public PageThumbnailCollection(PdfModel pdfModel)
{
this.pdfModel = pdfModel;
this.renderPagesQueue = new Queue <int>();
this.recyclePagesQueue = new Queue <int>();
this.IsInitialized = false;
this.visibleRange = new ItemIndexRange(-1, 0);
}
/// <summary>
/// Initialize a new PDFModel instance from a PDF file.
/// </summary>
/// <param name="pdfStorageFile"></param>
/// <param name="dataFolder"></param>
/// <returns></returns>
public static async Task <PdfModel> LoadFromFile(StorageFile pdfStorageFile, StorageFolder dataFolder)
{
PdfModel pdfModel = new PdfModel(pdfStorageFile);
await pdfModel.InitializeComponents(dataFolder);
if (pdfModel.msPdf == null || pdfModel.sfPdf == null)
{
return(null);
}
return(pdfModel);
}
public static async Task<PdfModel> LoadFromFile(StorageFile pdfStorageFile)
{
PdfModel pdfModel = new PdfModel(pdfStorageFile);
// Load the file to Microsoft PDF document model
// The Microsoft model is used to render the PDF pages.
pdfModel.msPdf = await MSPdfModel.LoadFromFile(pdfStorageFile);
// Return null if failed to load the file to Microsoft model
if (pdfModel.msPdf == null) return null;
// Load the file to Syncfusion PDF document model
// The Syncfusion model is used to save ink annotations.
if (pdfModel.msPdf.isPasswordProtected)
{
pdfModel.sfPdf = await SFPdfModel.LoadFromFile(pdfStorageFile, pdfModel.msPdf.Password);
}
else pdfModel.sfPdf = await SFPdfModel.LoadFromFile(pdfStorageFile);
// Return null if failed to load the file to Syncfusion model
if (pdfModel.sfPdf == null) return null;
return pdfModel;
}
private async void LoadFile(StorageFile pdfFile)
{
this.fileLoadingWatch = new System.Diagnostics.Stopwatch();
this.fileLoadingWatch.Start();
if (this.pageCount > 0 && this.imagePanel.Children.Count >= this.pageCount)
{
AppEventSource.Log.Warn("ViewerPage: Viewer not initialized correctly.");
return;
}
AppEventSource.Log.Info("ViewerPage: Loading file: " + this.pdfStorageFile.Name);
// Update UI and Display loading
this.fullScreenCover.Visibility = Visibility.Visible;
this.fullScreenMessage.Text = "Loading...";
this.filenameTextBlock.Text = this.pdfStorageFile.Name;
// Add file the future access list
this.futureAccessToken = StorageApplicationPermissions.FutureAccessList.Add(pdfFile);
// Save session state in suspension manager
SuspensionManager.sessionState = new SessionState(this.futureAccessToken);
// Load Pdf file
this.pdfModel = await PdfModel.LoadFromFile(pdfFile);
// Notify the user and return to main page if failed to load the file.
if (this.pdfModel == null)
{
// Currently, exceptions and notifications are handled within the
// pdfModel /MSPdfModel/SFPdfModel class
//App.NotifyUser(typeof(ViewerPage), "Failed to open the file.", true);
this.CloseAllViews();
return;
}
// Check future access list
await CheckFutureAccessList();
// Create local data folder, if not exist
this.dataFolder = await ApplicationData.Current.LocalFolder.CreateFolderAsync(this.futureAccessToken, CreationCollisionOption.OpenIfExists);
AppEventSource.Log.Info("ViewerPage: Finished loading the file in " + fileLoadingWatch.Elapsed.TotalSeconds.ToString());
// Total number of pages
this.pageCount = pdfModel.PageCount();
AppEventSource.Log.Debug("ViewerPage: Total pages: " + this.pageCount.ToString());
// Zoom the first page to fit the viewer window width
ResetViewer();
// Load drawing preference
await LoadDrawingPreference();
// Initialize thumbnails collection
this.pageThumbnails = new PageThumbnailCollection(this.pdfModel.PdfDoc);
// Render the first page
AddBlankImage(1);
await AddPageImage(1, (uint)(this.scrollViewer.ActualWidth));
// Add blank pages for the rest of the file using the initialization timer
this.initializationTimer.Start();
}
public static async Task <InkingManager> InitializeInking(StorageFolder dataFolder, PdfModel pdfModel)
{
InkingManager inkManager = new InkingManager(dataFolder);
inkManager.inAppInking = await InkingInApp.InitializeInking(dataFolder);
inkManager.pdfModel = pdfModel;
return(inkManager);
}
