kmpdfkit_demo/ComPDFKit.Demo/PDFViewerControl.xaml.cs

using ComPDFKitDemo.AnntControl;
using ComPDFKitDemo.BOTA;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Input;
using ComPDFKitViewer;
using ComPDFKitViewer.AnnotEvent;
using ComPDFKitViewer.PdfViewer;
using ComPDFKitDemo.WidgetForm;
using ComPDFKit.PDFAnnotation.Form;
using ComPDFKitViewer.AnnotView.Form;
using Microsoft.Win32;
using System.IO;
using System.Windows.Media.Imaging;
using System.Linq;
using ComPDFKit.Import;

namespace ComPDFKitDemo
{
    public partial class PDFViewerControl : UserControl
    {
        private SideWindowControl sideControl;
        private MainWindow currentMain;
        public CPDFViewer currentViewer { get; private set; }
        public AnnotPropertiesControl AnnotSetControl;
        private string filePath="";
        private double[] zoomLevel = { 1.00f, 8f, 12f, 25, 33f, 50, 66f, 75, 100, 125, 150, 200, 300, 400, 600, 800,1000 };
        public double NaviWidth
        {
            get { return DocViewerGrid.ColumnDefinitions[0].Width.Value; }
            set { DocViewerGrid.ColumnDefinitions[0].Width = new GridLength(value); }
        }

        public PDFViewerControl(MainWindow mainWindow)
        {
            InitializeComponent();

            currentMain = mainWindow;
            currentViewer = new CPDFViewer();
            sideControl = new SideWindowControl();
            AnnotSetControl = new AnnotPropertiesControl();
            AnnotSetControl.pdfViewerControl = this;
            NaviBarGrid.Children.Add(sideControl);
            PDFGrid.Children.Add(currentViewer);
            AnnotCtrlGrid.Children.Add(AnnotSetControl);
            DocViewerGrid.ColumnDefinitions[4].Width = new GridLength(200);
            AnnotSplitter.Visibility = Visibility.Visible;

            currentMain.btn_collapse.IsEnabled = false;
            currentMain.btn_expand.IsEnabled = true;

            currentViewer.AnnotActiveHandler += CurrentView_AnnotActiveHandler;
            currentViewer.AnnotCommandHandler += CurrentViewer_AnnotCommandHandler;
            currentViewer.TextEditCommandHandler += CurrentViewer_TextEditCommandHandler;
            currentViewer.TextEditActiveHandler += CurrentViewer_TextEditActiveHandler;
            currentViewer.SnapshotCommandHandler += CurrentViewer_SnapshotCommandHandler;
            currentViewer.MouseWheelZoomHandler += CurrentViewer_MouseWheelZoomHandler;
            currentViewer.AnnotEditHandler += CurrentViewer_AnnotEditHandler;
            currentViewer.WidgetClickHander += CurrentViewer_WidgetClickHander;
        }

        private void CurrentViewer_WidgetClickHander(object sender, WidgetArgs e)
        {
            if (e is WidgetSignArgs)
            {
                WidgetSignArgs signArgs = (WidgetSignArgs)e;

                //set text ap
                //signArgs.UpdateApWithText("hhh", "Courier-Bold", Colors.Red, 0);
                //set image ap
                OpenFileDialog openFileDialog = new OpenFileDialog();
                openFileDialog.Filter = "Image Files(*.jpg;*.jpeg;*.png;*.bmp)|*.jpg;*.jpeg;*.png;*.bmp;";
                if (openFileDialog.ShowDialog() == true)
                {
                    string ImagePath = openFileDialog.FileName;
                    using (FileStream fileData = File.OpenRead(ImagePath))
                    {
                        string fileExt = Path.GetExtension(ImagePath).ToLower();
                        BitmapFrame frame = null;
                        BitmapDecoder decoder = BitmapDecoder.Create(fileData, BitmapCreateOptions.None, BitmapCacheOption.Default);
                        if (decoder != null && decoder.Frames.Count > 0)
                        {
                            frame = decoder.Frames[0];
                        }
                        if (frame != null)
                        {
                            byte[] ImageArray = new byte[frame.PixelWidth * frame.PixelHeight * 4];
                            int ImageWidth = frame.PixelWidth;
                            int ImageHeight = frame.PixelHeight;
                            frame.CopyPixels(ImageArray, frame.PixelWidth * 4, 0);
                            signArgs.UpdateApWithImage(ImageArray, ImageWidth, ImageHeight, C_Scale_Type.fitCenter, 0);
                        }
                    }
                }
            }
        }

