using ComPDFKit.Import;
using ComPDFKit.PDFAnnotation;
using ComPDFKit.PDFDocument;
using ComPDFKit.PDFPage;
using ComPDFKitViewer;
using ComPDFKitViewer.AnnotEvent;
using ComPDFKitViewer.PdfViewer;
using PDF_Master.Helper;
using PDF_Master.Model.BOTA;
using PDF_Master.ViewModels.BOTA;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Forms;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using static Dropbox.Api.Files.SearchMatchTypeV2;

namespace PDF_Master.Views.BOTA
{
    /// <summary>
    /// AnnotationListItem.xaml 的交互逻辑
    /// </summary>
    public partial class AnnotationListItem : System.Windows.Controls.UserControl
    {
        //private Brush strikeoutColor = new SolidColorBrush(Color.FromRgb(0xFF, 0xBB, 0x00));
        public AnnotationListItem()
        {
            InitializeComponent();
        }

        private void GridIco_Loaded(object sender, RoutedEventArgs e)
        {
            if (e.Source is Grid grid)
            {
                if (grid.DataContext == null)
                {
                    //var data=  this.DataContext as AnnotationHandlerEventArgs;
                }
                if (grid.DataContext is AnnotationHandlerEventArgs args)
                {
                    //var args = grid.DataContext as AnnotationHandlerEventArgs;
                    AnnotHandlerEventArgs data = args.AnnotHandlerEventArgs;

                    if (data == null)
                    {
                        return;
                    }
                    TxbMarkupContent.Text = data.MarkupContent;
                    TxbContent.Text = data.Content;
                    switch (data.EventType)
                    {
                        case AnnotArgsType.AnnotFreeText:
                            if (data is FreeTextAnnotArgs freeTextAnnotArgs)
                            {
                                BtnAnnotFreeText.Visibility = Visibility.Visible;
                                //TxbContent.Foreground = new SolidColorBrush(freeTextAnnotArgs.FontColor);
                            }
                            //BOTA - 注释，MVP不处理高亮 / 下划线 / 删除线的样式，只显示文字
                            //文本注释、便签、链接、表格不支持添加附注
                            TxbMarkupContent.Text = Regex.Replace(data.Content, "[\r\n]", " ");
                            TxbMarkupContent.Text = "";
                            break;

                        case AnnotArgsType.AnnotHighlight:
                            if (data is TextHighlightAnnotArgs textHighlightAnnotArgs)
                            {
                                BtnHighlight.Visibility = Visibility.Visible;
                                PathHighlight.Background = new SolidColorBrush(textHighlightAnnotArgs.Color);
                                //PathHighlight.Opacity = textHighlightAnnotArgs.Transparency;
                                //BOTA - 注释，MVP不处理高亮 / 下划线 / 删除线的样式，只显示文字
                                //文本注释、便签、链接、表格不支持添加附注
                                //高亮、下划线、删除线，不是文本注释
                                TxbContent.Text = Regex.Replace(data.MarkupContent, "[\r\n]", " ");
                                TxbMarkupContent.Text = Regex.Replace(data.Content, "[\r\n]", " ");
                            }

                            break;

                        case AnnotArgsType.AnnotFreehand:
                            if (data is FreehandAnnotArgs freehandAnnotArgs)
                            {
                                BtnFreeHand.Visibility = Visibility.Visible;
                                PathFreehand.Fill = new SolidColorBrush(freehandAnnotArgs.InkColor);
                                ImageContext.Visibility = Visibility.Visible;

                                TxbContent.Visibility = Visibility.Collapsed;

                                SetImageContext(args, freehandAnnotArgs);

                                //var encoder = new PngBitmapEncoder();
                                //encoder.Frames.Add(BitmapFrame.Create((BitmapSource)ImageContext.Source));
                                //FileStream file = new FileStream(String.Format($@"C:\Users\oyxh\Desktop\images\PDFText\{data.AnnotIndex}.png"), FileMode.Create);
                                //encoder.Save(file);
                                //file.Close();
                            }
                            if (string.IsNullOrEmpty(data.Content) == false)
                            {
                                TxbMarkupContent.Text = Regex.Replace(data.Content, "[\r\n]", " ");
                            }

                            break;

