module Asposeslidesjava
  module ExportTextToHtml
    def initialize()
        data_dir = File.dirname(File.dirname(File.dirname(File.dirname(__FILE__)))) + '/data/Text/'
                
        # Create an instance of Presentation class
        pres = Rjb::import('com.aspose.slides.Presentation').new(data_dir + 'input.pptx')

        # Get the first slide
        slide= pres.getSlides().get_Item(0)

        # Desired index                                                                                                                  
        index = 0                                                                                                                    
                                                                                                                                    
        # Accessing the added shape                                                                                                      
        ashape = slide.getShapes().get_Item(index)
                                                                                                                                                                                                                                               
        # Creating output html file                                                                                                  
        os = Rjb::import('java.io.FileOutputStream').new(data_dir + "export.html")                                                    
        writer = Rjb::import('java.io.OutputStreamWriter').new(os,"UTF-8")                                                                
                                                                                                                                    
        # Extracting first paragraph as HTML                                                                                        
        # Writing Paragraphs data to HTML by providing paragraph starting index, total paragraphs to be copied                       
        writer.write(ashape.getTextFrame().getParagraphs().exportToHtml(0, ashape.getTextFrame().getParagraphs().getCount(), nil))
        writer.close()                    

        puts "Export text to html, please check the output file."
    end
  end
end