PDFOffice_Windows_exe/PDF Office/ViewModels/Tools/AnnotToolContentViewModel.Command.cs

using ComPDFKit.PDFAnnotation;
using ComPDFKit.PDFDocument.Action;
using ComPDFKit.PDFDocument;
using ComPDFKitViewer;
using ComPDFKitViewer.AnnotEvent;
using ComPDFKitViewer.PdfViewer;
using PDF_Office.CustomControl;
using PDF_Office.EventAggregators;
using PDF_Office.Helper;
using PDF_Office.Properties;
using PDF_Office.ViewModels.BOTA;
using PDF_Office.Views.BOTA;
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.Controls.Primitives;
using System.Windows.Media;
using System.Diagnostics;
using PDF_Office.Model.AnnotPanel;
using System.Windows.Input;

namespace PDF_Office.ViewModels.Tools
{
    public sealed partial class AnnotToolContentViewModel : BindableBase, INavigationAware
    {

        #region 事件绑定和解绑
        private void BindingEvent()
        {
            //属性面板与注释工具栏绑定：属性面板的属性变化，会同步注释工具栏的属性值
            //比如在属性面板里更改注释颜色，会同时更新工具栏对应的工具颜色
            propertyPanel.DataChanged -= AnnotPropertyPanel_DataChanged;
            propertyPanel.DataChanged += AnnotPropertyPanel_DataChanged;
            propertyPanel.DefaultStored -= AnnotProperty_DefaultStored;
            propertyPanel.DefaultStored += AnnotProperty_DefaultStored;
            propertyPanel.AnnotTypeChanged -= AnnotPropertyPanel_AnnotTypeChanged;
            propertyPanel.AnnotTypeChanged += AnnotPropertyPanel_AnnotTypeChanged;
            //快捷键
            KeyEventsHelper.KeyDown -= ShortCut_KeyDown;
            KeyEventsHelper.KeyDown += ShortCut_KeyDown;
        }

        private void UnBindingEvent()
        {
            propertyPanel.DataChanged -= AnnotPropertyPanel_DataChanged;
            propertyPanel.DefaultStored -= AnnotProperty_DefaultStored;
            propertyPanel.AnnotTypeChanged -= AnnotPropertyPanel_AnnotTypeChanged;
            //快捷盘解绑
            KeyEventsHelper.KeyDown -= ShortCut_KeyDown;
        }

        private void BindingPDFViewerHandler()
        {
            //来自PDFViewer的响应事件
            if (PDFViewer != null)
            {
                PDFViewer.AnnotEditHandler -= PDFViewer_AnnotEditHandler;
                PDFViewer.AnnotEditHandler += PDFViewer_AnnotEditHandler;

                PDFViewer.AnnotActiveHandler -= PDFViewer_AnnotActiveHandler;
                PDFViewer.AnnotActiveHandler += PDFViewer_AnnotActiveHandler;

                PDFViewer.AnnotCommandHandler -= PDFViewer_AnnotCommandHandler;
                PDFViewer.AnnotCommandHandler += PDFViewer_AnnotCommandHandler;

                PDFViewer.WidgetClickHander -= PDFViewer_WidgetClickHander;
                PDFViewer.WidgetClickHander += PDFViewer_WidgetClickHander;

                PDFViewer.SnapshotCommandHandler -= PDFViewer_SnapshotCommandHandler;
                PDFViewer.SnapshotCommandHandler += PDFViewer_SnapshotCommandHandler;

                PDFViewer.PDFActionHandler -= PDFViewer_PDFActionHandler;
                PDFViewer.PDFActionHandler += PDFViewer_PDFActionHandler;
                PDFViewer.AnnotHoverHandler -= PDFViewer_AnnotHoverHandler;
                PDFViewer.AnnotHoverHandler += PDFViewer_AnnotHoverHandler;

                PDFViewer.PreviewMouseLeftButtonDown -= PDFViewer_PreviewMouseLeftButtonDown;
                PDFViewer.PreviewMouseLeftButtonDown += PDFViewer_PreviewMouseLeftButtonDown;
            }
        }

        private void PDFViewer_PDFActionHandler(object sender, ComPDFKit.PDFDocument.Action.CPDFAction action)
        {
            if (action == null)
            {
                return;
            }
            switch (action.ActionType)
            {
                case C_ACTION_TYPE.ACTION_TYPE_GOTO:
                    if (PDFViewer != null)
                    {
                        CPDFGoToAction gotoAction = action as CPDFGoToAction;
                        CPDFDestination dest = gotoAction.GetDestination(PDFViewer.Document);
                        if (dest != null)
                        {
                            PDFViewer.GoToPage(dest.PageIndex, new System.Windows.Point(0, 0));
                        }
                    }
                    break;

                case C_ACTION_TYPE.ACTION_TYPE_URI:
                    {
                        CPDFUriAction uriAction = action as CPDFUriAction;
                        string uri = uriAction.GetUri();
                        try
                        {
                            if (!string.IsNullOrEmpty(uri))
                            {
                                Process.Start(uri);
                            }
                        }
                        catch (Exception ex)
                        {
                        }
                    }
                    break;
            }
        }

        private void UnBindingPDFViewerHandler()
        {
            if (PDFViewer != null)
            {
                PDFViewer.AnnotEditHandler -= PDFViewer_AnnotEditHandler;
                PDFViewer.AnnotActiveHandler -= PDFViewer_AnnotActiveHandler;
                PDFViewer.AnnotCommandHandler -= PDFViewer_AnnotCommandHandler;
                PDFViewer.WidgetClickHander -= PDFViewer_WidgetClickHander;
                PDFViewer.SnapshotCommandHandler -= PDFViewer_SnapshotCommandHandler;
                PDFViewer.PDFActionHandler -= PDFViewer_PDFActionHandler;
                PDFViewer.AnnotHoverHandler -= PDFViewer_AnnotHoverHandler;

