using System;
using System.Collections.Generic;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

using System.Drawing;

// Use EVO PDF Namespace
using EvoPdfClient;

namespace EvoHtmlToPdfDemo.HTML_to_PDF.Table_of_Contents
{
    public partial class Merge_Table_of_Contents : System.Web.UI.Page
    {
        protected void convertToPdfButton_Click(object sender, EventArgs e)
        {
            // Get the server IP and port
            String serverIP = textBoxServerIP.Text;
            uint serverPort = uint.Parse(textBoxServerPort.Text);

            // Create the PDF document where to add the HTML documents
            Document pdfDocument = null;
            if (radioButtonUseTcpService.Checked)
                pdfDocument = new Document(serverIP, serverPort);
            else
                pdfDocument = new Document(true, textBoxWebServiceUrl.Text);

            // Set optional service password
            if (textBoxServicePassword.Text.Length > 0)
                pdfDocument.ServicePassword = textBoxServicePassword.Text;

            // Set license key received after purchase to use the converter in licensed mode
            // Leave it not set to use the converter in demo mode
            pdfDocument.LicenseKey = "4W9+bn19bn5ue2B+bn1/YH98YHd3d3c=";

            // Create a PDF page where to add the first HTML
            PdfPage firstPdfPage = pdfDocument.AddPage();

            // Enable the creation of a table of contents from H1 to H6 tags found in HTML
            pdfDocument.TableOfContents.AutoTocItemsEnabled = autoTableOfContentsCheckBox.Checked;

            // Optionally set the table of contents title
            pdfDocument.TableOfContents.Title = "Table of Contents";

            // Optionally set the title style using CSS sttributes
            pdfDocument.TableOfContents.TitleStyle = "color:navy; font-family:'Times New Roman'; font-size:28px; font-weight:normal";

            // Optionally set the style of level 1 items in table of contents
            string level1TextStyle = "color:black; font-family:'Times New Roman'; font-size:20px; font-weight:normal; font-style:normal; background-color:#F0F0F0";
            pdfDocument.TableOfContents.SetItemStyle(1, level1TextStyle);

            // Optionally set the page numbers style of level 1 items in table of contents
            string level1PageNumberStyle = "color:black; padding-right:3px; background-color:#F0F0F0; font-size:14px; font-weight:bold";
            pdfDocument.TableOfContents.SetPageNumberStyle(1, level1PageNumberStyle);

            // Create the first HTML to PDF element
            HtmlToPdfElement firstHtml = new HtmlToPdfElement(0, 0, firstUrlTextBox.Text);

            // Optionally set a delay before conversion to allow asynchonous scripts to finish
            firstHtml.ConversionDelay = 2;

            // Enable or disable the table of contents for the first HTML document
            firstHtml.TableOfContentsEnabled = includeFirstHtmlTocCheckBox.Checked;

            // Add the first HTML to PDF document
            firstPdfPage.AddElement(firstHtml);

            PdfPage secondPdfPage = null;

            // Create the second HTML to PDF element
            HtmlToPdfElement secondHtml = new HtmlToPdfElement(0, 0, secondUrlTextBox.Text);

            // Optionally set a delay before conversion to allow asynchonous scripts to finish
            secondHtml.ConversionDelay = 2;

            // Enable or disable the table of contents for the second HTML document
            secondHtml.TableOfContentsEnabled = includeSecondHtmlTocCheckBox.Checked;

            if (startNewPageCheckBox.Checked)
            {
                // Create a PDF page where to add the second HTML
                secondPdfPage = pdfDocument.AddPage();

                // Add the second HTML to PDF document
                secondPdfPage.AddElement(secondHtml);
            }
            else
            {
                // Add the second HTML right after the first one
                pdfDocument.AddElement(secondHtml);
            }

            // Save the PDF document in a memory buffer
            byte[] outPdfBuffer = pdfDocument.Save();

            // Send the PDF as response to browser

            // Set response content type
            Response.AddHeader("Content-Type", "application/pdf");

            // Instruct the browser to open the PDF file as an attachment or inline
            Response.AddHeader("Content-Disposition", String.Format("attachment; filename=Merge_Table_of_Contents.pdf; size={0}", outPdfBuffer.Length.ToString()));

            // Write the PDF document buffer to HTTP response
            Response.BinaryWrite(outPdfBuffer);

            // End the HTTP response and stop the current page processing
            Response.End();
        }

        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                sampleCodeLiteral.Text = System.IO.File.ReadAllText(Server.MapPath("~/DemoAppFiles/Input/Code_Samples/CSharp/AspNet/HTML_to_PDF/Table_of_Contents/Multiple_HTML.html"));
                descriptionLiteral.Text = System.IO.File.ReadAllText(Server.MapPath("~/DemoAppFiles/Input/Descriptions/AspNet/HTML_to_PDF/Table_of_Contents/Multiple_HTML.html"));

                Master.CollapseAll();
                Master.ExpandNode("HTML_to_PDF");
                Master.ExpandNode("Table_of_Contents");
                Master.SelectNode("Merge_Table_of_Contents");
            }
        }

        protected void demoMenu_MenuItemClick(object sender, MenuEventArgs e)
        {
            switch (e.Item.Value)
            {
                case "Live_Demo":
                    demoMultiView.SetActiveView(liveDemoView);
                    break;
                case "Description":
                    demoMultiView.SetActiveView(descriptionView);
                    break;
                case "Sample_Code":
                    demoMultiView.SetActiveView(sampleCodeView);
                    break;
                default:
                    break;
            }
        }
    }
}