//
// 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 System.Collections.Generic;
using System.Linq;
using GrapeCity.Documents.Word;
using GrapeCity.Documents.Word.Layout;
using GrapeCity.Documents.Pdf.Annotations;

namespace DsWordWeb.Demos
{
    // This sample demonstrates the DsWord Layout API that allows developers during export
    // to PDF to locate in the exported document the Data Template tags and to highlight
    // them or process in some other way. Note that this sample does not bind the template
    // to data (i.e. it does not call the GcWordDocument.DataTemplate.Process() method),
    // it only highlights the tags when the template document is exported to PDF.
    // This functionality can be used for example to review the templates prior to further processing.
    // To use the API when exporting the DOCX:
    // - Set MarkTemplateTagAreas to true in WordLayoutSettings, and
    // - Specify your custom MarkupTemplateTags method in PdfOutputSettings.
    //
    // See also: XingTemplateTags for an example of using this API to modify the tags in the original DOCX.
    public class MarkTagsInPDF
    {
        public GcWordDocument CreateDocx()
        {
            var doc = new GcWordDocument();
            doc.Load(Path.Combine("Resources", "WordDocs", "House_Rental_Template.docx"));
            return doc;
        }

        // Custom Word Layout settings set the MarkTemplateTagAreas property set to true,
        // this makes the layout engine mark locations of Report/Data Template tags
        // in the layout result, so that the tags can be for example highlighted
        // for custom processing.
        public static WordLayoutSettings GetWordLayoutSettings()
        {
            return new WordLayoutSettings()
            {
                MarkTemplateTagAreas = true
            };
        }

        // Custom PDF output settings include a MarkupTemplateTags method
        // that adds markup annotations over Report/Data Template tags
        // present in the original DOCX. For this to work, the WordLayoutSettings
        // (see above) must have the MarkTemplateTagAreas property set to true
        // (it is false by default).
        public static PdfOutputSettings GetPdfOutputSettings()
        {
            var settings = new PdfOutputSettings()
            {
                MarkupTemplateTags = (page, tags) =>
                {
                    foreach (var tag in tags)
                    {
                        foreach (var rect in tag.Areas)
                        {
                            var hilight = new TextMarkupAnnotation
                            {
                                Area = [rect],
                                Color = Color.YellowGreen,
                                MarkupType = TextMarkupType.Highlight,
                                Opacity = 0.4f,
                                RichText = $"Tag Info:<br>Name: <b>{tag?.Info?.Name}</b><br>Text: <b>{tag?.Info?.Text}</b>",
                            };

                            page.Annotations.Add(hilight);
                        }
                    }
                }
            };
            return settings;
        }
    }
}