Class: Asciidoctor::Diagram::OxdrawConverter

Inherits:
Object
  • Object
show all
Includes:
CliGenerator, DiagramConverter
Defined in:
lib/asciidoctor-diagram/oxdraw/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

#wrap_source

Instance Method Details

#collect_options(source) ⇒ Object 



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# File 'lib/asciidoctor-diagram/oxdraw/converter.rb', line 20

def collect_options(source)
  {
    :background => source.attr('background'),
    :scale => source.attr('scale')
  }
end

#convert(source, format, options) ⇒ Object 



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# File 'lib/asciidoctor-diagram/oxdraw/converter.rb', line 27

def convert(source, format, options)
  data = generate_stdin(source.find_command('oxdraw'), format.to_s, source.code) do |tool_path, output_path|
    args = [tool_path]

    options.each_pair do |key, value|
      unless value.nil?
        args << "--#{key.to_s.gsub('_', '-')}"
        args << value
      end
    end

    args << '--input'
    args << '-'
    args << '--output'
    args << Platform.native_path(output_path)
    args << '--output-format'
    args << format.to_s
    args << '--quiet'

    {
      :args => args,
      :chdir => source.base_dir
    }
  end

  # oxdraw doesn't perform scaling for SVG files, so we have to do it ourselves since we claim to support native
  # scaling
  if format == :svg && options[:scale]
    scale = options[:scale].to_f
    data.sub!(/(<svg.*width=")([0-9]+)(".*>)/) { |_| $1 + ($2.to_i * scale).to_i.to_s + $3 }
    data.sub!(/(<svg.*height=")([0-9]+)(".*>)/) { |_| $1 + ($2.to_i * scale).to_i.to_s + $3 }
  end

  data
end

#native_scaling? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/asciidoctor-diagram/oxdraw/converter.rb', line 16

def native_scaling?
  true
end

#supported_formats ⇒ Object 



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# File 'lib/asciidoctor-diagram/oxdraw/converter.rb', line 12

def supported_formats
  [:svg, :png]
end