class DoctorNinja::Parsers::Drawing

Public Class Methods

applicable_to?(node) click to toggle source
# File lib/doctor_ninja/parsers/drawing.rb, line 8
def self.applicable_to?(node)
  node.name == "drawing"
end

Public Instance Methods

extent() click to toggle source
# File lib/doctor_ninja/parsers/drawing.rb, line 28
def extent
  @extent ||= {
    x: extent_node.attribute("cx").value.to_i,
    y: extent_node.attribute("cy").value.to_i
  }
end
extent_node() click to toggle source
# File lib/doctor_ninja/parsers/drawing.rb, line 35
def extent_node
  @node.xpath(".//wp:extent")
end
parse() click to toggle source
# File lib/doctor_ninja/parsers/drawing.rb, line 12
def parse
  width = extent[:x]/DoctorNinja::EMU_PER_PIXEL
  height = extent[:y]/DoctorNinja::EMU_PER_PIXEL

  rvg = RVG.new(width,height).viewbox(0,0,width,height) do |canvas|
    context = @context.dup
    context[:canvas] = canvas
    parse_children(context)
  end

  format = "png"
  base64 = Base64.encode64 rvg.draw.to_blob { self.format = format }

  "<img src=\"data:image/#{format};base64,#{base64}\"/>"
end