Class: Asciidoctor::Diagram::GnuplotConverter

Inherits:
Object
  • Object
show all
Includes:
CliGenerator, DiagramConverter
Defined in:
lib/asciidoctor-diagram/gnuplot/converter.rb

Instance Method Summary collapse

Methods included from CliGenerator

#generate_file, #generate_file_stdout, #generate_stdin, #generate_stdin_file, #generate_stdin_stdout

Methods included from DiagramConverter

#native_scaling?, #wrap_source

Instance Method Details

#collect_options(source) ⇒ Object 



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# File 'lib/asciidoctor-diagram/gnuplot/converter.rb', line 17

def collect_options(source)
  {
      :width => source.attr('width'),
      :height => source.attr('height'),
      :transparent => source.attr('transparent'),
      :crop => source.attr('crop'),
      :font => source.attr('font'),
      :fontscale => source.attr('fontscale'),
      :background => source.attr('background'),
  }
end

#convert(source, format, options) ⇒ Object 



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# File 'lib/asciidoctor-diagram/gnuplot/converter.rb', line 29

def convert(source, format, options)
  if format == :txt || format == :literal
    terminal = 'dumb'
  else
    terminal = format.to_s
  end
  code = "set term #{terminal}"

  width = options[:width]
  height = options[:height]
  code << " size #{width},#{height}" unless width.nil? or height.nil?

  transparent = options[:transparent]
  code << (transparent ? " transparent" : " notransparent") unless transparent.nil?

  crop = options[:crop]
  code << (crop ? " crop" : " nocrop") unless crop.nil?

  font = options[:font]
  code << %( font "#{font}") unless font.nil?

  font_scale = options[:fontscale]
  code << " fontscale #{font_scale}" unless font_scale.nil?

  background = options[:background]
  code << %( background "#{background}") unless background.nil?

  code << "\n"
  code << source.to_s

  generate_stdin_stdout(source.find_command('gnuplot'), code) do |tool|
    {
      :args => [tool],
      :chdir => source.base_dir
    }
  end
end

#supported_formats ⇒ Object 



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# File 'lib/asciidoctor-diagram/gnuplot/converter.rb', line 13

def supported_formats
  [:png, :svg, :gif, :txt, :literal]
end