

    lines << first
    line = second
  end while second.length > 0
  lines
end

#to_s ⇒ Object 



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# File 'lib/hobostove/line.rb', line 11

def to_s
  @segments.map(&:body).join
end