//
// This code is part of Document Solutions for Word demos.
// Copyright (c) MESCIUS inc. All rights reserved.
//
using System;
using System.IO;
using System.Drawing;
using GrapeCity.Documents.Word;
using GrapeCity.Documents.Imaging;

namespace DsWordWeb.Demos
{
    // This sample adds a paragraph of text, splits it in the middle,
    // and inserts a picture into the split position.
    // This sequence is repeated several times with the same text and picture,
    // but with different picture wrapping styles and alignments.
    public class PictureWrap
    {
        public GcWordDocument CreateDocx()
        {
            GcWordDocument doc = new GcWordDocument();
            doc.Styles.DefaultParagraphFormat.Alignment = ParagraphAlignment.Both;

            // Load picture data:
            var picBytes = File.ReadAllBytes(Path.Combine("Resources", "Images", "road.jpg"));
            // Create a GcBitmap so that we can find out the native picture size:
            var image = new GcBitmap(picBytes);
            // Scale picture to a smallish size:
            var width = doc.Body.Sections.Last.PageSetup.ClientWidth / 6;
            var height = image.Height * (width / image.Width);

            // The section:
            var sec = doc.Body.Sections.First;
            // The paragraphs collection:
            var pars = sec.GetRange().Paragraphs;
            // Generate a sample string (used in all sample paragraphs):
            var str = Util.LoremIpsumPar(10, 10, 10, 10);
            // Header:
            pars.Add("Different picture wrapping styles and alignments.", doc.Styles[BuiltInStyleId.Heading1]);

            // Function to insert a sized picture into the middle of a paragraph:
            Func<string, Picture> addPicture = (caption_) => {
                pars.Add(caption_, doc.Styles[BuiltInStyleId.Heading2]);
                var par_ = pars.Add(str);
                var text_ = par_.GetRange().Texts.First.Split(str.Length / 2);
                var run_ = text_.ParentRun.Split(text_, InsertLocation.Before);
                run_ = run_.Previous;
                var pic_ = run_.GetRange().Pictures.Add(picBytes, "image/jpeg");
                pic_.Size.Width.Value = width;
                pic_.Size.Height.Value = height;
                return pic_;
            };

            // Add picture using different wrapping styles and alignments:
            var pic = addPicture("Wrapping style 'In line with text':");

            pic = addPicture("Wrapping style 'Square', centered:");
            pic.WrapFormat.Type = WrapType.Square;
            pic.Position.Horizontal.Type = ShapePositionType.Alignment;
            pic.Position.Horizontal.Alignment = ShapeHorizontalRelativeAlignment.Center;

            pic = addPicture("Wrapping style 'Tight', centered:");
            pic.WrapFormat.Type = WrapType.Tight;
            pic.Position.Horizontal.Type = ShapePositionType.Alignment;
            pic.Position.Horizontal.Alignment = ShapeHorizontalRelativeAlignment.Center;

            // Add page break:
            sec.GetRange().Runs.Last.GetRange().Texts.AddBreak(BreakType.Page);

            pic = addPicture("Wrapping style 'Through', left aligned:");
            pic.WrapFormat.Type = WrapType.Through;
            pic.Position.Horizontal.Type = ShapePositionType.Alignment;
            pic.Position.Horizontal.Alignment = ShapeHorizontalRelativeAlignment.Left;

            pic = addPicture("Wrapping style 'Top and Bottom', right aligned:");
            pic.WrapFormat.Type = WrapType.TopBottom;
            pic.Position.Horizontal.Type = ShapePositionType.Alignment;
            pic.Position.Horizontal.Alignment = ShapeHorizontalRelativeAlignment.Right;

            pic = addPicture("Wrapping style 'Behind text', left aligned:");
            pic.WrapFormat.BehindText = true;
            pic.WrapFormat.Type = WrapType.None;
            pic.Position.Horizontal.Type = ShapePositionType.Alignment;
            pic.Position.Horizontal.Alignment = ShapeHorizontalRelativeAlignment.Left;

            // Add page break:
            sec.GetRange().Runs.Last.GetRange().Texts.AddBreak(BreakType.Page);

            pic = addPicture("Wrapping style 'In front of text', right aligned:");
            pic.WrapFormat.BehindText = false;
            pic.WrapFormat.Type = WrapType.None;
            pic.Position.Horizontal.Type = ShapePositionType.Alignment;
            pic.Position.Horizontal.Alignment = ShapeHorizontalRelativeAlignment.Right;

            pars.Add("The End.");

            // Done:
            return doc;
        }
    }
}