/// <summary>
        /// Get a print dialog, defaulted to default printer and default printer's preferences.
        /// </summary>
        protected override void OnPrintCommand()
        {
            // get a print dialog, defaulted to default printer and default printer's preferences.
              PrintDialog printDialog = new PrintDialog();

              printDialog.PrintQueue = mPrintQueue;

              printDialog.PrintTicket = mPrintTicket;

              if (printDialog.ShowDialog() == true)
              {
            mPrintQueue = printDialog.PrintQueue;

            mPrintTicket = printDialog.PrintTicket;

            printDialog.PrintDocument(this.Document.DocumentPaginator, "PrintPreviewJob");
              }
        }

        protected void PrintData(string username, PrintTicket ticket, string printername, string jobname, byte[] data, string driver)
        {
            using (Ghostscript gs = new Ghostscript())
            {
                if (driver != null)
                {
                    byte[] outdata = gs.ProcessData(ticket, data, driver, null, null);

                    WindowsRawPrintJob pj = new WindowsRawPrintJob
                    {
                        JobName = jobname,
                        PrinterName = printername,
                        UserName = username,
                        PrintData = outdata,
                        RunAsUser = true
                    };

                    pj.Print();
                }
                else
                {
                    gs.PrintData(username, ticket, printername, jobname, data, new string[] { });
                }
            }
        }

        public static PrintTicket ModifyPrintTicket(PrintTicket ticket, string featureName, string newValue)
        {
            if (ticket == null)
            {
                throw new ArgumentNullException("ticket");
            }

            var xmlDoc = new XmlDocument();
            xmlDoc.Load(ticket.GetXmlStream());

            var manager = new XmlNamespaceManager(xmlDoc.NameTable);
            manager.AddNamespace(xmlDoc.DocumentElement.Prefix, xmlDoc.DocumentElement.NamespaceURI);

            var xpath = string.Format("//psf:Feature[contains(@name, 'InputBin')]/psf:Option", featureName);
            var node = xmlDoc.SelectSingleNode(xpath, manager);
            if (node != null)
            {
                node.Attributes["name"].Value = newValue;
            }

            var printTicketStream = new MemoryStream();
            xmlDoc.Save(printTicketStream);
            printTicketStream.Position = 0;
            var modifiedPrintTicket = new PrintTicket(printTicketStream);
            return modifiedPrintTicket;
        }

        private static CreateXpsFileResult InternalCreateFileFromXaml(FrameworkElement template, object dataContext)
        {
            string xpsFile = Path.GetTempFileName() + ".xps";

            using (var container = Package.Open(xpsFile, FileMode.Create))
            using (var document = new XpsDocument(container, CompressionOption.SuperFast))
            {
                var coupon = template;

                coupon.DataContext = dataContext;
                coupon.Measure(new Size(double.PositiveInfinity, double.PositiveInfinity));
                coupon.UpdateLayout();

                var ticket = new PrintTicket()
                {
                    PageMediaSize = new PageMediaSize(coupon.DesiredSize.Width, coupon.DesiredSize.Height)
                };

                XpsDocument.CreateXpsDocumentWriter(document).Write(coupon, ticket);

                return new CreateXpsFileResult()
                {
                    Path = xpsFile,
                    Ticket = ticket
                };
            }
        }

		public void PreparePrinting(PrintTicket printTicket, Size pageSize)
		{
			printTicket.PageOrientation = pageSize.Height >= pageSize.Width ? PageOrientation.Portrait : PageOrientation.Landscape;
			var printExtension = _reportProvider as IReportPrintExtension;
			if (printExtension != null)
				printExtension.PreparePrinting(printTicket, pageSize);
		}

        /// <summary>
        /// Invokes a System.Windows.Controls.PrintDialog to print the TextEditor.Document with specified title.
        /// </summary>
        public static void PrintDialog(this TextEditor textEditor, string title)
        {
            Printing.mDocumentTitle = title;

              Printing.InitPageSettings();

              System.Windows.Controls.PrintDialog printDialog = new System.Windows.Controls.PrintDialog();

              printDialog.PrintQueue = mPrintQueue;

              if (mPageSettings.Landscape)
            Printing.mPrintTicket.PageOrientation = PageOrientation.Landscape;

              printDialog.PrintTicket = mPrintTicket;
              printDialog.PrintQueue.DefaultPrintTicket.PageOrientation = mPrintTicket.PageOrientation;

              if (printDialog.ShowDialog() == true)
              {
            Printing.mPrintQueue = printDialog.PrintQueue;

