using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

using HiQPdfClient;

namespace HiQPdf_Demo
{
    public partial class ConvertManyHtmlToPdf : System.Web.UI.Page
    {
        protected void buttonCreatePdf_Click(object sender, EventArgs e)
        {
            string serverIP = textBoxServerIP.Text;
            uint serverPort = uint.Parse(textBoxServerPort.Text);
            string serverPassword = textBoxServerPassword.Text;

            // create an empty PDF document
            PdfDocument document = new PdfDocument(serverIP, serverPort);

            // use server password if necessary
            if (serverPassword.Length > 0)
                document.ServerPassword = serverPassword;

            // set a demo serial number
            document.SerialNumber = "YCgJMTAE-BiwJAhIB-EhlWTlBA-UEBRQFBA-U1FOUVJO-WVlZWQ==";

            // add a page to document
            PdfPage page1 = document.AddPage(PdfPageSize.A4, new PdfMargins(5), PdfPageOrientation.Portrait);

            try
            {
                // set the document header and footer before adding any objects to document
                SetHeader(document);
                SetFooter(document);

                // layout the HTML from URL 1
                PdfHtml html1 = new PdfHtml(textBoxUrl1.Text);
                html1.WaitBeforeConvert = 2;
                page1.Layout(html1);

                // determine the PDF page where to add URL 2
                if (checkBoxNewPage.Checked)
                {
                    // URL 2 is laid out on a new page with the selected orientation
                    PdfPage page2 = document.AddPage(PdfPageSize.A4, new PdfMargins(5), GetSelectedPageOrientation());

                    // layout the HTML from URL 2
                    PdfHtml html2 = new PdfHtml(textBoxUrl2.Text);
                    html2.WaitBeforeConvert = 2;
                    page2.Layout(html2);
                }
                else
                {
                    // URL 2 is laid out immediately after URL 1
                    // using the document realtive flow layout
                    PdfHtml html2 = new PdfHtml(textBoxUrl2.Text);
                    html2.WaitBeforeConvert = 2;
                    document.Layout(html2);
                }

                // write the PDF document to a memory buffer
                byte[] pdfBuffer = document.WriteToMemory();

                // inform the browser about the binary data format
                HttpContext.Current.Response.AddHeader("Content-Type", "application/pdf");

                // let the browser know how to open the PDF document and the file name
                HttpContext.Current.Response.AddHeader("Content-Disposition", String.Format("attachment; filename=ConvertManyHtmlToPdf.pdf; size={0}",
                            pdfBuffer.Length.ToString()));

                // write the PDF buffer to HTTP response
                HttpContext.Current.Response.BinaryWrite(pdfBuffer);

                // call End() method of HTTP response to stop ASP.NET page processing
                HttpContext.Current.Response.End();
            }
            finally
            {
                document.Close();
            }
        }

        private void SetHeader(PdfDocument document)
        {
            if (!checkBoxAddHeader.Checked)
                return;

            // create the document header
            document.CreateHeaderCanvas(50);

            // add PDF objects to the header canvas
            string headerImageFile = Server.MapPath("~") + @"\DemoFiles\Images\HiQPdfLogo.png";
            PdfImage logoHeaderImage = new PdfImage(5, 5, 40, headerImageFile);
            document.Header.Layout(logoHeaderImage);

            // layout HTML in header
            PdfHtml headerHtml = new PdfHtml(50, 5, @"<span style=""color:Navy; font-family:Times New Roman; font-style:italic"">
                            Quickly Create High Quality PDFs with </span><a href=""http://www.hiqpdf.com"">HiQPdf</a>", null);
            headerHtml.FitDestHeight = true;
            headerHtml.FontEmbedding = true;
            document.Header.Layout(headerHtml);

            PdfPage startPage = document.Pages[0];
            float headerWidth = startPage.Size.Width - startPage.Margins.Left - startPage.Margins.Right;
            float headerHeight = document.Header.Height;

            // create a border for header
            PdfRectangle borderRectangle = new PdfRectangle(1, 1, headerWidth - 2, headerHeight - 2);
            borderRectangle.LineStyle.LineWidth = 0.5f;
            borderRectangle.ForeColor = PdfColor.Navy;
            document.Header.Layout(borderRectangle);
        }

        private void SetFooter(PdfDocument document)
        {
            if (!checkBoxAddFooter.Checked)
                return;

            //create the document footer
            document.CreateFooterCanvas(50);

            // layout HTML in footer
            PdfHtml footerHtml = new PdfHtml(5, 5, @"<span style=""color:Navy; font-family:Times New Roman; font-style:italic"">
                            Quickly Create High Quality PDFs with </span><a href=""http://www.hiqpdf.com"">HiQPdf</a>", null);
            footerHtml.FitDestHeight = true;
            footerHtml.FontEmbedding = true;
            document.Footer.Layout(footerHtml);

            PdfPage startPage = document.Pages[0];
            float footerWidth = startPage.Size.Width - startPage.Margins.Left - startPage.Margins.Right;
            float footerHeight = document.Footer.Height;

            // add page numbering
            PdfFont pageNumberingFont = new PdfFont("Times New Roman", 8, true);
            PdfText pageNumberingText = new PdfText(5, footerHeight - 12, "Page {CrtPage} of {PageCount}", pageNumberingFont);
            pageNumberingText.HorizontalAlign = PdfTextHAlign.Center;
            pageNumberingText.EmbedSystemFont = true;
            pageNumberingText.ForeColor = PdfColor.DarkGreen;
            document.Footer.Layout(pageNumberingText);

            string footerImageFile = Server.MapPath("~") + @"\DemoFiles\Images\HiQPdfLogo.png";
            PdfImage logoFooterImage = new PdfImage(footerWidth - 40 - 5, 5, 40, footerImageFile);
            document.Footer.Layout(logoFooterImage);

            // create a border for footer
            PdfRectangle borderRectangle = new PdfRectangle(1, 1, footerWidth - 2, footerHeight - 2);
            borderRectangle.LineStyle.LineWidth = 0.5f;
            borderRectangle.ForeColor = PdfColor.DarkGreen;
            document.Footer.Layout(borderRectangle);
        }

        private PdfPageOrientation GetSelectedPageOrientation()
        {
            return (dropDownListPageOrientations.SelectedValue == "Portrait") ?
                PdfPageOrientation.Portrait : PdfPageOrientation.Landscape;
        }

        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                panelNewPageOrientation.Visible = checkBoxNewPage.Checked;

                Master.SelectNode("convertManyHtmlToPdf");

                Master.LoadCodeSample("ConvertManyHtmlToPdf");
            }
        }

        protected void checkBoxNewPage_CheckedChanged(object sender, EventArgs e)
        {
            panelNewPageOrientation.Visible = checkBoxNewPage.Checked;
        }
    }
}