                PDFViewer.PreviewMouseLeftButtonDown -= PDFViewer_PreviewMouseLeftButtonDown;
            }
        }

        #endregion 事件绑定和解绑

        #region 与触发事件调用相关的函数

        //鼠标左键双击注释
        private void PDFViewer_PreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
        {
            if (e.ClickCount == 2)
            {
                if (CurrentSelectedAnnot != null)
                {
                    var type = CurrentSelectedAnnot.EventType;
                    if (type != AnnotArgsType.AnnotSticky && type != AnnotArgsType.AnnotFreeText &&
                        type != AnnotArgsType.AnnotHighlight && type != AnnotArgsType.AnnotUnderline && type != AnnotArgsType.AnnotStrikeout)
                  
                        PopAnnotNoteText(CurrentSelectedAnnot);
                }
                   
            }
        }

        //是否为形状注释
        private bool isShapAnnot(AnnotHandlerEventArgs annot)
        {
            if (annot.EventType == AnnotArgsType.AnnotCircle ||
            annot.EventType == AnnotArgsType.AnnotSquare ||
            annot.EventType == AnnotArgsType.AnnotLine
            )
            {
                return true;
            }
            else
            {
                return false;
            }
        }

        //是否为高亮注释
        private bool isHightAnnot(AnnotHandlerEventArgs annot)
        {
            if (annot.EventType == AnnotArgsType.AnnotUnderline ||
            annot.EventType == AnnotArgsType.AnnotSquiggly ||
            annot.EventType == AnnotArgsType.AnnotHighlight ||
            annot.EventType == AnnotArgsType.AnnotStrikeout
            )
            {
                return true;
            }
            else
            {
                return false;
            }
        }

        private void GetSelectedAnnots(AnnotAttribEvent e)
        {
            var annot = e.AnnotItemsList[0];
            switch (annot.EventType)
            {
                case AnnotArgsType.AnnotHighlight:
                    GetHighLight(e.AnnotItemsList);
                    break;

                case AnnotArgsType.AnnotUnderline:
                    GetUnderLine(e.AnnotItemsList);
                    break;

                case AnnotArgsType.AnnotStrikeout:
                    GetStrikeout(e.AnnotItemsList);
                    break;

                case AnnotArgsType.AnnotSquiggly:
                    GetSquiggly(e.AnnotItemsList);
                    break;

                case AnnotArgsType.AnnotFreehand:
                    GetFreehand(e.AnnotItemsList);
                    break;

                case AnnotArgsType.AnnotFreeText:
                    GetFreetext(e.AnnotItemsList);
                    break;

                case AnnotArgsType.AnnotSquare:
                    GetRect(e.AnnotItemsList);
                    break;

                case AnnotArgsType.AnnotCircle:
                    GetCircle(e.AnnotItemsList);
                    break;

                case AnnotArgsType.AnnotLine:
                    bool isLine = true;
                    if (e.Attribs.ContainsKey(AnnotAttrib.LineStart))
                    {
                        if ((C_LINE_TYPE)e.Attribs[AnnotAttrib.LineStart] != C_LINE_TYPE.LINETYPE_UNKNOWN && (C_LINE_TYPE)e.Attribs[AnnotAttrib.LineStart] != C_LINE_TYPE.LINETYPE_NONE)
                        {
                            isLine = false;
                        }
                    }
                    if (e.Attribs.ContainsKey(AnnotAttrib.LineEnd))
                    {
                        if ((C_LINE_TYPE)e.Attribs[AnnotAttrib.LineEnd] != C_LINE_TYPE.LINETYPE_UNKNOWN && (C_LINE_TYPE)e.Attribs[AnnotAttrib.LineEnd] != C_LINE_TYPE.LINETYPE_NONE)
                        {
                            isLine = false;
                        }
                    }

                    if (isLine)
                        GetArrowLine("Line", e.AnnotItemsList);
                    else
                        GetArrowLine("Arrow", e.AnnotItemsList);

                    break;

                case AnnotArgsType.AnnotLink:
                    //viewContentViewModel.IsCreateLink = false;
                    //e.IsAnnotCreateReset= true;
                    if (btnLinkIsChecked == false)
                    {
                        propertyPanel.IsAddLink = false;
                    }

                    GetLink(e.AnnotItemsList, e);
                    break;

                case AnnotArgsType.AnnotSticky:
                    GetStickyNote(e.AnnotItemsList);
                    customStickyPopup.GetCurrentAnnot = e.AnnotItemsList[0] as StickyAnnotArgs;
                    customStickyPopup.GetPDFViewer = PDFViewer;
                    break;

                case AnnotArgsType.AnnotStamp:
                    GetStamp();
                    break;
            }
        }