                        case AnnotArgsType.AnnotSquiggly://波浪线
                            if (data is TextSquigglyAnnotArgs textSquigglyAnnotArgs)
                            {
                                AnnotSquiggly.Visibility = Visibility.Visible;
                                AnnotSquigglycolor.Stroke = new SolidColorBrush(textSquigglyAnnotArgs.Color);
                            }

                            #region TO DO

                            //TextDecoration mySquiggly = new TextDecoration();
                            //Pen myPen = new Pen();
                            //myPen.Brush = new SolidColorBrush((data as TextSquigglyAnnotArgs).Color);
                            //myPen.Brush.Opacity = 0.8;
                            //myPen.Thickness = 2;
                            //myPen.DashStyle = DashStyles.Dash;
                            //mySquiggly.Pen = myPen;
                            //mySquiggly.PenThicknessUnit = TextDecorationUnit.FontRecommended;

                            //TextDecorationCollection myCollection = new TextDecorationCollection();
                            //myCollection.Add(mySquiggly);
                            //TxbContext.TextDecorations = myCollection;

                            #endregion TO DO

                            break;

                        case AnnotArgsType.AnnotStamp:
                            BtnAnnotStamp.Visibility = Visibility.Visible;
                            if (string.IsNullOrEmpty(data.Content) == false)
                            {
                                TxbContent.Text = Regex.Replace(data.Content, "[\r\n]", " ");
                                TxbContent.Text = "";
                                TxbMarkupContent.Text = Regex.Replace(data.Content, "[\r\n]", " ");
                            }
                            break;

                        case AnnotArgsType.AnnotStrikeout://删除线
                            if (data is TextStrikeoutAnnotArgs textStrikeoutAnnotArgs)
                            {
                                BtnAnnotStrikeout.Visibility = Visibility.Visible;

                                PathStrikeoutyColor.Fill = new SolidColorBrush(textStrikeoutAnnotArgs.Color);
                                //BOTA - 注释，MVP不处理高亮 / 下划线 / 删除线的样式，只显示文字
                                //文本注释、便签、链接、表格不支持添加附注

                                //高亮、下划线、删除线，不是文本注释
                                TxbContent.Text = Regex.Replace(data.MarkupContent, "[\r\n]", " ");
                                TxbMarkupContent.Text = Regex.Replace(data.Content, "[\r\n]", " ");
                            }

                            #region to do

                            //TextDecoration myStrikeout = new TextDecoration();
                            //Pen myPen2 = new Pen();
                            //myPen2.Brush = new SolidColorBrush((data as TextStrikeoutAnnotArgs).Color);
                            //myPen2.Brush.Opacity = 0.8;
                            //myPen2.Thickness = 2;
                            //myStrikeout.Pen = myPen2;
                            //myStrikeout.PenOffset = -4;
                            //myStrikeout.PenThicknessUnit = TextDecorationUnit.FontRecommended;
                            //TextDecorationCollection myCollection2 = new TextDecorationCollection();
                            //myCollection2.Add(myStrikeout);
                            ////因为波浪线无法实现 暂时只显示文字 不显示下划线，删除线等
                            //TxbMarkupContent.TextDecorations = myCollection2;

                            #endregion to do

                            break;

                        case AnnotArgsType.AnnotSticky://便签
                            if (data is StickyAnnotArgs stickyAnnotArgs)
                            {
                                BtnAnnotSticky.Visibility = Visibility;
                                PathSticky.Fill = new SolidColorBrush(stickyAnnotArgs.Color);
                            }
                            //BOTA - 注释，MVP不处理高亮 / 下划线 / 删除线的样式，只显示文字
                            //文本注释、便签、链接、表格不支持添加附注

                            TxbMarkupContent.Text = Regex.Replace(data.Content, "[\r\n]", " ");
                            TxbMarkupContent.Text = "";

                            break;

                        case AnnotArgsType.AnnotUnderline:
                            if (data is TextUnderlineAnnotArgs textUnderlineAnnotArgs)
                            {
                                BtnUnderLine.Visibility = Visibility.Visible;
                                RectangleUnderline.Fill = new SolidColorBrush(textUnderlineAnnotArgs.Color);
                            }
                            //BOTA - 注释，MVP不处理高亮 / 下划线 / 删除线的样式，只显示文字
                            //文本注释、便签、链接、表格不支持添加附注

                            //高亮、下划线、删除线，不是文本注释
                            TxbContent.Text = Regex.Replace(data.MarkupContent, "[\r\n]", " ");
                            TxbMarkupContent.Text = Regex.Replace(data.Content, "[\r\n]", " ");
                            //TxbMarkupContent.Text = "";

