public void View(string path, ContextObject context)
{
using (var officeApp = new OfficeInteropWrapper(path))
{
_pdfPath = officeApp.SaveAsPdf();
}
if (string.IsNullOrEmpty(_pdfPath))
{
throw new Exception("COM failed.");
}
_pdfViewer = new PdfViewerControl();
_pdfViewer.Loaded += (sender, e) =>
{
try
{
_pdfViewer.LoadPdf(_pdfPath);
}
catch (Exception ex)
{
throw ex;
}
context.Title = $"{Path.GetFileName(path)} (1 / {_pdfViewer.TotalPages})";
};
_pdfViewer.CurrentPageChanged += (sender, e) => context.Title =
$"{Path.GetFileName(path)} ({_pdfViewer.CurrentPage + 1} / {_pdfViewer.TotalPages})";
context.ViewerContent = _pdfViewer;
context.IsBusy = false;
}
private static Control OpenPowerpoint(string path)
{
var ppt = Presentation.Open(path);
ppt.ChartToImageConverter = new ChartToImageConverter();
var settings = new PresentationToPdfConverterSettings
{
OptimizeIdenticalImages = true,
ShowHiddenSlides = true
};
var pdf = PresentationToPdfConverter.Convert(ppt, settings);
var viewer = new PdfViewerControl();
var tempPdf = new MemoryStream();
pdf.Save(tempPdf);
pdf.Close(true);
pdf.Dispose();
ppt.Close();
ppt.Dispose();
viewer.Dispatcher.BeginInvoke(new Action(() =>
{
viewer.LoadPdf(tempPdf);
tempPdf.Dispose();
}), DispatcherPriority.Loaded);
return(viewer);
}
public void View(string path, ContextObject context)
{
_pdfControl = new PdfViewerControl();
context.ViewerContent = _pdfControl;
_buffer = GhostScriptWrapper.ConvertToPdf(path);
if (_buffer == null || _buffer.Length == 0)
{
context.ViewerContent = new Label {
Content = "Conversion to PDF failed."
};
context.IsBusy = false;
return;
}
Exception exception = null;
_pdfControl.Dispatcher.BeginInvoke(new Action(() =>
{
try
{
_pdfControl.LoadPdf(_buffer);
context.Title = $"1 / {_pdfControl.TotalPages}: {Path.GetFileName(path)}";
_pdfControl.CurrentPageChanged += UpdateWindowCaption;
context.IsBusy = false;
}
catch (Exception e)
{
exception = e;
}
}), DispatcherPriority.Loaded).Wait();
if (exception != null)
{
ExceptionDispatchInfo.Capture(exception).Throw();
}
}