        public void CurrentViewer_AnnotEditHandler(object sender, List<AnnotEditEvent> e)
        {
            sideControl.LoadAnnot();
        }

        private double CheckZoomLevel(double zoom, bool IsGrowth)
        {
            double standardZoom = 100;
            if(zoom<=0.01)
            {
                return 0.01;
            }
            if (zoom >= 10)
            {
                return 10;
            }

            zoom *= 100;
            for (int i = 0; i < zoomLevel.Length - 1; i++)
            {
                if (zoom > zoomLevel[i] && zoom <= zoomLevel[i + 1] && IsGrowth)
                {
                    standardZoom = zoomLevel[i + 1];
                    break;
                }
                if (zoom >= zoomLevel[i] && zoom < zoomLevel[i + 1] && !IsGrowth)
                {
                    standardZoom = zoomLevel[i];
                    break;
                }
            }
            return standardZoom / 100;
        }
        private void CurrentViewer_MouseWheelZoomHandler(object sender, bool e)
        {
            double newZoom = CheckZoomLevel(currentViewer.ZoomFactor+(e?0.01:-0.01), e);
            currentViewer.Zoom(newZoom);
        }

        private void CurrentViewer_SnapshotCommandHandler(object sender, SnapshotCommandArgs e)
        {
            switch (e.CommandType)
            {
                case CommandType.Context:
                    e.Handle = true;
                    e.PopupMenu = new ContextMenu();
                    if(e.HitSnapshotTool)
                    {
                        e.PopupMenu.Items.Add(new MenuItem() { Header = "Copy", Command = ApplicationCommands.Copy, CommandTarget = (UIElement)sender });
                    }
                    e.PopupMenu.Items.Add(new MenuItem() { Header = "Select All", Command = ApplicationCommands.SelectAll, CommandTarget = (UIElement)sender });
                    break;
                case CommandType.Copy:
                    {
                        e.DoCommand();
                    }
                    break;
                default:
                    break;
            }
        }

        private void CurrentViewer_TextEditActiveHandler(object sender, TextEditArgs e)
        {
            AnnotSetControl.ProcessTextEditEvent(e);
        }

        private void CurrentViewer_TextEditCommandHandler(object sender, TextEditCommand e)
        {
            switch (e.CommandType)
            {
                case CommandType.Context:
                    e.Handle = true;
                    e.PopupMenu = new ContextMenu();
                    e.PopupMenu.Items.Add(new MenuItem() { Header = "Copy", Command = ApplicationCommands.Copy, CommandTarget = (UIElement)sender });
                    e.PopupMenu.Items.Add(new MenuItem() { Header = "Cut", Command = ApplicationCommands.Cut, CommandTarget = (UIElement)sender });
                    e.PopupMenu.Items.Add(new MenuItem() { Header = "Paste", Command = ApplicationCommands.Paste, CommandTarget = (UIElement)sender });
                    e.PopupMenu.Items.Add(new MenuItem() { Header = "Delete", Command = ApplicationCommands.Delete, CommandTarget = (UIElement)sender });
                    e.PopupMenu.Items.Add(new MenuItem() { Header = "Select All", Command = ApplicationCommands.SelectAll, CommandTarget = (UIElement)sender });
                    break;
                case CommandType.Copy:
                case CommandType.Cut:
                case CommandType.Delete:
                case CommandType.SelectAll:
                    e.DoCommand();
                    break;
                case CommandType.Paste:
                    e.DoCommand();
                    break;
            }
        }

