Method: Markdoc::Sequence::Message#print

Defined in:
lib/markdoc/sequence.rb 


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# File 'lib/markdoc/sequence.rb', line 158

def print
  role1, role2 = *(source < dest ? [source, dest] : [dest, source])
  elements = []

  x1 = role1.center
  if role1.eql?(role2)
    y1 = y
    x2 = x1 + 50
    y2 = y1 + spacing

    elements << %(<polyline points="#{x1},#{y1} #{x2},#{y1} #{x2},#{y2} #{x1 + 5},#{y2}" fill="none" stroke-width="2" stroke-linejoin="round" stroke="#{color}" #{options.join ' '}/>)
    elements << %(<polygon points="#{x1 + 10},#{y2 - 5} #{x1},#{y2} #{x1 + 10},#{y2 + 5}" fill="#{color}"/>)
    elements << %(<text x="#{x1 + 10}" y="#{y1 - 5}" font-family="#{font}" font-size="#{size}" fill="#{color}">#{label}</text>)
  else
    x2 = role2.center

    if role1 == source
      x2 -= 10
      elements << %(<polygon points="#{x2},#{y - 5} #{x2 + 10},#{y} #{x2},#{y + 5}" fill="#{color}"/>)
    else
      x1 += 10
      elements << %(<polygon points="#{x1},#{y - 5} #{x1 - 10},#{y} #{x1},#{y + 5}" fill="#{color}"/>)
    end

    elements << %(<line x1="#{x1}" y1="#{y}" x2="#{x2}" y2="#{y}" stroke="#{color}" stroke-width="2" #{options.join ' '}/>)
    elements << %(<text x="#{x1 + 40}" y="#{y - 5}" font-family="#{font}" font-size="#{size}" fill="#{color}">#{label}</text>)

    if comment.size.positive?
      x = role2.prev.center + 15
      elements << %(<path fill="#eeeeee" d="M#{x2 - 30},#{y + 1} L#{x2 - 30},#{y + 10} H#{x} V#{y + 2 * spacing - 25} H#{x2} V#{y + 10} H#{x2 - 20} z" />)
      elements << %(<text x="#{x + 5}" y="#{y + 23}" font-family="#{font}" font-size="#{size}" fill="#{color}">)
      split(comment).each_with_index do |line, i|
        elements << %(<tspan x="#{x + 5}" y="#{y + 23 + 13 * i}">#{line}</tspan>)
      end
      elements << '</text>'
    end
  end

  elements.join("\n")
end