static int _wpfPayloadCount; // used to disambiguate between all acts of loading from different WPF payloads.
internal static object LoadElement(Stream stream)
{
Package package = Package.Open(stream, FileMode.Open, FileAccess.Read);
WpfPayload wpfPayload = new WpfPayload(package);
PackagePart xamlEntryPart = wpfPayload.GetWpfEntryPart();
int newWpfPayoutCount = _wpfPayloadCount++;
Uri payloadUri = new Uri("payload://wpf" + newWpfPayoutCount, UriKind.Absolute);
Uri entryPartUri = PackUriHelper.Create(payloadUri, xamlEntryPart.Uri); // gives an absolute uri of the entry part
Uri packageUri = PackUriHelper.GetPackageUri(entryPartUri); // extracts package uri from combined package+part uri
PackageStore.AddPackage(packageUri, wpfPayload.Package); // Register the package
ParserContext parserContext = new ParserContext();
parserContext.BaseUri = entryPartUri;
object xamlObject = XamlReader.Load(xamlEntryPart.GetStream(), parserContext);
// Remove the temporary uri from the PackageStore
PackageStore.RemovePackage(packageUri);
return(xamlObject);
}
internal static Stream SaveImage(BitmapSource bitmapSource, string imageContentType)
{
MemoryStream stream = new MemoryStream();
// Create the wpf package in the stream
WpfPayload wpfPayload = new WpfPayload();
using (wpfPayload.CreatePackage(stream))
{
PackagePart xamlEntryPart = wpfPayload.CreateWpfEntryPart();
Stream xamlPartStream = xamlEntryPart.GetStream();
using (xamlPartStream)
{
int imageIndex = 0;
string imageReference = GetImageReference(GetImageName(imageIndex, imageContentType));
StreamWriter xamlPartWriter = new StreamWriter(xamlPartStream);
using (xamlPartWriter)
{
string xamlText =
"<Span xmlns=\"http://schemas.microsoft.com/winfx/2006/xaml/presentation\">" +
"<InlineUIContainer><Image " +
"Width=\"" +
bitmapSource.Width + "\" " +
"Height=\"" +
bitmapSource.Height + "\" " +
"><Image.Source><BitmapImage CacheOption=\"OnLoad\" UriSource=\"" +
imageReference +
"\"/></Image.Source></Image></InlineUIContainer></Span>";
xamlPartWriter.Write(xamlText);
}
wpfPayload.CreateImagePart(xamlEntryPart, bitmapSource, imageContentType, imageIndex);
}
}
return(stream);
}
static int _wpfPayloadCount; // used to disambiguate between all acts of loading from different WPF payloads.
internal static object LoadElement(Stream stream)
{
Package package = Package.Open(stream, FileMode.Open, FileAccess.Read);
WpfPayload wpfPayload = new WpfPayload(package);
PackagePart xamlEntryPart = wpfPayload.GetWpfEntryPart();
int newWpfPayoutCount = _wpfPayloadCount++;
Uri payloadUri = new Uri("payload://wpf" + newWpfPayoutCount, UriKind.Absolute);
Uri entryPartUri = PackUriHelper.Create(payloadUri, xamlEntryPart.Uri); // gives an absolute uri of the entry part
Uri packageUri = PackUriHelper.GetPackageUri(entryPartUri); // extracts package uri from combined package+part uri
PackageStore.AddPackage(packageUri, wpfPayload.Package); // Register the package
ParserContext parserContext = new ParserContext();
parserContext.BaseUri = entryPartUri;
object xamlObject = XamlReader.Load(xamlEntryPart.GetStream(), parserContext);
// Remove the temporary uri from the PackageStore
PackageStore.RemovePackage(packageUri);
return xamlObject;
}
internal static Stream SaveImage(BitmapSource bitmapSource, ImageContentType imageContentType)
{
MemoryStream stream = new MemoryStream();
// Create the wpf package in the stream
WpfPayload wpfPayload = new WpfPayload();
using (wpfPayload.CreatePackage(stream))
{
PackagePart xamlEntryPart = wpfPayload.CreateWpfEntryPart();
Stream xamlPartStream = xamlEntryPart.GetStream();
using (xamlPartStream)
{
// int imageIndex = 0;
imageIndex++;
string imageReference = GetImageReference(GetImageName(imageIndex, imageContentType));
StreamWriter xamlPartWriter = new StreamWriter(xamlPartStream);
using (xamlPartWriter)
{
string xamlText =
"<Span xmlns=\"http://schemas.microsoft.com/winfx/2006/xaml/presentation\">" +
"<InlineUIContainer><Image " +
"Width=\"" +
bitmapSource.Width + "\" " +
"Height=\"" +
bitmapSource.Height + "\" " +
"><Image.Source><BitmapImage CacheOption=\"OnLoad\" UriSource=\"" +
imageReference +
"\"/></Image.Source></Image></InlineUIContainer></Span>";
xamlPartWriter.Write(xamlText);
}
wpfPayload.CreateImagePart(xamlEntryPart, bitmapSource, imageContentType, imageIndex);
}
}
return stream;
}
