Class: EagleCAD::Symbol

Inherits:
Object
  • Object
show all
Defined in:
lib/eaglecad/symbol.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name) ⇒ Symbol 



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# File 'lib/eaglecad/symbol.rb', line 43

def initialize(name)
    @layers = {}
    @layers.default_proc = proc {|hash, key| hash[key] = []}
    @name = name
    @pins = []
end

Instance Attribute Details

#description ⇒ Object

Returns the value of attribute description.



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# File 'lib/eaglecad/symbol.rb', line 7

def description
  @description
end

#layers ⇒ Object (readonly)

Returns the value of attribute layers.



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# File 'lib/eaglecad/symbol.rb', line 8

def layers
  @layers
end

#name ⇒ Object

Returns the value of attribute name.



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# File 'lib/eaglecad/symbol.rb', line 7

def name
  @name
end

#pins ⇒ Object (readonly)

Returns the value of attribute pins.



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# File 'lib/eaglecad/symbol.rb', line 8

def pins
  @pins
end

Class Method Details

.from_xml(element) ⇒ Object

Create a new EagleCAD::Symbol from an REXML::Element



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# File 'lib/eaglecad/symbol.rb', line 12

def self.from_xml(element)
    symbol = Symbol.new element.attributes['name']

    element.elements.each do |element|
	layer_number = element.attributes['layer'].to_i if element.attributes.has_key?('layer')
	case element.name
	    when 'circle'
		symbol.push layer_number, Geometry::Circle.from_xml(element)
	    when 'description'
		symbol.description = element.text
	    when 'pin'
		symbol.pins.push Geometry::Pin.from_xml(element)
	    when 'polygon'
		symbol.push layer_number, Geometry::Polygon.from_xml(element)
	    when 'rectangle'
		symbol.push layer_number, Geometry::Rectangle.from_xml(element)
	    when 'smd'
		symbol.push layer_number, Geometry::SMD.from_xml(element)
	    when 'text'
		symbol.push layer_number, Geometry::Text.from_xml(element)
	    when 'wire'
		symbol.push layer_number, Geometry::Line.from_xml(element)
	    else
		raise StandardError, "Unrecognized symbol element '#{element.name}'"
	end
    end

    symbol
end

Instance Method Details

#push(layer_number, element) ⇒ Object

Push a new element to the given layer number



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# File 'lib/eaglecad/symbol.rb', line 53

def push(layer_number, element)
    layer = @layers[layer_number]
    layer.push element
end

#to_xml ⇒ REXML::Element

Generate XML for the EagleCAD::Symbol element



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# File 'lib/eaglecad/symbol.rb', line 60

def to_xml
    REXML::Element.new('symbol').tap do |element|
	element.add_attribute 'name', name
	element.add_element('description').text = description if description

	pins.each {|pin| element.add_element pin.to_xml }

	layers.each do |number, layer|
	    layer.each {|obj| element.add_element(obj.to_xml, {'layer' => number}) }
	end
    end
end