kmpdfkit_demo/Demo/Examples/Compdfkit_Tools/Edit/ContentEditCOntrol/ContentEditControl.xaml.cs

using ComPDFKit.PDFDocument;
using ComPDFKit.PDFPage;
using ComPDFKit.PDFPage.Edit;
using Compdfkit_Tools.Edit;
using ComPDFKitViewer;
using ComPDFKitViewer.PdfViewer;
using Microsoft.Win32;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Controls.Primitives;
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 Compdfkit_Tools.PDFControl
{
    /// <summary>
    /// ContentEditControl.xaml 的交互逻辑
    /// </summary>
    public partial class ContentEditControl : UserControl
    {
        #region Property
        public PDFViewControl PdfViewControl = new PDFViewControl();
        public PDFContentEditControl pdfContentEditControl = new PDFContentEditControl();

        private double[] zoomLevelList = { 1f, 8f, 12f, 25, 33f, 50, 66f, 75, 100, 125, 150, 200, 300, 400, 600, 800, 1000 };

        private PDFEditEvent pdfTextCreateParam;
        private PDFEditEvent lastPDFEditEvent = null;

        private KeyEventHandler KeyDownHandler;
        public event PropertyChangedEventHandler PropertyChanged;
        public ICommand CloseTabCommand;
        public ICommand ExpandPropertyPanelCommand;

        public bool CanUndo
        {
            get
            {
                if (PdfViewControl != null && PdfViewControl.PDFView != null)
                {
                    return PdfViewControl.PDFView.UndoManager.CanUndo;
                }
                return false;
            }
        }

        public bool CanRedo
        {
            get
            {
                if (PdfViewControl != null && PdfViewControl.PDFView != null)
                {
                    return PdfViewControl.PDFView.UndoManager.CanRedo;
                }

                return false;
            }
        }

        private bool CanSave
        {
            get
            {
                if (PdfViewControl != null && PdfViewControl.PDFView != null)
                {
                    return PdfViewControl.PDFView.UndoManager.CanSave;
                }

                return false;
            }
        }

        public event EventHandler<bool> OnCanSaveChanged;
        public event EventHandler OnAnnotEditHandler;

        #endregion

        public ContentEditControl()
        {
            InitializeComponent();
        }

        private void ClearPDFEditState(ToggleButton ignoreBtn = null)
        {
            List<ToggleButton> clearBtnList = new List<ToggleButton>()
            {
                PDFTextEditButton,
                PDFImageEditButton
            };

            foreach (ToggleButton item in clearBtnList)
            {
                if (ignoreBtn == item)
                {
                    continue;
                }
                item.IsChecked = false;
            }
        }
         
        private void PDFTextEditButton_Click(object sender, RoutedEventArgs e)
        {
            ToggleButton senderBtn = sender as ToggleButton;
            if (senderBtn != null && PdfViewControl != null)
            {
                ClearPDFEditState(senderBtn);
                if (senderBtn.IsChecked == true)
                {
                    PDFEditEvent createParam = new PDFEditEvent();
                    createParam.EditType = CPDFEditType.EditText;
                    createParam.IsBold = false;
                    createParam.IsItalic = false;
                    createParam.FontSize = 14;
                    createParam.FontName = "Helvetica";
                    createParam.FontColor = Colors.Black;
                    createParam.TextAlign = TextAlignType.AlignLeft;
                    createParam.Transparency = 255;

                    if (PdfViewControl.PDFView != null && PdfViewControl.PDFView.Document != null)
                    {
                        CPDFDocument pdfDoc = PdfViewControl.PDFView.Document;
                        if (pdfDoc.PageCount > 0)
                        {
                            CPDFPage pdfPage = pdfDoc.PageAtIndex(0);
                            CPDFEditPage editPage = pdfPage.GetEditPage();
                            editPage.BeginEdit(CPDFEditType.EditText);
                            createParam.SystemFontNameList.AddRange(editPage.GetFontList());
                            editPage.EndEdit();
                        }
                    }

                    PdfViewControl.PDFView?.SetMouseMode(MouseModes.PanTool);
                    PdfViewControl.PDFView?.SetPDFEditType(CPDFEditType.EditText);
                    PdfViewControl.PDFView?.SetPDFEditCreateType(CPDFEditType.EditText);
                    PdfViewControl.PDFView?.SetMouseMode(MouseModes.PDFEdit);
                    PdfViewControl.PDFView?.ReloadDocument();

                    PdfViewControl.PDFView?.SetPDFEditParam(createParam);
                    pdfContentEditControl.SetPDFTextEditData(createParam);
                    ExpandRightPropertyPanel(pdfContentEditControl, Visibility.Visible);
                    pdfTextCreateParam = createParam;
                }
                else
                {
                    PdfViewControl.PDFView?.SetPDFEditCreateType(CPDFEditType.None);
                    PdfViewControl.PDFView?.SetPDFEditType(CPDFEditType.EditImage | CPDFEditType.EditText);
                    PdfViewControl.PDFView?.SetMouseMode(MouseModes.PDFEdit);
                    PdfViewControl.PDFView?.ReloadDocument();
                    pdfContentEditControl.ClearContentControl();
                    ExpandRightPropertyPanel(null, Visibility.Collapsed);
                }
            }

