432 строки
20 KiB
C#
432 строки
20 KiB
C#
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#region Copyright Syncfusion Inc. 2001-2024.
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// Copyright Syncfusion Inc. 2001-2024. All rights reserved.
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// Use of this code is subject to the terms of our license.
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// A copy of the current license can be obtained at any time by e-mailing
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// licensing@syncfusion.com. Any infringement will be prosecuted under
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// applicable laws.
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#endregion
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using Microsoft.Win32;
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using syncfusion.demoscommon.wpf;
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using Syncfusion.Pdf.Parsing;
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using Syncfusion.Windows.PdfViewer;
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using Syncfusion.Windows.Tools.Controls;
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.IO;
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using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Input;
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using System.Windows.Media;
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using System.Windows.Media.Imaging;
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using System.Windows.Resources;
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namespace syncfusion.pdfviewerdemos.wpf
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{
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/// <summary>
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/// Represents the view model class
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/// </summary>
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public class CustomToolbarViewModel : NotificationObject
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{
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#region Private Members
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private Stream m_documentStream;
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private RibbonButton m_customStampButton = null;
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private List<Image> m_imageList = new List<Image>();
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CustomToolbar m_customToolbarWindow = null;
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private string m_fileName;
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private string m_selectedItem;
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#endregion
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#region Constructor
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/// <summary>
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/// Initializes a new instance of the <see cref="CustomToolbarViewModel"/> class.
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/// </summary>
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public CustomToolbarViewModel()
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{
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m_documentStream = GetFileStream("HTTP Succinctly.pdf");
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}
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private Stream GetFileStream(string fileName)
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{
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Uri uriResource = new Uri("/syncfusion.pdfviewerdemos.wpf;component/Assets/" + fileName, UriKind.Relative);
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StreamResourceInfo streamResourceInfo = Application.GetResourceStream(uriResource);
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return streamResourceInfo.Stream;
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}
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#endregion
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#region Properties
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/// <summary>
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/// Gets or sets the documnet path.
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/// </summary>
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public Stream DocumentStream
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{
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get
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{
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return m_documentStream;
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}
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set
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{
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m_documentStream = value;
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}
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}
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public string SelectedItem
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{
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get
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{
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return m_selectedItem;
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}
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set
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{
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if (m_selectedItem != value)
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{
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m_selectedItem = value;
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RaisePropertyChanged("SelectedItem");
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OnItemSelect(m_selectedItem);
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}
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}
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}
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#endregion
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/// <summary>
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/// Loads PDF on load and initializes controls in custom toolbar.
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/// </summary>
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public void Loaded(object sender, RoutedEventArgs e)
