kmpdfkit_demo/compdfkit_demo_windows/compdfkit/viewer-ctrl-demo/MainWindow.xaml.cs

using compdfkit_tools.PDFControl;
using compdfkit_tools.PDFControlUI;
using ComPDFKitViewer.PdfViewer;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Controls.Primitives;

namespace viewer_ctrl_demo
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        private CPDFViewer pdfViewer;
        private double[] zoomLevel = { 1.00f, 8f, 12f, 25, 33f, 50, 66f, 75, 100, 125, 150, 200, 300, 400, 600, 800, 1000 };
        public MainWindow()
        {
            InitializeComponent();
            TitleBarControl.Loaded += TitleBarControl_Loaded;

            LoadDefaultDocument();
        }

        private void LoadDocument()
        {
            pdfViewer.Load();
            PDFGrid.Child = pdfViewer;
            pdfViewer.MouseWheelZoomHandler -= PdfViewer_MouseWheelZoomHandler;
            pdfViewer.MouseWheelZoomHandler += PdfViewer_MouseWheelZoomHandler;

            CPDFScalingControl.InitWithPDFViewer(pdfViewer);
            CPDFPageTurningControl.InitWithPDFViewer(pdfViewer);
            CPDFViewModeControl.InitWithPDFViewer(pdfViewer);
            CPDFDrawModeControl.InitWithPDFViewer(pdfViewer);

            UIElement currentBotaTool = GetBotaTool();
            if (currentBotaTool is CPDFSearchControl)
            {
                ((CPDFSearchControl)currentBotaTool).InitWithPDFViewer(pdfViewer);
            }

            if (currentBotaTool is CPDFThumbnailControl)
            {
                ((CPDFThumbnailControl)currentBotaTool).InitWithPDFViewer(pdfViewer);
                ((CPDFThumbnailControl)currentBotaTool).ThumbLoaded = false;
                ((CPDFThumbnailControl)currentBotaTool).LoadThumb();
            }

            if (currentBotaTool is CPDFBookmarkControl)
            {
                ((CPDFBookmarkControl)currentBotaTool).InitWithPDFViewer(pdfViewer);
                ((CPDFBookmarkControl)currentBotaTool).LoadBookmark();
            }
        }

        private void PdfViewer_MouseWheelZoomHandler(object sender, bool e)
        {
            double newZoom = CheckZoomLevel(pdfViewer.ZoomFactor + (e ? 0.01 : -0.01), e);
            pdfViewer.Zoom(newZoom);
        }

        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 LoadDefaultDocument()
        {
            string defaultFilePath = "developer_guide_windows.pdf";
            pdfViewer = new CPDFViewer();
            pdfViewer.InitDocument(defaultFilePath);
            LoadDocument();
        }

        private void TitleBarControl_Loaded(object sender, RoutedEventArgs e)
        {
            TitleBarControl.OpenFileEvent += TitleBarControl_OpenFileEvent;
        }

        private void TitleBarControl_OpenFileEvent(object sender, string filePath)
        {
            pdfViewer?.CloseDocument();
            pdfViewer = new CPDFViewer();
            pdfViewer.InitDocument(filePath);
            LoadDocument();
        }

        /// <summary>
        /// 搜索工具点击处理
        /// </summary>
        private void SearchToolButton_Click(object sender, RoutedEventArgs e)
        {
            UIElement botaTool = GetBotaTool();
            if (botaTool == null || !(botaTool is CPDFSearchControl))
            {
                CPDFSearchControl searchControl = new CPDFSearchControl();
                if (pdfViewer != null && pdfViewer.Document != null)
                {
                    searchControl.InitWithPDFViewer(pdfViewer);
                }
                SetBotaTool(searchControl);
            }
            ExpandTool(SearchToolButton.IsChecked == true);
            ClearToolState(SearchToolButton);
        }

        /// <summary>
        /// 缩略图列表点击处理
        /// </summary>
        private void ThumbToolButton_Click(object sender, RoutedEventArgs e)
        {
            UIElement botaTool = GetBotaTool();
            if (botaTool == null || !(botaTool is CPDFThumbnailControl))
            {
                CPDFThumbnailControl thumbControl = new CPDFThumbnailControl();

                if (pdfViewer != null && pdfViewer.Document != null)
                {
                    thumbControl.InitWithPDFViewer(pdfViewer);
                    thumbControl.LoadThumb();
                }
                SetBotaTool(thumbControl);
            }
            ExpandTool(ThumbToolButton.IsChecked == true);
            ClearToolState(ThumbToolButton);
        }