        private void CurrentViewer_AnnotCommandHandler(object sender, AnnotCommandArgs e)
        {
           switch(e.CommandType)
            {
                case CommandType.Context:
                    e.Handle = true;
                    e.PopupMenu = new ContextMenu();
                    e.PopupMenu.Items.Add(new MenuItem() { Header = "Copy", Command = ApplicationCommands.Copy, CommandTarget = (UIElement)sender });
                    e.PopupMenu.Items.Add(new MenuItem() { Header = "Cut", Command = ApplicationCommands.Cut, CommandTarget = (UIElement)sender });
                    e.PopupMenu.Items.Add(new MenuItem() { Header = "Paste", Command = ApplicationCommands.Paste, CommandTarget = (UIElement)sender });
                    e.PopupMenu.Items.Add(new MenuItem() { Header = "Delete", Command = ApplicationCommands.Delete, CommandTarget = (UIElement)sender });
                    if(e.CommandTarget==TargetType.WidgetView)
                    {
                        MenuItem propertyMenu = new MenuItem();
                        propertyMenu.Header = "Property";
                        propertyMenu.Click += PropertyMenu_Click;
                        propertyMenu.CommandParameter = (e as WidgetViewCommandArgs);
                        e.PopupMenu.Items.Add(propertyMenu);
                    }
                    if(e.CommandTarget== TargetType.Annot && e.AnnotEventArgsList.AsEnumerable().Where(x=>x.EventType==AnnotArgsType.AnnotRedaction).Count()>0)
                    {
                        MenuItem propertyMenu = new MenuItem();
                        propertyMenu.Header = "Apply Redaction";
                        propertyMenu.Click += ApplyRedaction_Click;
                        propertyMenu.CommandParameter = e;
                        e.PopupMenu.Items.Add(propertyMenu);
                    }
                    if(e.CommandTarget==TargetType.ImageSelection)
                    {
                        e.PopupMenu = new ContextMenu();
                        int count = 0;
                        if (currentViewer!=null)
                        {
                            count= currentViewer.GetSelectImageCount();
                        }
                        MenuItem copyMenu=new MenuItem();
                        copyMenu.Header = "Copy Images";
                        copyMenu.Click += CopyMenu_Click;
                        copyMenu.CommandParameter = e;
                        if(count>1)
                        {
                            copyMenu.IsEnabled = false;
                        }
                        e.PopupMenu.Items.Add(copyMenu);

                        MenuItem extractMenu = new MenuItem();
                        extractMenu.Header = "Extract Images";
                        extractMenu.Click += ExtractMenu_Click;
                        extractMenu.CommandParameter = e;
                        e.PopupMenu.Items.Add(extractMenu);
                    }
                    if(e.PressOnMedia || e.PressOnSound)
                    {
                        e.PopupMenu = new ContextMenu();
                        //if(e.PressOnSound)
                        //{
                        //    e.PopupMenu.Items.Add(new MenuItem() { Header = "Delete", Command = ApplicationCommands.Delete, CommandTarget = (UIElement)sender,CommandParameter=e});
                        //}
                        e.PopupMenu.Items.Add(new MenuItem() { Header = "Play", Command = MediaCommands.Play, CommandTarget = (UIElement)sender,CommandParameter=e });
                    }
                    break;
                default:
                    e.DoCommand();
                    break;
            }
        }

        private void ExtractMenu_Click(object sender, RoutedEventArgs e)
        {
            System.Windows.Forms.FolderBrowserDialog folderDialog = new System.Windows.Forms.FolderBrowserDialog();
            if (folderDialog.ShowDialog() == System.Windows.Forms.DialogResult.OK)
            {
                string choosePath = folderDialog.SelectedPath;
                try
                {
                    Dictionary<int, List<System.Drawing.Bitmap>> imageDict = currentViewer?.GetSelectedImages();

