using System;

using System.IO;

​

using iText.Kernel.Geom;

using iText.Kernel.Pdf;

using iText.Kernel.Pdf.Canvas;

using iText.Layout;

using iText.Layout.Borders;

using iText.Layout.Element;

using iText.Layout.Layout;

using iText.Layout.Properties;

​

using TextCopy;

​

class Program

{

    static void Main(string[] args)

    {

        Console.WriteLine("PRUEBA 2");

​

            using (var memoryStream = new MemoryStream())

            {

                var pdfWriter = new PdfWriter(memoryStream);

                var pdfDoc = new PdfDocument(pdfWriter);

                var pageSize = PageSize.LEGAL;

                var document = new Document(pdfDoc, pageSize);

​

                var loremIpsum = new Paragraph("Lorem ipsum dolor sit amet, consectetur adipiscing elit. " +

                                                      "Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. " +

                                                      "Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi " +

                                                      "ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit " +

                                                      "in voluptate velit esse cillum dolore eu fugiat nulla pariatur. " +

                                                      "Excepteur sint occaecat cupidatat non proident, sunt in culpa qui " +

                                                      "officia deserunt mollit anim id est laborum.");

​

                var content_table_folio = new Table(1);

                for (int i = 0; i < 20; i++)

                {

                    content_table_folio.AddCell(loremIpsum);

                }

​

                var result = content_table_folio.CreateRendererSubTree().SetParent(document.GetRenderer()).Layout(new LayoutContext(new LayoutArea(0, new Rectangle(0, 0, 400, 10000.0f))));

                var tablaAltura = result.GetOccupiedArea().GetBBox().GetHeight();

                var paginaAltura = pageSize.GetHeight();

                Console.WriteLine($"Altura PAGINA: {tablaAltura}");

                Console.WriteLine($"Altura TABLA: {paginaAltura}");

​

                if (tablaAltura > paginaAltura)

                {

                    // dividir el contenido y calcular páginas

                    int numPaginasNecesarias = (int)Math.Ceiling(tablaAltura / paginaAltura);

                    Console.WriteLine($"Cantidad de páginas necesarias: {numPaginasNecesarias}");

​

                    for (int i = 0; i < numPaginasNecesarias; i++)

                    {

                        // Calcular el índice de inicio y fin del contenido para esta página

                        var startIndex = i * (int)Math.Floor((double)(content_table_folio.GetNumberOfRows() / numPaginasNecesarias));

                        var endIndex = (i + 1) * (int)Math.Floor((double)(content_table_folio.GetNumberOfRows() / numPaginasNecesarias)) - 1;

​

                        Console.WriteLine($"Para está se comienza en el índice: {startIndex} y finaliza en el índice: {endIndex}");

​

                        // NO cortar las celdas a la mitad

                        if (i == numPaginasNecesarias - 1)

                        {

                            endIndex = content_table_folio.GetNumberOfRows() - 1;

                        }

​

                        var partialContentTable = new Table(1);

​

                        for (int j = startIndex; j <= endIndex; j++)

                        {

                            partialContentTable.AddCell(content_table_folio.GetCell(j,0));

                        }

​

                        var page = pdfDoc.AddNewPage();

​

                        dibujarHoja(pdfDoc, page)

                            .Add(partialContentTable);

                    }

                }

                else

                {

                    var page = pdfDoc.AddNewPage();

​

                    dibujarHoja(pdfDoc, page)

                        .Add(content_table_folio);

                }

​

                document.Close();

​

                byte[] pdfBytes = memoryStream.ToArray();

​

                var base64String = Convert.ToBase64String(pdfBytes);

​

                memoryStream.Close();

​

                //ClipboardService.SetText(base64String);

                //Console.WriteLine("El PDF se ha copiado al portapapeles!!!.");

                Console.WriteLine(Environment.NewLine);

                Console.WriteLine(base64String);

            }

    }

​

        protected static Canvas dibujarHoja(PdfDocument pdfDocument, PdfPage page)

        {

            var TamanioPagina = page.GetPageSize();

​

            var width_a = 612;

            var height_a = 92.96;

            var height_b = 3.87;

            var height_c = 42.26;

​

            var pdfcanvas = new PdfCanvas(page);

            var rectangulo = TamanioPagina == PageSize.LEGAL ? new Rectangle(179, 39, 375, 898) : new Rectangle(179, 60, 360, 725);

            var canvas = new Canvas(page, rectangulo);

​

            var datosActa = new Table(3)

                .SetFixedPosition((float)Math.Round(width_a * 10.15 / 100), (float)Math.Round(page.GetPageSize().GetHeight() * 642 / 100 - 312), 112)

                .SetBold()

                .SetTextAlignment(TextAlignment.CENTER)

                .SetBorder(new SolidBorder(SolidBorder.SOLID))

                .AddCell(new Paragraph($"1 A").SetPaddings(8, 0, 8, 0))

                .AddCell(new Paragraph("123456").SetPaddings(8, 0, 8, 0))

                .AddCell(new Paragraph(DateTime.Now.Year.ToString()).SetPaddings(8, 0, 8, 0))

                .AddCell(new Paragraph("Tomo").SetFontSize(8).SetPadding(4).SetCharacterSpacing(1))

                .AddCell(new Paragraph("Acta").SetFontSize(8).SetPadding(4).SetCharacterSpacing(1))

                .AddCell(new Paragraph("Año").SetFontSize(8).SetPadding(4).SetCharacterSpacing(1));

            canvas.Add(datosActa);

​

            pdfcanvas.MoveTo(Math.Round(page.GetPageSize().GetWidth() * 9.48 / 100), Math.Round(page.GetPageSize().GetHeight() * height_b / 100))

                .LineTo(Math.Round(page.GetPageSize().GetWidth() * 90.52 / 100), Math.Round(page.GetPageSize().GetHeight() * height_b / 100))

                .LineTo(Math.Round(page.GetPageSize().GetWidth() * 90.52 / 100), Math.Round(page.GetPageSize().GetHeight() * height_a / 100))

                .LineTo(Math.Round(page.GetPageSize().GetWidth() * 9.48 / 100), Math.Round(page.GetPageSize().GetHeight() * height_a / 100))

                .LineTo(Math.Round(page.GetPageSize().GetWidth() * 9.48 / 100), Math.Round(page.GetPageSize().GetHeight() * height_b / 100))

                .MoveTo(Math.Round(width_a * 29.25 / 100), Math.Round(page.GetPageSize().GetHeight() * height_b / 100))

                .LineTo(Math.Round(width_a * 29.25 / 100), Math.Round(page.GetPageSize().GetHeight() * height_a / 100))

                // Linea horizontal posterior al titutlo del acta

                .MoveTo(Math.Round(page.GetPageSize().GetWidth() * 9.48 / 100), Math.Round(page.GetPageSize().GetHeight() * height_a / 100 - 45))

                .LineTo(Math.Round(width_a * 29.25 / 100), Math.Round(page.GetPageSize().GetHeight() * height_a / 100 - 45))

                //Linea horizontal anterior al texto "Nota de Referencia"

                .MoveTo(Math.Round(page.GetPageSize().GetWidth() * 9.48 / 100), Math.Round(page.GetPageSize().GetHeight() * height_c / 100))

                .LineTo(Math.Round(width_a * 29.25 / 100), Math.Round(page.GetPageSize().GetHeight() * height_c / 100))

                .Stroke();

​

            return canvas;

        }

}