using ComPDFKit.PDFAnnotation;
using ComPDFKit.PDFDocument;
using ComPDFKitViewer;
using ComPDFKitViewer.AnnotEvent;
using ComPDFKitViewer.PdfViewer;
using Microsoft.Win32;
using PDF_Office.CustomControl;
using PDF_Office.Helper;
using PDF_Office.Properties;
using PDF_Office.ViewModels.PropertyPanel.AnnotPanel;
using PDF_Office.Views.PropertyPanel.AnnotPanel;
using PDFSettings;
using Prism.Mvvm;
using Prism.Regions;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Forms;
using System.Windows.Input;
using System.Windows.Media;
using ContextMenu = System.Windows.Controls.ContextMenu;
using HorizontalAlignment = System.Windows.HorizontalAlignment;
using MenuItem = System.Windows.Controls.MenuItem;
using OpenFileDialog = Microsoft.Win32.OpenFileDialog;

namespace PDF_Office.ViewModels.Tools
{
    public sealed partial class AnnotToolContentViewModel : BindableBase, INavigationAware
    {
        #region 初始化

        #region 初始化数据

        //初始化注释的属性值，并存在本地缓存数据集里
        private void InitDefaultValue()
        {
            InitAnnotHighlight();
            InitAnnotUnderline();
            InitAnnotSquiggly();
            InitAnnotStrikeout();
        }

        private void InitAnnotHighlight()
        {
            DefaultAnnotProperty annotProperty = SettingHelper.GetAnnotDefaultProperty(AnnotArgsType.AnnotHighlight);
            if (annotProperty == null)
            {
                annotProperty = new DefaultAnnotProperty();
                annotProperty.AnnotToolType = AnnotArgsType.AnnotHighlight;
                annotProperty.BackgroundColor = Color.FromRgb(0xFF, 0xBB, 0x00);
                annotProperty.ForgoundColor = Color.FromRgb(0xFF, 0xBB, 0x00);
                annotProperty.Opacity = 0.5;
                SettingHelper.SetAnnotDefaultProperty(annotProperty);
            }
            else
            {
                HighLightColor = new SolidColorBrush(annotProperty.BackgroundColor);
                HighLightOpacity = annotProperty.Opacity;
            }
        }

        private void InitAnnotUnderline()
        {
            DefaultAnnotProperty annotProperty = SettingHelper.GetAnnotDefaultProperty(AnnotArgsType.AnnotUnderline);
            if (annotProperty == null)
            {
                annotProperty = new DefaultAnnotProperty();
                annotProperty.AnnotToolType = AnnotArgsType.AnnotUnderline;
                annotProperty.BackgroundColor = Color.FromRgb(0xFF, 0xBB, 0x00);
                annotProperty.ForgoundColor = Color.FromRgb(0xFF, 0xBB, 0x00);
                annotProperty.Opacity = 0.5;
                SettingHelper.SetAnnotDefaultProperty(annotProperty);
            }
            else
            {
                UnderLineColor = new SolidColorBrush(annotProperty.BackgroundColor);
                UnderLineOpacity = annotProperty.Opacity;
            }
        }

        private void InitAnnotSquiggly()
        {
            DefaultAnnotProperty annotProperty = SettingHelper.GetAnnotDefaultProperty(AnnotArgsType.AnnotSquiggly);
            if (annotProperty == null)
            {
                annotProperty = new DefaultAnnotProperty();
                annotProperty.AnnotToolType = AnnotArgsType.AnnotSquiggly;
                annotProperty.BackgroundColor = Color.FromRgb(0xFF, 0xBB, 0x00);
                annotProperty.ForgoundColor = Color.FromRgb(0xFF, 0xBB, 0x00);
                annotProperty.Opacity = 0.5;
                SettingHelper.SetAnnotDefaultProperty(annotProperty);
            }
            else
            {
                SquigglyColor = new SolidColorBrush(annotProperty.BackgroundColor);
                SquigglyOpacity = annotProperty.Opacity;
            }
        }

        private void InitAnnotStrikeout()
        {
            DefaultAnnotProperty annotProperty = SettingHelper.GetAnnotDefaultProperty(AnnotArgsType.AnnotStrikeout);
            if (annotProperty == null)
            {
                annotProperty = new DefaultAnnotProperty();
                annotProperty.AnnotToolType = AnnotArgsType.AnnotStrikeout;
                annotProperty.BackgroundColor = Color.FromRgb(0xFF, 0xBB, 0x00);
                annotProperty.ForgoundColor = Color.FromRgb(0xFF, 0xBB, 0x00);
                annotProperty.Opacity = 0.5;
                SettingHelper.SetAnnotDefaultProperty(annotProperty);
            }
            else
            {
                StrikeoutColor = new SolidColorBrush(annotProperty.BackgroundColor);
                StrikeoutOpacity = annotProperty.Opacity;
            }
        }

        //用来记录选中和创建注释的标识
        private void InitToolDict()
        {
            ToolExpandDict.Add("SnapshotEdit", AnnotArgsType.SnapshotWithEditTool);
            ToolExpandDict.Add("HighLight", AnnotArgsType.AnnotHighlight);
            ToolExpandDict.Add("UnderLine", AnnotArgsType.AnnotUnderline);
            ToolExpandDict.Add("Squiggly", AnnotArgsType.AnnotSquiggly);
            ToolExpandDict.Add("Strikeout", AnnotArgsType.AnnotStrikeout);
            ToolExpandDict.Add("Freehand", AnnotArgsType.AnnotFreehand);
            ToolExpandDict.Add("Freetext", AnnotArgsType.AnnotFreeText);
            ToolExpandDict.Add("StickyNote", AnnotArgsType.AnnotSticky);
            ToolExpandDict.Add("Rect", AnnotArgsType.AnnotSquare);
            ToolExpandDict.Add("Circle", AnnotArgsType.AnnotCircle);
            ToolExpandDict.Add("Arrow", AnnotArgsType.AnnotLine);
            ToolExpandDict.Add("Line", AnnotArgsType.AnnotLine);
            ToolExpandDict.Add("Link", AnnotArgsType.AnnotLink);
        }