                    if (imageDict != null && imageDict.Count > 0)
                    {
                        foreach (int pageIndex in imageDict.Keys)
                        {
                            List<System.Drawing.Bitmap> imageList = imageDict[pageIndex];
                            foreach (System.Drawing.Bitmap image in imageList)
                            {
                                string savePath = Path.Combine(choosePath, Guid.NewGuid() + ".jpg");
                                image.Save(savePath, System.Drawing.Imaging.ImageFormat.Jpeg);
                            }
                        }
                    }
                    Process.Start("explorer", "/select,\"" + choosePath + "\"");
                }
                catch (Exception ex)
                {

                }

            }
        }

        private void CopyMenu_Click(object sender, RoutedEventArgs e)
        {
            try
            {
                Dictionary<int, List<System.Drawing.Bitmap>> imageDict = currentViewer?.GetSelectedImages();

                if (imageDict != null && imageDict.Count > 0)
                {
                    foreach (int pageIndex in imageDict.Keys)
                    {
                        List<System.Drawing.Bitmap> imageList = imageDict[pageIndex];
                        foreach (System.Drawing.Bitmap image in imageList)
                        {
                            MemoryStream ms = new MemoryStream();
                            image.Save(ms, System.Drawing.Imaging.ImageFormat.Bmp);
                            BitmapImage imageData = new BitmapImage();
                            imageData.BeginInit();
                            imageData.StreamSource = ms;
                            imageData.CacheOption = BitmapCacheOption.OnLoad;
                            imageData.EndInit();
                            imageData.Freeze();
                            Clipboard.SetImage(imageData);
                            break;
                        }
                    }
                }
            }
            catch (Exception ex)
            {

            }
        }

        private void ApplyRedaction_Click(object sender, RoutedEventArgs e)
        {
           if(currentViewer!=null)
            {
                currentViewer.Document.ApplyRedaction();
                currentViewer.Document.ReleasePages();
                currentViewer.ReloadDocument();
            }
        }

