CopyKeepSource.cs
//
// This code is part of GrapeCity Documents for Word samples.
// Copyright (c) GrapeCity, Inc. All rights reserved.
//
using System;
using System.IO;
using System.Drawing;
using System.Linq;
using GrapeCity.Documents.Word;
using GcFont = GrapeCity.Documents.Word.Font;

namespace GcWordWeb.Samples
{
    // This sample shows the use of new in v4.2 FormattingCopyStrategy.KeepSource option.
    // That option allows to keep source formatting even when copying content
    // between documents, and when the documents have similarly named but different styles .
    // [SampleResources("Resources/WordDocs/SampleParagraphs.docx")]
    public class CopyKeepSource
    {
        public GcWordDocument CreateDocx()
        {
            // The name of the style used in both documents:
            const string styleName = "X-style";

            // The target document:
            var doc = new GcWordDocument();

            // Add a paragraph style to the target document:
            var xStyleTgt = doc.Styles.Add(styleName, StyleType.Paragraph);
            xStyleTgt.Font.Color.RGB = Color.Blue;
            xStyleTgt.Font.Bold = true;
            xStyleTgt.ParagraphFormat.Indentation.RightIndent += 72;
            // Add a paragraph with that style:
            var textTgt = $"This paragraph in the target document " +
                $"is associated with a custom paragraph style named \"{styleName}\". " +
                $"That style specifies the font to be blue and bold, and the whole paragraph " +
                $"is indented by 1\" on the right.";
            doc.Body.Paragraphs.Add(textTgt, doc.Styles[styleName]);

            // The source DOCX, we will copy from it to the target document keeping formatting:
            var docSrc = new GcWordDocument();
            // Add a style with the same name to the source:
            var xStyleSrc = docSrc.Styles.Add(styleName, StyleType.Paragraph);
            xStyleSrc.Font.Color.RGB = Color.Red;
            xStyleSrc.Font.Italic = true;
            xStyleSrc.ParagraphFormat.Alignment = ParagraphAlignment.Right;
            xStyleSrc.ParagraphFormat.Indentation.LeftIndent += 72;
            // Add a paragraph with the style, this paragraph will be copied to target:
            var textSrc = "This paragraph is copied from the source to the target DOCX. " +
                $"In the source DOCX, this paragraph was associated with a custom style also named \"{styleName}\". " +
                $"That style specifies the font to be red and italic, the whole paragraph is right-aligned " +
                $"and indented 1\" from the left. " +
                $"Due to a conflict with the same-named but different style in the target document " +
                $"its name is changed to \"{styleName}1\".";
            var paraSrc = docSrc.Body.Paragraphs.Add(textSrc, docSrc.Styles[styleName]);

            // Copy paragraph from source to target using FormattingCopyStrategy.KeepSource:
            paraSrc.GetRange().CopyTo(doc.Body, InsertLocation.End, FormattingCopyStrategy.KeepSource);

            // Done:
            return doc;
        }
    }
}