private void OnPageChanged()
{
// Ticket "Demo": Wenn das nicht gemacht wird und beim PrintPreviewWindow sehr schnell die Page-Orientation
// geändert wird, kommt es im PrimtLayouter.SetMainContent zu einer Exception, da der mainContent
// noch nicht wieder abgehängt ist.
if (_xpsDocumentGenerator != null)
_xpsDocumentGenerator.Dispose();
int width, height;
SelectedPaperFormat.PaperFormat.GetWidthAndHeight(
SelectedPaperOrientation.PaperOrientation, out width, out height);
_xpsDocumentGenerator = new XpsDocumentGenerator(
_mainPrintContent,
_additionalPrintContent,
_viewDrawingState,
width,
height,
SelectedPageMargin);
_xpsDocumentGenerator.PrintingFinished += () =>
{
Document = _xpsDocumentGenerator.PrintedDocument;
};
Document = TextDocumentGenerator.CreateDocument(width, height, MlResources.DocumentIsBeingGenerated);
_xpsDocumentGenerator.Print();
}
public void Print()
{
if (_xpsDocumentGenerator != null)
throw new InvalidOperationException("Cannot print twice!");
_printDialog = new PrintDialog();
_printDialog.PrintTicket.PageOrientation = PageOrientation.Landscape;
if (_printDialog.ShowDialog() != true)
return;
var width = (int)_printDialog.PrintableAreaWidth;
var height = (int)_printDialog.PrintableAreaHeight;
_xpsDocumentGenerator = new XpsDocumentGenerator(
_mainPrintContent, _additionalPrintContent, _viewDrawingState, width, height, _pageMargin);
_xpsDocumentGenerator.StartPrinting += OnStartPrinting;
_xpsDocumentGenerator.PrintingFinished += OnPrintingFinished;
_xpsDocumentGenerator.Print();
}
public void Dispose()
{
if (_xpsDocumentGenerator != null)
_xpsDocumentGenerator.Dispose();
_xpsDocumentGenerator = null;
}