protected override long MeasureItemOverride()
{
var streamKeeper = new StreamKeeper(new BitStream(new NullStream()));
var serializableChildren = GetSerializableChildren();
var childLengths = serializableChildren.Select(child =>
{
streamKeeper.RelativePosition = 0;
child.Serialize(streamKeeper.Stream, null);
return(streamKeeper.RelativePosition);
}).ToList();
if (!childLengths.Any())
{
return(0);
}
var childLengthGroups = childLengths.GroupBy(childLength => childLength);
var childLengthGroup = childLengthGroups.SingleOrDefault();
if (childLengthGroup == null)
{
throw new InvalidOperationException("Unable to update binding source because not all items have equal lengths.");
}
return(childLengthGroup.Key);
}
protected virtual long MeasureOverride()
{
var streamKeeper = new StreamKeeper(new BitStream(new NullStream()));
Serialize(streamKeeper.Stream, null);
return(streamKeeper.RelativePosition);
}
public override void Write(Stream stream)
{
// 0x10 ignored bytes
stream.Write(new byte[0x10], 0, 0x10);
// optimization: Check if we have the data from the original file, and we don't need to encrypt and compress it again
if (this.Data.GetType() == typeof(CompressedFileStreamCreator) && (this.Data as CompressedFileStreamCreator).Encrypted == IsResourceEncrypted(this.Type))
{
(this.Data as CompressedFileStreamCreator).WriteRaw(stream);
}
else
{
// we need to create it..
Stream baseStream = new StreamKeeper(stream);
using (Stream input = this.Data.GetStream())
{
using (Stream output = IsResourceEncrypted(this.Type) ? Platform.GetCompressStream(AES.EncryptStream(baseStream)) : Platform.GetCompressStream(baseStream))
{
input.CopyTo(output);
}
}
}
}
public override void Write(Stream stream)
{
FileStreamCreator originalStream = this.TryGetOriginalFileStreamCreator();
// optimization: Check if we have the data from the original file, and we don't need to encrypt and compress it again
if (originalStream != null)
{
originalStream.WriteRaw(stream);
}
else
{
// we need to create it..
Stream baseStream = new StreamKeeper(stream);
using (Stream input = this.Data.GetStream())
{
using (Stream output = this.Compressed ? Platform.GetCompressStream(AES.EncryptStream(baseStream)) : baseStream)
{
input.CopyTo(output);
}
}
}
}
public override void Write(Stream stream)
{
// optimization: Check if we have the data from the original file, and we don't need to encrypt and compress it again
if (this.Compressed && this.Data.GetType() == typeof(CompressedFileStreamCreator))
{
(this.Data as CompressedFileStreamCreator).WriteRaw(stream);
}
else if (!this.Compressed && this.Data.GetType() == typeof(FileStreamCreator))
{
(this.Data as FileStreamCreator).WriteRaw(stream);
}
else
{
// we need to create it..
Stream baseStream = new StreamKeeper(stream);
using (Stream input = this.Data.GetStream())
{
using (Stream output = this.Compressed ? Platform.GetCompressStream(AES.EncryptStream(baseStream)) : baseStream)
{
input.CopyTo(output);
}
}
}
}
