Class: Taopaipai::Pin

Inherits:
Object
  • Object
show all
Defined in:
lib/taopaipai/pin.rb

Instance Method Summary collapse

Constructor Details

#initialize(io, options = {}) ⇒ Pin

Returns a new instance of Pin.



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# File 'lib/taopaipai/pin.rb', line 4

def initialize(io, options={})
  @io = io
  @state = PinState.new(options)
end

Instance Method Details

#apply! ⇒ Object 



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# File 'lib/taopaipai/pin.rb', line 9

def apply!
  export.apply_direction.apply_value
end

#direction(direction) ⇒ Object 



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# File 'lib/taopaipai/pin.rb', line 13

def direction(direction)
  @state.changing :direction, direction do
    apply_direction
  end
  self
end

#export ⇒ Object 



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# File 'lib/taopaipai/pin.rb', line 36

def export
  @io.export(@state.number) if @state.export!
  self
end

#unexport ⇒ Object 



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# File 'lib/taopaipai/pin.rb', line 31

def unexport
  @io.unexport(@state.number) if @state.unexport!
  self
end

#value(value = nil) ⇒ Object 



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# File 'lib/taopaipai/pin.rb', line 20

def value(value = nil)
  if @state.out?
    @state.changing :value, value do
      apply_value
    end
    self
  else
    @state.value = @io.read(@state.number)
  end
end