        private void MenuItem_Click(object sender, RoutedEventArgs e)
        {
           
        }

        private void PopFormDialog(WidgetAttribEvent attribEvent)
        {
            switch (attribEvent.WidgeType)
            {
                #region 不同表单控件属性弹窗
                case C_WIDGET_TYPE.WIDGET_RADIOBUTTON:
                    {
                        RadioFormProperty formProperty = new RadioFormProperty();
                        formProperty.WindowStartupLocation = WindowStartupLocation.CenterOwner;
                        formProperty.ShowInTaskbar = false;
                        formProperty.Owner = Window.GetWindow(this);
                        formProperty.CurrentAttribEvent = null;
                        formProperty.SetFormData(attribEvent);
                        formProperty.CurrentAttribEvent = attribEvent;
                        formProperty.Show();
                    }
                    break;
                case C_WIDGET_TYPE.WIDGET_CHECKBOX:
                    {
                        CheckBoxFormProperty formProperty = new CheckBoxFormProperty();
                        formProperty.WindowStartupLocation = WindowStartupLocation.CenterOwner;
                        formProperty.ShowInTaskbar = false;
                        formProperty.Owner = Window.GetWindow(this);
                        formProperty.CurrentAttribEvent = null;
                        formProperty.SetFormData(attribEvent);
                        formProperty.CurrentAttribEvent = attribEvent;
                        formProperty.Show();
                    }
                    break;
                case C_WIDGET_TYPE.WIDGET_TEXTFIELD:
                    {
                        TextFieldFormProperty formProperty = new TextFieldFormProperty();
                        formProperty.WindowStartupLocation = WindowStartupLocation.CenterOwner;
                        formProperty.ShowInTaskbar = false;
                        formProperty.Owner = Window.GetWindow(this);
                        formProperty.CurrentAttribEvent = null;
                        formProperty.SetFormData(attribEvent);
                        formProperty.CurrentAttribEvent = attribEvent;
                        formProperty.Show();
                    }
                    break;
                case C_WIDGET_TYPE.WIDGET_PUSHBUTTON:
                    {
                        PushButtonFormProperty formProperty = new PushButtonFormProperty();
                        formProperty.WindowStartupLocation = WindowStartupLocation.CenterOwner;
                        formProperty.ShowInTaskbar = false;
                        formProperty.Owner = Window.GetWindow(this);
                        formProperty.CurrentAttribEvent = null;
                        formProperty.SetFormData(attribEvent);
                        formProperty.CurrentAttribEvent = attribEvent;
                        formProperty.Show();
                    }
                    break;
                case C_WIDGET_TYPE.WIDGET_LISTBOX:
                    {
                        ListBoxFormProperty formProperty = new ListBoxFormProperty();
                        formProperty.WindowStartupLocation = WindowStartupLocation.CenterOwner;
                        formProperty.ShowInTaskbar = false;
                        formProperty.Owner = Window.GetWindow(this);
                        formProperty.CurrentAttribEvent = null;
                        formProperty.SetFormData(attribEvent);
                        formProperty.CurrentAttribEvent = attribEvent;
                        formProperty.Show();
                    }
                    break;
                case C_WIDGET_TYPE.WIDGET_COMBOBOX:
                    {
                        ComboBoxFormProperty formProperty = new ComboBoxFormProperty();
                        formProperty.WindowStartupLocation = WindowStartupLocation.CenterOwner;
                        formProperty.ShowInTaskbar = false;
                        formProperty.Owner = Window.GetWindow(this);
                        formProperty.CurrentAttribEvent = null;
                        formProperty.SetFormData(attribEvent);
                        formProperty.CurrentAttribEvent = attribEvent;
                        formProperty.Show();
                    }
                    break;
                case C_WIDGET_TYPE.WIDGET_SIGNATUREFIELDS:
                    {
                        SignFormProperty formProperty = new SignFormProperty();
                        formProperty.WindowStartupLocation = WindowStartupLocation.CenterOwner;
                        formProperty.ShowInTaskbar = false;
                        formProperty.Owner = Window.GetWindow(this);
                        formProperty.CurrentAttribEvent = null;
                        formProperty.SetFormData(attribEvent);
                        formProperty.CurrentAttribEvent = attribEvent;
                        formProperty.Show();
                    }
                    break;
                #endregion
                default:
                    break;
            }
        }

        private void PropertyMenu_Click(object sender, RoutedEventArgs e)
        {
            MenuItem menuItem = sender as MenuItem;
            if(menuItem != null && menuItem.CommandParameter is WidgetViewCommandArgs)
            {
                WidgetViewCommandArgs widgetArgs=menuItem.CommandParameter as WidgetViewCommandArgs;
                PopFormDialog(widgetArgs.AnnotEvent);
            }
        }

        #region Events
        public void CurrentView_AnnotActiveHandler(object sender, AnnotAttribEvent e)
        {
            if (sideControl!=null)
            {
                Dictionary<int, List<int>> pageAnnots = new Dictionary<int, List<int>>();
                if (e != null)
                {
                    pageAnnots= e.GetPageAnnotsIndex();
                }
                sideControl.SetSelectAnnotList(pageAnnots);
            }
            if((e is WidgetAttribEvent) || (e!=null &&e.GetAnnotTypes()==AnnotArgsType.WidgetViewForm))
            {
             
            }
            else
            {
                AnnotSetControl.ProcessAnnotEvents(e);
            }
           
