Class: OoxmlParser::Slide

Inherits:
OOXMLDocumentObject show all
Defined in:
lib/ooxml_parser/pptx_parser/pptx_data/presentation/slide.rb

Constant Summary

Constants inherited from OOXMLDocumentObject

OOXMLDocumentObject::DEFAULT_DIRECTORY_FOR_MEDIA

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from OOXMLDocumentObject

#==, add_to_xmls_stack, copy_file_and_rename_to_zip, copy_media_file, current_xml, dir, encrypted_file?, get_link_from_rels, media_folder, option_enabled?, unzip_file

Constructor Details

#initialize(elements = [], background = nil) ⇒ Slide

Returns a new instance of Slide.



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# File 'lib/ooxml_parser/pptx_parser/pptx_data/presentation/slide.rb', line 10

def initialize(elements = [], background = nil)
  @elements = elements
  @background = background
end

Instance Attribute Details

#alternate_content ⇒ Object

Returns the value of attribute alternate_content.



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# File 'lib/ooxml_parser/pptx_parser/pptx_data/presentation/slide.rb', line 8

def alternate_content
  @alternate_content
end

#background ⇒ Object

Returns the value of attribute background.



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# File 'lib/ooxml_parser/pptx_parser/pptx_data/presentation/slide.rb', line 8

def background
  @background
end

#elements ⇒ Object

Returns the value of attribute elements.



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# File 'lib/ooxml_parser/pptx_parser/pptx_data/presentation/slide.rb', line 8

def elements
  @elements
end

#timing ⇒ Object

Returns the value of attribute timing.



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# File 'lib/ooxml_parser/pptx_parser/pptx_data/presentation/slide.rb', line 8

def timing
  @timing
end

#transition ⇒ Object

Returns the value of attribute transition.



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# File 'lib/ooxml_parser/pptx_parser/pptx_data/presentation/slide.rb', line 8

def transition
  @transition
end

Class Method Details

.parse(path_to_slide_xml) ⇒ Object 



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# File 'lib/ooxml_parser/pptx_parser/pptx_data/presentation/slide.rb', line 63

def self.parse(path_to_slide_xml)
  slide = Slide.new
  OOXMLDocumentObject.add_to_xmls_stack(path_to_slide_xml)
  doc = Nokogiri::XML(File.open(OOXMLDocumentObject.current_xml))
  doc.xpath('//p:sld/*').each do |slide_node_child|
    case slide_node_child.name
    when 'cSld'
      slide_node_child.xpath('*').each do |common_slide_node_child|
        case common_slide_node_child.name
        when 'spTree'
          common_slide_node_child.xpath('*').each do |slide_element_node|
            case slide_element_node.name
            when 'nvGrpSpPr'
            when 'grpSpPr'
            when 'sp'
              slide.elements << PresentationShape.parse(slide_element_node).dup
            when 'pic'
              slide.elements << DocxPicture.parse(slide_element_node)
            when 'graphicFrame'
              slide.elements << GraphicFrame.parse(slide_element_node)
            when 'grpSp'
              slide.elements << ShapesGrouping.parse(slide_element_node)
            end
          end
        when 'bg'
          slide.background = Background.parse(common_slide_node_child)
        end
      end
    when 'clrMapOvr'
    when 'timing'
      slide.timing = Timing.parse(slide_node_child)
    when 'transition'
      slide.transition = Transition.parse(slide_node_child)
    when 'AlternateContent'
      slide.alternate_content = PresentationAlternateContent.parse(slide_node_child)
    end
  end
  OOXMLDocumentObject.xmls_stack.pop
  slide
end

Instance Method Details

#content_distribute(object, slide_size) ⇒ Object 



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# File 'lib/ooxml_parser/pptx_parser/pptx_data/presentation/slide.rb', line 57

def content_distribute(object, slide_size)
  return [:horizontally, :vertically] if content_horizontal_align(object, slide_size) == :center && content_vertical_align(object, slide_size) == :middle
  return [:horizontally] if content_horizontal_align(object, slide_size) == :center
  return [:vertically] if content_vertical_align(object, slide_size) == :middle
end

#content_horizontal_align(object, slide_size) ⇒ Object 



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# File 'lib/ooxml_parser/pptx_parser/pptx_data/presentation/slide.rb', line 41

def content_horizontal_align(object, slide_size)
  transform = transform_of_object(object)
  return :left if transform.offset.x == 0
  return :center if ((slide_size.width / 2) - (transform.extents.x / 2)).round(1) == transform.offset.x.round(1)
  return :right if (slide_size.width - transform.extents.x).round(1) == transform.offset.x.round(1)
  :unknown
end

#content_vertical_align(object, slide_size) ⇒ Object 



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# File 'lib/ooxml_parser/pptx_parser/pptx_data/presentation/slide.rb', line 49

def content_vertical_align(object, slide_size)
  transform = transform_of_object(object)
  return :top if transform.offset.y == 0
  return :middle if ((slide_size.height / 2) - (transform.extents.y / 2)).round(1) == transform.offset.y.round(1)
  return :bottom if (slide_size.height - transform.extents.y).round(1) == transform.offset.y.round(1)
  :unknown
end

#graphic_frames ⇒ Object 



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# File 'lib/ooxml_parser/pptx_parser/pptx_data/presentation/slide.rb', line 19

def graphic_frames
  @elements.select { |cur_element| cur_element.is_a?(GraphicFrame) }
end

#nonempty_elements ⇒ Object 



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# File 'lib/ooxml_parser/pptx_parser/pptx_data/presentation/slide.rb', line 15

def nonempty_elements
  @elements.select { |cur_shape| !cur_shape.text_body.paragraphs.first.characters.empty? }
end

#transform_of_object(object) ⇒ OOXMLDocumentObject

Get transform property of object, by object type

Parameters:

  • object (Symbol) —

    type of object: :image, :chart, :table, :shape

Returns:



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# File 'lib/ooxml_parser/pptx_parser/pptx_data/presentation/slide.rb', line 26

def transform_of_object(object)
  case object
  when :image
    return elements.find { |e| e.is_a? Picture }.properties.transform
  when :chart
    return elements.find { |e| e.is_a? GraphicFrame }.transform
  when :table
    return elements.find { |e| e.is_a? GraphicFrame }.transform
  when :shape
    return elements.find { |e| !e.shape_properties.preset.nil? }.shape_properties.transform
  else
    raise "Dont know this type object - #{object}"
  end
end