        #endregion 与触发事件调用相关的函数

        #region PDFViewer事件
        private AnnotHandlerEventArgs CurrentSelectedAnnot = null;
        //选中和非选中注释
        private void PDFViewer_AnnotActiveHandler(object sender, AnnotAttribEvent e)
        {
            if (e != null)
            {
                var annot = e.AnnotItemsList[0];
                if (annot != null)
                {
                    if (e.AnnotItemsList.Count == 1)
                    {
                        //IsAnnotCreateReset：是否为创建注释的状态
                        if (e.IsAnnotCreateReset == false)
                        {
                            GetSelectedAnnots(e);
                            CurrentSelectedAnnot = annot;
                        }
                        else
                        {
                            switch (annot.EventType)
                            {
                                case AnnotArgsType.AnnotLink:
                                    //viewContentViewModel.IsCreateLink = false;
                                    GetLink(e.AnnotItemsList, e);
                                    PDFViewer.SetToolParam(annot);
                                    break;
                            }

                            //TODO: 修改注释后，会作用到之后添加的注释中。因此先把此逻辑“创建注释后，会自动回到默认值”注释掉
                            //注释代码原因：设计已经重新调整逻辑：所有注释创建后，编辑属性，所有属性会作用于下次创建的注释中。
                            //if (annot.EventType != AnnotArgsType.AnnotStrikeout &&
                            //annot.EventType != AnnotArgsType.AnnotUnderline &&
                            //annot.EventType != AnnotArgsType.AnnotHighlight &&
                            //annot.EventType != AnnotArgsType.AnnotSquiggly &&
                            //annot.EventType != AnnotArgsType.AnnotLink &&
                            //annot.EventType != AnnotArgsType.AnnotFreehand &&
                            //annot.EventType != AnnotArgsType.AnnotSticky &&
                            //)
                            //{
                            //    if (ToolExpandDict.ContainsValue(e.AnnotItemsList[0].EventType))
                            //    {
                            //        var strLineAnnotTag = "";
                            //        if (e.AnnotItemsList[0] is LineAnnotArgs)
                            //        {
                            //            var lineAnnot = e.AnnotItemsList[0] as LineAnnotArgs;
                            //            if (lineAnnot.HeadLineType == C_LINE_TYPE.LINETYPE_NONE && lineAnnot.TailLineType == C_LINE_TYPE.LINETYPE_NONE)
                            //            {
                            //                strLineAnnotTag = "Line";
                            //            }
                            //            else
                            //            {
                            //                strLineAnnotTag = "Arrow";
                            //            }
                            //        }

                            //        foreach (var item in ToolExpandDict)
                            //        {
                            //            if (item.Value == e.AnnotItemsList[0].EventType)
                            //            {
                            //                annot = null;//新建注释时，回到默认值
                            //                if (string.IsNullOrEmpty(strLineAnnotTag))
                            //                {
                            //                    FindAnnotTypeKey(item.Key, ref annot);
                            //                    break;
                            //                }
                            //                else
                            //                {
                            //                    if (strLineAnnotTag == item.Key)
                            //                    {
                            //                        FindAnnotTypeKey(item.Key, ref annot);
                            //                        break;
                            //                    }
                            //                }
                            //            }
                            //        }

                            //        PDFViewer.SetToolParam(annot);
                            //    }
                            //}

                            #region TO DO

                            //设计重新调整，阅读页空白处，右键菜单，添加链接需要显示，其他和pro mac一样的效果，不显示属性栏
                            //if (isRightMenuAddAnnot && annot.EventType!=AnnotArgsType.AnnotLink)
                            //{
                            //    ShowPropertyPanel(false);
                            //}
                            //else
                            //{
                            //    ShowPropertyPanel();
                            //}

                            #endregion TO DO
                        }
                    }
                    else
                    {
                        bool isDifferentAnnotTyle = false;
                        var lastAnnot = annot;
                        foreach (var item in e.AnnotItemsList)
                        {
                            if (lastAnnot.EventType != item.EventType)
                            {
                                if ((isShapAnnot(annot) == true && isShapAnnot(item) == true) || (isHightAnnot(annot) == true && isHightAnnot(item) == true))
                                {
                                    lastAnnot = item;
                                    continue;
                                }

                                lastAnnot = item;
                                isDifferentAnnotTyle = true;
                                break;
                            }
                        }

                        if (isDifferentAnnotTyle)
                            viewContentViewModel.SelectedPrpoertyPanel("PropertyPanelContent", null);
                        else
                            GetSelectedAnnots(e);
                    }
                }