        }

        #endregion

        #region Method
        public bool OpenPDF(string fileName)
        {
            try
            {
                currentViewer.InitDocument(fileName);
                if (currentViewer.Document == null)
                {
                    MessageBox.Show("Open File Failed");
                    return false;
                }
                /*  //old
                while(currentViewer.Document.IsLocked)
                {
                    PasswordDlg dlg = new PasswordDlg();
                    System.Windows.Forms.DialogResult dlg_result = dlg.ShowDialog();
                    if (dlg_result == System.Windows.Forms.DialogResult.Cancel && dlg.press_key != 13)
                    {
                        currentViewer.CloseDocument();
                        return false;
                    }
                    currentViewer.Document.UnlockWithPassword(dlg.password);
                    if(currentViewer.Document.IsLocked)
                        MessageBox.Show("Password error.");
                }
                */
                if(currentViewer.Document.IsLocked)
                {
                    EnterPasswordDlg dlg = new EnterPasswordDlg(currentViewer);
                    bool? res = dlg.ShowDialog();
                }
                currentViewer.Load();
            }
            catch (Exception ex)
            {
                return false;
            }
            if (currentViewer.Document == null || currentViewer.Document.IsLocked)
                return false;

            filePath = fileName;
            currentMain.filePathList.Add(fileName);
            return true;
        }

        public void ClosePDF()
        {
            currentViewer.CloseDocument();
            currentMain.filePathList.Remove(filePath);
            sideControl = null;
            currentMain = null;
            AnnotSetControl = null;
        }

        public void OpenNavibar()
        {
            DocViewerGrid.ColumnDefinitions[0].Width = new GridLength(400);
            currentMain.btn_expand.IsEnabled = false;
            currentMain.btn_collapse.IsEnabled = true;
            SideWindowSplitter.Visibility = Visibility.Visible;
            if(sideControl.ThumbnailGrid!=null && sideControl.ThumbnailGrid.Children.Count>0)
            {
                ThumbnailsControl thumbnailCtrl = sideControl.ThumbnailGrid.Children[0] as ThumbnailsControl;
                if(thumbnailCtrl!=null)
                {
                    thumbnailCtrl.Visibility = Visibility.Visible;
                }
            }
            sideControl.Visibility = Visibility.Visible;
            sideControl.CreateSideWindow(currentViewer);
        }

        public void CloseNavibar()
        {
            DocViewerGrid.ColumnDefinitions[0].Width = new GridLength(0);
            currentMain.btn_collapse.IsEnabled = false;
            currentMain.btn_expand.IsEnabled = true;
            SideWindowSplitter.Visibility = Visibility.Collapsed;
            if (sideControl.ThumbnailGrid != null && sideControl.ThumbnailGrid.Children.Count > 0)
            {
                ThumbnailsControl thumbnailCtrl = sideControl.ThumbnailGrid.Children[0] as ThumbnailsControl;
                if (thumbnailCtrl != null)
                {
                    thumbnailCtrl.Visibility = Visibility.Collapsed;
                }
            }
            sideControl.Visibility = Visibility.Collapsed;
        }

        public void HorizontalSplit()
        {
            currentViewer.SetSplitMode(SplitMode.Horizontal);
        }

        public void VerticalSplit()
        {
            currentViewer.SetSplitMode(SplitMode.Vertical);
        }

        public void NoneSplit()
        {
            currentViewer.SetSplitMode(SplitMode.None);
        }

        public void SetMouseMode(MouseModes mouseMode)
        {
            currentViewer.SetMouseMode(mouseMode);

        }
        public void SetToolParam(AnnotHandlerEventArgs args)
        {
            currentViewer.SetToolParam(args);
        }

        public ToolManager CurrentToolManager
        {
            get
            {
              if(currentViewer!=null)
                {
                   return currentViewer.ToolManager;
                }
                return null;
            }
        }

        public UndoManager CurrentUndoManager
        {
            get
            {
                if (currentViewer != null)
                {
                    return currentViewer.UndoManager;
                }
                return null;
            }
        }

        #endregion
    }
}