        #endregion 初始化数据

        #endregion 初始化

        #region 注释工具

        //注释工具
        private void FindAnnotTypeKey(string tag, ref AnnotHandlerEventArgs annotArgs, bool isRightMenuAdd = false)
        {
            switch (tag)
            {
                case "SnapshotEdit"://内容选择
                    annotArgs = GetSnapshotEdit();
                    break;

                case "HighLight"://字体高亮
                    annotArgs = GetHighLight();
                    break;

                case "UnderLine"://下划线
                    annotArgs = GetUnderLine();
                    break;

                case "Squiggly"://波浪线
                    annotArgs = GetSquiggly();
                    break;

                case "Strikeout"://删除线
                    annotArgs = GetStrikeout();
                    break;

                case "Freehand"://手绘
                    annotArgs = GetFreehand();
                    break;

                case "Freetext"://文本
                    annotArgs = GetFreetext();
                    break;

                case "StickyNote"://便签
                    annotArgs = GetStickyNote();
                    break;

                case "Rect"://矩形
                    annotArgs = GetRect();
                    break;

                case "Circle"://圆
                    annotArgs = GetCircle();
                    break;

                case "Arrow"://箭头
                case "Line"://线
                    annotArgs = GetArrowLine(tag);
                    break;

                case "Stamp"://图章
                    annotArgs = GetStamp();
                    break;

                case "Image":
                    annotArgs = GetImage();
                    break;

                case "Signature"://签名
                    annotArgs = GetSignature();
                    PDFViewer.SetMouseMode(MouseModes.PanTool);//清空其他注释
                    break;

                case "Link"://链接
                    viewContentViewModel.IsRightMenuCreateLink = isRightMenuAdd;
                    annotArgs = GetLink();
                    break;
            }
        }

        /// <summary>
        /// 高亮注释
        /// </summary>
        /// <returns></returns>
        private AnnotHandlerEventArgs GetHighLight(TextHighlightAnnotArgs selectedhighlightArgs = null)
        {
            Dictionary<AnnotAttrib, object> annotAttribsList = new Dictionary<AnnotAttrib, object>();
            TextHighlightAnnotArgs highlightArgs = null;

            if (selectedhighlightArgs == null)
            {
                highlightArgs = new TextHighlightAnnotArgs();
                highlightArgs.Color = Color.FromRgb(0xFF, 0xBB, 0x00);
                highlightArgs.Transparency = 0.5;
                DefaultAnnotProperty annotProperty = SettingHelper.GetAnnotDefaultProperty(AnnotArgsType.AnnotHighlight);
                if (annotProperty != null)
                {
                    highlightArgs.Color = annotProperty.ForgoundColor;
                    highlightArgs.Transparency = annotProperty.Opacity;
                    highlightArgs.Content = annotProperty.NoteText;
                }
            }
            else
            {
                highlightArgs = selectedhighlightArgs;
            }

            annotAttribsList[AnnotAttrib.Color] = highlightArgs.Color;
            annotAttribsList[AnnotAttrib.Transparency] = highlightArgs.Transparency;
            annotAttribsList[AnnotAttrib.NoteText] = highlightArgs.Content;

            AddToPropertyPanel("TextAnnotProperty", "HighLight", highlightArgs, annotAttribsList);
            return highlightArgs;
        }

        /// <summary>
        /// 链接
        /// </summary>
        /// <param name="selectedLinkAnnotArgs"></param>
        /// <param name="annotAttribEvent"></param>
        /// <returns></returns>
        public AnnotHandlerEventArgs GetLink(LinkAnnotArgs selectedLinkAnnotArgs = null, AnnotAttribEvent annotAttribEvent = null)
        {
            Dictionary<AnnotAttrib, object> annotAttribsList = new Dictionary<AnnotAttrib, object>();
            LinkAnnotArgs linkArgs = new LinkAnnotArgs();
            DefaultAnnotProperty annotProperty = SettingHelper.GetAnnotDefaultProperty(AnnotArgsType.AnnotLink);
            if (annotProperty != null)
            {
            }

            if (selectedLinkAnnotArgs != null)
            {
                linkArgs = selectedLinkAnnotArgs;
            }
            else
            {
                linkArgs.URI = string.Empty;
                linkArgs.LinkType = LINK_TYPE.GOTO;
                linkArgs.DestIndex = -1;
            }

            annotAttribsList[AnnotAttrib.LinkType] = linkArgs.LinkType;
            annotAttribsList[AnnotAttrib.LinkUri] = linkArgs.URI;
            annotAttribsList[AnnotAttrib.LinkDestIndx] = linkArgs.DestIndex;
            AddToPropertyPanel("LinkAnnotProperty", "Link", linkArgs, annotAttribsList, annotAttribEvent);
            return linkArgs;
        }

        /// <summary>
        /// 下划线
        /// </summary>
        /// <param name="selectedunderlineArgs"></param>
        /// <returns></returns>
        private AnnotHandlerEventArgs GetUnderLine(TextUnderlineAnnotArgs selectedunderlineArgs = null)
        {
            Dictionary<AnnotAttrib, object> annotAttribsList = new Dictionary<AnnotAttrib, object>();
            TextUnderlineAnnotArgs underlineArgs = null;

            if (selectedunderlineArgs == null)
            {
                underlineArgs = new TextUnderlineAnnotArgs();
                underlineArgs.Color = Color.FromRgb(0x12, 0xFD, 0xFF);
                underlineArgs.Transparency = 1;
                DefaultAnnotProperty annotProperty = SettingHelper.GetAnnotDefaultProperty(AnnotArgsType.AnnotUnderline);
                if (annotProperty != null)
                {
                    underlineArgs.Color = annotProperty.ForgoundColor;
                    underlineArgs.Transparency = annotProperty.Opacity;
                    underlineArgs.Content = annotProperty.NoteText;
                }
            }
            else
            {
                underlineArgs = selectedunderlineArgs;
            }

            annotAttribsList[AnnotAttrib.Color] = underlineArgs.Color;
            annotAttribsList[AnnotAttrib.Transparency] = underlineArgs.Transparency;
            annotAttribsList[AnnotAttrib.NoteText] = underlineArgs.Content;

            AddToPropertyPanel("TextAnnotProperty", "UnderLine", underlineArgs, annotAttribsList);
            return underlineArgs;
        }

