Class: RubyDocx::Elements::OleObject

Inherits:
Element
  • Object
show all
Defined in:
lib/ruby_docx/elements/ole_object.rb

Instance Attribute Summary collapse

Attributes inherited from Element

#doc, #grid, #node

Instance Method Summary collapse

Methods inherited from Element

#elements, #initialize, #inspect, #to_xml

Constructor Details

This class inherits a constructor from RubyDocx::Elements::Element

Instance Attribute Details

#image_path ⇒ Object

Returns the value of attribute image_path.



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# File 'lib/ruby_docx/elements/ole_object.rb', line 27

def image_path
  @image_path
end

#link ⇒ Object

Returns the value of attribute link.



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# File 'lib/ruby_docx/elements/ole_object.rb', line 26

def link
  @link
end

#path ⇒ Object

Returns the value of attribute path.



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# File 'lib/ruby_docx/elements/ole_object.rb', line 26

def path
  @path
end

#zip ⇒ Object

Returns the value of attribute zip.



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# File 'lib/ruby_docx/elements/ole_object.rb', line 26

def zip
  @zip
end

Instance Method Details

#base64_data ⇒ Object 



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# File 'lib/ruby_docx/elements/ole_object.rb', line 69

def base64_data
  "data:image/png;base64,#{Base64.strict_encode64(self.to_png)}"
end

#data ⇒ Object 



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# File 'lib/ruby_docx/elements/ole_object.rb', line 65

def data
  self.to_png
end

#relation_id ⇒ Object

def style

element = @node.xpath(".//v:shape").first
if element && element.attributes.keys.index("style")
  element.attributes["style"].value
else
  nil
end

end



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# File 'lib/ruby_docx/elements/ole_object.rb', line 38

def relation_id
  element = @node.xpath(".//o:OLEObject").first
  if element && element.attributes.keys.index("id")
    element.attributes["id"].value
  else
    nil
  end
end

#replace(lnk) ⇒ Object 



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# File 'lib/ruby_docx/elements/ole_object.rb', line 97

def replace(lnk)
  @link = lnk
end

#save(path) ⇒ Object 



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# File 'lib/ruby_docx/elements/ole_object.rb', line 91

def save(path)
  file = File.new(path, "wb")
  file.write(self.to_png)
  file.close
end

#size ⇒ Object 



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# File 'lib/ruby_docx/elements/ole_object.rb', line 73

def size
  return @size if @size

  sz = ImageSize.new(self.data)

  @size = [sz.width/7.2, sz.height/7.2]
rescue
  nil
end

#style ⇒ Object 



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# File 'lib/ruby_docx/elements/ole_object.rb', line 83

def style
  if self.size
    "width: #{self.size[0]}px; height: #{self.size[1]}px;"
  else
    nil
  end
end

#to_html ⇒ Object 



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# File 'lib/ruby_docx/elements/ole_object.rb', line 101

def to_html
  if self.style
    if @link
      "<img class=\"Wirisformula\" role='math' src='#{@link}' data-latex=\"#{self.to_latex}\" data-mathml=\"#{self.to_mathml.gsub("\n", "").gsub("<", "«").gsub(">", "»").gsub("\"", "¨")}\" style='#{self.style}' />"
    else
      "<img class=\"Wirisformula\" role='math' src='#{self.base64_data}' data-latex=\"#{self.to_latex}\" data-mathml=\"#{self.to_mathml.gsub("\n", "").gsub("<", "«").gsub(">", "»").gsub("\"", "¨")}\" style='#{self.style}' />"
    end

  else
    if @link
      "<img class=\"Wirisformula\" role='math' src='#{@link}' data-latex=\"#{self.to_latex}\" data-mathml=\"#{self.to_mathml.gsub("\n", "").gsub("<", "«").gsub(">", "»").gsub("\"", "¨")}\" style='height: 13px;' />"
    else
      "<img class=\"Wirisformula\" role='math' src='#{self.base64_data}' data-latex=\"#{self.to_latex}\" data-mathml=\"#{self.to_mathml.gsub("\n", "").gsub("<", "«").gsub(">", "»").gsub("\"", "¨")}\" style='height: 13px;' />"
    end
  end

end

#to_latex ⇒ Object 



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# File 'lib/ruby_docx/elements/ole_object.rb', line 56

def to_latex
  TeXMath.convert("#{self.to_mathml}", :from => :mathml, :to => :tex)
end

#to_mathml ⇒ Object 



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# File 'lib/ruby_docx/elements/ole_object.rb', line 47

def to_mathml
  io = StringIO.new(@zip.read("word/" + @path))
  # xml = Mathtype::Converter.new(io)
  # # puts xml.to_xml
  # xml.to_xml

  mathml = MathTypeToMathML::Converter.new(io).convert
end

#to_png ⇒ Object 



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# File 'lib/ruby_docx/elements/ole_object.rb', line 60

def to_png
  @image_path ||= Calculus::Expression.new("#{self.to_latex}", :parse => false).to_png
  File.read(@image_path)
end

#to_s ⇒ Object 



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# File 'lib/ruby_docx/elements/ole_object.rb', line 119

def to_s
  self.to_latex.to_s
end