//// This code is part of Document Solutions for PDF .NET demos.// Copyright (c) MESCIUS inc. All rights reserved.//using System;using System.IO;using System.Drawing;using System.Collections.Generic;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{    // This sample shows how to flow a large block of text around rectangular areas,    // in this case images. It also demonstrates how to get the actual bounds    // of an image that has been rendered on a page using a specific ImageAlign.    public class TextAroundImages    {        public int CreatePDF(Stream stream)        {            var doc = new GcPdfDocument();            var g = doc.NewPage().Graphics;            //            // We want to draw 3 images in certain arbitrary locations on the first page,             // and then print a text that would take 2-3 pages, and have it flow around            // the images on the first page.            //            // Get the images and their rectangles. Note that we specify a square            // area for all images - but they will be aligned within that area            // preserving their original aspect ratios, so we will later retrieve            // the actual rectangles where the images were drawn:            using (var imgPuffins = GCDRAW.Image.FromFile("Resources/Images/puffins.jpg"))            using (var imgReds = GCDRAW.Image.FromFile("Resources/Images/reds.jpg"))            using (var imgLavender = GCDRAW.Image.FromFile("Resources/Images/lavender.jpg"))            {                var rectPuffins = new RectangleF(100, 70, 180, 180);                var rectReds = new RectangleF(300, 280, 180, 180);                var rectLavender = new RectangleF(190, 510, 180, 180);                // Set up ImageAlign that would fit and center an image within a specified area,                // preserving the image's original aspect ratio:                var ia = new ImageAlign(ImageAlignHorz.Center, ImageAlignVert.Center, true, true, true, false, false);                // Draw each image, providing an array of rectangles as an output parameter for each DrawImage call,                // so that we get the actual rectangle taken by the image (an array is needed to handle tiled images):                g.DrawImage(imgPuffins, rectPuffins, null, ia, out RectangleF[] rectsPuffins);                g.DrawImage(imgReds, rectReds, null, ia, out RectangleF[] rectsReds);                g.DrawImage(imgLavender, rectLavender, null, ia, out RectangleF[] rectsLavender);                // Create and set up a TextLayout object to print the text:                var tl = g.CreateTextLayout();                tl.DefaultFormat.Font = StandardFonts.Times;                tl.DefaultFormat.FontSize = 9;                tl.TextAlignment = TextAlignment.Justified;                tl.ParagraphSpacing = 72 / 8;                tl.MaxWidth = doc.PageSize.Width;                tl.MaxHeight = doc.PageSize.Height;                // 1/2" margins all around                tl.MarginAll = 72 / 2;                // ObjectRect is the type used to specify the areas to flow around to TextLayout.                // We set up a local function to create an ObjecRect based on an image rectangle,                // adding some padding so that the result looks nicer:                Func<RectangleF, ObjectRect> makeObjectRect = rect_ =>                    new ObjectRect(rect_.X - 6, rect_.Y - 2, rect_.Width + 12, rect_.Height + 4);                // Specify the array of ObjectRects on the TextLayout:                tl.ObjectRects = new List<ObjectRect>()                {                    makeObjectRect(rectsPuffins[0]),                    makeObjectRect(rectsReds[0]),                    makeObjectRect(rectsLavender[0]),                };                // Add several paragraphs of text:                tl.Append(Common.Util.LoremIpsum(7, 5, 6, 28, 32));                // Calculate glyphs and lay out the text:                tl.PerformLayout(true);                // Split options to control splitting of text between pages.                // We can either use the default ctor and set up values like MaxWidth etc,                // or create a TextSplitOptions based on the TextLayout, and clear RestObjectRects:                var to = new TextSplitOptions(tl)                {                    RestObjectRects = null,                    MinLinesInFirstParagraph = 2,                    MinLinesInLastParagraph = 2                };                // In a loop, split and render the text:                while (true)                {                    // 'rest' will accept the text that did not fit:                    var splitResult = tl.Split(to, out TextLayout rest);                    doc.Pages.Last.Graphics.DrawTextLayout(tl, PointF.Empty);                    if (splitResult != SplitResult.Split)                        break;                    tl = rest;                    // We only draw images on the first page:                    tl.ObjectRects = null;                    doc.Pages.Add();                }                // Done:                doc.Save(stream);                return doc.Pages.Count;            }        }    }}