                //注释列表同步选中
                var list = e.GetPageAnnotsIndex();
                bool isTabItemAnnotation = IsBOTATabItemShow(out BOTAContentViewModel bOTAContentViewModel, out BOTAContent bOTAContent, "TabItemAnnotation");

                if (viewContentViewModel.OpenBOTA == true && isTabItemAnnotation == true && bOTAContent.TabItemAnnotation.IsSelected == true && list != null && list.Count > 0)
                {
                    if (list.Keys.Count == 0)
                    {
                        return;
                    }
                    var pageindex = new List<int>(list.Keys);
                    List<int> annotes = new List<int>();
                    list.TryGetValue(pageindex[0], out annotes);
                    int annoteindex = annotes[0];
                    AnnotationContentViewModel viewModel = GetAnnotationContentViewModel(bOTAContentViewModel, out AnnotationContent annotation);

                    if (viewModel != null)
                    {
                        viewModel.ScrollToAnnot(pageindex[0], annoteindex, annotation.AnnotationList);
                    }
                }
            }
            else
            {
                if (BtnLinkIsChecked == false)
                {
                    if (PDFViewer.MouseMode != MouseModes.AnnotCreate)
                    {
                        if (PDFViewer.MouseMode == MouseModes.PanTool && propertyPanel.IsAddLink == false && propertyPanel.IsLocationLink == false)
                        {
                            viewContentViewModel.SelectedPrpoertyPanel("PropertyPanelContent", null);
                        }
                    }
                }
            }
        }

        //在注释工具的状态下，右键菜单
        private void PDFViewer_AnnotCommandHandler(object sender, AnnotCommandArgs e)
        {
            if (e.AnnotEventArgsList == null || (PDFViewer != null && PDFViewer.MouseMode == MouseModes.FormEditTool))
                return;

            switch (e.CommandType)
            {
                case CommandType.Context:
                    if (e.AnnotEventArgsList.Count > 0)
                    {
                        if (App.mainWindowViewModel.SelectedItem.IsInReadctonMode && e.AnnotEventArgsList[0].EventType == AnnotArgsType.AnnotRedaction)
                        {
                            //绑定标记密文处右键菜单
                            events.GetEvent<RedactionCommandEvent>().Publish(new RedactionCommandEventArgs() { UniCode = App.mainWindowViewModel.SelectedItem.Unicode, Sender = sender, args = e });
                        }
                        else
                        {
                            if (e.AnnotEventArgsList.Count == 1)
                            {
                                var selectedAnnot = e.AnnotEventArgsList[0];
                                PopMenuCheckedLineDash(selectedAnnot);
                                PopMenuCheckedFontFamily(selectedAnnot);
                                PopMenuCheckedTextAglin(selectedAnnot);

                                switch (selectedAnnot.EventType)
                                {
                                    case AnnotArgsType.AnnotHighlight:
                                    case AnnotArgsType.AnnotUnderline:
                                    case AnnotArgsType.AnnotStrikeout:
                                    case AnnotArgsType.AnnotSquiggly:
                                        if (selectedAnnot.EventType == AnnotArgsType.AnnotHighlight)
                                        {
                                            colorContent.ItemSource = AnnotColorList.GetColorList(ColorSelectorType.Highlight);
                                        }
                                        else
                                        {
                                            colorContent.ItemSource = AnnotColorList.GetColorList(ColorSelectorType.Border);
                                        }

                                        e.PopupMenu = HightAnnotPopMenu.OpenMenu(selectedAnnot, sender);
                                        break;

                                    case AnnotArgsType.AnnotFreehand:
                                        e.PopupMenu = FreeHandAnnotPopMenu.OpenMenu(selectedAnnot, sender);
                                        break;

                                    case AnnotArgsType.AnnotFreeText:
                                        e.PopupMenu = FreeTextAnnotPopMenu.OpenMenu(selectedAnnot, sender);
                                        break;

                                    case AnnotArgsType.AnnotSticky:
                                        e.PopupMenu = StrickNoteAnnotPopMenu.OpenMenu(selectedAnnot, sender);
                                        break;

                                    case AnnotArgsType.AnnotSquare:
                                    case AnnotArgsType.AnnotCircle:
                                        ShapeAnnotPopMenu.SetVisual("ShapeDirect", false);
                                        ShapeAnnotPopMenu.SetVisual("ShapeFillColor", true);
                                        e.PopupMenu = ShapeAnnotPopMenu.OpenMenu(selectedAnnot, sender);
                                        break;

                                    case AnnotArgsType.AnnotLine:
                                        ShapeAnnotPopMenu.SetVisual("ShapeFillColor", false);
                                        ShapeAnnotPopMenu.SetVisual("ShapeDirect", true);
                                        e.PopupMenu = ShapeAnnotPopMenu.OpenMenu(selectedAnnot, sender);
                                        break;

                                    case AnnotArgsType.AnnotLink:
                                        e.PopupMenu = LinkAnnotPopMenu.OpenMenu(selectedAnnot, sender);
                                        break;

                                    case AnnotArgsType.AnnotStamp:
                                        e.PopupMenu = StampAnnotPopMenu.OpenMenu(selectedAnnot, sender);
                                        break;
                                }
                            }
                            else
                            {
                                bool isHigh = true;//是否为高亮
                                foreach (var item in e.AnnotEventArgsList)
                                {
                                    if (isHightAnnot(item) == false)
                                    {
                                        isHigh = false;
                                        break;
                                    }
                                }

