PDFOffice_Windows_exe/PDF Office/ViewModels/FillAndSign/FillAndSignContentViewModel.cs

using ComPDFKitViewer.AnnotEvent;
using ComPDFKitViewer.PdfViewer;
using PDF_Office.Model;
using Prism.Commands;
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 PDF_Office.ViewModels.Tools;
using ComPDFKitViewer;
using PDF_Office.Helper;
using PDF_Office.Properties;
using PDFSettings;
using System.Windows.Media;

namespace PDF_Office.ViewModels.FillAndSign
{
    public class FillAndSignContentViewModel : BindableBase, INavigationAware
    {
        #region 
        private CPDFViewer PDFViewer;
        private AnnotPropertyPanel propertyPanel = new AnnotPropertyPanel();
        private ViewContentViewModel viewContentViewModel;

        private IRegionManager regions { get; set; }
        #endregion

        #region Command
        public DelegateCommand<RoutedEventArgs> CheckCommand { get; set; }

        /// <summary>
        /// 按钮名称和属性面板映射字典
        /// </summary>
        public Dictionary<string, string> btnToProperty = new Dictionary<string, string>();
        #endregion

        public FillAndSignContentViewModel(IRegionManager regionManager)
        {
            regions = regionManager;

            CheckCommand = new DelegateCommand<RoutedEventArgs>(CheckedEvent);

            InitDictionary();
        }

        private void CheckedEvent(RoutedEventArgs e)
        {
            var control = e.OriginalSource as Control;

            NavigateToProperty(control.Name);

            if(control.Name== "RbtnSign") { AnnotHandlerEventArgs annotArgs = null; FindAnnotTypeKey("Signature", ref annotArgs); }
            
        }

        //注释工具
        private void FindAnnotTypeKey(string tag, ref AnnotHandlerEventArgs annotArgs, bool isRightMenuAdd = false)
        {
            switch (tag)
            {
                

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

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

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

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


        /// <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;

            List<AnnotHandlerEventArgs> stampAnnotArgsList = new List<AnnotHandlerEventArgs>();
            if (stampAnnotArgs != null)
                stampAnnotArgsList.Add(stampAnnotArgs);

            AddToPropertyPanel("StampAnnotProperty", null, stampAnnotArgsList, annotAttribsList);
            return stampAnnotArgs;
        }

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

            if (selectedArgs == null || selectedArgs.Count == 0)
            {
                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;

                if (freetextArgs != null)
                {
                    selectedArgs = new List<AnnotHandlerEventArgs>();
                    selectedArgs.Add(freetextArgs);
                }
            }
            else
            {
                freetextArgs = selectedArgs[0] as FreeTextAnnotArgs;
                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", selectedArgs, annotAttribsList);
            return freetextArgs;
        }

        /// <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, List<AnnotHandlerEventArgs> annots = null, Dictionary<AnnotAttrib, object> annotAttribsList = null, AnnotAttribEvent annotAttribEvent = null)
        {

            if (annots != null)
            {
                propertyPanel.annotlists = annots;
                propertyPanel.annot = annots[0];
            }
            else
            {
                propertyPanel.annotlists = null;
                propertyPanel.annot = null;
            }

            if (annotAttribsList != null)
            {
                if (annots.Count > 1)
                {
                    if (propertyPanel.AnnotEvents == null)
                        propertyPanel.AnnotEvents = new List<AnnotAttribEvent>();

                    propertyPanel.AnnotEvents.Clear();

                    foreach (var itemAnnot in annots)
                    {
                        var eventitem = AnnotAttribEvent.GetAnnotAttribEvent(itemAnnot, annotAttribsList);
                        propertyPanel.AnnotEvents.Add(eventitem);
                    }
                }

                propertyPanel.AnnotEvent = AnnotAttribEvent.GetAnnotAttribEvent(annots[0], annotAttribsList);
                if (annots[0] is LinkAnnotArgs && annotAttribEvent != null)
                {
                    propertyPanel.AnnotEvent = annotAttribEvent;
                }
            }

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

        private void NavigateToProperty(string btnName)
        {
            NavigationParameters values = new NavigationParameters();
            values.Add(ParameterNames.PDFViewer, PDFViewer);
            regions.RequestNavigate(RegionNames.PropertyRegionName,btnToProperty[btnName]);
            viewContentViewModel.IsPropertyOpen = true;
        }

        /// <summary>
        /// 初始化按钮名称-属性面板字典
        /// </summary>
        private void InitDictionary()
        {
            btnToProperty["RbtnText"] = "TextFillProperty";
            btnToProperty["RbtnTick"] = "ShapFillProperty";
            btnToProperty["RbtnFork"] = "ShapFillProperty";
            btnToProperty["RbtnRectangle"] = "ShapFillProperty";
            btnToProperty["RbtnLine"] = "ShapFillProperty";
            btnToProperty["RbtnPoint"] = "ShapFillProperty";
            btnToProperty["RbtnDate"] = "DateFillProperty";
            btnToProperty["RbtnSign"] = "";

        }

        #region Navigation

        public bool IsNavigationTarget(NavigationContext navigationContext)
        {
            return true;
        }

        public void OnNavigatedFrom(NavigationContext navigationContext)
        {

        }

        public void OnNavigatedTo(NavigationContext navigationContext)
        {
            navigationContext.Parameters.TryGetValue<ViewContentViewModel>(ParameterNames.ViewContentViewModel, out viewContentViewModel);
            navigationContext.Parameters.TryGetValue<CPDFViewer>(ParameterNames.PDFViewer, out PDFViewer);
        }
        #endregion
    }
}