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{
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m_customToolbarWindow = (sender as CustomToolbar).FindName("ribbonwindow") as CustomToolbar;
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m_customToolbarWindow.Btnopen.Click += new RoutedEventHandler(BtnOpen_Click);
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UnWireEvents();
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WireUpEvents();
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InitializeStamp();
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if (m_customToolbarWindow.MyRibbon.BackStageButton != null)
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m_customToolbarWindow.MyRibbon.BackStageButton.Visibility = Visibility.Collapsed;
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m_customToolbarWindow.file_tab.LauncherButton.Visibility = Visibility.Collapsed;
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m_customToolbarWindow.Navigation.LauncherButton.Visibility = Visibility.Collapsed;
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m_customToolbarWindow.Zoom.LauncherButton.Visibility = Visibility.Collapsed;
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m_customToolbarWindow.Size.LauncherButton.Visibility = Visibility.Collapsed;
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m_customToolbarWindow.find_text.LauncherButton.Visibility = Visibility.Collapsed;
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m_customToolbarWindow.Stamp.LauncherButton.Visibility = Visibility.Collapsed;
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m_customToolbarWindow.pdfviewer1.CurrentPageChanged += pdfviewer1_CurrentPageChanged;
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if (m_customToolbarWindow.pdfviewer1.LoadedDocument == null)
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{
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m_customToolbarWindow.txtCurrentPageIndex.Text = "0";
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m_customToolbarWindow.FitWidth.IsEnabled = false;
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m_customToolbarWindow.FitPage.IsEnabled = false;
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m_customToolbarWindow.Last.IsEnabled = false;
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m_customToolbarWindow.First.IsEnabled = false;
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m_customToolbarWindow.Previous.IsEnabled = false;
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m_customToolbarWindow.Next.IsEnabled = false;
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m_customToolbarWindow.Save.IsEnabled = false;
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m_customToolbarWindow.Print1.IsEnabled = false;
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m_customToolbarWindow.ZoomIn.IsEnabled = false;
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m_customToolbarWindow.ZoomOut.IsEnabled = false;
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m_customToolbarWindow.txtCurrentPageIndex.IsEnabled = false;
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m_customToolbarWindow.ZoomComboBox.IsEnabled = false;
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m_customToolbarWindow.FindText.IsEnabled = false;
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m_customToolbarWindow.pageSeparator.IsEnabled = false;
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m_customToolbarWindow.lblTotalPageCount.IsEnabled = false;
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m_customToolbarWindow.ZoomPercentage.IsEnabled = false;
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m_customToolbarWindow.Stamps.IsEnabled = false;
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}
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else
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{
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m_customToolbarWindow.lblTotalPageCount.Text = m_customToolbarWindow.pdfviewer1.PageCount.ToString();
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m_customToolbarWindow.ZoomComboBox.SelectedIndex = 2;
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}
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}
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public void Closed(object sender, EventArgs e)
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{
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m_customToolbarWindow.CustomStampContextMenu.PreviewMouseDown -= M_customStampMenu_PreviewMouseDown;
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m_customToolbarWindow.BrowseStamp.Click -= CustomStampBrowse_Click;
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UnWireEvents();
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m_customToolbarWindow.pdfviewer1.ShowToolbar = true;
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m_customToolbarWindow.pdfviewer1.Unload(true);
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}
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/// <summary>
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/// Occurs when the window size changed.
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/// </summary>
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public void Window_SizeChanged(object sender, SizeChangedEventArgs e)
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{
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if (m_customToolbarWindow != null)
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{
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m_customToolbarWindow.MyRibbon.BackStageButton.Visibility = Visibility.Collapsed;
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m_customToolbarWindow.file_tab.LauncherButton.Visibility = Visibility.Collapsed;
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m_customToolbarWindow.Navigation.LauncherButton.Visibility = Visibility.Collapsed;
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m_customToolbarWindow.Zoom.LauncherButton.Visibility = Visibility.Collapsed;
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m_customToolbarWindow.Size.LauncherButton.Visibility = Visibility.Collapsed;
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m_customToolbarWindow.find_text.LauncherButton.Visibility = Visibility.Collapsed;
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m_customToolbarWindow.Stamp.LauncherButton.Visibility = Visibility.Collapsed;