        /// <summary>
        /// 波浪线
        /// </summary>
        /// <param name="selectedsquigglyArgs"></param>
        /// <returns></returns>
        private AnnotHandlerEventArgs GetSquiggly(TextSquigglyAnnotArgs selectedsquigglyArgs = null)
        {
            Dictionary<AnnotAttrib, object> annotAttribsList = new Dictionary<AnnotAttrib, object>();
            TextSquigglyAnnotArgs squigglyArgs = null;

            if (selectedsquigglyArgs == null)
            {
                squigglyArgs = new TextSquigglyAnnotArgs();
                squigglyArgs.Color = Color.FromRgb(0xFF, 0x87, 0x16);
                squigglyArgs.Transparency = 1;
                DefaultAnnotProperty annotProperty = SettingHelper.GetAnnotDefaultProperty(AnnotArgsType.AnnotSquiggly);
                if (annotProperty != null)
                {
                    squigglyArgs.Color = annotProperty.ForgoundColor;
                    squigglyArgs.Transparency = annotProperty.Opacity;
                    squigglyArgs.Content = annotProperty.NoteText;
                }
            }
            else
            {
                squigglyArgs = selectedsquigglyArgs;
            }

            annotAttribsList[AnnotAttrib.Color] = squigglyArgs.Color;
            annotAttribsList[AnnotAttrib.Transparency] = squigglyArgs.Transparency;
            annotAttribsList[AnnotAttrib.NoteText] = squigglyArgs.Content;

            AddToPropertyPanel("TextAnnotProperty", "Squiggly", squigglyArgs, annotAttribsList);
            return squigglyArgs;
        }

        /// <summary>
        /// 删除线
        /// </summary>
        /// <param name="selectedstrikeoutArgs"></param>
        /// <returns></returns>
        private AnnotHandlerEventArgs GetStrikeout(TextStrikeoutAnnotArgs selectedstrikeoutArgs = null)
        {
            Dictionary<AnnotAttrib, object> annotAttribsList = new Dictionary<AnnotAttrib, object>();
            TextStrikeoutAnnotArgs strikeoutArgs = null;

            if (selectedstrikeoutArgs == null)
            {
                strikeoutArgs = new TextStrikeoutAnnotArgs();
                strikeoutArgs.Color = Color.FromRgb(0xFF, 0x3B, 0x30);
                strikeoutArgs.Transparency = 1;
                DefaultAnnotProperty annotProperty = SettingHelper.GetAnnotDefaultProperty(AnnotArgsType.AnnotStrikeout);
                if (annotProperty != null)
                {
                    strikeoutArgs.Color = annotProperty.ForgoundColor;
                    strikeoutArgs.Transparency = annotProperty.Opacity;
                    strikeoutArgs.Content = annotProperty.NoteText;
                }
            }
            else
            {
                strikeoutArgs = selectedstrikeoutArgs;
            }

            annotAttribsList[AnnotAttrib.Color] = strikeoutArgs.Color;
            annotAttribsList[AnnotAttrib.Transparency] = strikeoutArgs.Transparency;
            annotAttribsList[AnnotAttrib.NoteText] = strikeoutArgs.Content;

            AddToPropertyPanel("TextAnnotProperty", "Strikeout", strikeoutArgs, annotAttribsList);
            return strikeoutArgs;
        }

        /// <summary>
        /// 手绘
        /// </summary>
        /// <param name="selectedfreehandArgs"></param>
        /// <returns></returns>
        private AnnotHandlerEventArgs GetFreehand(FreehandAnnotArgs selectedfreehandArgs = null)
        {
            Dictionary<AnnotAttrib, object> annotAttribsList = new Dictionary<AnnotAttrib, object>();
            FreehandAnnotArgs freehandArgs = null;

            if (selectedfreehandArgs == null)
            {
                freehandArgs = new FreehandAnnotArgs();
                freehandArgs.InkColor = Color.FromRgb(0x38, 0xE0, 0x2E);
                freehandArgs.Transparency = 1;
                freehandArgs.LineWidth = 1;
                DefaultAnnotProperty annotProperty = SettingHelper.GetAnnotDefaultProperty(AnnotArgsType.AnnotFreehand);
                if (annotProperty != null)
                {
                    freehandArgs.InkColor = annotProperty.ForgoundColor;
                    freehandArgs.Transparency = annotProperty.Opacity;
                    freehandArgs.LineWidth = annotProperty.Thickness;
                    freehandArgs.Content = annotProperty.NoteText;
                }
            }
            else
            {
                freehandArgs = selectedfreehandArgs;
            }

            annotAttribsList[AnnotAttrib.Color] = freehandArgs.InkColor;
            annotAttribsList[AnnotAttrib.Transparency] = freehandArgs.Transparency;
            annotAttribsList[AnnotAttrib.Thickness] = freehandArgs.LineWidth;
            annotAttribsList[AnnotAttrib.NoteText] = freehandArgs.Content;

            AddToPropertyPanel("FreehandAnnotProperty", "Freehand", freehandArgs, annotAttribsList);
            return freehandArgs;
        }

        /// <summary>
        /// 文本
        /// </summary>
        /// <param name="selectedfreetextArgs"></param>
        /// <returns></returns>
        private AnnotHandlerEventArgs GetFreetext(FreeTextAnnotArgs selectedfreetextArgs = null)
        {
            Dictionary<AnnotAttrib, object> annotAttribsList = new Dictionary<AnnotAttrib, object>();
            FreeTextAnnotArgs freetextArgs = null;
            TextAlignment textAlignment;

            if (selectedfreetextArgs == null)
            {
                freetextArgs = new FreeTextAnnotArgs();
                freetextArgs.Align = TextAlignment.Left;
                freetextArgs.BgColor = Colors.Transparent;
                freetextArgs.FontFamily = new FontFamily(Settings.Default.AppProperties.Annotate.TextFontFamaily);
                freetextArgs.FontColor = Colors.Black;
                freetextArgs.FontSize = 14;
                freetextArgs.Transparency = 1;
                freetextArgs.LineColor = Colors.Black;
                freetextArgs.LineWidth = 0;
                freetextArgs.TextContent = string.Empty;