        /// <summary>
        /// 书签列表点击处理
        /// </summary>
        private void BookmarkToolButtonn_Click(object sender, RoutedEventArgs e)
        {
            UIElement botaTool = GetBotaTool();
            if (botaTool == null || !(botaTool is CPDFBookmarkControl))
            {
                CPDFBookmarkControl bookmarkControl = new CPDFBookmarkControl();

                if (pdfViewer != null && pdfViewer.Document != null)
                {
                    bookmarkControl.InitWithPDFViewer(pdfViewer);
                    bookmarkControl.LoadBookmark();
                }
                SetBotaTool(bookmarkControl);
            }
            ExpandTool(BookmarkToolButton.IsChecked == true);
            ClearToolState(BookmarkToolButton);
        }

        /// <summary>
        /// 大纲列表处理
        /// </summary>
        private void OutlineToolButton_Click(object sender, RoutedEventArgs e)
        {
            UIElement botaTool = GetBotaTool();
            if (botaTool == null||!(botaTool is CPDFOutlineControl))
            {
                CPDFOutlineControl outlineControl = new CPDFOutlineControl();

                if (pdfViewer != null && pdfViewer.Document != null)
                {
                    outlineControl.InitWithPDFViewer(pdfViewer);
                }
                SetBotaTool(outlineControl);
            }
            ExpandTool(OutlineToolButton.IsChecked == true);
            ClearToolState(OutlineToolButton);

        }
        /// <summary>
        /// 设置Bota工具内容
        /// </summary>
        /// <param name="newChild"></param>
        private void SetBotaTool(UIElement newChild)
        {
            BotaToolContainer.Child = newChild;
        }

        /// <summary>
        /// 获取Bota工具
        /// </summary>
        /// <returns></returns>
        private UIElement GetBotaTool()
        {
            return BotaToolContainer.Child;
        }

        /// <summary>
        /// 展开Bota工具
        /// </summary>
        /// <param name="isExpand"></param>
        private void ExpandTool(bool isExpand)
        {
            if(isExpand)
            {
                BodyGrid.ColumnDefinitions[1].Width = new GridLength(300);
            }
            else
            {
                BodyGrid.ColumnDefinitions[1].Width = new GridLength(0);
            }
            BotaToolContainer.Visibility = isExpand ? Visibility.Visible : Visibility.Collapsed;
            Splitter.Visibility=isExpand ? Visibility.Visible : Visibility.Collapsed;
        }

        /// <summary>
        /// 清除左边工具栏状态
        /// </summary>
        private void ClearToolState(UIElement ignoreTool)
        {
            foreach (UIElement child in BotaSideTool.Children)
            {
                if (child != ignoreTool && child is ToggleButton buttonTool)
                {
                    buttonTool.IsChecked = false;
                }
            }
        }


        private void BotaButton_Click(object sender, RoutedEventArgs e)
        {
            UIElement botaTool = GetBotaTool();
            if (botaTool == null)
            {
                CPDFBOTABarControl pdfBOTABarControl = new CPDFBOTABarControl(BOTATools.Bookmark|BOTATools.Outline|BOTATools.Thumbnail|BOTATools.Search);

                if (pdfViewer != null && pdfViewer.Document != null)
                {
                    pdfBOTABarControl.InitWithPDFViewer(pdfViewer);
                }
                SetBotaTool(pdfBOTABarControl);
            }
            ExpandTool(BotaButton.IsChecked == true);
            ClearToolState(BotaButton);
        }

        private void ShowPDFInfoDialog()
        {
            CPDFInfoControl pdfInfoControl = new CPDFInfoControl();
            pdfInfoControl.InitWithPDFViewer(pdfViewer);
            Window dialog = new Window
            {
                Title = "PDF Info", // 设置弹出窗口的标题
                Content = pdfInfoControl, // 将UserControl添加到弹出窗口中
                Width = 600, // 设置弹出窗口的宽度
                Height = 300, // 设置弹出窗口的高度
                ResizeMode = ResizeMode.NoResize, // 禁止用户调整弹出窗口的大小
                WindowStartupLocation = WindowStartupLocation.CenterScreen, // 将弹出窗口显示在屏幕中央
                WindowStyle = WindowStyle.ToolWindow, // 设置弹出窗口的样式
                Owner = Application.Current.MainWindow // 将主窗口设置为弹出窗口的拥有者
            };
            dialog.ShowDialog(); // 显示弹出窗口
        }

        private void PDFInfoButton_Click(object sender, RoutedEventArgs e)
        {
            ShowPDFInfoDialog();
        }
    }
}