                                MultiAnnotPopMenu.SetVisual("MultiCopy", !isHigh);
                                MultiAnnotPopMenu.SetVisual("MultiCut", !isHigh);
                                e.PopupMenu = MultiAnnotPopMenu.OpenMenu(e.AnnotEventArgsList, sender);//SelectMultiAnnotMenu(e.AnnotEventArgsList, isHigh);
                            }
                        }
                        if (e.PopupMenu != null)
                        {
                            e.Handle = true;
                        }
                    }
                    else
                    {
                        if (e.PressOnSelectedText || e.CommandTarget == TargetType.ImageSelection)
                        {
                            e.PopupMenu = SelectedTextOrImageContextMenu(sender, e);
                            if (e.PopupMenu != null)
                            {
                                e.Handle = true;
                            }
                        }
                        else
                        {
                            e.PopupMenu = ViewerContextMenu(sender);
                            if (e.PopupMenu != null)
                            {
                                e.Handle = true;
                            }
                        }
                    }

                    break;
            }
        }

        //右键菜单，选中字体样式按钮状态
        private void PopMenuCheckedFontFamily(AnnotHandlerEventArgs annot)
        {
            if (annot != null)
            {
                if (annot.EventType == AnnotArgsType.AnnotFreeText)
                {
                    var freeText = annot as FreeTextAnnotArgs;
                    FreeTextAnnotPopMenu.SetIsChecked(freeText.FontFamily.ToString(), true);
                }
            }
        }

        //右键菜单，选中文本内容对齐按钮状态
        private void PopMenuCheckedTextAglin(AnnotHandlerEventArgs annot)
        {
            if (annot != null)
            {
                if (annot.EventType == AnnotArgsType.AnnotFreeText)
                {
                    var freeText = annot as FreeTextAnnotArgs;
                    switch (freeText.Align)
                    {
                        case TextAlignment.Left:
                            FreeTextAnnotPopMenu.SetIsChecked("FreeTextAglinLeft", true);
                            break;

                        case TextAlignment.Center:
                            FreeTextAnnotPopMenu.SetIsChecked("FreeTextAglinCenter", true);
                            break;

                        case TextAlignment.Right:
                            FreeTextAnnotPopMenu.SetIsChecked("FreeTextAglinRight", true);
                            break;

                        case TextAlignment.Justify:
                            FreeTextAnnotPopMenu.SetIsChecked("FreeTextAglinJustify", true);
                            break;

                        default:
                            FreeTextAnnotPopMenu.SetIsChecked("FreeTextAglinLeft", false);
                            FreeTextAnnotPopMenu.SetIsChecked("FreeTextAglinCenter", false);
                            FreeTextAnnotPopMenu.SetIsChecked("FreeTextAglinRight", false);
                            FreeTextAnnotPopMenu.SetIsChecked("FreeTextAglinJustify", false);
                            break;
                    }
                }
            }
        }

        //右键菜单，选中虚实线按钮状态
        private void PopMenuCheckedLineDash(AnnotHandlerEventArgs annot)
        {
            if (annot != null)
            {
                bool isSolidLineDash = true;
                if (annot.EventType == AnnotArgsType.AnnotFreehand)
                {
                    var freeHand = annot as FreehandAnnotArgs;
                    isSolidLineDash = AnnotPropertyPanel.IsSolidStyle(freeHand.LineDash);
                    FreeHandAnnotPopMenu.SetIsChecked(isSolidLineDash ? "FreeHandSolid" : "FreeHandDash", true);
                }
                else if (annot.EventType == AnnotArgsType.AnnotSquare)
                {
                    var square = annot as SquareAnnotArgs;
                    isSolidLineDash = AnnotPropertyPanel.IsSolidStyle(square.LineDash);
                    ShapeAnnotPopMenu.SetIsChecked(isSolidLineDash ? "ShapeSolid" : "ShapeDash", true);
                }
                else if (annot.EventType == AnnotArgsType.AnnotCircle)
                {
                    var circle = annot as CircleAnnotArgs;
                    isSolidLineDash = AnnotPropertyPanel.IsSolidStyle(circle.LineDash);
                    ShapeAnnotPopMenu.SetIsChecked(isSolidLineDash ? "ShapeSolid" : "ShapeDash", true);
                }
                else if (annot.EventType == AnnotArgsType.AnnotLine)
                {
                    var line = annot as LineAnnotArgs;
                    isSolidLineDash = AnnotPropertyPanel.IsSolidStyle(line.LineDash);
                    ShapeAnnotPopMenu.SetIsChecked(isSolidLineDash ? "ShapeSolid" : "ShapeDash", true);
                }
            }
        }

        /// <summary>
        /// 内容选择工具
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void PDFViewer_SnapshotCommandHandler(object sender, SnapshotCommandArgs e)
        {
            SnapshotEditToolArgs snapToolArgs = (SnapshotEditToolArgs)PDFViewer.ToolManager.CurrentAnnotArgs;

            SnapshotEditMenuViewModel.SnapToolArgs = snapToolArgs;
            SnapshotEditMenuViewModel.PDFViewer = PDFViewer;
            SnapshotEditMenuViewModel.SnapToolEvent -= SnapshotEditMenuViewModel_SnapToolEvent; ;
            SnapshotEditMenuViewModel.SnapToolEvent += SnapshotEditMenuViewModel_SnapToolEvent;
            var popMenu = App.Current.FindResource("SnapshotContextMenu") as ContextMenu;

            if (e.HitSnapshotTool && e.SnapshotRect.Width > 0 && e.SnapshotRect.Height > 0)
            {
                e.PopupMenu = popMenu;
                e.Handle = true;

                if (popMenu != null && popMenu.Items.Count == 5)
                {
                    //复制
                    MenuItem menuItem = popMenu.Items[0] as MenuItem;
                    menuItem.CommandTarget = PDFViewer;
                    menuItem.Command = SnapshotEditMenuViewModel.SnapCopyCommand;
                    //导出
                    menuItem = popMenu.Items[1] as MenuItem;
                    menuItem.CommandTarget = PDFViewer;
                    if (menuItem.Items.Count == 3)
                    {
                        MenuItem menuItem1 = menuItem.Items[0] as MenuItem;
                        menuItem1.CommandTarget = PDFViewer;
                        menuItem1.Command = SnapshotEditMenuViewModel.ExportPNGCommand;

