// 完毕：
using System;
using System.IO;
using System.Drawing;
using GrapeCity.Documents.Pdf;
using GrapeCity.Documents.Text;
using GrapeCity.Documents.Drawing;
using GCTEXT = GrapeCity.Documents.Text;
using GCDRAW = GrapeCity.Documents.Drawing;

namespace DsPdfWeb.Demos.Basics
{
    // Shows how to easily render a simple bullet list using a single TextLayout.
    public class EasyBulletList
    {
        public int CreatePDF(Stream stream)
        {
            const int FontSize = 12;
            var doc = new GcPdfDocument();
            var page = doc.Pages.Add();
            var g = page.Graphics;
            var tl = g.CreateTextLayout();

            var img = GCDRAW.Image.FromFile(Path.Combine("Resources", "ImagesBis", "2020-website-gcdocs-headers_tall.png"));
            var rc = page.Bounds;
            rc.Height *= 0.65f;
            g.DrawImage(img, rc, null, ImageAlign.StretchImage);

            var ip = new PointF(48, 72);

            var font = GCTEXT.Font.FromFile(Path.Combine("Resources", "Fonts", "OpenSans-Regular.ttf"));
            var tfCap = new TextFormat() { Font = font, FontSize = FontSize * 1.6f, ForeColor = Color.White };
            var tf = new TextFormat() { Font = font, FontSize = FontSize, ForeColor = Color.White };
            tl.MaxWidth = 72 * 5;

            // Header:
            tl.AppendLine("Fast, Efficient Document APIs for .NET 5 and Java Applications", tfCap);
            tl.AppendLine(tfCap);
            tl.AppendLine("Take total control of your documents with ultra-fast, low-footprint APIs for enterprise apps.", tf);
            tl.AppendLine(tf);
            g.DrawTextLayout(tl, ip);

            // Bullet list:
            ip.Y += tl.ContentHeight;
            tl.Clear();
            const string bullet = "\x2022\x2003";
            tl.FirstLineIndent = -g.MeasureString(bullet, tf).Width;
            tl.ParagraphSpacing += 4;

            tl.Append(bullet, tf);
            tl.AppendLine("Generate, load, edit, save XLSX spreadsheets, PDF, Images, and DOCX files using C# .NET, VB.NET, or Java", tf);
            tl.Append(bullet, tf);
            tl.AppendLine("View, edit, print, fill and submit documents in JavaScript PDF Viewer and PDF Editor.", tf);
            tl.Append(bullet, tf);
            tl.AppendLine("Compatible on Windows, macOS, and Linux", tf);
            tl.Append(bullet, tf);
            tl.AppendLine("No dependencies on Excel, Word, or Acrobat", tf);
            tl.Append(bullet, tf);
            tl.AppendLine("Deploy to a variety of cloud-based services, including Azure, AWS, and AWS Lambda", tf);
            tl.Append(bullet, tf);
            tl.AppendLine("Product available individually or as a bundle", tf);
            g.DrawTextLayout(tl, ip);

            doc.Save(stream);
            return doc.Pages.Count;
        }
    }
}