PDFOffice_Windows_exe/PDF Office/ViewModels/Tools/TextEditToolContentViewModel.cs

using Prism.Commands;
using Prism.Mvvm;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Media;
using System.Windows;
using PDF_Office.Model.PropertyPanel.AnnotPanel;
using System.Windows.Controls;
using Prism.Regions;
using ComPDFKitViewer.PdfViewer;
using PDF_Office.Model;
using Microsoft.Win32;
using PDF_Office.CustomControl;

namespace PDF_Office.ViewModels.Tools
{
    public class TextEditToolContentViewModel: BindableBase, INavigationAware
    {
        #region Command
        public DelegateCommand<object> AddContentCommand { get; set; }

        #endregion
        public TextEditToolContentViewModel()
        {
            InitCommand();
        }

        private void InitCommand()
        {
            AddContentCommand = new DelegateCommand<object>(AddContent);
        }

        public void AddContent(object obj)
        {
            if (PDFViewer == null || obj == null || obj as CustomIconToggleBtn == null) return;

            var btn = obj as CustomIconToggleBtn;

            if(btn.IsChecked == true)
            {
                if (btn.Tag.ToString() == "Text")
                {
                    PDFViewer.SetPDFEditCreateType(ComPDFKit.PDFPage.CPDFEditType.EditText);
                }
                else
                {
                    OpenFileDialog openFileDialog = new OpenFileDialog();
                    openFileDialog.Filter = "png|*.png;|Image|*.gif;*.jpg;*.jpeg;*.bmp;*.jfif;*.png;";
                    openFileDialog.Multiselect = true;
                    if ((bool)openFileDialog.ShowDialog())
                    {
                        if (string.IsNullOrEmpty(openFileDialog.FileName) == false)
                        {
                            PDFViewer.SetPDFEditCreateType(ComPDFKit.PDFPage.CPDFEditType.EditImage);
                            PDFViewer.AddPDFEditImage(openFileDialog.FileName);
                        }
                    }
                    btn.IsChecked = false;

                }
            }
            else
            {
                PDFViewer.SetPDFEditCreateType(ComPDFKit.PDFPage.CPDFEditType.None);
                PDFViewer.SetMouseMode(MouseModes.PDFEdit);
            }


        }

        public void OnNavigatedTo(NavigationContext navigationContext)
        {

        }

        public bool IsNavigationTarget(NavigationContext navigationContext)
        {
            return true;
        }

        private CPDFViewer PDFViewer;
        public void OnNavigatedFrom(NavigationContext navigationContext)
        {
            navigationContext.Parameters.TryGetValue<CPDFViewer>(ParameterNames.PDFViewer, out PDFViewer);
            if (PDFViewer != null)
            {
             

            }
        }

    }
}