        }

        private void PDFImageEditButton_Click(object sender, RoutedEventArgs e)
        {
            ToggleButton senderBtn = sender as ToggleButton;
            if (senderBtn != null && PdfViewControl != null)
            {
                senderBtn.IsChecked = false;
                OpenFileDialog openFileDialog = new OpenFileDialog();
                openFileDialog.Filter = "Image Files(*.jpg;*.jpeg;*.png;*.bmp)|*.jpg;*.jpeg;*.png;*.bmp;";
                if (openFileDialog.ShowDialog() == true)
                {
                    ClearPDFEditState(senderBtn);
                    PdfViewControl.PDFView?.ClearSelectPDFEdit();
                    PdfViewControl.PDFView?.SetPDFEditType(CPDFEditType.EditImage | CPDFEditType.EditText);
                    PdfViewControl.PDFView?.SetMouseMode(MouseModes.PDFEdit);
                    PdfViewControl.PDFView?.ReloadDocument();
                     
                    PdfViewControl.PDFView?.SetPDFEditCreateType(CPDFEditType.EditImage);
                    PdfViewControl.PDFView?.AddPDFEditImage(openFileDialog.FileName); 
                }
            }
        }

        public void ExpandLeftPanel(bool isExpand)
        {
            BotaContainer.Visibility = isExpand ? Visibility.Visible : Visibility.Collapsed;
            Splitter.Visibility = isExpand ? Visibility.Visible : Visibility.Collapsed;
            if (isExpand)
            {
                BodyGrid.ColumnDefinitions[0].Width = new GridLength(320);
                BodyGrid.ColumnDefinitions[1].Width = new GridLength(15);
            }
            else
            {
                BodyGrid.ColumnDefinitions[0].Width = new GridLength(0);
                BodyGrid.ColumnDefinitions[1].Width = new GridLength(0);
            }
        }

        private void UndoBtn_Click(object sender, RoutedEventArgs e)
        {

        }

        private void RedoBtn_Click(object sender, RoutedEventArgs e)
        {

        }

        public void SetViewSettings(Visibility visibility, CPDFDisplaySettingsControl displaySettingsControl = null)
        {
            this.PropertyContainer.Child = displaySettingsControl;
            this.PropertyContainer.Visibility = visibility;
        }

        public void SetBOTAContainer(CPDFBOTABarControl botaControl)
        {
            this.BotaContainer.Child = botaControl;
        }

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

        public void ExpandRightPropertyPanel(UIElement propertytPanel, Visibility visible)
        {
            PropertyContainer.Width = 260;
            PropertyContainer.Child = propertytPanel;
            PropertyContainer.Visibility = visible;
        }

        public void InitWithPDFViewer(CPDFViewer pdfViewer)
        {
            PdfViewControl.PDFView = pdfViewer;
            PDFGrid.Child = PdfViewControl;
            FloatPageTool.InitWithPDFViewer(pdfViewer);
            pdfContentEditControl.InitWithPDFViewer(pdfViewer);
            PdfViewControl.PDFView.PDFEditActiveHandler -= PDFView_PDFEditActiveHandler; 
            PdfViewControl.PDFView.PDFEditActiveHandler += PDFView_PDFEditActiveHandler;
            DataContext = this;
        }

        /// <summary>
        /// Text and Image Selected Event
        /// </summary>
        private void PDFView_PDFEditActiveHandler(object sender, ComPDFKitViewer.PDFEditEvent e)
        {
            lastPDFEditEvent = e; 

            if (e == null)
            {
                PropertyContainer.Child = pdfContentEditControl;

                if (pdfTextCreateParam != null && PdfViewControl != null && PdfViewControl.PDFView != null)
                {
                    if (PdfViewControl.PDFView.GetPDFEditCreateType() == CPDFEditType.EditText)
                    {
                        pdfContentEditControl.SetPDFTextEditData(pdfTextCreateParam);
                    }
                    else if (PdfViewControl.PDFView.GetPDFEditCreateType() == CPDFEditType.None)
                    {
                        pdfContentEditControl.ClearContentControl();

                    }
                }
                else
                {
                    pdfContentEditControl.ClearContentControl();
                }
                return;
            }

            if (e.EditType == CPDFEditType.EditText)
            {
                pdfContentEditControl.SetPDFTextEditData(e, true);
                return;
            }

            if (e.EditType == CPDFEditType.EditImage && PdfViewControl != null)
            {
                UIElement pageView = sender as UIElement;
                if (pageView != null)
                {
                    pageView.MouseLeftButtonUp += PageView_MouseLeftButtonUp;
                }
                pdfContentEditControl.SetPDFImageEditData(e);
                return;
            }
        }

        private void PageView_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
        {
            UIElement pageView = sender as UIElement;
            if (pageView != null)
            {
                pageView.MouseLeftButtonUp -= PageView_MouseLeftButtonUp;
            }
            if (lastPDFEditEvent != null && lastPDFEditEvent.EditType == CPDFEditType.EditImage)
            {
                pdfContentEditControl.SetPDFImageEditData(lastPDFEditEvent);
            }
        }
    }
}