Class: Markdoc::Sequence::Message

Inherits:
Object
  • Object
show all
Defined in:
lib/markdoc/sequence.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(args) ⇒ Message

Returns a new instance of Message.



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# File 'lib/markdoc/sequence.rb', line 120

def initialize(args)
  self.options = []
  self.label = args[:label].strip
  self.comment = args[:comment].strip

  self.op = args[:op]
  self.row = args[:row]
  # ui
  self.offset  = args[:ui][:offset]
  self.color   = args[:ui][:color]
  self.font    = args[:ui][:font]
  self.size    = args[:ui][:size]
  self.spacing = args[:ui][:spacing]
  self.line    = args[:ui][:line]
  self.dash    = args[:ui][:dash]

  if op.index('~')
    options << %Q[stroke-dasharray="#{dash}"]
  elsif op.index('-').nil?
    raise "Message direction must be one of ->, ~>, <-, <~"
  end

  if op.index('>')
    self.source, self.dest = args[:role1], args[:role2]
  elsif op.index('<')
    self.source, self.dest = args[:role2], args[:role1]
  else
    raise "Message direction must be one of ->, ~>, <-, <~"
  end

  source.messages << self
  dest.messages << self unless source.eql?(dest)
end

Instance Attribute Details

#color ⇒ Object

Returns the value of attribute color.



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# File 'lib/markdoc/sequence.rb', line 116

def color
  @color
end

#comment ⇒ Object

Returns the value of attribute comment.



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# File 'lib/markdoc/sequence.rb', line 116

def comment
  @comment
end

#dash ⇒ Object

Returns the value of attribute dash.



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# File 'lib/markdoc/sequence.rb', line 116

def dash
  @dash
end

#dest ⇒ Object

Returns the value of attribute dest.



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# File 'lib/markdoc/sequence.rb', line 116

def dest
  @dest
end

#font ⇒ Object

Returns the value of attribute font.



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# File 'lib/markdoc/sequence.rb', line 116

def font
  @font
end

#label ⇒ Object

Returns the value of attribute label.



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# File 'lib/markdoc/sequence.rb', line 116

def label
  @label
end

#line ⇒ Object

Returns the value of attribute line.



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# File 'lib/markdoc/sequence.rb', line 116

def line
  @line
end

#offset ⇒ Object

Returns the value of attribute offset.



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# File 'lib/markdoc/sequence.rb', line 116

def offset
  @offset
end

#op ⇒ Object

Returns the value of attribute op.



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# File 'lib/markdoc/sequence.rb', line 116

def op
  @op
end

#options ⇒ Object

Returns the value of attribute options.



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# File 'lib/markdoc/sequence.rb', line 116

def options
  @options
end

#row ⇒ Object

Returns the value of attribute row.



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# File 'lib/markdoc/sequence.rb', line 116

def row
  @row
end

#size ⇒ Object

Returns the value of attribute size.



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# File 'lib/markdoc/sequence.rb', line 116

def size
  @size
end

#source ⇒ Object

Returns the value of attribute source.



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# File 'lib/markdoc/sequence.rb', line 116

def source
  @source
end

#spacing ⇒ Object

Returns the value of attribute spacing.



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# File 'lib/markdoc/sequence.rb', line 116

def spacing
  @spacing
end

Instance Method Details



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# File 'lib/markdoc/sequence.rb', line 154

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

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

    elements << %Q(<polyline points="#{x1},#{y1} #{x2},#{y1} #{x2},#{y2} #{x1+5},#{y2}" fill="none" stroke-width="2" stroke-linejoin="round" stroke="#{color}" #{options.join ' '}/>)
    elements << %Q(<polygon points="#{x1+10},#{y2-5} #{x1},#{y2} #{x1+10},#{y2+5}" fill="#{color}"/>)
    elements << %Q(<text x="#{x1+10}" y="#{y1-5}" font-family="#{font}" font-size="#{size}" fill="#{color}">#{label}</text>)
  else
    x1 = role1.center
    x2 = role2.center

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

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

    if comment.size > 0
      x = role2.prev.center + 15
      elements << %Q(<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 << %Q(<text x="#{x+5}" y="#{y+23}" font-family="#{font}" font-size="#{size}" fill="#{color}">)
      split(comment).each_with_index do |line, i|
        elements << %Q(<tspan x="#{x+5}" y="#{y+23+13*i}">#{line}</tspan>)
      end
      elements << '</text>'
    end
  end

  elements.join("\n")
end

#y ⇒ Object 



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# File 'lib/markdoc/sequence.rb', line 196

def y
  offset + row*spacing
end