                DefaultAnnotProperty annotProperty = SettingHelper.GetAnnotDefaultProperty(AnnotArgsType.AnnotFreeText);
                if (annotProperty != null)
                {
                    freetextArgs.Align = annotProperty.TextAlign;
                    freetextArgs.BgColor = annotProperty.BackgroundColor;
                    freetextArgs.FontFamily = new FontFamily(annotProperty.FontFamily);
                    freetextArgs.FontColor = annotProperty.ForgoundColor;
                    freetextArgs.FontSize = annotProperty.FontSize;
                    freetextArgs.Transparency = annotProperty.Opacity;
                    freetextArgs.LineColor = annotProperty.BorderColor;
                    freetextArgs.LineWidth = annotProperty.Thickness;
                    freetextArgs.TextContent = annotProperty.NoteText;
                    freetextArgs.FontWeight = annotProperty.FontWeight;
                    freetextArgs.FontStyle = annotProperty.FontStyle;
                }

                int align = (int)Settings.Default.AppProperties.Annotate.TextAlign;

                if (align == 0)
                    textAlignment = TextAlignment.Left;
                else if (align == 1)
                    textAlignment = TextAlignment.Center;
                else
                    textAlignment = TextAlignment.Right;
            }
            else
            {
                freetextArgs = selectedfreetextArgs;
                textAlignment = freetextArgs.Align;
            }

            annotAttribsList[AnnotAttrib.Color] = freetextArgs.LineColor;
            annotAttribsList[AnnotAttrib.FillColor] = freetextArgs.BgColor;
            annotAttribsList[AnnotAttrib.Thickness] = freetextArgs.LineWidth;
            annotAttribsList[AnnotAttrib.Transparency] = freetextArgs.Transparency;
            annotAttribsList[AnnotAttrib.FontColor] = freetextArgs.FontColor;
            annotAttribsList[AnnotAttrib.FontSize] = freetextArgs.FontSize;
            annotAttribsList[AnnotAttrib.FontFamily] = freetextArgs.FontFamily;
            annotAttribsList[AnnotAttrib.FontStyle] = freetextArgs.FontStyle;
            annotAttribsList[AnnotAttrib.FontWeight] = freetextArgs.FontWeight;
            annotAttribsList[AnnotAttrib.TextAlign] = textAlignment;
            annotAttribsList[AnnotAttrib.NoteText] = freetextArgs.TextContent;

            AddToPropertyPanel("FreetextAnnotProperty", "Freetext", freetextArgs, annotAttribsList);
            return freetextArgs;
        }

        /// <summary>
        /// 便签
        /// </summary>
        /// <param name="selectedStickyArgs"></param>
        /// <returns></returns>
        private AnnotHandlerEventArgs GetStickyNote(StickyAnnotArgs selectedStickyArgs = null)
        {
            Dictionary<AnnotAttrib, object> annotAttribsList = new Dictionary<AnnotAttrib, object>();
            StickyAnnotArgs stickyAnnotArgs = new StickyAnnotArgs();

            if (selectedStickyArgs == null)
            {
                stickyAnnotArgs.Color = Color.FromRgb(0xFF, 0x81, 0x33);
                stickyAnnotArgs.StickyNote = string.Empty;
                stickyAnnotArgs.Transparency = 1;
                DefaultAnnotProperty annotProperty = SettingHelper.GetAnnotDefaultProperty(AnnotArgsType.AnnotSticky);
                if (annotProperty != null)
                {
                    stickyAnnotArgs.Color = annotProperty.ForgoundColor;
                    stickyAnnotArgs.StickyNote = annotProperty.NoteText;
                    stickyAnnotArgs.Transparency = annotProperty.Opacity;
                }
            }
            else
            {
                stickyAnnotArgs = selectedStickyArgs;
            }

            annotAttribsList[AnnotAttrib.Color] = stickyAnnotArgs.Color;
            annotAttribsList[AnnotAttrib.Transparency] = stickyAnnotArgs.Transparency;
            annotAttribsList[AnnotAttrib.NoteText] = stickyAnnotArgs.StickyNote;
            annotAttribsList[AnnotAttrib.StickyIcon] = stickyAnnotArgs.IconName;
            AddToPropertyPanel("StickyNoteProperty", "StickyNote", stickyAnnotArgs, annotAttribsList);
            return stickyAnnotArgs;
        }

        /// <summary>
        /// 矩形
        /// </summary>
        /// <param name="selectedsquareArgs"></param>
        /// <returns></returns>
        private AnnotHandlerEventArgs GetRect(SquareAnnotArgs selectedsquareArgs = null)
        {
            Dictionary<AnnotAttrib, object> annotAttribsList = new Dictionary<AnnotAttrib, object>();
            SquareAnnotArgs squareArgs = null;

            if (selectedsquareArgs == null)
            {
                squareArgs = new SquareAnnotArgs();

                squareArgs.LineColor = Colors.Red;
                squareArgs.BgColor = Colors.Transparent;
                squareArgs.LineWidth = 1;
                squareArgs.Transparency = 1;
                squareArgs.LineDash = DashStyles.Solid;
                squareArgs.Content = string.Empty;
                DefaultAnnotProperty annotProperty = SettingHelper.GetAnnotDefaultProperty(AnnotArgsType.AnnotSquare);

                if (annotProperty != null)
                {
                    squareArgs.LineColor = annotProperty.BorderColor;
                    squareArgs.BgColor = annotProperty.BackgroundColor;
                    if (annotProperty.DashArray == null || annotProperty.DashArray.Count == 0)
                    {
                        squareArgs.LineDash = DashStyles.Solid;
                    }
                    else
                    {
                        DashStyle dash = new DashStyle();
                        foreach (var offset in annotProperty.DashArray)
                        {
                            dash.Dashes.Add(offset);
                        }
                        squareArgs.LineDash = dash;
                    }
                    squareArgs.LineWidth = annotProperty.Thickness;
                    squareArgs.Transparency = annotProperty.Opacity;
                    squareArgs.Content = annotProperty.NoteText;
                }
            }
            else
            {
                squareArgs = selectedsquareArgs;
            }

            annotAttribsList[AnnotAttrib.Color] = squareArgs.LineColor;
            annotAttribsList[AnnotAttrib.FillColor] = squareArgs.BgColor;
            annotAttribsList[AnnotAttrib.LineStyle] = squareArgs.LineDash;
            annotAttribsList[AnnotAttrib.Thickness] = squareArgs.LineWidth;
            annotAttribsList[AnnotAttrib.Transparency] = squareArgs.Transparency;
            annotAttribsList[AnnotAttrib.NoteText] = squareArgs.Content;