                            #region TO DO

                            //TextDecoration myUnderline = new TextDecoration();
                            //Pen myPen1 = new Pen();
                            //myPen1.Brush = new SolidColorBrush((data as TextUnderlineAnnotArgs).Color);
                            //myPen1.Brush.Opacity = 0.8;
                            //myPen1.Thickness = 2;
                            //myUnderline.Pen = myPen1;
                            //myUnderline.PenThicknessUnit = TextDecorationUnit.FontRecommended;
                            //TextDecorationCollection myCollection1 = new TextDecorationCollection();
                            //myCollection1.Add(myUnderline);
                            //TxbMarkupContent.TextDecorations = myCollection1;

                            #endregion TO DO

                            break;

                        case AnnotArgsType.AnnotLine:
                            if (data is LineAnnotArgs lineAnnotArgs)
                            {
                                if (lineAnnotArgs.HeadLineType >= (C_LINE_TYPE)1 || lineAnnotArgs.TailLineType >= (C_LINE_TYPE)1)
                                {
                                    BtnSharpArrow.Visibility = Visibility.Visible;
                                    PathArrow.Fill = new SolidColorBrush(lineAnnotArgs.LineColor);
                                }
                                else
                                {
                                    PathSharpLine.Fill = new SolidColorBrush(lineAnnotArgs.LineColor);
                                    BtnSharpLine.Visibility = Visibility.Visible;
                                }
                                ///对于形状注释等只有Note 的处理
                                if (!string.IsNullOrEmpty(data.Content) && string.IsNullOrEmpty(data.MarkupContent))
                                {
                                    TxbContent.Text = Regex.Replace(data.Content, "[\r\n]", " ");
                                    TxbContent.Text = "";
                                }
                                if (string.IsNullOrEmpty(data.Content) == false)
                                {
                                    TxbMarkupContent.Text = Regex.Replace(data.Content, "[\r\n]", " ");
                                }
                            }

                            break;

                        case AnnotArgsType.AnnotSquare:
                            if (data is SquareAnnotArgs squareAnnotArgs)
                            {
                                BtnAnnotSquare.Visibility = Visibility.Visible;
                                RectAnnotSquare.Stroke = new SolidColorBrush(squareAnnotArgs.LineColor);
                                RectAnnotSquare.Fill = new SolidColorBrush(squareAnnotArgs.BgColor);
                                ///对于形状注释等只有Note 的处理
                                if (!string.IsNullOrEmpty(data.Content) && string.IsNullOrEmpty(data.MarkupContent))
                                {
                                    TxbContent.Text = Regex.Replace(data.Content, "[\r\n]", " ");
                                    TxbContent.Text = "";
                                }
                            }
                            if (string.IsNullOrEmpty(data.Content) == false)
                            {
                                TxbMarkupContent.Text = Regex.Replace(data.Content, "[\r\n]", " ");
                            }
                            break;

                        case AnnotArgsType.AnnotCircle:
                            if (data is CircleAnnotArgs circleAnnotArgs)
                            {
                                BtnAnnotCircle.Visibility = Visibility.Visible;
                                EllipseCircle.Stroke = new SolidColorBrush(circleAnnotArgs.LineColor);
                                EllipseCircle.Fill = new SolidColorBrush(circleAnnotArgs.BgColor);
                                ///对于形状注释等只有Note 的处理
                                if (!string.IsNullOrEmpty(data.Content) && string.IsNullOrEmpty(data.MarkupContent))
                                {
                                    TxbContent.Text = Regex.Replace(data.Content, "[\r\n]", " ");
                                    TxbContent.Text = "";
                                }
                            }
                            if (string.IsNullOrEmpty(data.Content) == false)
                            {
                                TxbMarkupContent.Text = Regex.Replace(data.Content, "[\r\n]", " ");
                            }
                            break;

                        case AnnotArgsType.AnnotLink:
                            BtnAnnotLink.Visibility = Visibility.Visible;
                            if (data is LinkAnnotArgs linkAnnotArgs)
                            {
                                if (string.IsNullOrEmpty(linkAnnotArgs.Content))
                                {
                                    if (linkAnnotArgs.DestIndex != -1)
                                    {
                                        TxbContent.Text = string.Format($"To Page {linkAnnotArgs.DestIndex + 1}");
                                    }
                                    else
                                    {
                                        TxbContent.Text = string.Format($"{linkAnnotArgs.URI}");
                                    }
                                }
                            }

