public bool IsPage(IGraph <IVisual, IVisualEdge> source, IVisual page)
{
var digidoc = new DigidocSchema(source.ThingGraph(), source.ThingOf(page));
var pageThing = source.ThingOf(page) as IStreamThing;
var info = new ImageContentSpot();
return(pageThing != null && info.Supports(pageThing.StreamType));
}
protected virtual Content <Stream> Digg(Content <Stream> source, Content <Stream> sink)
{
if (!_spot.Supports(source.ContentType))
{
return(sink);
}
if (source.ContentType == ContentTypes.DIB)
{
var bmp = new BitmapFromDibStream(source.Data);
var sinkStream = bmp.Clone(bmp.Length);
sink.Data = sinkStream;
sink.ContentType = ContentTypes.BMP;
}
return(sink);
}