            Printing.mPrintTicket = printDialog.PrintTicket;

            printDialog.PrintDocument(CreateDocumentPaginatorToPrint(textEditor), "PrintJob");
              }
        }

		/// <summary>
		/// Ensure Queue and Ticket prepared
		/// </summary>
		private void VerifyPrintSettings()
		{
			if (mPrintQueue == null)
				mPrintQueue = DefaultPrintQueue();

			if (mPrintTicket == null)
				mPrintTicket = DefaultPrintTicket();
		}

        public void PrintData(string username, PrintTicket ticket, string printername, string jobname, byte[] data, string[] inargs)
        {
            string[] devsetup = SetDeviceCommand("%printer%" + printername, jobname, "mswinpr2").ToArray();
            string[] extraargs = new string[] { "-dNOSAFER" };

            SetupUserPrinter(username, printername);

            ProcessData(username, ticket, data, inargs, extraargs, devsetup);
        }

 protected PaginatedPrintData ProcessPCL(byte[] rawdata, Dictionary<string, string> pjljobattribs, PrintTicket ticket)
 {
     PCLXLPrintJob pcljob = new PCLXLPrintJob(rawdata);
     return new PaginatedPrintData
     {
         Prologue = PJLHelper.GetPJL(pjljobattribs, ticket, "PCLXL").Concat(pcljob.Prologue).ToArray(),
         PageData = pcljob.PageData.ToArray(),
         Epilogue = pcljob.Epilogue.Concat(PJLHelper.GetEndJobPJL()).ToArray(),
     };
 }

        public static byte[] GetPJL(Dictionary<string, string> jobattribs, PrintTicket ticket, string language)
        {
            Dictionary<string, string> pjlsettings = new Dictionary<string, string>
            {
                { "DUPLEX", ticket.Duplexing == Duplexing.OneSided ? "OFF" : "ON" },
                { "BINDING", ticket.Duplexing == Duplexing.TwoSidedShortEdge ? "SHORTEDGE" : "LONGEDGE" },
                { "COPIES", (ticket.CopyCount ?? 1).ToString() },
                { "RENDERMODE", ticket.OutputColor == OutputColor.Color ? "COLOR" : "GRAYSCALE" },
                { "STAPLE", GetStapling(ticket.Stapling) }
            };

            return GetPJL(jobattribs, pjlsettings, language);
        }

        /// <summary>
        /// Class constructor
        /// </summary>
        /// <param name="paginator"></param>
        /// <param name="pageSettings"></param>
        /// <param name="printTicket"></param>
        /// <param name="headerFooterfontFamily"></param>
        public DocumentPaginatorWrapper(DocumentPaginator paginator, PageSettings pageSettings, PrintTicket printTicket, FontFamily headerFooterfontFamily)
        {
            m_Margins = ConvertMarginsToPx(pageSettings.Margins);

              if (pageSettings.Landscape)
            m_PageSize = new Size((int)printTicket.PageMediaSize.Height, (int)printTicket.PageMediaSize.Width);
              else
            m_PageSize = new Size((int)printTicket.PageMediaSize.Width, (int)printTicket.PageMediaSize.Height);

              m_Paginator = paginator;
              m_Paginator.PageSize = new Size(m_PageSize.Width - m_Margins.Left - m_Margins.Right, m_PageSize.Height - m_Margins.Top - m_Margins.Bottom);

              m_Typeface = new Typeface(headerFooterfontFamily, FontStyles.Normal, FontWeights.Normal, FontStretches.Normal);
        }

        public void Print(string username, byte[] data, string printername, string jobname, PrintTicket ticket)
        {
            PopplerGDIPrintJob pj = new PopplerGDIPrintJob
            {
                PrintData = data,
                PrinterName = printername,
                PrintTicket = ticket,
                JobName = jobname,
                RunAsUser = username != null,
                UserName = username
            };

            pj.Print();
        }

        void PrintOnClick(object sender, RoutedEventArgs args)
        {
            PrintDialog dlg = new PrintDialog();

            if (prnqueue != null)
                dlg.PrintQueue = prnqueue;

            if (prntkt != null)
                dlg.PrintTicket = prntkt;

            if (dlg.ShowDialog().GetValueOrDefault())
            {
                prnqueue = dlg.PrintQueue;
                prntkt = dlg.PrintTicket;