                            break;

                        default:
                            break;
                    }
                }
            }
        }

        private void SetImageContext(AnnotationHandlerEventArgs args, FreehandAnnotArgs freehandAnnotArgs)
        {
            if (args == null && freehandAnnotArgs == null)
            {
                return;
            }
            if (args.WriteableBitmap == null)
            {
                return;
            }
            double width = args.WriteableBitmap.Width;
            double height = args.WriteableBitmap.Height;

            CPDFDocument doc = args.Document;
            if (doc != null)
            {
                CPDFPage docPage = doc.PageAtIndex(args.PageIndex, false);
                if (docPage != null)
                {
                    double maxWidth = docPage.PageSize.Width;
                    double maxHeight = docPage.PageSize.Height;
                    ImageContext.MaxHeight = maxHeight;

                    if (width > 168)
                    {
                        ImageContext.Stretch = Stretch.Uniform;
                    }
                    else
                    {
                        if (height >= maxHeight / 2)
                        {
                            //ImageContext.MaxHeight = 900;
                            ImageContext.Stretch = Stretch.None;
                        }

                        if (height < maxHeight / 2)
                        {
                            if (height <= 20)
                            {
                                ImageContext.MinHeight = height;
                                ImageContext.Height = 30;
                            }
                            ImageContext.Stretch = Stretch.None;
                        }
                        //else
                        //{
                        //    ImageContext.Stretch = Stretch.Uniform;
                        //}
                    }
                }
            }
        }

        private void GridIco_DataContextChanged(object sender, DependencyPropertyChangedEventArgs e)
        {
            if (e.NewValue is AnnotationHandlerEventArgs args)
            {
                //var args = grid.DataContext as AnnotationHandlerEventArgs;
                AnnotHandlerEventArgs data = args.AnnotHandlerEventArgs;

                if (data == null)
                {
                    return;
                }
                TxbMarkupContent.Text = data.MarkupContent;
                TxbContent.Text = data.Content;
                switch (data.EventType)
                {
                    case AnnotArgsType.AnnotFreeText:
                        if (data is FreeTextAnnotArgs freeTextAnnotArgs)
                        {
                            BtnAnnotFreeText.Visibility = Visibility.Visible;
                            //TxbContent.Foreground = new SolidColorBrush(freeTextAnnotArgs.FontColor);
                        }
                        //文本注释、便签、链接、表格不支持添加附注
                        TxbMarkupContent.Text = Regex.Replace(data.Content, "[\r\n]", " ");
                        TxbMarkupContent.Text = "";
                        break;

                    case AnnotArgsType.AnnotHighlight:
                        if (data is TextHighlightAnnotArgs textHighlightAnnotArgs)
                        {
                            BtnHighlight.Visibility = Visibility.Visible;
                            PathHighlight.Background = new SolidColorBrush(textHighlightAnnotArgs.Color);
                            //PathHighlight.Opacity = textHighlightAnnotArgs.Transparency;
                            //文本注释、便签、链接、表格不支持添加附注
                            //高亮、下划线、删除线，不是文本注释
                            TxbContent.Text = Regex.Replace(data.MarkupContent, "[\r\n]", " ");
                            TxbMarkupContent.Text = data.Content;
                        }

                        break;

                    case AnnotArgsType.AnnotFreehand:
                        if (data is FreehandAnnotArgs freehandAnnotArgs)
                        {
                            BtnFreeHand.Visibility = Visibility.Visible;
                            PathFreehand.Fill = new SolidColorBrush(freehandAnnotArgs.InkColor);
                            ImageContext.Visibility = Visibility.Visible;

                            TxbContent.Visibility = Visibility.Collapsed;

                            SetImageContext(args, freehandAnnotArgs);

                            //var encoder = new PngBitmapEncoder();
                            //encoder.Frames.Add(BitmapFrame.Create((BitmapSource)ImageContext.Source));
                            //FileStream file = new FileStream(String.Format($@"C:\Users\oyxh\Desktop\images\PDFText\{data.AnnotIndex}.png"), FileMode.Create);
                            //encoder.Save(file);
                            //file.Close();
                        }
                        if (string.IsNullOrEmpty(data.Content) == false)
                        {
                            TxbMarkupContent.Text = data.Content;
                        }