                        menuItem1 = menuItem.Items[1] as MenuItem;
                        menuItem1.CommandTarget = PDFViewer;
                        menuItem1.Command = SnapshotEditMenuViewModel.ExportJPGCommand;

                        menuItem1 = menuItem.Items[2] as MenuItem;
                        menuItem1.CommandTarget = PDFViewer;
                        menuItem1.Command = SnapshotEditMenuViewModel.ExportPDFCommand;
                    }

                    //裁剪
                    menuItem = popMenu.Items[2] as MenuItem;
                    menuItem.CommandTarget = PDFViewer;
                    menuItem.Command = SnapshotEditMenuViewModel.CroppingCommand;

                    //缩放至所选区域
                    menuItem = popMenu.Items[3] as MenuItem;
                    menuItem.CommandTarget = PDFViewer;
                    menuItem.Visibility = Visibility.Collapsed;
                    //menuItem.Command = snapshotEditMenuViewModel.CroppingCommand;

                    //打印
                    menuItem = popMenu.Items[4] as MenuItem;
                    menuItem.CommandTarget = PDFViewer;
                    menuItem.Command = SnapshotEditMenuViewModel.PrintCommand;

                }
            }
        }

        private void SnapshotEditMenuViewModel_SnapToolEvent(object sender, KeyValuePair<string, object> e)
        {
            switch (e.Key)
            {
                case "CloseSnap":
                    {
                        #region to do

                        //var item = PDFViewerTab.SelectedItem as TabItem;
                        //if (item == null)
                        //{
                        //    ClearSelectedToolPanel();
                        //    return;
                        //}
                        //Grid grid = item.Content as Grid;
                        //if (grid == null || grid.Children.Count == 0)
                        //{
                        //    ClearSelectedToolPanel();
                        //    return;
                        //}
                        //PDFViewerCtrl pdfViewer = grid.Children[0] as PDFViewerCtrl;
                        //if (pdfViewer == null)
                        //{
                        //    ClearSelectedToolPanel();
                        //    return;
                        //}

                        #endregion to do

                        switch (PDFViewer.MouseMode)
                        {
                            case MouseModes.SelectTextTool:
                                break;

                            default:
                                BtnSelecttoolIsChecked = false;
                                BtnHandIsChecked = true;
                                PDFViewer.EnableZoom(true);
                                PDFViewer.EnableScroll(true);

                                break;
                        }
                    }
                    break;

                default:
                    break;
            }
        }

        private void PDFViewer_AnnotEditHandler(object sender, List<AnnotEditEvent> e)
        {
            if (e != null && e.Count > 0)
            {
                for (int i = 0; i < e.Count; i++)
                {
                    AnnotEditEvent editEvent = e[i];
                    switch (editEvent.EditAction)
                    {
                        case ActionType.Add:

                            bool isTabItemAnnotation = IsBOTATabItemShow(out BOTAContentViewModel bOTAContentViewModel, out BOTAContent bOTAContent, "TabItemAnnotation");

                            if (viewContentViewModel.OpenBOTA == true && isTabItemAnnotation == true)
                            {
                                AnnotationContentViewModel viewModel = GetAnnotationContentViewModel(bOTAContentViewModel, out AnnotationContent annotation);

                                if (viewModel != null)
                                {
                                    int pageindex = editEvent.PageIndex;
                                    int annotindex = editEvent.AnnotIndex;
                                    viewModel.UpdateAddedAnnot(pageindex, annotindex);
                                }
                            }

                            var annot = e[0].EditAnnotArgs;
                            if (
                               annot.EventType == AnnotArgsType.AnnotSquare ||
                               annot.EventType == AnnotArgsType.AnnotCircle ||
                               annot.EventType == AnnotArgsType.AnnotLine ||
                               annot.EventType == AnnotArgsType.AnnotStamp
                               )
                            {
                                PDFViewer.ClearSelectAnnots();
                                PDFViewer.SelectAnnotation(annot.PageIndex, annot.AnnotIndex);
                            }

                            break;

                        case ActionType.Del:
                            isTabItemAnnotation = IsBOTATabItemShow(out bOTAContentViewModel, out bOTAContent, "TabItemAnnotation");
                            if (isTabItemAnnotation)
                            {
                                AnnotationContentViewModel viewModel = GetAnnotationContentViewModel(bOTAContentViewModel, out AnnotationContent annotation);

                                if (viewModel != null)
                                {
                                    int pageindex = editEvent.PageIndex;
                                    int annotindex = editEvent.AnnotIndex;
                                    viewModel.UpdateModifiedAnnot(pageindex, annotindex, true);
                                }
                            }
                            break;

