Class: RailroadDiagrams::Style

Inherits:
Object
  • Object
show all
Defined in:
lib/railroad_diagrams/style.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(css) ⇒ Style

Returns a new instance of Style.



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# File 'lib/railroad_diagrams/style.rb', line 5

def initialize(css)
  @css = css
end

Class Method Details

.default_style ⇒ Object 



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# File 'lib/railroad_diagrams/style.rb', line 10

def default_style
  <<~CSS
    * {
      color: #333333;
    }
    svg.railroad-diagram {
      background-color: white;
    }
    svg.railroad-diagram path {
      stroke-width:3;
      stroke:black;
      fill:rgba(0,0,0,0);
    }
    svg.railroad-diagram text {
      font:bold 14px monospace;
      text-anchor:middle;
    }
    svg.railroad-diagram text.label {
      text-anchor:start;
    }
    svg.railroad-diagram text.comment {
      font:italic 12px monospace;
    }
    svg.railroad-diagram rect {
      stroke-width:3;
      stroke: #333333;
      fill:hsl(120,100%,90%);
    }
    svg.railroad-diagram path {
      stroke: #333333;
    }
    svg.railroad-diagram .terminal rect {
      fill: hsl(190, 100%, 83%);
    }
    svg.railroad-diagram .non-terminal rect {
      fill: hsl(223, 100%, 83%);
    }
    svg.railroad-diagram rect.group-box {
      stroke: gray;
      stroke-dasharray: 10 5;
      fill: none;
    }
  CSS
end

Instance Method Details

#add(parent) ⇒ Object 



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# File 'lib/railroad_diagrams/style.rb', line 60

def add(parent)
  parent.children.push(self)
  self
end

#format ⇒ Object 



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# File 'lib/railroad_diagrams/style.rb', line 65

def format
  self
end

#text_diagram ⇒ Object 



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# File 'lib/railroad_diagrams/style.rb', line 69

def text_diagram
  TextDiagram.new
end

#to_s ⇒ Object 



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# File 'lib/railroad_diagrams/style.rb', line 56

def to_s
  "Style(#{@css})"
end

#write_svg(write) ⇒ Object 



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# File 'lib/railroad_diagrams/style.rb', line 73

def write_svg(write)
  # Write included stylesheet as CDATA. See https://developer.mozilla.org/en-US/docs/Web/SVG/Element/style
  cdata = "/* <![CDATA[ */\n#{@css}\n/* ]]> */\n"
  write.call("<style>#{cdata}</style>")
end