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}
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}
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private void BtnOpen_Click(object sender, RoutedEventArgs e)
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{
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OpenFileDialog dialog = new OpenFileDialog();
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dialog.Filter = "Pdf Files (.pdf)|*.pdf";
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dialog.ShowDialog();
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if (!string.IsNullOrEmpty(dialog.FileName))
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{
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LoadDocument(dialog.FileName);
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m_customToolbarWindow.txtCurrentPageIndex.Text = "1";
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m_customToolbarWindow.ribbonwindow.Title = dialog.SafeFileName;
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m_customToolbarWindow.ZoomComboBox.SelectedIndex = 2;
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m_customToolbarWindow.FitWidth.IsEnabled = true;
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m_customToolbarWindow.IsEnabled = true;
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m_customToolbarWindow.Last.IsEnabled = true;
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m_customToolbarWindow.First.IsEnabled = true;
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m_customToolbarWindow.Previous.IsEnabled = true;
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m_customToolbarWindow.Next.IsEnabled = true;
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m_customToolbarWindow.Save.IsEnabled = true;
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m_customToolbarWindow.Print1.IsEnabled = true;
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m_customToolbarWindow.ZoomIn.IsEnabled = true;
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m_customToolbarWindow.ZoomOut.IsEnabled = true;
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m_customToolbarWindow.txtCurrentPageIndex.IsEnabled = true;
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m_customToolbarWindow.ZoomComboBox.IsEnabled = true;
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m_customToolbarWindow.FindText.IsEnabled = true;
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m_customToolbarWindow.pageSeparator.IsEnabled = true;
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m_customToolbarWindow.lblTotalPageCount.IsEnabled = true;
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m_customToolbarWindow.ZoomPercentage.IsEnabled = true;
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m_customToolbarWindow.Stamps.IsEnabled = true;
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}
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m_customToolbarWindow.pdfviewer1.CurrentPageChanged += pdfviewer1_CurrentPageChanged;
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}
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private void Save_Click(object sender, RoutedEventArgs e)
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{
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if (m_customToolbarWindow.pdfviewer1.LoadedDocument != null)
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{
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PdfLoadedDocument ldoc = m_customToolbarWindow.pdfviewer1.LoadedDocument;
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SaveFileDialog save = new SaveFileDialog();
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save.Filter = "PDF Files (*.pdf)|*.pdf";
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save.FileName = m_fileName;
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if (save.ShowDialog() == true)
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{
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FileInfo saveFi = new FileInfo(save.FileName);
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if (save.FileName != string.Empty)
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{
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m_customToolbarWindow.pdfviewer1.LoadedDocument.Save(save.FileName);
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MessageBox.Show("File saved succesfully");
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}
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}
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}
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}
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private void OnItemSelect(string selectedItem)
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{
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if (selectedItem != null)
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{
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string[] zoomPercentage = selectedItem.ToString().Split(':');
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if (zoomPercentage[1] != "")
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{
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m_customToolbarWindow.pdfviewer1.ZoomTo(int.Parse(zoomPercentage[1]));
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m_customToolbarWindow.FitWidth.IsEnabled = true;
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m_customToolbarWindow.FitPage.IsEnabled = true;
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m_customToolbarWindow.ZoomOut.IsEnabled = true;
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m_customToolbarWindow.ZoomIn.IsEnabled = true;
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if (zoomPercentage[1].Equals("50"))
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{
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m_customToolbarWindow.ZoomOut.IsEnabled = false;
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m_customToolbarWindow.ZoomIn.IsEnabled = true;
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}
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if (zoomPercentage[1].Equals("400"))
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{
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m_customToolbarWindow.ZoomOut.IsEnabled = true;
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m_customToolbarWindow.ZoomIn.IsEnabled = false;
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}