            AddToPropertyPanel("SharpsAnnotProperty", "Rect", squareArgs, annotAttribsList);
            return squareArgs;
        }

        /// <summary>
        /// 圆
        /// </summary>
        /// <param name="selectedcircleAnnotArgs"></param>
        /// <returns></returns>
        private AnnotHandlerEventArgs GetCircle(CircleAnnotArgs selectedcircleAnnotArgs = null)
        {
            Dictionary<AnnotAttrib, object> annotAttribsList = new Dictionary<AnnotAttrib, object>();
            CircleAnnotArgs circleAnnotArgs = null;

            if (selectedcircleAnnotArgs == null)
            {
                circleAnnotArgs = new CircleAnnotArgs();
                circleAnnotArgs.LineColor = Colors.Red;
                circleAnnotArgs.BgColor = Colors.Transparent;
                circleAnnotArgs.LineWidth = 1;
                circleAnnotArgs.Transparency = 1;
                circleAnnotArgs.LineDash = DashStyles.Solid;
                circleAnnotArgs.Content = string.Empty;
                DefaultAnnotProperty annotProperty = SettingHelper.GetAnnotDefaultProperty(AnnotArgsType.AnnotCircle);
                if (annotProperty != null)
                {
                    circleAnnotArgs.LineColor = annotProperty.BorderColor;
                    circleAnnotArgs.BgColor = annotProperty.BackgroundColor;
                    if (annotProperty.DashArray == null || annotProperty.DashArray.Count == 0)
                    {
                        circleAnnotArgs.LineDash = DashStyles.Solid;
                    }
                    else
                    {
                        DashStyle dash = new DashStyle();
                        foreach (var offset in annotProperty.DashArray)
                        {
                            dash.Dashes.Add(offset);
                        }
                        circleAnnotArgs.LineDash = dash;
                    }
                    circleAnnotArgs.LineWidth = annotProperty.Thickness;
                    circleAnnotArgs.Transparency = annotProperty.Opacity;
                    circleAnnotArgs.Content = annotProperty.NoteText;
                }
            }
            else
            {
                circleAnnotArgs = selectedcircleAnnotArgs;
            }

            annotAttribsList[AnnotAttrib.Color] = circleAnnotArgs.LineColor;
            annotAttribsList[AnnotAttrib.FillColor] = circleAnnotArgs.BgColor;
            annotAttribsList[AnnotAttrib.LineStyle] = circleAnnotArgs.LineDash;
            annotAttribsList[AnnotAttrib.Thickness] = circleAnnotArgs.LineWidth;
            annotAttribsList[AnnotAttrib.Transparency] = circleAnnotArgs.Transparency;
            annotAttribsList[AnnotAttrib.NoteText] = circleAnnotArgs.Content;

            AddToPropertyPanel("SharpsAnnotProperty", "Circle", circleAnnotArgs, annotAttribsList);
            return circleAnnotArgs;
        }

        /// <summary>
        /// 箭头 线
        /// </summary>
        /// <param name="TagStr"></param>
        /// <param name="selectedLineAnnotArgs"></param>
        /// <returns></returns>
        private AnnotHandlerEventArgs GetArrowLine(string TagStr, LineAnnotArgs selectedLineAnnotArgs = null)
        {
            Dictionary<AnnotAttrib, object> annotAttribsList = new Dictionary<AnnotAttrib, object>();
            LineAnnotArgs lineArgs = new LineAnnotArgs();

            if (selectedLineAnnotArgs == null)
            {
                lineArgs.LineColor = Colors.Red;
                lineArgs.HeadLineType = C_LINE_TYPE.LINETYPE_NONE;
                if (TagStr == "Line")
                {
                    lineArgs.TailLineType = C_LINE_TYPE.LINETYPE_NONE;
                }
                else
                {
                    lineArgs.TailLineType = C_LINE_TYPE.LINETYPE_ARROW;
                }
                lineArgs.LineDash = DashStyles.Solid;
                lineArgs.LineWidth = 1;
                lineArgs.Transparency = 1;
                lineArgs.Content = string.Empty;
            }
            else
            {
                lineArgs = selectedLineAnnotArgs;
            }

            DefaultAnnotProperty annotProperty = null;
            if (TagStr == "Line")
            {
                annotProperty = SettingHelper.GetAnnotDefaultProperty(AnnotArgsType.AnnotLine, "Line");
                if (annotProperty != null)
                {
                    annotProperty.HeadLineType = C_LINE_TYPE.LINETYPE_NONE;
                    annotProperty.TailLineType = C_LINE_TYPE.LINETYPE_NONE;
                }
            }
            else
            {
                annotProperty = SettingHelper.GetAnnotDefaultProperty(AnnotArgsType.AnnotLine, "Arrow");
            }

            if (annotProperty != null)
            {
                lineArgs.LineColor = annotProperty.BorderColor;
                lineArgs.HeadLineType = annotProperty.HeadLineType;
                lineArgs.TailLineType = annotProperty.TailLineType;

                DashStyle dash = new DashStyle();
                foreach (var offset in annotProperty.DashArray)
                {
                    dash.Dashes.Add(offset);
                }
                lineArgs.LineDash = dash;
                lineArgs.LineWidth = annotProperty.Thickness;
                lineArgs.Transparency = annotProperty.Opacity;
                lineArgs.Content = annotProperty.NoteText;
            }
            annotAttribsList[AnnotAttrib.Color] = lineArgs.LineColor;
            annotAttribsList[AnnotAttrib.LineStart] = lineArgs.HeadLineType;
            annotAttribsList[AnnotAttrib.LineEnd] = lineArgs.TailLineType;
            annotAttribsList[AnnotAttrib.LineStyle] = lineArgs.LineDash;
            annotAttribsList[AnnotAttrib.Thickness] = lineArgs.LineWidth;
            annotAttribsList[AnnotAttrib.Transparency] = lineArgs.Transparency;
            annotAttribsList[AnnotAttrib.NoteText] = lineArgs.Content;

