//
// This code is part of Document Solutions for PDF demos.
// Copyright (c) MESCIUS inc. All rights reserved.
//
using System;
using System.IO;
using System.Drawing;
using System.Numerics;
using System.Collections.Generic;
using GrapeCity.Documents.Pdf;
using GrapeCity.Documents.Drawing;
using GrapeCity.Documents.Text;
using GrapeCity.Documents.Layout;
using GCTEXT = GrapeCity.Documents.Text;
using GCDRAW = GrapeCity.Documents.Drawing;
 
namespace DsPdfWeb.Demos
{
    // This example shows how to use the GrapeCity.Documents.Drawing.TableRenderer
    // class to render a document with a layout typically used in account statements or invoices.
    public class StatementTable
    {
        public int CreatePDF(Stream stream)
        {
            var doc = new GcPdfDocument();
            var p = doc.NewPage();
            p.Size = new SizeF(p.Size.Height, p.Size.Width);
            var g = p.Graphics;
 
            DrawTable(g, g.CanvasSize.Width, g.CanvasSize.Height);
 
            // Save the PDF:
            doc.Save(stream);
            return doc.Pages.Count;
        }
 
        class InfoLine
        {
            public InfoLine(int indent, string text, int sum2021, int sum2020, int sum2019, bool boldText = false,
                bool captionOnly = false, bool drawSign = false, bool thinLine = false, bool boldLine = false)
            {
                Indent = indent;
                Text = text;
                Sum2021 = sum2021;
                Sum2020 = sum2020;
                Sum2019 = sum2019;
                BoldText = boldText;
                CaptionOnly = captionOnly;
                DrawSign = drawSign;
                ThinLine = thinLine;
                BoldLine = boldLine;
            }
            public int Indent { get; }
            public string Text { get; }
            public int Sum2021 { get; }
            public int Sum2020 { get; }
            public int Sum2019 { get; }
            public bool BoldText { get; }
            public bool CaptionOnly { get; }
            public bool DrawSign { get; }
            public bool ThinLine { get; }
            public bool BoldLine { get; }
        }
 
        static void DrawTable(GcGraphics g, float pageWidth, float pageHeight)
        {
            var items = new InfoLine[]
            {
                new InfoLine(0, "Net sales:", 0, 0, 0, captionOnly: true),
                new InfoLine(1, "Products", 297392, 220747, 213883, drawSign: true),
                new InfoLine(1, "Services", 68425, 53768, 46291, thinLine: true),
                new InfoLine(2, "Total net sales", 365817, 274515, 260174, boldText: true),
                new InfoLine(0, "Cost of sales:", 0, 0, 0, captionOnly: true),
                new InfoLine(1, "Products", 192266, 151286, 144996),
                new InfoLine(1, "Services", 20715, 18273, 16786, thinLine: true),
                new InfoLine(2, "Total cost of sales", 212981, 169559, 161782, boldText: true, thinLine: true),
                new InfoLine(3, "Gross margin", 152836, 104956, 98392, boldText: true, thinLine: true),
                new InfoLine(0, "Operating expenses:", 0, 0, 0, captionOnly: true),
                new InfoLine(1, "Research and development", 21914, 18752, 16217),
                new InfoLine(1, "Selling, general and administrative", 21973, 19916, 18245, thinLine: true),
                new InfoLine(2, "Total operating expenses", 43887, 38668, 34462, boldText: true, thinLine: true),
                new InfoLine(0, " ", 0, 0, 0, captionOnly: true),
                new InfoLine(0, "Operating income", 108949, 66288, 63930),
                new InfoLine(0, "Other income/(expense), net", 258, 803, 1807, thinLine: true),
                new InfoLine(0, "Income before provision for income taxes", 109207, 67091, 65737, boldText: true),
                new InfoLine(0, "Provision for income taxes", 14527, 9680, 10481, thinLine: true),
                new InfoLine(0, "Net income", 94680, 57411, 55256, boldText: true, drawSign: true, boldLine: true),
            };
 
            var host = new LayoutHost();
            var view = host.CreateView(pageWidth, pageHeight);
 
            var rt = view.CreateRect();
            // rt.AnchorTopLeft(null, 30, 50);
            rt.AnchorTopLeft(null, 36, 36);
 
            var ta = new TableRenderer(g,
                rt, FixedTableSides.TopLeft,
                rowCount: items.Length + 3,
                columnCount: 7,
                gridLineColor: Color.Transparent,
                gridLineWidth: 0);
 
            var columns = ta.ColumnRects;
            columns[0].SetWidth(320);
            columns[1].SetWidth(25);
            columns[2].SetWidth(100);
            columns[3].SetWidth(25);
            columns[4].SetWidth(100);
            columns[5].SetWidth(25);
            columns[6].SetWidth(100);
 
