//
// Copyright (c) 2001-2019 by PDFTron Systems Inc. All Rights Reserved.
//

using System;
using pdftron;
using pdftron.Common;
using pdftron.Filters;
using pdftron.SDF;
using pdftron.PDF;

namespace ElementBuilderTestCS
{
    /// <summary>
    /// Summary description for Class1.
    /// </summary>
    class Class1
    {
        private static pdftron.PDFNetLoader pdfNetLoader = pdftron.PDFNetLoader.Instance();
        static Class1() { }

        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        [STAThread]
        static void Main(string[] args)
        {
            PDFNet.Initialize();

            // Relative path to the folder containing test files.
            string input_path = "../../../../TestFiles/";
            string output_path = "../../../../TestFiles/Output/";


            try
            {
                using (PDFDoc doc = new PDFDoc(input_path + "newsletter.pdf"))
                using (ElementBuilder builder = new ElementBuilder())
                using (ElementWriter writer = new ElementWriter())
                {
                    doc.InitSecurityHandler();
                    Page page = doc.GetPage(1);

                    writer.Begin(page, ElementWriter.WriteMode.e_overlay);

                    builder.PathBegin();

                    // draw rectangle
                    builder.MoveTo(200, 500);
                    builder.LineTo(500, 500);
                    builder.LineTo(500, 300);
                    builder.LineTo(200, 300);
                    builder.LineTo(200, 500);

                    // draw cutout
                    builder.MoveTo(400, 400);
                    builder.CurveTo(400, 427.614, 377.614, 450, 350, 450);
                    builder.CurveTo(322.386, 450, 300, 427.614, 300, 400);
                    builder.CurveTo(300, 372.386, 322.386, 350, 350, 350);
                    builder.CurveTo(377.614, 350, 400, 372.386, 400, 400);

                    // add additional cutouts here
                    // ..

                    Element element = builder.PathEnd();
                    element.SetWindingFill(false); // Important! to get the cutouts correct
                    element.SetPathStroke(false);
                    element.SetPathFill(true);
                    GState gs = element.GetGState();
                    gs.SetFillColorSpace(ColorSpace.CreateDeviceCMYK());
                    gs.SetFillColor(new ColorPt(1, 0, 0, 0)); // cyan
                    writer.WriteElement(element);

                    writer.End();
                    doc.Save(output_path + "clipping.pdf", SDFDoc.SaveOptions.e_linearized);
                }
            }
            catch (PDFNetException e)
            {
                Console.WriteLine(e.Message);
            }

        }
    }
}