            AddToPropertyPanel("SharpsAnnotProperty", TagStr, lineArgs, annotAttribsList);
            return lineArgs;
        }

        /// <summary>
        /// 图章
        /// </summary>
        /// <returns></returns>
        private AnnotHandlerEventArgs GetStamp()
        {
            StampAnnotArgs stampAnnotArgs = new StampAnnotArgs();
            stampAnnotArgs.Opacity = 1;
            stampAnnotArgs.StampText = "APPROVED";
            stampAnnotArgs.Type = StampType.STANDARD_STAMP;
            Dictionary<AnnotAttrib, object> annotAttribsList = new Dictionary<AnnotAttrib, object>();
            annotAttribsList[AnnotAttrib.Transparency] = stampAnnotArgs.Opacity;
            AddToPropertyPanel("StampAnnotProperty", null, stampAnnotArgs, annotAttribsList);
            return stampAnnotArgs;
        }

        /// <summary>
        /// 签名
        /// </summary>
        /// <returns></returns>
        private AnnotHandlerEventArgs GetSignature()
        {
            AddToPropertyPanel("SignatureAnnotProperty");
            return null;
        }

        private AnnotHandlerEventArgs GetImage()
        {
            Dictionary<AnnotAttrib, object> annotAttribsList = new Dictionary<AnnotAttrib, object>();
            StampAnnotArgs stampArgs = new StampAnnotArgs();
            stampArgs.Opacity = 1;
            stampArgs.Type = StampType.IMAGE_STAMP;
            OpenFileDialog openFileDialog = new OpenFileDialog();
            openFileDialog.Filter = "Image Files(*.jpg;*.jpeg;*.png;*.bmp)|*.jpg;*.jpeg;*.png;*.bmp;";
            if (openFileDialog.ShowDialog() == true)
            {
                stampArgs.ImagePath = openFileDialog.FileName;
            }

            AddToPropertyPanel("ImageAnnotProperty", null, stampArgs, annotAttribsList);
            return stampArgs;
        }

        /// <summary>
        /// 内容选择
        /// </summary>
        /// <param name="annotBtn"></param>
        /// <returns></returns>
        private AnnotHandlerEventArgs GetSnapshotEdit()
        {
            SnapshotEditToolArgs snapshotArgs = new SnapshotEditToolArgs();
            //SnapshotEditMenuViewModel snapshotEditMenuViewModel = new SnapshotEditMenuViewModel();
            snapshotArgs.ControlPointColor = Colors.White;
            snapshotArgs.BgColor = Color.FromArgb(0x99, 0x00, 0x00, 0x00);
            snapshotArgs.LineColor = Color.FromArgb(0xFF, 0x47, 0x7E, 0xDE);

            SnapshotEditMenuViewModel.SnapToolArgs = snapshotArgs;
            SnapshotEditMenuViewModel.PDFViewer = PDFViewer;
            SnapshotEditMenuViewModel.SnapToolEvent += SnapshotEditMenuViewModel_SnapToolEvent;

            #region to do

            //SnapshotEditMenu snapMenu = new SnapshotEditMenu();
            //snapshotArgs.ToolPanel = snapMenu;
            //SnapshotEditMenuViewModel snapshotEditMenuViewModel = (SnapshotEditMenuViewModel)snapMenu.DataContext;
            //snapshotEditMenuViewModel.SnapToolArgs = snapshotArgs;
            //snapshotEditMenuViewModel.PDFViewer = PDFViewer;
            //snapshotEditMenuViewModel.ToggleBtn = annotBtn;
            //snapshotEditMenuViewModel.SnapToolEvent += SnapshotEditMenuViewModel_SnapToolEvent;
            //SnapshotEditMenuViewModel = snapshotEditMenuViewModel;

            #endregion to do

            return snapshotArgs;
        }

        /// <summary>
        /// 导航到同一个注释xaml时，需要区分某个注释；比如高亮、删除线、下划线
        /// </summary>
        /// <param name="viewContent">对应的注释面板</param>
        /// <param name="toolTag">导航到同一个注释xaml时，需要区分某个注释；比如高亮、删除线、下划线</param>
        /// <param name="annot">注释</param>
        /// <param name="annotAttribsList">更改注释属性的键值对，更改值后会自动记录undoRedo容器里</param>
        private void AddToPropertyPanel(string viewContent, string toolTag = null, AnnotHandlerEventArgs annot = null, Dictionary<AnnotAttrib, object> annotAttribsList = null, AnnotAttribEvent annotAttribEvent = null)
        {
            //if (string.IsNullOrEmpty(toolTag) == false)
            //{
            //    if (!ToolExpandDict.ContainsKey(toolTag))
            //    {
            //        ToolExpandDict[toolTag] = true;
            //    }
            //}

            if (annot != null)
                propertyPanel.annot = annot;

            if (annotAttribsList != null)
            {
                propertyPanel.AnnotEvent = AnnotAttribEvent.GetAnnotAttribEvent(annot, annotAttribsList);
                if (annot is LinkAnnotArgs && annotAttribEvent != null)
                {
                    propertyPanel.AnnotEvent = annotAttribEvent;
                }
            }

            if (string.IsNullOrEmpty(viewContent) == false)
            {
                viewContentViewModel.SelectedPrpoertyPanel(viewContent, propertyPanel);
            }
        }

        #endregion 注释工具

        #region 属性面板

        /// <summary>
        /// 展开显示属性面板
        /// </summary>
        private void ShowPropertyPanel(bool show = true)
        {
            viewContentViewModel.IsPropertyOpen = show;
        }

        #endregion 属性面板

        #region 菜单

        private ContextMenu ViewerContextMenu()
        {
            ContextMenu contextMenu = App.Current.FindResource("ViewerContextMenu") as ContextMenu;
            //contextMenu.Loaded += ContextMenu_Loaded;
            ViewerContextMenu_Loaded(contextMenu, null);
            return contextMenu;
        }

        private void ViewerContextMenu_Loaded(object sender, RoutedEventArgs e)
        {
            ContextMenu contextMenu = sender as ContextMenu;
            if (contextMenu.Items.Count > 0)
            {
                int index = PDFViewer.CurrentIndex;
                //检测是否已存在相同数据
                CPDFBookmark list = PDFViewer.Document.GetBookmarkList().FirstOrDefault(q => q.PageIndex == index);
                if (list != null)
                {
                    isAddBookMark = false;
                }
                else
                {
                    isAddBookMark = true;
                }

                foreach (var item in contextMenu.Items)
                {
                    if (item is MenuItem menuItem1)
                    {
                        //if (menuItem1.Tag.ToString() == "DisplayAnnot" || menuItem1.Tag.ToString() == "HiddenAnnot")
                        //{
                        //    SetMenuItemVisibility(menuItem1, "DisplayAnnot", "HiddenAnnot", isHiddenAnnot);
                        //}

