Class: EagleCAD::Drawing

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

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Drawing 



66
67
68
69
70
71
72
73
 
# File 'lib/eaglecad/drawing.rb', line 66

def initialize()
    @layers = []
    self.vertical_text = :up

    self.display = false
    self.multiple = 1
    self.style = :lines
end

Instance Attribute Details

#altdistance ⇒ Object

Grid attributes



13
14
15
 
# File 'lib/eaglecad/drawing.rb', line 13

def altdistance
  @altdistance
end

#altunit ⇒ Object

Grid attributes



13
14
15
 
# File 'lib/eaglecad/drawing.rb', line 13

def altunit
  @altunit
end

#altunitdist ⇒ Object

Grid attributes



13
14
15
 
# File 'lib/eaglecad/drawing.rb', line 13

def altunitdist
  @altunitdist
end

#always_vector_font ⇒ Object

Settings attributes



16
17
18
 
# File 'lib/eaglecad/drawing.rb', line 16

def always_vector_font
  @always_vector_font
end

#board ⇒ Object

Returns the value of attribute board.



9
10
11
 
# File 'lib/eaglecad/drawing.rb', line 9

def board
  @board
end

#display ⇒ Object

Grid attributes



13
14
15
 
# File 'lib/eaglecad/drawing.rb', line 13

def display
  @display
end

#distance ⇒ Object

Grid attributes



13
14
15
 
# File 'lib/eaglecad/drawing.rb', line 13

def distance
  @distance
end

#layers ⇒ Object (readonly)

Returns the value of attribute layers.



10
11
12
 
# File 'lib/eaglecad/drawing.rb', line 10

def layers
  @layers
end

#multiple ⇒ Object

Grid attributes



13
14
15
 
# File 'lib/eaglecad/drawing.rb', line 13

def multiple
  @multiple
end

#schematic ⇒ Object

Returns the value of attribute schematic.



9
10
11
 
# File 'lib/eaglecad/drawing.rb', line 9

def schematic
  @schematic
end

#style ⇒ Object

Grid attributes



13
14
15
 
# File 'lib/eaglecad/drawing.rb', line 13

def style
  @style
end

#unit ⇒ Object

Grid attributes



13
14
15
 
# File 'lib/eaglecad/drawing.rb', line 13

def unit
  @unit
end

#unitdistance ⇒ Object

Grid attributes



13
14
15
 
# File 'lib/eaglecad/drawing.rb', line 13

def unitdistance
  @unitdistance
end

#vertical_text ⇒ Object

Settings attributes



16
17
18
 
# File 'lib/eaglecad/drawing.rb', line 16

def vertical_text
  @vertical_text
end

Class Method Details

.from_xml(element) ⇒ Object 



19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
 
# File 'lib/eaglecad/drawing.rb', line 19

def self.from_xml(element)
    self.new.tap do |drawing|
  element.elements.each do |element|
      case element.name
    when 'board'
        raise StandardError, "Drawing files must contain only one Board element" if drawing.board
        drawing.board = Board.from_xml(element)

    when 'grid'
        element.attributes.each do |name, value|
      case name
          when 'altdistance'  then drawing.altdistance = value.to_f
          when 'altunit' then drawing.altunit = value.to_sym
          when 'altunitdist'  then drawing.altunitdist = value.to_sym
          when 'display' then drawing.display = ('no' != value)
          when 'distance'  then drawing.distance = value.to_f
          when 'unit'    then drawing.unit = value.to_sym
          when 'unitdist'  then drawing.unitdistance = value.to_sym
          when 'multiple'  then drawing.multiple = value.to_i
          when 'style' then drawing.style = value.to_sym
      end
        end

    when 'layers'
        element.elements.each {|element| drawing.layers.push Layer.from_xml(element) }

    when 'schematic'
        raise StandardError, "Drawing files must contain only one Schematic element" if drawing.schematic
        drawing.schematic = Schematic.from_xml(element)

    when 'settings'
        element.elements.each do |element|
      element.attributes.each do |name, value|
          case name
        when 'alwaysvectorfont' then drawing.always_vector_font = ('no' != value)
        when 'verticaltext'     then drawing.vertical_text = value.to_sym
          end
      end
        end

    else
        raise StandardError, "Unrecognized Drawing element '#{element.name}'"
      end
  end
    end
end

Instance Method Details

#to_xml ⇒ REXML::element

Generate XML for the EagleCAD::Drawing element



77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
 
# File 'lib/eaglecad/drawing.rb', line 77

def to_xml
    drawing_element = REXML::Element.new 'drawing'

    settings = REXML::Element.new 'settings', drawing_element
    settings.add_element 'setting', {'alwaysvectorfont' => (always_vector_font ? 'yes' : 'no')}
    settings.add_element 'setting', {'verticaltext' => vertical_text}

    grid_element = REXML::Element.new 'grid', drawing_element
    grid_element.add_attributes({   'altdistance'   => altdistance,
            'altunit'     => altunit,
            'altunitdist'   => altunitdist,
            'display'     => (display ? 'yes' : 'no'),
            'distance'      => distance,
            'multiple'      => multiple,
            'unit'      => unit,
            'unitdist'      => unitdistance,
            'style'     => style,
         })

    layers_element = REXML::Element.new 'layers', drawing_element
    layers.each {|layer| layers_element.add_element layer.to_xml }

    drawing_element.add_element(board.to_xml) if board
    drawing_element.add_element(schematic.to_xml) if schematic

    drawing_element
end

#write(output) ⇒ Object 



106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
 
# File 'lib/eaglecad/drawing.rb', line 106

def write(output)
    document = REXML::Document.new('<?xml version="1.0" encoding="utf-8"?><!DOCTYPE eagle SYSTEM "eagle.dtd">')

    eagle = REXML::Element.new('eagle')
    eagle.add_attribute('version', '6.0')
    eagle.add_element to_xml
    document.add eagle

    output = File.open(output, 'w') if output.is_a? String

    # This is a hack to force REXML to output PCDATA text inline with the enclosing element. Eagle has problems with the extra newlines that REXML tends to add.
    formatter = REXML::Formatters::Pretty.new(0)
    formatter.compact = true
    formatter.write(document, output)

    output.close
end