// Copyright (C) 2003-2026, Foxit Software Inc..
// All Rights Reserved.
//
// http://www.foxitsoftware.com
//
// The following code is copyrighted and contains proprietary information and trade secrets of Foxit Software Inc..
// You cannot distribute any part of Foxit PDF SDK to any third party or general public,
// unless there is a separate license agreement with Foxit Software Inc. which explicitly grants you such rights.
//
// This file contains an example to demonstrate how to use Foxit PDF SDK to mark PDF content and
// get marked content from graphics objects.

using System;
using System.IO;

using foxit;
using foxit.common;
using foxit.common.fxcrt;
using foxit.pdf;
using foxit.pdf.graphics;
using foxit.pdf.objects;

namespace marked_contentCS
{
    class marked_content
    {
        static private string output_path = "../output_files/marked_content/";
        static void CreateMarkedContent(PDFPage page)
        {
            long position = page.GetLastGraphicsObjectPosition(GraphicsObject.Type.e_TypeText);
            using (TextObject text_object = TextObject.Create())
            {
                text_object.SetFillColor(0xFF83AF9B);

                // Prepare text state
                using (TextState state = new TextState())
                {
                    state.font_size = 72f;
                    using (state.font = new Font(Font.StandardID.e_StdIDTimesB))
                    {

                        state.textmode = TextState.Mode.e_ModeFill;

                        text_object.SetTextState(page, state, false, 750);

                        text_object.SetText("Marked-Content");
                        page.InsertGraphicsObject(position, text_object);

                        RectF rect = text_object.GetRect();
                        float offset_x = (page.GetWidth() - (rect.right - rect.left)) / 2;
                        float offset_y = page.GetHeight() * 0.618f - (rect.top - rect.bottom) / 2;
                        text_object.Transform(new Matrix2D(1, 0, 0, 1, offset_x, offset_y), false);

                        MarkedContent content = text_object.GetMarkedContent();
                        PDFDictionary span_dict = PDFDictionary.Create();
                        span_dict.SetAtInteger("Direct", 55);
                        content.AddItem("Span", span_dict);

                        // Generate content
                        page.GenerateContent();
                    }
                }
            }
        }

        static void GetMarkedContentObject(String pdf_file)
        {
            using (PDFDoc doc = new PDFDoc(pdf_file))
            {
                ErrorCode ret = doc.Load(null);
                if (ret != ErrorCode.e_ErrSuccess)
                {
                    Console.WriteLine(String.Format("[Failed] Cannot load PDF document %s.\r\n Error message:%d\r\n",
                            pdf_file, ret));
                    return;
                }
                using (PDFPage page = doc.GetPage(0))
                {
                    page.StartParse((int)PDFPage.ParseFlags.e_ParsePageNormal, null, false);
                    long position = page.GetFirstGraphicsObjectPosition(GraphicsObject.Type.e_TypeText);
                    GraphicsObject text_obj = page.GetGraphicsObject(position);
                    MarkedContent content = text_obj.GetMarkedContent();

                    int nCount = content.GetItemCount();
                    String file_info = output_path + "markedcontent.txt";
                    FileStream sfile = new FileStream(file_info, FileMode.OpenOrCreate);
                    StreamWriter sw = new StreamWriter(sfile);
                    // Get marked content property
                    for (int i = 0; i < nCount; i++)
                    {
                        sw.WriteLine("index: " + i);
                        String tag_name = content.GetItemTagName(i);
                        sw.WriteLine("Tag name: " + tag_name);
                        int mcid = content.GetItemMCID(i);
                        sw.WriteLine("mcid: " + mcid);
                    }
                    sw.Close();
                }
            }

        }

        static void Main(String[] args)
        {
            System.IO.Directory.CreateDirectory(output_path);
            string sn = "Rew1vB0TqoMIxX444UcpScARWdhgJpsJfzmyMLR32a0+EgrCjp2NaQ==";
            string key = "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";
            // Initialize library
            ErrorCode error_code = Library.Initialize(sn, key);
            if (error_code != ErrorCode.e_ErrSuccess)
            {
                Console.WriteLine("Library Initialize Error: {0}\n", error_code);
            }
            using (PDFDoc doc = new PDFDoc())
            {
                using (PDFPage page = doc.InsertPage(0, PDFPage.Size.e_SizeLetter))
                {
                    CreateMarkedContent(page);
                    String output_file = output_path + "marked_content.pdf";
                    doc.SaveAs(output_file, (int)PDFDoc.SaveFlags.e_SaveFlagNormal);
                    GetMarkedContentObject(output_file);
                }
            }
            Console.WriteLine("Add marked content to PDF file.");
            Library.Release();
        }
    }
}