                        case ActionType.Modify:
                            isTabItemAnnotation = IsBOTATabItemShow(out bOTAContentViewModel, out bOTAContent, "TabItemAnnotation");
                            if (bOTAContent.TabItemAnnotation.IsSelected)
                            {
                                AnnotationContentViewModel viewModel = GetAnnotationContentViewModel(bOTAContentViewModel, out AnnotationContent annotation);

                                if (viewModel != null)
                                {
                                    int pageindex = editEvent.PageIndex;
                                    int annotindex = editEvent.AnnotIndex;
                                    viewModel.UpdateModifiedAnnot(pageindex, annotindex, false);
                                }
                            }
                            break;

                        case ActionType.TextEdit:
                            break;

                        default:
                            break;
                    }
                }
                //空白处 右键菜单 添加注释   为单次添加，不连续添加
                if (IsNoSelectMenu)
                {
                    IsNoSelectMenu = false;
                    PDFViewer.SetMouseMode(MouseModes.PanTool);
                }
            }
        }

        private void PDFViewer_WidgetClickHander(object sender, WidgetArgs e)
        {
        }

        private void PDFViewer_AnnotHoverHandler(object sender, AnnotHoverData e)
        {
            if (e != null && e.DrawContext != null)
            {
                Rect hoverRect = new Rect(
                    e.PaintRect.Left - 2,
                    e.PaintRect.Top - 2,
                    e.PaintRect.Width + 4,
                    e.PaintRect.Height + 4);
                Pen hoverPen = new Pen(new SolidColorBrush(Color.FromArgb(0xff, 0x11, 0x8A, 0xff)), 1);
                hoverPen.DashStyle = DashStyles.Dash;
                e.DrawContext?.DrawRectangle(null, hoverPen, hoverRect);


                //便签，显示ToolTip内容
                if (e.Annot != null && e.Annot.Type == C_ANNOTATION_TYPE.C_ANNOTATION_TEXT)
                {
                    if (PDFViewer.ToolTip == null)
                    {
                        var content = e.Annot.GetContent();
                        if (string.IsNullOrEmpty(content) == false)
                        {
                            ToolTip TipChild = new ToolTip();
                            TipChild.Style = App.Current.Resources["FlowToolTip"] as Style;
                            TipChild.MaxWidth = 246;
                            TipChild.Content = content;
                            TipChild.Visibility = Visibility.Visible;
                            TipChild.IsOpen = true;
                            TipChild.Placement = PlacementMode.Right;
                            var rec = e.Annot.GetRect();
                            TipChild.PlacementRectangle = new Rect(rec.left, rec.top, rec.right, rec.bottom);
                            TipChild.PlacementTarget = PDFViewer.Parent as ContentControl;
                            TipChild.Placement = PlacementMode.MousePoint;
                            PDFViewer.ToolTip = TipChild;
                            oldRect = hoverRect;
                            PDFViewer.MouseMove -= PDFViewer_MouseMove;
                            PDFViewer.MouseMove += PDFViewer_MouseMove;
                            return;
                        }

                    }

                }
            }

            CloseAnnotToolTip();
        }

        private Rect oldRect = new Rect(0, 0, 0, 0);

        private void CloseAnnotToolTip()
        {
            if (PDFViewer.ToolTip != null && PDFViewer.ToolTip is ToolTip)
            {
                ToolTip oldTips = (ToolTip)PDFViewer.ToolTip;
                oldTips.IsOpen = false;
                oldTips.Visibility = Visibility.Collapsed;
                PDFViewer.ToolTip = null;
                PDFViewer.MouseMove -= PDFViewer_MouseMove;
                oldRect = new Rect(0, 0, 0, 0);
            }
        }

        private void PDFViewer_MouseMove(object sender, MouseEventArgs e)
        {
            if (sender != null && PDFViewer.ToolTip != null && PDFViewer.Parent != null)
            {
                var newPoint = e.GetPosition(PDFViewer.Parent as ContentControl);
                var isOutw = newPoint.X > (oldRect.X + oldRect.Width + 4);
                var isOuth = newPoint.Y > (oldRect.Y + oldRect.Height + 4);
                if (newPoint.X < oldRect.X || newPoint.Y < oldRect.Y || isOutw || isOuth)
                {
                    CloseAnnotToolTip();
                }
            }
        }

        #endregion PDFViewer事件

        #region BindingEvent事件

        private void AnnotProperty_DefaultStored(object sender, object e)
        {
        }

        //同一属性面板，不同的注释类型
        private void AnnotPropertyPanel_AnnotTypeChanged(object sender, Dictionary<AnnotArgsType, object> e)
        {
            if (e != null)
            {
                AnnotHandlerEventArgs annotArgs = null;
                foreach (AnnotArgsType argsType in e.Keys)
                {
                    switch (argsType)
                    {
                        case AnnotArgsType.AnnotSquare:
                            annotArgs = GetRect();
                            break;

                        case AnnotArgsType.AnnotCircle:
                            annotArgs = GetCircle();
                            break;