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}
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}
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}
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private void FitPage_Click(object sender, RoutedEventArgs e)
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{
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if (m_customToolbarWindow.pdfviewer1.LoadedDocument != null)
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{
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m_customToolbarWindow.pdfviewer1.ZoomMode = Syncfusion.Windows.PdfViewer.ZoomMode.FitPage;
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m_customToolbarWindow.ZoomComboBox.Text = m_customToolbarWindow.pdfviewer1.ZoomPercentage.ToString();
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m_customToolbarWindow.ZoomIn.IsEnabled = true;
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m_customToolbarWindow.ZoomOut.IsEnabled = true;
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m_customToolbarWindow.FitWidth.IsEnabled = true;
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m_customToolbarWindow.FitPage.IsEnabled = false;
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}
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}
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private void FitWidth_Click(object sender, RoutedEventArgs e)
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{
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if (m_customToolbarWindow.pdfviewer1.LoadedDocument != null)
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{
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m_customToolbarWindow.pdfviewer1.ZoomMode = Syncfusion.Windows.PdfViewer.ZoomMode.FitWidth;
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m_customToolbarWindow.ZoomComboBox.Text = m_customToolbarWindow.pdfviewer1.ZoomPercentage.ToString();
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m_customToolbarWindow.ZoomIn.IsEnabled = true;
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m_customToolbarWindow.ZoomOut.IsEnabled = true;
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m_customToolbarWindow.FitWidth.IsEnabled = false;
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m_customToolbarWindow.FitPage.IsEnabled = true;
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}
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}
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private void FindText_Click(object sender, RoutedEventArgs e)
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{
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m_customToolbarWindow.pdfviewer1.ShowTextSearchBar();
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}
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private void CustomStamps_Click(object sender, RoutedEventArgs e)
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{
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m_customStampButton = sender as RibbonButton;
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m_customStampButton.ContextMenu.IsOpen = true;
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}
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private void CustomStampBrowse_Click(object sender, RoutedEventArgs e)
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{
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OpenFileDialog openFileDialog = new Microsoft.Win32.OpenFileDialog();
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openFileDialog.Multiselect = true;
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openFileDialog.Filter = "PNG Files(*.png)|*.png|JPEG Files(*.jpeg)|*.jpeg";
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openFileDialog.Title = "Select Image File";
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if (openFileDialog.ShowDialog().Value)
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{
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foreach (string m_fileName in openFileDialog.FileNames)
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{
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string fileType = System.IO.Path.GetExtension(m_fileName);
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fileType = fileType.ToLower();
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if (fileType == ".jpeg" || fileType == ".png")
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{
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if (m_customStampButton != null && m_customStampButton.ContextMenu != null && m_customToolbarWindow.CustomStampContextMenu != null)
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m_customToolbarWindow.CustomStampContextMenu.Items.Add(GetImage(m_fileName));
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}
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}
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MessageBox.Show("Selected image(s) are added to the custom stamps collection.", "Message", MessageBoxButton.OK, MessageBoxImage.Information);
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}
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}
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private System.Windows.Controls.Image GetImage(string filePath)
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{
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System.Windows.Controls.Image image = new System.Windows.Controls.Image();
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image.Source = new BitmapImage(new Uri(filePath, UriKind.RelativeOrAbsolute));
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ValidateImage(image);
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m_imageList.Add(image);
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return image;
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}
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Image GetImageFromFolder(string filePath)
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{
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System.Windows.Controls.Image image = new System.Windows.Controls.Image();
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BitmapImage bitmapImage = new BitmapImage();
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image.Source = bitmapImage;
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bitmapImage.BeginInit();
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bitmapImage.CacheOption = BitmapCacheOption.OnLoad;
