PDFOffice_Windows_exe/PDF Office/ViewModels/Dialog/ServiceDialog/SubscriptionDialogViewModel.cs

using ComPDFKit.PDFWatermark;
using ComPDFKitViewer.PdfViewer;
using PDF_Master.Helper;
using PDF_Master.Model;
using PDF_Master.Model.EditTools.Watermark;
using PDF_Master.Properties;
using Prism.Commands;
using Prism.Mvvm;
using Prism.Regions;
using Prism.Services.Dialogs;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Media.Imaging;
using System.Windows.Resources;

namespace PDF_Master.ViewModels.Dialog.ServiceDialog
{
    public class SubscriptionDialogViewModel : BindableBase, IDialogAware
    {
        public string Title => "";
        private WatermarkInfo watermarkInfo;
        private CPDFWatermark watermark;
        private ViewContentViewModel viewContentViewModel;
        public event Action<IDialogResult> RequestClose;

        #region 文案



        #endregion

        /// <summary>
        /// 价格优惠bord
        /// </summary>
        private Visibility _Vishalfprice = Visibility.Visible;

        public Visibility Vishalfprice
        {
            get { return _Vishalfprice; }
            set
            {
                SetProperty(ref _Vishalfprice, value);
            }
        }


        /// <summary>
        /// 价格优惠
        /// </summary>
        private string _Textprice = "$39.99/year";

        public string Textprice
        {
            get { return _Textprice; }
            set
            {
                SetProperty(ref _Textprice, value);
            }
        }




        private string _uristore = "https://www.pdfreaderpro.com/windows/store/permanent";
        public string Uristore
        {
            get { return _uristore; }
            set
            {
                SetProperty(ref _uristore, value);

            }
        }

        public DelegateCommand LinkstoreCommand { get; set; }
         public DelegateCommand WarermarkSavingCommand { get; set; }
        public DelegateCommand RefreshCommand { get; set; }
        private void InitString()
        {

           
        }


        public SubscriptionDialogViewModel(IRegionManager regionManager, IDialogService dialogService)
        {
            RefreshCommand = new DelegateCommand(Refresh);
            LinkstoreCommand = new DelegateCommand(Linkstore);
            WarermarkSavingCommand = new DelegateCommand(WarermarkSaving);
            InitString();
            if (Settings.Default.UserDate.subscribestatus == 2)
            {
                Textprice = "$79.99/year";
                Vishalfprice = Visibility.Collapsed;
            }

            else
            {

                Textprice = "$39.99/year";
                Vishalfprice = Visibility.Visible;
            }

        }
        private void Linkstore()
        {

            Process.Start(new ProcessStartInfo(Uristore));
        }

        /// <summary>
        /// 水印保存
        /// </summary>
        private void WarermarkSaving()
        {
            CPDFViewer cPDFViewer = new CPDFViewer();
            
            Uri resourceUri = new Uri("pack://application:,,,/PDF Master;component/Resources/Service/Warermark.png");
            StreamResourceInfo resourceInfo = Application.GetResourceStream(resourceUri);
                if (resourceInfo != null)
                {
                    using (Stream stream = resourceInfo.Stream)
                    {
                        cPDFViewer = viewContentViewModel.PDFViewer;
                        BitmapFrame frame = null;
                        int width = 0;
                        int height = 0;
                        BitmapDecoder decoder = BitmapDecoder.Create(stream, BitmapCreateOptions.None, BitmapCacheOption.Default);
                        if (decoder != null && decoder.Frames.Count > 0)
                        {
                            frame = decoder.Frames[0];
                        }
                        if (frame != null)
                        {
                            var ImageArray = new byte[frame.PixelWidth * frame.PixelHeight * 4];
                            width = frame.PixelWidth;
                            height = frame.PixelHeight;
                            frame.CopyPixels(ImageArray, frame.PixelWidth * 4, 0);
                            watermark = cPDFViewer.Document.InitWatermark(C_Watermark_Type.WATERMARK_TYPE_IMG);
                            watermark.SetImage(ImageArray, width, height);
                            watermark.SetScale(1);
                            watermark.SetRotation(0);
                            watermark.SetOpacity(255);
                            watermark.SetFront(true);
                            watermark.SetVertalign(C_Watermark_Vertalign.WATERMARK_VERTALIGN_TOP);
                            watermark.SetHorizalign(C_Watermark_Horizalign.WATERMARK_HORIZALIGN_LEFT);
                            watermark.SetFullScreen(false);
                            watermark.SetVertOffset(0);
                            watermark.SetHorizOffset(0);
                            watermark.SetHorizontalSpacing(0);
                            watermark.SetVerticalSpacing(0);
                        string setpages = $"0-{cPDFViewer.Document.PageCount.ToString()}";
                            watermark.SetPages(setpages);
                            watermark.UpdateWatermark();
                        cPDFViewer.Document.ReleasePages();
                        cPDFViewer.ReloadDocument();
                        viewContentViewModel.saveAsFile(null,cPDFViewer);
                        Close();

                    }
                   
                }

               
            }




         

        }

        /// <summary>
        /// 刷新订阅状态按钮
        /// </summary>
        private void Refresh()
        {

            if (Settings.Default.AppProperties.LoginToken != "")
            {
                if (ServiceHelper.GetUser() == "401")
                {
                    App.mainWindowViewModel.UserVis = Visibility.Collapsed;
                    App.mainWindowViewModel.LoginVis = Visibility.Visible;
                    App.mainWindowViewModel.OphVis = Visibility.Visible;

                    if (Settings.Default.UserDate.IsLoginoff == false)
                    {
                        App.mainWindowViewModel.OpenLoginoff();
                        Settings.Default.UserDate.IsLoginoff = true;
                        Settings.Default.Save();
                    }
                }
            }
            else
            {
                App.mainWindowViewModel.UserVis = Visibility.Collapsed;
                App.mainWindowViewModel.LoginVis = Visibility.Visible;
                App.mainWindowViewModel.OphVis = Visibility.Visible;
            }


            if (Settings.Default.UserDate.subscribestatus == 1&&App.IsLogin == true)
            {
                Close();
            }
        }








        public void Close()
        {
            RequestClose?.Invoke(new Prism.Services.Dialogs.DialogResult(ButtonResult.Cancel));
        }

        public bool CanCloseDialog()
        {
            return true;
        }

        public void OnDialogClosed()
        {

        }

        public void OnDialogOpened(IDialogParameters parameters)
        {
            parameters.TryGetValue<ViewContentViewModel>(ParameterNames.ViewContentViewModel, out viewContentViewModel);

        }

    }   
}