                DrawingVisual vis = new DrawingVisual();
                DrawingContext dc = vis.RenderOpen();
                Pen pn = new Pen(Brushes.Black, 1);

                Rect rectPage = new Rect(marginPage.Left, marginPage.Top,
                    dlg.PrintableAreaWidth - (marginPage.Left + marginPage.Right),
                    dlg.PrintableAreaHeight - (marginPage.Top + marginPage.Bottom));
                dc.DrawRectangle(null, pn, rectPage);

                FormattedText formtxt = new FormattedText(
                    String.Format("Hello, Printer! {0} x {1}", dlg.PrintableAreaWidth/96, dlg.PrintableAreaHeight/96),
                    CultureInfo.CurrentCulture, FlowDirection.LeftToRight, new Typeface(
                    new FontFamily("Times New Roman"), FontStyles.Italic, FontWeights.Normal, FontStretches.Normal),
                    48, Brushes.Black);

                Size sizeText = new Size(formtxt.Width, formtxt.Height);
                Point ptText = new Point(rectPage.Left + (rectPage.Width - formtxt.Width) / 2,
                    rectPage.Top + (rectPage.Height - formtxt.Height) / 2);

                dc.DrawText(formtxt, ptText);
                dc.DrawRectangle(null,pn, new Rect(ptText, sizeText));

                dc.Close();
                dlg.PrintVisual(vis, Title);
            }
        }

        protected void PrintData(string username, PrintTicket ticket, string printername, string jobname, byte[] data, Dictionary<string, string> pjljobattribs)
        {
            using (Ghostscript gs = new Ghostscript())
            {
                string driver = ticket.OutputColor == OutputColor.Color ? "pxlcolor" : "pxlmono";

                byte[] pcldata = gs.ProcessData(ticket, data, driver, null, null);

                PaginatedPrintData pcljob = ProcessPCL(pcldata, pjljobattribs, ticket);
                WindowsRawPrintJob job = new WindowsRawPrintJob
                {
                    PagedData = pcljob,
                    JobName = jobname,
                    PrinterName = printername,
                    UserName = username,
                    RunAsUser = true
                };

                job.Print();
            }
        }

        void PrintOnExecuted(object sender, ExecutedRoutedEventArgs args)
        {
            PrintDialog dlg = new PrintDialog();

            // Get the PrintQueue and PrintTicket from previous invocations.
            if (prnqueue != null)
                dlg.PrintQueue = prnqueue;

            if (prntkt != null)
                dlg.PrintTicket = prntkt;

            if (dlg.ShowDialog().GetValueOrDefault())
            {
                // Save PrintQueue and PrintTicket from dialog box.
                prnqueue = dlg.PrintQueue;
                prntkt = dlg.PrintTicket;

                // Create a PlainTextDocumentPaginator object.
                PlainTextDocumentPaginator paginator =
                    new PlainTextDocumentPaginator();

                // Set the paginator properties.
                paginator.PrintTicket = prntkt;
                paginator.Text = txtbox.Text;
                paginator.Header = strLoadedFile;
                paginator.Typeface =
                    new Typeface(txtbox.FontFamily, txtbox.FontStyle,
                                 txtbox.FontWeight, txtbox.FontStretch);
                paginator.FaceSize = txtbox.FontSize;
                paginator.TextWrapping = txtbox.TextWrapping;
                paginator.Margins = marginPage;
                paginator.PageSize = new Size(dlg.PrintableAreaWidth,
                                              dlg.PrintableAreaHeight);
                // Print the document.
                dlg.PrintDocument(paginator, Title);
            }
        }

        public static PrintTicket ModifyPrintTicket(PrintTicket ticket, string featureName, string newValue)
        {
            if (ticket == null)
            {
                throw new ArgumentNullException("ticket");
            }

            // read Xml of the PrintTicket
            XmlDocument xmlDoc = new XmlDocument();
            xmlDoc.Load(ticket.GetXmlStream());

            // create NamespaceManager and add PrintSchemaFrameWork-Namespace hinzufugen (should be on DocumentElement of the PrintTicket)
            // Prefix: psf NameSpace: xmlDoc.DocumentElement.NamespaceURI = "http://schemas.microsoft.com/windows/2003/08/printing/printschemaframework"
            XmlNamespaceManager manager = new XmlNamespaceManager(xmlDoc.NameTable);
            manager.AddNamespace(xmlDoc.DocumentElement.Prefix, xmlDoc.DocumentElement.NamespaceURI);