                        case AnnotArgsType.AnnotLine:
                            var LineTag = e[argsType] as string;
                            annotArgs = GetArrowLine(LineTag);
                            break;
                    }
                    if (annotArgs != null)
                    {
                        annotArgs.Author = Settings.Default.AppProperties.Description.Author;
                        PDFViewer.SetMouseMode(MouseModes.AnnotCreate);
                        PDFViewer.SetToolParam(annotArgs);
                    }
                    ShowPropertyPanel();
                }
            }
        }

        private void AnnotPropertyPanel_DataChanged(object sender, Dictionary<AnnotArgsType, object> e)
        {
            if (e != null)
            {
                foreach (AnnotArgsType argsType in e.Keys)
                {
                    switch (argsType)
                    {
                        case AnnotArgsType.AnnotHighlight:
                            if (e[argsType] is Color)
                            {
                                HighLightColor = new SolidColorBrush((Color)e[argsType]);
                            }
                            if (e[argsType] is double)
                            {
                                HighLightOpacity = (double)e[argsType];
                            }
                            break;

                        case AnnotArgsType.AnnotUnderline:
                            if (e[argsType] is Color)
                            {
                                UnderLineColor = new SolidColorBrush((Color)e[argsType]);
                            }
                            if (e[argsType] is double)
                            {
                                underLineOpacity = (double)e[argsType];
                            }
                            break;

                        case AnnotArgsType.AnnotSquiggly:
                            if (e[argsType] is Color)
                            {
                                SquigglyColor = new SolidColorBrush((Color)e[argsType]);
                            }
                            if (e[argsType] is double)
                            {
                                SquigglyOpacity = (double)e[argsType];
                            }
                            break;

                        case AnnotArgsType.AnnotStrikeout:
                            if (e[argsType] is Color)
                            {
                                StrikeoutColor = new SolidColorBrush((Color)e[argsType]);
                            }
                            if (e[argsType] is double)
                            {
                                StrikeoutOpacity = (double)e[argsType];
                            }
                            break;

                        case AnnotArgsType.AnnotFreehand:

                            if (e[argsType] is FreehandAnnotArgs)
                            {
                                var annot = e[argsType] as FreehandAnnotArgs;
                                if (annot != null)
                                {
                                    if (propertyPanel != null)
                                    {
                                        //属性面板，切换橡皮擦后，再回到画笔时，需要恢复最近画笔的属性值
                                        var AnnotEvent = AnnotAttribEvent.GetAnnotAttribEvent(annot, annot.GetAnnotAttrib());
                                        propertyPanel.AnnotEvent = AnnotEvent;
                                        var AnnotEvents = new List<AnnotAttribEvent>();
                                        AnnotEvents.Add(AnnotEvent);
                                        propertyPanel.AnnotEvents = AnnotEvents;
                                        propertyPanel.annot = annot;
                                        //手绘注释工具按钮的属性
                                        // FreehandPath.Opacity = annot.Transparency;
                                        // FreehandPath.Fill = new SolidColorBrush(annot.InkColor);
                                    }
                                    PDFViewer.SetToolParam(annot);
                                }
                            }

                            break;

                        case AnnotArgsType.AnnotErase:
                            if (e[argsType] is ToggleButton)
                            {
                                ToggleButton clickBtn = e[argsType] as ToggleButton;

                                if (clickBtn.IsChecked == true)
                                {
                                    if (clickBtn.Tag.ToString() == "PenBtn")
                                    {
                                        CustomIconToggleBtn btn = new CustomIconToggleBtn();
                                        btn.Tag = "Freehand"; btn.IsChecked = true;
                                        BtnMyTools_Click(btn);
                                        break;
                                    }
                                    EraseArgs eraseArgs = new EraseArgs();
                                    eraseArgs.UIBorderColor = Color.FromArgb(0x1A, 0x00, 0x00, 0x00);
                                    eraseArgs.UIFillColor = Color.FromArgb(0x1A, 0x00, 0x00, 0x00);
                                    eraseArgs.Thickness = 10;
                                    DefaultAnnotProperty annotProperty = SettingHelper.GetAnnotDefaultProperty(AnnotArgsType.AnnotErase);
                                    if (annotProperty != null)
                                    {
                                        eraseArgs.Thickness = annotProperty.Thickness;
                                    }

                                    PDFViewer.ClearSelectAnnots(false);
                                    PDFViewer.SetMouseMode(MouseModes.AnnotCreate);
                                    PDFViewer.SetToolParam(eraseArgs);

                                    List<AnnotHandlerEventArgs> eraseArgsList = new List<AnnotHandlerEventArgs>();
                                    if (eraseArgs != null)
                                        eraseArgsList.Add(eraseArgs);

                                    AddToPropertyPanel("FreehandAnnotProperty", "Freehand", eraseArgsList);
                                }
                            }
                            break;

                        case AnnotArgsType.AnnotSquare:
                        case AnnotArgsType.AnnotCircle:
                        case AnnotArgsType.AnnotLine:
                        case AnnotArgsType.AnnotFreeText:
                            //创建注释后，修改注释属性，可用于下次创建的注释
                            if (propertyPanel != null && propertyPanel.annot != null && PDFViewer.MouseMode == MouseModes.AnnotCreate)
                            {
                                PDFViewer.SetToolParam(propertyPanel.annot);
                            }

                            break;
                    }
                }
            }
        }

        #endregion BindingEvent事件
    }
}