/// <summary>
/// Gets the image from the downloaded stream
/// </summary>
/// <param name="pageSizesList">List of page sizes</param>
/// <param name="allPages">Report that needs to be printed</param>
/// <returns>Returns the images</returns>
public static List <Metafile> GetEmfImagesToPePrinted(List <int> pageSizesList, byte[] allPages)
{
List <Metafile> emfImages = null;
Debug.Assert(pageSizesList != null && pageSizesList.Count > 0, "Parameter 'pageSizesList' must not be null or empty.");
// everything matches up, so split up the array into individual pages
emfImages = MetafileHelper.SplitByteArrayIntoPages(allPages, pageSizesList);
if (emfImages == null || emfImages.Count == 0)
{
throw new ArgumentNullException(Resources.NoEmfImage);
}
return(emfImages);
}
/// <summary>
/// Prints the specified document.
/// </summary>
/// <param name="document">The document.</param>
public bool Print(IDocumentContract document)
{
var documentContract = document as MetafileDocumentContract ?? throw new ArgumentException("Invalide type", nameof(document));
if (documentContract.PageSizes == null || documentContract.PageSizes.Count() == 0)
{
throw new ArgumentNullException(Resources.NoPageSizes);
}
var pageSizesList = documentContract.PageSizes.ToList();
this.emfImages = MetafileHelper.GetEmfImagesToPePrinted(pageSizesList, documentContract.Contents);
if (this.emfImages == null || this.emfImages.Count == 0)
{
// Issue an instrumentation error and return as there is nothing to print
throw new ArgumentException(Resources.NoMetafilesToPrint);
}
// Now determine the printer settings necessary
PageSettings pageSettingsOfPrinter = null;
var pageSettingsHelper = new PageSettingsHelper();
if (!string.IsNullOrWhiteSpace(documentContract.Settings))
{
pageSettingsHelper.IsLandscapeSetOnReportDesign = this.emfImages[0].Height < this.emfImages[0].Width;
try
{
pageSettingsOfPrinter = pageSettingsHelper.ProcessPageSettings(documentContract.Settings);
}
catch (Exception)
{
// TODO Error log Resources.UnableToInitializePrinterSettings
return(false);
}
}
// PageSettings returned after processing should not be null. Throw if it is.
if (pageSettingsOfPrinter == null)
{
throw new ArgumentNullException(Resources.NoPageSettings);
}
// Send the print job to printer with the pagesettings obtained
int retryCount = 1;
try
{
while (retryCount <= Constants.MaximumRetry)
{
try
{
this.currentPageNumber = 0;
using (var printDocument = new PrintDocument())
{
printDocument.DocumentName = documentContract.Name;
printDocument.DefaultPageSettings = pageSettingsOfPrinter;
printDocument.PrinterSettings = pageSettingsOfPrinter.PrinterSettings;
printDocument.PrintPage += this.PrintEachPage;
// use standard print controller instead of print controller with status dialog.
printDocument.PrintController = new StandardPrintController();
printDocument.Print();
}
break;
}
catch (InvalidPrinterException)
{
if (retryCount < Constants.MaximumRetry)
{
retryCount++;
}
else
{
string message = string.Format(CultureInfo.InvariantCulture, Resources.InvalidPrinter, pageSettingsOfPrinter.PrinterSettings.PrinterName);
//TODO Error log
return(false);
}
}
}
}
finally
{
if (this.emfImages != null && this.emfImages.Count > 0)
{
foreach (var page in this.emfImages)
{
if (page != null)
{
page.Dispose();
}
}
}
}
return(true);
}