                        switch (menuItem1.Tag.ToString())
                        {
                            case "Copy":
                                //粘贴
                                if (!ApplicationCommands.Paste.CanExecute(null, (UIElement)sender))
                                {
                                    menuItem1.IsEnabled = false;
                                    menuItem1.Opacity = 0.5;
                                }
                                else
                                {
                                    menuItem1.IsEnabled = true;
                                    menuItem1.Opacity = 1;
                                }
                                menuItem1.CommandTarget = (UIElement)sender;
                                menuItem1.Command = ApplicationCommands.Copy;
                                break;

                            case "AddAnnotation":
                                if (menuItem1.Items.Count > 0)
                                {
                                    SetAddAnnotation(menuItem1.Items);
                                }
                                break;

                            case "HiddenAnnot":
                                menuItem1.Click -= HiddenAnnot_Click;

                                menuItem1.Click += HiddenAnnot_Click;
                                SetMenuItemVisibility(menuItem1, "DisplayAnnot", "HiddenAnnot", isHiddenAnnot);

                                break;

                            case "DisplayAnnot":

                                menuItem1.Click -= DisplayAnnot_Click;
                                menuItem1.Click += DisplayAnnot_Click;
                                SetMenuItemVisibility(menuItem1, "DisplayAnnot", "HiddenAnnot", isHiddenAnnot);
                                break;

                            case "AddBookMark":
                                menuItem1.Click -= AddBookMark_Click;
                                menuItem1.Click += AddBookMark_Click;
                                SetMenuItemVisibility(menuItem1, "DelBookMark", "AddBookMark", isAddBookMark);
                                break;

                            case "DelBookMark":
                                menuItem1.Click -= DelBookMark_Click;
                                menuItem1.Click += DelBookMark_Click;
                                SetMenuItemVisibility(menuItem1, "DelBookMark", "AddBookMark", isAddBookMark);
                                break;

                            case "ToolMode":
                                if (menuItem1.Items.Count > 0)
                                {
                                    SetToolMode(menuItem1.Items);
                                }
                                break;

                            case "ReadModel":
                                SetMenuItemVisibility(menuItem1, "ReadModel", "UnReadModel", App.IsBookMode);
                                menuItem1.Click -= ReadModel_Click;
                                menuItem1.Click += ReadModel_Click;
                                break;

                            case "UnReadModel":
                                SetMenuItemVisibility(menuItem1, "ReadModel", "UnReadModel", App.IsBookMode);
                                menuItem1.Click -= UnReadModel_Click;
                                menuItem1.Click += UnReadModel_Click;
                                break;

                            case "ViewZoom":
                                if (menuItem1.Items.Count > 0)
                                {
                                    ViewZoom(menuItem1.Items);
                                }
                                break;

                            case "PageDisplay":
                                if (menuItem1.Items.Count > 0)
                                {
                                    PageDisplay(menuItem1.Items);
                                }
                                break;

                            case "Select":
                                menuItem1.Click -= Select_Click;

                                menuItem1.Click += Select_Click;
                                break;

                            case "Print":
                                menuItem1.Command = viewContentViewModel.PrintCommand;
                                break;
                        }
                    }
                }
            }
        }

        private void SetMenuItemVisibility(MenuItem menuItem1, string right, string deny, bool flag)
        {
            if (menuItem1.Tag.ToString() == right && flag)
            {
                menuItem1.Visibility = Visibility.Collapsed;
            }
            if (menuItem1.Tag.ToString() == right && flag == false)
            {
                menuItem1.Visibility = Visibility.Visible;
            }
            if (menuItem1.Tag.ToString() == deny && flag == false)
            {
                menuItem1.Visibility = Visibility.Collapsed;
            }
            if (menuItem1.Tag.ToString() == deny && flag)
            {
                menuItem1.Visibility = Visibility.Visible;
            }
        }

        private ContextMenu SelectAnnotContextMenu(object sender)
        {
            var popMenu = App.Current.FindResource("SelectAnnotContextMenu") as ContextMenu;
            if (popMenu != null && popMenu.Items.Count == 4)
            {
                //剪切
                MenuItem menuItem = popMenu.Items[0] as MenuItem;
                menuItem.CommandTarget = (UIElement)sender;
                menuItem.Command = ApplicationCommands.Cut;
                //复制
                menuItem = popMenu.Items[1] as MenuItem;
                menuItem.CommandTarget = (UIElement)sender;
                menuItem.Command = ApplicationCommands.Copy;
                //删除
                menuItem = popMenu.Items[2] as MenuItem;
                menuItem.CommandTarget = (UIElement)sender;
                menuItem.Command = ApplicationCommands.Delete;

                //笔记
                //menuItem = popMenu.Items[2] as MenuItem;
                //menuItem.CommandTarget = (UIElement)sender;
                //menuItem.Command = ApplicationCommands.no;
            }
            return popMenu;
        }

        private ContextMenu NoneSelectAnnotContextMenu(object sender, AnnotCommandArgs annotCommand)
        {
            ContextMenu popMenu = new ContextMenu();
            popMenu.FontSize = 14;
            //if (popMenu.Items.Count > 0)
            //{
            //    popMenu.Items.Clear();
            //}
            MenuItem menuItem = new MenuItem();
            menuItem = new MenuItem();
            menuItem.CommandTarget = (UIElement)sender;
            menuItem.Command = ApplicationCommands.Copy;
            popMenu.Items.Add(menuItem);

            menuItem = new MenuItem();
            menuItem.CommandTarget = (UIElement)sender;
            menuItem.Command = ApplicationCommands.Paste;
            popMenu.Items.Add(menuItem);