                        break;

                    case AnnotArgsType.AnnotSquiggly://波浪线
                        if (data is TextSquigglyAnnotArgs textSquigglyAnnotArgs)
                        {
                            AnnotSquiggly.Visibility = Visibility.Visible;
                            AnnotSquigglycolor.Stroke = new SolidColorBrush(textSquigglyAnnotArgs.Color);
                        }

                        #region TO DO

                        //TextDecoration mySquiggly = new TextDecoration();
                        //Pen myPen = new Pen();
                        //myPen.Brush = new SolidColorBrush((data as TextSquigglyAnnotArgs).Color);
                        //myPen.Brush.Opacity = 0.8;
                        //myPen.Thickness = 2;
                        //myPen.DashStyle = DashStyles.Dash;
                        //mySquiggly.Pen = myPen;
                        //mySquiggly.PenThicknessUnit = TextDecorationUnit.FontRecommended;

                        //TextDecorationCollection myCollection = new TextDecorationCollection();
                        //myCollection.Add(mySquiggly);
                        //TxbContext.TextDecorations = myCollection;

                        #endregion TO DO

                        break;

                    case AnnotArgsType.AnnotStamp:
                        BtnAnnotStamp.Visibility = Visibility.Visible;
                        if (string.IsNullOrEmpty(data.Content) == false)
                        {
                            TxbContent.Text = Regex.Replace(data.Content, "[\r\n]", " ");
                            TxbContent.Text = "";
                            TxbMarkupContent.Text = data.Content;
                        }
                        break;

                    case AnnotArgsType.AnnotStrikeout://删除线
                        if (data is TextStrikeoutAnnotArgs textStrikeoutAnnotArgs)
                        {
                            BtnAnnotStrikeout.Visibility = Visibility.Visible;

                            PathStrikeoutyColor.Fill = new SolidColorBrush(textStrikeoutAnnotArgs.Color);
                            //文本注释、便签、链接、表格不支持添加附注

                            //高亮、下划线、删除线，不是文本注释
                            TxbContent.Text = Regex.Replace(data.MarkupContent, "[\r\n]", " ");
                            TxbMarkupContent.Text = data.Content;
                        }

                        #region to do

                        //TextDecoration myStrikeout = new TextDecoration();
                        //Pen myPen2 = new Pen();
                        //myPen2.Brush = new SolidColorBrush((data as TextStrikeoutAnnotArgs).Color);
                        //myPen2.Brush.Opacity = 0.8;
                        //myPen2.Thickness = 2;
                        //myStrikeout.Pen = myPen2;
                        //myStrikeout.PenOffset = -4;
                        //myStrikeout.PenThicknessUnit = TextDecorationUnit.FontRecommended;
                        //TextDecorationCollection myCollection2 = new TextDecorationCollection();
                        //myCollection2.Add(myStrikeout);
                        ////因为波浪线无法实现 暂时只显示文字 不显示下划线，删除线等
                        //TxbMarkupContent.TextDecorations = myCollection2;

                        #endregion to do

                        break;

                    case AnnotArgsType.AnnotSticky://便签
                        if (data is StickyAnnotArgs stickyAnnotArgs)
                        {
                            BtnAnnotSticky.Visibility = Visibility;
                            PathSticky.Fill = new SolidColorBrush(stickyAnnotArgs.Color);
                        }
                        //BOTA - 注释，MVP不处理高亮 / 下划线 / 删除线的样式，只显示文字
                        //文本注释、便签、链接、表格不支持添加附注

                        TxbMarkupContent.Text = Regex.Replace(data.Content, "[\r\n]", " ");
                        TxbMarkupContent.Text = "";

                        break;

                    case AnnotArgsType.AnnotUnderline:
                        if (data is TextUnderlineAnnotArgs textUnderlineAnnotArgs)
                        {
                            BtnUnderLine.Visibility = Visibility.Visible;
                            RectangleUnderline.Fill = new SolidColorBrush(textUnderlineAnnotArgs.Color);
                        }
                        //文本注释、便签、链接、表格不支持添加附注

                        //高亮、下划线、删除线，不是文本注释
                        TxbContent.Text = Regex.Replace(data.MarkupContent, "[\r\n]", " ");
                        TxbMarkupContent.Text = data.Content;
                        //TxbMarkupContent.Text = "";

