private static ItemDataBox CreateItemDataBox(ImageGridMetadata imageGridMetadata, IByteArrayPool arrayPool)
{
ImageGridDescriptor imageGridDescriptor = new ImageGridDescriptor(imageGridMetadata);
byte[] dataBoxBuffer = new byte[imageGridDescriptor.GetSize()];
MemoryStream stream = null;
try
{
stream = new MemoryStream(dataBoxBuffer);
using (BigEndianBinaryWriter writer = new BigEndianBinaryWriter(stream, leaveOpen: false, arrayPool))
{
stream = null;
// The ImageGridDescriptor is shared between the color and alpha image.
imageGridDescriptor.Write(writer);
}
}
finally
{
stream?.Dispose();
}
return(new ItemDataBox(dataBoxBuffer));
}
public ImageGridInfo TryGetImageGridInfo(uint itemId)
{
ImageGridDescriptor gridDescriptor = TryGetImageGridDescriptor(itemId);
if (gridDescriptor != null)
{
IItemReferenceEntry derivedImageProperty = GetMatchingReferences(itemId, ReferenceTypes.DerivedImage).First();
return(new ImageGridInfo(derivedImageProperty.ToItemIds, gridDescriptor));
}
return(null);
}