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bitmapImage.StreamSource = GetFileStream(filePath);
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bitmapImage.EndInit();
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ValidateImage(image);
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m_imageList.Add(image);
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return image;
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}
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void ValidateImage(Image image)
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{
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image.Margin = new Thickness(5);
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if (image.Source.Width > 200f || image.Source.Height > 140f)
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{
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image.Stretch = Stretch.Fill;
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if (image.Source.Width > image.Source.Height)
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{
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float widthPercentage = 200f / (float)image.Source.Width;
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image.Width = image.Source.Width * widthPercentage;
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image.Height = image.Source.Height * widthPercentage;
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}
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else
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{
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float heightPercentage = 140f / (float)image.Source.Height;
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image.Width = image.Source.Width * heightPercentage;
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image.Height = image.Source.Height * heightPercentage;
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}
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}
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}
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private void M_customStampMenu_PreviewMouseDown(object sender, MouseButtonEventArgs e)
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{
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System.Windows.Controls.Image image = e.OriginalSource as System.Windows.Controls.Image;
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if (m_customToolbarWindow.pdfviewer1 != null && image != null)
|
||
|
|
{
|
||
|
|
m_customToolbarWindow.pdfviewer1.AnnotationMode = PdfDocumentView.PdfViewerAnnotationMode.Stamp;
|
||
|
|
if (m_customToolbarWindow.pdfviewer1.ToolbarSettings != null && m_customToolbarWindow.pdfviewer1.ToolbarSettings.StampAnnotations != null)
|
||
|
|
{
|
||
|
|
m_customToolbarWindow.pdfviewer1.ToolbarSettings.StampAnnotations.Clear();
|
||
|
|
System.Windows.Controls.Image selectedImage = new System.Windows.Controls.Image();
|
||
|
|
selectedImage.Source = image.Source;
|
||
|
|
if (selectedImage.Source.Width > selectedImage.Source.Height)
|
||
|
|
{
|
||
|
|
float widthPercentage = 200f / (float)selectedImage.Source.Width;
|
||
|
|
selectedImage.Width = selectedImage.Source.Width * widthPercentage;
|
||
|
|
selectedImage.Height = selectedImage.Source.Height * widthPercentage;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
float heightPercentage = 50f / (float)selectedImage.Source.Height;
|
||
|
|
selectedImage.Width = selectedImage.Source.Width * heightPercentage;
|
||
|
|
selectedImage.Height = selectedImage.Source.Height * heightPercentage;
|
||
|
|
}
|
||
|
|
if (selectedImage != null && selectedImage.Source != null)
|
||
|
|
m_customToolbarWindow.pdfviewer1.ToolbarSettings.StampAnnotations.Add(new PdfStampAnnotation(selectedImage));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
private void InitializeStamp()
|
||
|
|
{
|
||
|
|
m_customToolbarWindow.CustomStampContextMenu.PreviewMouseDown += M_customStampMenu_PreviewMouseDown;
|
||
|
|
m_customToolbarWindow.BrowseStamp.Click += CustomStampBrowse_Click;
|
||
|
|
m_customToolbarWindow.CustomStampContextMenu.Items.Add(GetImageFromFolder("pdfviewer/Approved.png"));
|
||
|
|
}
|
||
|
|
|
||
|
|
private void LoadDocument(string fileName)
|
||
|
|
{
|
||
|
|
FileInfo info = new FileInfo(fileName);
|
||
|
|
this.m_fileName = info.Name;
|
||
|
|
m_customToolbarWindow.pdfviewer1.Load(fileName);
|
||
|
|
m_customToolbarWindow.lblTotalPageCount.Text = m_customToolbarWindow.pdfviewer1.PageCount.ToString();
|
||
|
|
}
|
||
|
|
|
||
|
|
void pdfviewer1_CurrentPageChanged(object sender, EventArgs args)
|
||
|
|
{
|
||
|
|
m_customToolbarWindow.txtCurrentPageIndex.Text = m_customToolbarWindow.pdfviewer1.CurrentPageIndex.ToString();
|
||
|
|
if (m_customToolbarWindow.pdfviewer1.CurrentPage == 1)
|
||
|
|
{
|
||
|
|
m_customToolbarWindow.First.IsEnabled = false;
|
||
|
|
m_customToolbarWindow.Previous.IsEnabled = false;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
m_customToolbarWindow.First.IsEnabled = true;
|
||
|
|
m_customToolbarWindow.Previous.IsEnabled = true;
|
||
|
|
}
|
||
|
|
if (m_customToolbarWindow.pdfviewer1.CurrentPage == m_customToolbarWindow.pdfviewer1.LoadedDocument.Pages.Count)
|
||
|
|
{
|
||
|
|
m_customToolbarWindow.Last.IsEnabled = false;
|
||
|
|
m_customToolbarWindow.Next.IsEnabled = false;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
m_customToolbarWindow.Last.IsEnabled = true;
|
||
|
|
m_customToolbarWindow.Next.IsEnabled = true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void WireUpEvents()
|
||
|
|
{
|
||
|
|
m_customToolbarWindow.Save.Click += new RoutedEventHandler(Save_Click);
|
||
|
|
m_customToolbarWindow.FitPage.Click += new RoutedEventHandler(FitPage_Click);
|
||
|
|
m_customToolbarWindow.FitWidth.Click += new RoutedEventHandler(FitWidth_Click);
|
||
|
|
m_customToolbarWindow.FindText.Click += new RoutedEventHandler(FindText_Click);
|
||
|
|
m_customToolbarWindow.Stamps.Click += new RoutedEventHandler(CustomStamps_Click);
|
||
|
|
}
|
||
|
|
|
||
|
|
void UnWireEvents()
|
||
|
|
{
|
||
|
|
m_customToolbarWindow.Save.Click -= new RoutedEventHandler(Save_Click);
|
||
|
|
m_customToolbarWindow.FitPage.Click -= new RoutedEventHandler(FitPage_Click);
|
||
|
|
m_customToolbarWindow.FitWidth.Click -= new RoutedEventHandler(FitWidth_Click);
|
||
|
|
m_customToolbarWindow.Stamps.Click -= new RoutedEventHandler(CustomStamps_Click);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|