            var fmt = new TextFormat
            {
                Font = GCTEXT.Font.FromFile(Path.Combine("Resources", "Fonts", "consola.ttf")),
                ForeColor = Color.FromArgb(38, 38, 38),
                FontSize = 11,
                FontSizeInGraphicUnits = true,
            };
            var fmtCaptionBold = new TextFormat(fmt)
            {
                FontBold = true,
                FontSize = 12
            };
            var fmtCaptionLight = new TextFormat(fmt)
            {
                ForeColor = Color.FromArgb(142, 142, 142),
                FontSize = 12
            };
            var fmtBold = new TextFormat(fmt)
            {
                FontBold = true
            };
 
            var csHeader1 = new CellStyle
            {
                TextAlignment = TextAlignment.Center,
                PaddingBottom = 25,
                CreateTextLayout = (g, cs, data) =>
                {
                    var tl = g.CreateTextLayout();
                    tl.AppendLine("ACME Inc.\n\nCONSOLIDATED STATEMENTS OF OPERATIONS", fmtCaptionBold);
                    tl.Append("(in millions, except number of shares which are reflected in thousands and per share amounts)", fmtCaptionLight);
                    return tl;
                }
            };
            ta.AddCell(csHeader1, 0, 0, 1, 7, null);
 
            var csThinLine = new CellStyle
            {
                Background = true,
                Borders = FrameBorders.BottomBorder,
                LinePaddingBottom = -1,
                LineWidth = 1
            };
            var csBoldLine = new CellStyle(csThinLine)
            {
                LinePaddingBottom = -3,
                LineWidth = 3
            };
 
            var csHeader2 = new CellStyle(csThinLine)
            {
                PaddingBottom = 5,
                TextAlignment = TextAlignment.Center,
                TextFormat = fmtBold
            };
            ta.AddCell(csHeader2, 1, 1, 1, 6, "Years ended");
            ta.SetHorizontalGridLineWidth(2, 1);
 
            var csHeader3 = new CellStyle
            {
                PaddingTopBottom = 5,
                TextAlignment = TextAlignment.Center,
                TextFormat = fmtBold
            };
            ta.AddCell(csHeader3, 2, 1, 1, 2, "September 25,\n2021");
            ta.AddCell(csHeader3, 2, 3, 1, 2, "September 26,\n2020");
            ta.AddCell(csHeader3, 2, 5, 1, 2, "September 28,\n2019");
            ta.AddCell(csThinLine, 2, 1, 1, 6);
            ta.SetHorizontalGridLineWidth(3, 1);
 
            var csText = new CellStyle
            {
                TextFormat = fmt,
                TextAlignment = TextAlignment.Leading,
                PaddingTopBottom = 4
            };
            var csBoldText = new CellStyle(csText)
            {
                TextFormat = fmtBold
            };
            var csNum = new CellStyle
            {
                TextFormat = fmt,
                TextAlignment = TextAlignment.Trailing,
                PaddingTopBottom = 4,
                PaddingRight = 10
            };
            var csBoldNum = new CellStyle(csNum)
            {
                TextFormat = fmtBold
            };
            var csBand = new CellStyle
            {
                FillColor = Color.FromArgb(245, 245, 245),
                Background = true
            };
 
            for (int i = 0; i < items.Length; i++)
            {
                var item = items[i];
                int rowIndex = i + 3;
 
                if ((i & 1) != 0)
                {
                    ta.AddCell(csBand, rowIndex, 0, 1, 7);
                }
 
                var tc = ta.AddCell(item.BoldText ? csBoldText : csText, rowIndex, 0, item.Text);
                tc.TextLayout.FirstLineIndent = item.Indent * 8 + 10;
 
                var csCurrNum = item.BoldText ? csBoldNum : csNum;
                if (item.DrawSign)
                {
                    ta.AddCell(csCurrNum, rowIndex, 1, "$");
                    ta.AddCell(csCurrNum, rowIndex, 3, "$");
                    ta.AddCell(csCurrNum, rowIndex, 5, "$");
                }
                if (!item.CaptionOnly)
                {
                    ta.AddCell(csCurrNum, rowIndex, 2, item.Sum2021.ToString("n0"));
                    ta.AddCell(csCurrNum, rowIndex, 4, item.Sum2020.ToString("n0"));
                    ta.AddCell(csCurrNum, rowIndex, 6, item.Sum2019.ToString("n0"));
                }
 
                if (item.ThinLine)
                {
                    ta.AddCell(csThinLine, rowIndex, 1, 1, 6);
                    ta.SetHorizontalGridLineWidth(rowIndex + 1, 1);
                }
                else if (item.BoldLine)
                {
                    ta.AddCell(csBoldLine, rowIndex, 1, 1, 6);
                    ta.SetHorizontalGridLineWidth(rowIndex + 1, 3);
                }
            }
 
            ta.Render();
        }
    }
}