kmpdfkit_demo/Demo/Examples/DigitalSignature/MainWindow.xaml.cs

using Compdfkit_Tools.Helper;
using Compdfkit_Tools.PDFControl;
using Compdfkit_Tools.PDFView;
using ComPDFKitViewer;
using ComPDFKitViewer.PdfViewer;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace DigitalSignature
{
    /// <summary>
    /// MainWindow.xaml 的交互逻辑
    /// </summary>
    public partial class MainWindow : Window, INotifyPropertyChanged
    {
        private string currentMode = "Viewer";

        private PDFViewControl pdfViewer;
        private PDFViewControl passwordViewer;
        private RegularViewerControl regularViewerControl = new RegularViewerControl();
        private DigitalSignatureControl digitalSignatureControl = new DigitalSignatureControl();
        private CPDFBOTABarControl botaBarControl = new CPDFBOTABarControl(BOTATools.Thumbnail | BOTATools.Outline | BOTATools.Bookmark | BOTATools.Search | BOTATools.Annotation);
        private CPDFDisplaySettingsControl displaySettingsControl = new CPDFDisplaySettingsControl();

        private PanelState panelState = PanelState.GetInstance();

        public event PropertyChangedEventHandler PropertyChanged;
        protected virtual void OnPropertyChanged([CallerMemberName] string propertyName = null)
        {
            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
        }


        private bool _canSave = false;
        public bool CanSave
        {
            get => _canSave;
            set
            {
                _canSave = value;
                OnPropertyChanged();
            }
        }

        public bool LeftToolPanelButtonIsChecked
        {
            get => panelState.IsLeftPanelExpand;
            set
            {
                panelState.IsLeftPanelExpand = value;
                OnPropertyChanged();
            }
        }

        public bool RightToolPanelButtonIsChecked
        {
            get
            {
                return (panelState.RightPanel == PanelState.RightPanelState.PropertyPanel);
            }
            set
            {
                panelState.RightPanel = (value) ? PanelState.RightPanelState.PropertyPanel : PanelState.RightPanelState.None;
                OnPropertyChanged();
            }
        }

        public bool ViewSettingBtnIsChecked
        {
            get
            {
                return (panelState.RightPanel == PanelState.RightPanelState.ViewSettings);
            }
            set
            {
                panelState.RightPanel = (value) ? PanelState.RightPanelState.ViewSettings : PanelState.RightPanelState.None;
                OnPropertyChanged();
            }
        }

        public MainWindow()
        {
            InitializeComponent();
            DataContext = this;
        }

        #region Load Document
        private void LoadDefaultDocument()
        {
            string defaultFilePath = "PDF32000_2008.pdf";
            pdfViewer.PDFView.InitDocument(defaultFilePath);
            LoadDocument();
        }

        private void LoadCustomControl()
        {
            regularViewerControl.PdfViewControl = pdfViewer;
            regularViewerControl.InitWithPDFViewer(pdfViewer.PDFView);
            regularViewerControl.PdfViewControl.PDFView.SetMouseMode(MouseModes.Viewer);
            regularViewerControl.SetBOTAContainer(null);
            regularViewerControl.SetBOTAContainer(botaBarControl);
            regularViewerControl.SetDisplaySettingsControl(displaySettingsControl);
            PDFGrid.Child = regularViewerControl;
        }

        private void LoadDocument()
        {
            if (pdfViewer.PDFView.Document == null)
            {
                return;
            }

            pdfViewer.PDFView.Load();
            pdfViewer.PDFView.SetShowLink(true);

            pdfViewer.PDFView.InfoChanged -= PdfViewer_InfoChanged;
            pdfViewer.PDFView.InfoChanged += PdfViewer_InfoChanged;

            pdfViewer.PDFView.SetFormFieldHighlight(true);

