public static IEnumerable<Bitmap> ToBitmap(string filename, Parameters parameters)
{
using (var xpsConverter = new Xps2Image(filename))
{
return xpsConverter.ToBitmap(parameters).ToList();
}
}
public static IEnumerable<Bitmap> ToBitmap(Stream stream, Parameters parameters)
{
using (var xpsConverter = new Xps2Image(stream))
{
return xpsConverter.ToBitmap(parameters).ToList();
}
}
public static IEnumerable<Bitmap> ToBitmap(byte[] byteArray, Parameters parameters)
{
using (var xpsConverter = new Xps2Image(byteArray))
{
return xpsConverter.ToBitmap(parameters).ToList();
}
}
private RenderTargetBitmap GetPageBitmap(DocumentPaginator documentPaginator, int pageNumber, Parameters parameters)
{
const double dpiConst = 96.0;
double dpi = parameters.Dpi;
var size = parameters.RequiredSize ?? new Size();
Func<int, bool> isSizeDefined = requiredSize => requiredSize > 0;
Action<int, double> calcDpi = (requiredSize, pageSize) =>
{
if (isSizeDefined(requiredSize))
{
dpi = (requiredSize / pageSize) * dpiConst;
}
};
try
{
using (var page = documentPaginator.GetPage(pageNumber))
{
if (!size.IsEmpty)
{
var portrait = page.Size.Height >= page.Size.Width;
if (portrait || !isSizeDefined(size.Width))
{
calcDpi(size.Height, page.Size.Height);
}
if (!portrait || !isSizeDefined(size.Height))
{
calcDpi(size.Width, page.Size.Width);
}
}
var ratio = dpi / dpiConst;
var bitmap = new RenderTargetBitmap((int)Math.Round(page.Size.Width * ratio),
(int)Math.Round(page.Size.Height * ratio), dpi, dpi, PixelFormats.Pbgra32);
bitmap.Render(page.Visual);
// Memory leak fix.
// http://social.msdn.microsoft.com/Forums/en/wpf/thread/c6511918-17f6-42be-ac4c-459eeac676fd
((FixedPage)page.Visual).UpdateLayout();
return bitmap;
}
}
catch (XamlParseException ex)
{
throw new ConversionException(ex.Message, pageNumber + 1, ex);
}
}
private Bitmap ProcessPage(Parameters parameters, int docPageNumber)
{
var bitmapEncoder = CreateEncoder(parameters.ImageType, parameters.ImageOptions);
var bitmapSource = GetPageBitmap(_xpsDocumentPaginator, docPageNumber, parameters);
using (var stream = new MemoryStream())
{
bitmapEncoder.Frames.Add(BitmapFrame.Create(bitmapSource));
bitmapEncoder.Save(stream);
return new Bitmap(stream);
}
}
public IEnumerable<Bitmap> ToBitmap(Parameters parameters)
{
var pages = new List<Bitmap>();
var thread = new Thread(() =>
{
const string inMemoryPackageName = "memorystream://inmemory.xps";
var packageUri = new Uri(inMemoryPackageName);
using (var package = Package.Open(_xpsDocumentInMemoryStream))
{
PackageStore.AddPackage(packageUri, package);
_xpsDocument = new XpsDocument(package, CompressionOption.Normal, inMemoryPackageName);
_xpsDocumentPaginator = _xpsDocument.GetFixedDocumentSequence().DocumentPaginator;
for (var docPageNumber = 0; docPageNumber < PageCount; docPageNumber++)
{
pages.Add(ProcessPage(parameters, docPageNumber));
}
PackageStore.RemovePackage(packageUri);
_xpsDocument.Close();
_xpsDocument = null;
}
});
thread.SetApartmentState(ApartmentState.STA);
thread.Start();
thread.Join();
return pages;
}
public static IEnumerable<Bitmap> ToBitmap(IEnumerable<byte[]> byteArrays, Parameters parameters)
{
foreach (var byteArray in byteArrays)
{
using (var xpsConverter = new Xps2Image(byteArray))
{
return xpsConverter.ToBitmap(parameters).ToList();
}
}
return new List<Bitmap>();
}
public static IEnumerable<Bitmap> ToBitmap(IEnumerable<Stream> streams, Parameters parameters)
{
foreach (var stream in streams)
{
using (var xpsConverter = new Xps2Image(stream))
{
return xpsConverter.ToBitmap(parameters).ToList();
}
}
return new List<Bitmap>();
}
public static IEnumerable<Bitmap> ToBitmap(IEnumerable<string> filenames, Parameters parameters)
{
foreach (var filename in filenames)
{
using (var xpsConverter = new Xps2Image(filename))
{
return xpsConverter.ToBitmap(parameters).ToList();
}
}
return new List<Bitmap>();
}
public IEnumerable<Bitmap> ToBitmap(Parameters parameters)
{
const string inMemoryPackageName = "memorystream://inmemory.xps";
var packageUri = new Uri(inMemoryPackageName);
using (var package = Package.Open(_xpsDocumentInMemoryStream))
{
PackageStore.AddPackage(packageUri, package);
_xpsDocument = new XpsDocument(package, CompressionOption.Normal, inMemoryPackageName);
_xpsDocumentPaginator = _xpsDocument.GetFixedDocumentSequence().DocumentPaginator;
for (var docPageNumber = 0; docPageNumber < PageCount; docPageNumber++)
{
yield return ProcessPage(parameters, docPageNumber);
}
PackageStore.RemovePackage(packageUri);
_xpsDocument.Close();
_xpsDocument = null;
}
}