            //Separator separator = (Separator)App.Current.FindResource("Separator");
            Separator separator = new Separator();
            separator.Height = 1;
            separator.BorderBrush = new SolidColorBrush((Color)ColorConverter.ConvertFromString("#33000000"));
            separator.BorderThickness = new Thickness(1);
            separator.Width = popMenu.Width;
            separator.Style = (Style)App.Current.FindResource(System.Windows.Controls.ToolBar.SeparatorStyleKey);
            popMenu.Items.Add(separator);

            menuItem = new MenuItem();
            SetSelectTextOrImageMenuItem("高亮", "HighLight", annotCommand, out menuItem);
            popMenu.Items.Add(menuItem);

            menuItem = new MenuItem();
            SetSelectTextOrImageMenuItem("下划线", "UnderLine", annotCommand, out menuItem);
            popMenu.Items.Add(menuItem);

            menuItem = new MenuItem();
            SetSelectTextOrImageMenuItem("删除线", "Strikeout", annotCommand, out menuItem);
            popMenu.Items.Add(menuItem);

            menuItem = new MenuItem();
            SetSelectTextOrImageMenuItem("文本", "Freetext", annotCommand, out menuItem);
            popMenu.Items.Add(menuItem);

            menuItem = new MenuItem();
            SetSelectTextOrImageMenuItem("便签", "StickyNote", annotCommand, out menuItem);
            popMenu.Items.Add(menuItem);

            menuItem = new MenuItem();
            SetSelectTextOrImageMenuItem("矩形", "Rect", annotCommand, out menuItem);
            popMenu.Items.Add(menuItem);

            menuItem = new MenuItem();
            SetSelectTextOrImageMenuItem("添加链接", "Link", annotCommand, out menuItem);
            popMenu.Items.Add(menuItem);

            //menuItem.CommandParameter = new object[] { this, annotCommand };
            //menuItem.Command = viewContentViewModel.CreateLinkCommand;
            //menuItem.Click -= AddLink_Click;
            //menuItem.Click += AddLink_Click;
            //popMenu.Items.Add(menuItem);
            return popMenu;
        }

        private void AnnotToolMenu_Click(object sender, RoutedEventArgs e)
        {
            MenuItem clickMenu = sender as MenuItem;
            if (clickMenu != null && clickMenu.CommandParameter is AnnotCommandArgs)
            {
                AnnotCommandArgs annotCommand = clickMenu.CommandParameter as AnnotCommandArgs;
                //AnnotHandlerEventArgs annotHandlerEvent = null;
                //FindAnnotTypeKey(clickMenu.Tag.ToString(), ref annotHandlerEvent, true);

                switch (clickMenu.Tag.ToString())
                {
                    case "SnapshotEdit"://内容选择
                        break;

                    case "HighLight"://字体高亮
                        TextHighlightAnnotArgs highlightArgs = (TextHighlightAnnotArgs)GetHighLight();
                        highlightArgs.ClientRect = annotCommand.TextRect;
                        highlightArgs.Content = annotCommand.Text;
                        bool flag = PDFViewer.CreatePageAnnot(annotCommand.PageIndex, highlightArgs);
                        break;

                    case "UnderLine"://下划线

                        break;

                    case "Squiggly"://波浪线
                        break;

                    case "Strikeout"://删除线
                        break;

                    case "Freehand"://手绘
                        break;

                    case "Freetext"://文本
                        FreeTextAnnotArgs textArgs = new FreeTextAnnotArgs();
                        textArgs.ClientRect = annotCommand.TextRect;
                        textArgs.Transparency = 1;
                        textArgs.BgColor = Colors.Transparent;
                        textArgs.LineColor = Colors.Red;
                        textArgs.LineWidth = 2;
                        //textArgs.TextContent = annotCommand.Text;
                        PDFViewer.CreatePageAnnot(annotCommand.PageIndex, textArgs);
                        break;

                    case "StickyNote"://便签
                        StickyAnnotArgs stickyAnnotArgs = (StickyAnnotArgs)GetStickyNote();

                        //stickyAnnotArgs.StickyNote = annotCommand.Text;
                        //stickyAnnotArgs.Color = annotProperty.ForgoundColor;
                        //stickyAnnotArgs.StickyNote = annotProperty.NoteText;
                        //stickyAnnotArgs.Transparency = annotProperty.Opacity;

                        stickyAnnotArgs.ClientRect = annotCommand.TextRect;
                        PDFViewer.CreatePageAnnot(annotCommand.PageIndex, stickyAnnotArgs);
                        break;

                    case "Rect"://矩形
                        SquareAnnotArgs squareAnnotArgs = (SquareAnnotArgs)GetRect();
                        squareAnnotArgs.ClientRect = annotCommand.TextRect;
                        PDFViewer.CreatePageAnnot(annotCommand.PageIndex, squareAnnotArgs);
                        break;

                    case "Circle"://圆
                        break;

                    case "Arrow"://箭头
                    case "Line"://线
                        break;

                    case "Stamp"://图章
                        break;

                    case "Image":
                        break;

                    case "Signature"://签名
                        break;

                    case "Link"://链接
                        LinkAnnotArgs linkArgs = new LinkAnnotArgs();
                        linkArgs.ClientRect = annotCommand.TextRect;
                        linkArgs.URI = string.Empty;
                        linkArgs.LinkType = LINK_TYPE.GOTO;
                        linkArgs.DestIndex = annotCommand.PageIndex;
                        PDFViewer.CreatePageAnnot(annotCommand.PageIndex, linkArgs);
                        BtnLinkIsChecked = true;
                        AnnotHandlerEventArgs annotArgs = GetLink(linkArgs);
                        PDFViewer.SetMouseMode(MouseModes.AnnotCreate);
                        PDFViewer.SetToolParam(annotArgs);
                        viewContentViewModel.IsPropertyOpen = true;
                        break;
                }
            }
        }

        private void SetSelectTextOrImageMenuItem(string header, string tag, AnnotCommandArgs annotCommand, out MenuItem menuItem)
        {
            menuItem = new MenuItem();
            menuItem.Header = header;
            menuItem.Tag = tag;
            menuItem.Click -= AnnotToolMenu_Click;
            menuItem.Click += AnnotToolMenu_Click;
            menuItem.CommandParameter = annotCommand;
        }

        #endregion 菜单
    }
}