            PasswordUI.Closed -= PasswordUI_Closed;
            PasswordUI.Canceled -= PasswordUI_Canceled;
            PasswordUI.Confirmed -= PasswordUI_Confirmed;
            PasswordUI.Closed += PasswordUI_Closed;
            PasswordUI.Canceled += PasswordUI_Canceled;
            PasswordUI.Confirmed += PasswordUI_Confirmed;
            ModeComboBox.SelectedIndex = 0;
            LoadCustomControl();
            pdfViewer.PDFView.ChangeFitMode(FitMode.FitWidth);
            CPDFSaclingControl.InitWithPDFViewer(pdfViewer.PDFView);
            regularViewerControl.IsActive = true;
        }

        private void PdfViewer_InfoChanged(object sender, KeyValuePair<string, object> e)
        {
            if (e.Key == "Zoom")
            {
                CPDFSaclingControl.SetZoomTextBoxText(string.Format("{0}", (int)((double)e.Value * 100)));
            }
        }

        private void PasswordUI_Confirmed(object sender, string e)
        {
            if (passwordViewer != null && passwordViewer.PDFView != null && passwordViewer.PDFView.Document != null)
            {
                passwordViewer.PDFView.Document.UnlockWithPassword(e);
                if (passwordViewer.PDFView.Document.IsLocked == false)
                {
                    PasswordUI.SetShowError("", Visibility.Collapsed);
                    PasswordUI.ClearPassword();
                    PasswordUI.Visibility = Visibility.Collapsed;
                    PopupBorder.Visibility = Visibility.Collapsed;
                    pdfViewer = passwordViewer;
                    LoadDocument();
                }
                else
                {
                    PasswordUI.SetShowError("Wrong Password", Visibility.Visible);
                }
            }
        }

        private void PasswordUI_Canceled(object sender, EventArgs e)
        {
            PopupBorder.Visibility = Visibility.Collapsed;
            PasswordUI.Visibility = Visibility.Collapsed;
        }

        private void PasswordUI_Closed(object sender, EventArgs e)
        {
            PopupBorder.Visibility = Visibility.Collapsed;
            PasswordUI.Visibility = Visibility.Collapsed;
        }
        #endregion

        private void OpenFile_Click(object sender, RoutedEventArgs e)
        {

        }

        private void SaveFileBtn_Click(object sender, RoutedEventArgs e)
        {

        }

        private void LeftToolPanelButton_Click(object sender, RoutedEventArgs e)
        {

        }

        private void ComboBox_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            var item = (sender as ComboBox).SelectedItem as ComboBoxItem;
            if (item.Content as string == currentMode)
            {
                return;
            }

            if (currentMode == "Viewer")
            {
                regularViewerControl.ClearViewerControl();
                regularViewerControl.IsActive = false;
            }
            else if(currentMode == "Digital Signature")
            {
                digitalSignatureControl.ClearViewerControl();
            }

            if (item.Content as string == "Viewer")
            {
                regularViewerControl.IsActive = true;
                if (regularViewerControl.PdfViewControl != null && regularViewerControl.PdfViewControl.PDFView != null)
                {
                    PDFGrid.Child = regularViewerControl;
                    regularViewerControl.PdfViewControl.PDFView.SetMouseMode(MouseModes.Viewer);
                    regularViewerControl.PdfViewControl = pdfViewer; 
                    regularViewerControl.InitWithPDFViewer(pdfViewer.PDFView);
                    regularViewerControl.SetBOTAContainer(botaBarControl);
                    regularViewerControl.SetDisplaySettingsControl(displaySettingsControl);
                }
            }
            else if (item.Content as string == "Digital Signature")
            {
                if (digitalSignatureControl.PdfViewControl != null && digitalSignatureControl.PdfViewControl.PDFView != null)
                {
                    PDFGrid.Child = digitalSignatureControl;
                    digitalSignatureControl.PdfViewControl.PDFView.SetMouseMode(MouseModes.Viewer);
                    digitalSignatureControl.PdfViewControl = pdfViewer;
                    digitalSignatureControl.InitWithPDFViewer(pdfViewer.PDFView);
                }
            }
            currentMode = item.Content as string;
        }

        private void ExpandSearchBtn_Click(object sender, RoutedEventArgs e)
        {

        }

        private void RightPanelButton_Click(object sender, RoutedEventArgs e)
        {

        }

        private void ViewSettingBtn_Click(object sender, RoutedEventArgs e)
        {

        }

        private void PageInfoBtn_Click(object sender, RoutedEventArgs e)
        {

        }

        private void FileInfoCloseBtn_Click(object sender, RoutedEventArgs e)
        {

        }

        private void Window_Loaded(object sender, RoutedEventArgs e)
        {
            pdfViewer = new PDFViewControl();
            LoadDefaultDocument();
        }

        private void Window_Unloaded(object sender, RoutedEventArgs e)
        {

        }
    }
}