Module: ODT2HTML::AnalyzeGraphics

Included in:
Base
Defined in:
lib/odt2html-nsi/analyze_graphics.rb

Instance Method Summary collapse

Instance Method Details

#copy_image_file(pic_name, directory, filename) ⇒ Object 



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# File 'lib/odt2html-nsi/analyze_graphics.rb', line 50

def copy_image_file( pic_name, directory, filename )
  zipfile = Zip::ZipFile::open( @input_filename )
  inStream = zipfile.get_entry( pic_name )
  if (inStream != nil) then
    inStream = inStream.get_input_stream
    outStream =  File.new("#{directory}#{File::SEPARATOR}#{filename}", "w")
    outStream.binmode
    buf =  inStream.read
    outStream.print buf
    outStream.close
    inStream.close
  end
  zipfile.close
  rescue Exception => e
    #
    # Uncomment next line if you want error output
    # $stderr.puts "Could not find image #{pic_name}"
end

#process_draw_frame(element, output_node) ⇒ Object 



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# File 'lib/odt2html-nsi/analyze_graphics.rb', line 4

def process_draw_frame( element, output_node )
  style_name = register_style( element );
  div = emit_element( output_node, "div", {"class" => style_name} )
  attr = element.attribute("#{@svg_ns}:width")
  if (attr != nil) then
    modify_style_attribute( div, "width", attr.value )
  end
  attr = element.attribute("#{@svg_ns}:height")
  if (attr != nil) then
    modify_style_attribute( div, "height", attr.value )
  end
  process_children( element, div )
end

#process_draw_image(element, output_node) ⇒ Object

Copy an image into user-specified directory, and emit a corresponding <img> element.

If the user has not specified an image directory, then emit a <div> containing the file name.



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# File 'lib/odt2html-nsi/analyze_graphics.rb', line 25

def process_draw_image( element, output_node )
  pic_name = element.attribute("#{@xlink_ns}:href").value
  if (@image_dir != nil) then
    img = emit_element( output_node, "img" )
    img.attributes["alt"] = pic_name

    # Get rid of everything before the last / in the filename
    base_name = pic_name;
    if ((pos = base_name.rindex('/')) != nil) then
      base_name = base_name[pos + 1 .. -1]
    end
    copy_image_file( pic_name, @image_dir, base_name )
    img.attributes["src"] = "#{@image_dir}/#{base_name}"
    width = element.parent.attribute("#{@svg_ns}:width")
    height= element.parent.attribute("#{@svg_ns}:height")
    if (width != nil && height != nil) then
      img.attributes["style"] = "width:#{width.value}; " +
        "height:#{height.value}"
    end
  else
    div = emit_element( output_node, "div" )
    div.add_text( pic_name )
  end
end