            // search node with desired feature we're looking for and set newValue for it
            string xpath = string.Format("//psf:Feature[@name='{0}']/psfSurpriseption", featureName);
            XmlNode node = xmlDoc.SelectSingleNode(xpath, manager);
            if (node != null)
            {
                node.Attributes["name"].Value = newValue;
            }

            // create a new PrintTicket out of the XML
            MemoryStream printTicketStream = new MemoryStream();
            xmlDoc.Save(printTicketStream);
            printTicketStream.Position = 0;
            PrintTicket modifiedPrintTicket = new PrintTicket(printTicketStream);

            // for testing purpose save the printticket to file
            //FileStream stream = new FileStream("modPrintticket.xml", FileMode.CreateNew, FileAccess.ReadWrite);
            //modifiedPrintTicket.GetXmlStream().WriteTo(stream);

            return modifiedPrintTicket;
        }

        //PrintOnExecuted �̺�Ʈ ȣ��� �߻�
        void PrintOnExecuted(object sender, ExecutedRoutedEventArgs args)
        {
            PrintDialog dlg = new PrintDialog();
            //PrintDialog ��ü����.

            if (prnqueue != null)
                dlg.PrintQueue = prnqueue;
            //���� ���� �����ߴ� ������ ���ٸ�..(ó���״ٸ�) �Ѿ�� �ִٸ�
            //���� printdlg�� �־��ش�.

            if (prntkt != null)
                dlg.PrintTicket = prntkt;
            //���� ����...  (�̰��� ���γ� ���η� �������ϴ°Ͱ� ���� �ɼ�)

            if (dlg.ShowDialog().GetValueOrDefault())
            {   //ok�� ������...
                //PrintDialog���� ������ ������ �Է¹޾� �����´�.
                prnqueue = dlg.PrintQueue;
                prntkt = dlg.PrintTicket;
                //dlg���� ����� ���� �ɼ��� ���߿� �ٽ� �� �� �ֵ���
                //�� ��ü�� �����Ѵ�.

                PlainTextDocumentPaginator paginator =
                    new PlainTextDocumentPaginator();
                //PlainTextDocumentPaginator ��ü ����.
                paginator.PrintTicket = prntkt;
                //������ ���� ������ �����´�.
                paginator.Text = txtbox.Text;
                //������ ������ �����´�.
                paginator.Header = strLoadedFile;
                //������ ������ִ� ������ �����´�.
                paginator.Typeface =
                    new Typeface(txtbox.FontFamily, txtbox.FontStyle,
                                 txtbox.FontWeight, txtbox.FontStretch);
                //���� �۲ÿ� ���� ��Ÿ�ϵ��� �����ش�.  (���⼭�� ���߽�Ÿ�� ���� �ȵ�)
                paginator.FaceSize = txtbox.FontSize;
                //�۲� ������
                paginator.TextWrapping = txtbox.TextWrapping;
                //���õ� Wrapping ������ �����ش�.
                //����ڰ� ������ ��� text�� ���õ� �ΰ����� ������ paginator��ü�� �����ش�.
                paginator.Margins = marginPage;
                //���� ������ �����ش�.
                paginator.PageSize = new Size(dlg.PrintableAreaWidth,
                                              dlg.PrintableAreaHeight);
                //������ ��ü ũ�⸦ �����ش�.
                dlg.PrintDocument(paginator, Title);
                //paginator ��ü�� �̿��Ͽ� ���� ����Ʈ�� �Ѵ�.
                //�� ���������� PlainTextDocumentPaginator.cs�� �ִ� GetPage���� ���Ϲ���
                //�������� ���������ִ� �� ����.
            }
        }

 /* Print ticket handling. You can customize for PrintTicketLevel at
   FixedDocumentSequencePrintTicket, FixedDocumentPrintTicket,
  or FixedPagePrintTicket.  We may want to play around with this some */
 private void PrintTicket(Object sender, WritingPrintTicketRequiredEventArgs e)
 {
     if (e.CurrentPrintTicketLevel ==
             PrintTicketLevel.FixedDocumentSequencePrintTicket)
     {
         PrintTicket pts = new PrintTicket();
         pts.PageOrientation = PageOrientation.Portrait;
         e.CurrentPrintTicket = pts;
     }
 }

 public abstract void WriteAsync(Visual visual, PrintTicket printTicket, object userState);

 public override void Write(FixedDocument fixedDocument, PrintTicket printTicket)
 {
     SerializeObjectTree(fixedDocument);
 }