add_object (PDF::Writer)

          # File lib/pdf/writer.rb, line 1841
    1841:   def add_object(id, where = :this_page)
    1842:     obj = @loose_objects.detect { |ii| ii == id }
    1843:
    1844:     if obj and @current_contents != obj
    1845:       case where
    1846:       when :all_pages, :this_page
    1847:         @add_loose_objects[obj] = where if where == :all_pages
    1848:         @current_contents.on_page.contents << obj if @current_contents.on_page
    1849:       when :even_pages
    1850:         @add_loose_objects[obj] = where
    1851:         page = @current_contents.on_page
    1852:         add_object(id) if (page.info.page_number % 2) == 0
    1853:       when :odd_pages
    1854:         @add_loose_objects[obj] = where
    1855:         page = @current_contents.on_page
    1856:         add_object(id) if (page.info.page_number % 2) == 1
    1857:       when :all_following_pages
    1858:         @add_loose_objects[obj] = :all_pages
    1859:       when :following_even_pages
    1860:         @add_loose_objects[obj] = :even_pages
    1861:       when :following_odd_pages
    1862:         @add_loose_objects[obj] = :odd_pages
    1863:       end
    1864:     end
    1865:   end