                        #region TO DO

                        //TextDecoration myUnderline = new TextDecoration();
                        //Pen myPen1 = new Pen();
                        //myPen1.Brush = new SolidColorBrush((data as TextUnderlineAnnotArgs).Color);
                        //myPen1.Brush.Opacity = 0.8;
                        //myPen1.Thickness = 2;
                        //myUnderline.Pen = myPen1;
                        //myUnderline.PenThicknessUnit = TextDecorationUnit.FontRecommended;
                        //TextDecorationCollection myCollection1 = new TextDecorationCollection();
                        //myCollection1.Add(myUnderline);
                        //TxbMarkupContent.TextDecorations = myCollection1;

                        #endregion TO DO

                        break;

                    case AnnotArgsType.AnnotLine:
                        if (data is LineAnnotArgs lineAnnotArgs)
                        {
                            if (lineAnnotArgs.HeadLineType >= (C_LINE_TYPE)1 || lineAnnotArgs.TailLineType >= (C_LINE_TYPE)1)
                            {
                                BtnSharpArrow.Visibility = Visibility.Visible;
                                PathArrow.Fill = new SolidColorBrush(lineAnnotArgs.LineColor);
                            }
                            else
                            {
                                PathSharpLine.Fill = new SolidColorBrush(lineAnnotArgs.LineColor);
                                BtnSharpLine.Visibility = Visibility.Visible;
                            }
                            ///对于形状注释等只有Note 的处理
                            if (!string.IsNullOrEmpty(data.Content) && string.IsNullOrEmpty(data.MarkupContent))
                            {
                                TxbContent.Text = Regex.Replace(data.Content, "[\r\n]", " ");
                                TxbContent.Text = "";
                            }
                            if (string.IsNullOrEmpty(data.Content) == false)
                            {
                                TxbMarkupContent.Text = data.Content;
                            }
                        }

                        break;

                    case AnnotArgsType.AnnotSquare:
                        if (data is SquareAnnotArgs squareAnnotArgs)
                        {
                            BtnAnnotSquare.Visibility = Visibility.Visible;
                            RectAnnotSquare.Stroke = new SolidColorBrush(squareAnnotArgs.LineColor);
                            RectAnnotSquare.Fill = new SolidColorBrush(squareAnnotArgs.BgColor);
                            ///对于形状注释等只有Note 的处理
                            if (!string.IsNullOrEmpty(data.Content) && string.IsNullOrEmpty(data.MarkupContent))
                            {
                                TxbContent.Text = Regex.Replace(data.Content, "[\r\n]", " ");
                                TxbContent.Text = "";
                            }
                        }
                        if (string.IsNullOrEmpty(data.Content) == false)
                        {
                            TxbMarkupContent.Text = data.Content;
                        }
                        break;

                    case AnnotArgsType.AnnotCircle:
                        if (data is CircleAnnotArgs circleAnnotArgs)
                        {
                            BtnAnnotCircle.Visibility = Visibility.Visible;
                            EllipseCircle.Stroke = new SolidColorBrush(circleAnnotArgs.LineColor);
                            EllipseCircle.Fill = new SolidColorBrush(circleAnnotArgs.BgColor);
                            ///对于形状注释等只有Note 的处理
                            if (!string.IsNullOrEmpty(data.Content) && string.IsNullOrEmpty(data.MarkupContent))
                            {
                                TxbContent.Text = Regex.Replace(data.Content, "[\r\n]", " ");
                                TxbContent.Text = "";
                            }
                        }
                        if (string.IsNullOrEmpty(data.Content) == false)
                        {
                            TxbMarkupContent.Text = data.Content;
                        }
                        break;

                    case AnnotArgsType.AnnotLink:
                        BtnAnnotLink.Visibility = Visibility.Visible;
                        if (data is LinkAnnotArgs linkAnnotArgs)
                        {
                            if (string.IsNullOrEmpty(linkAnnotArgs.Content))
                            {
                                if (linkAnnotArgs.DestIndex != -1)
                                {
                                    TxbContent.Text = string.Format($"To Page {linkAnnotArgs.DestIndex + 1}");
                                }
                                else
                                {
                                    TxbContent.Text = string.Format($"{linkAnnotArgs.URI}");
                                }
                            }
                        }

                        break;

                    default:
                        break;
                }
            }
        }
    }
}