public void Clear()
{
_ms = null;
_br = null;
_bw = null;
_data = null;
_segment = null;
}
public void Append(byte[] buffer, int offset, int count)
{
long pos = Stream.Position;
Stream.Seek(0, SeekOrigin.End);
Stream.Write(buffer, offset, count);
Stream.Position = pos;
_segment = null;
}
private ByteBuffer CurrentBuffer(DicomReadOptions options)
{
#if SILVERLIGHT
ByteBuffer bb = new ByteBuffer(_endian);
bb.CopyFrom(_stream, (int)_len);
#else
ByteBuffer bb = null;
if (_isFile)
{
bool delayLoad = false;
if (_len >= _largeElementSize && _vr != DicomVR.SQ)
{
if (Flags.IsSet(options, DicomReadOptions.DeferLoadingLargeElements))
{
delayLoad = true;
}
else if (Flags.IsSet(options, DicomReadOptions.DeferLoadingPixelData) && _tag == DicomTags.PixelData)
{
delayLoad = true;
}
else if (Flags.IsSet(options, DicomReadOptions.DeferLoadingPixelData) && _fragment != null && _fragment.Tag == DicomTags.PixelData)
{
delayLoad = true;
}
}
if (delayLoad)
{
FileStream fs = (FileStream)_stream;
FileSegment segment = new FileSegment(fs.Name, fs.Position, _len);
_stream.Seek(_len, SeekOrigin.Current);
bb = new ByteBuffer(segment, _endian);
}
}
if (bb == null)
{
bb = new ByteBuffer(_endian);
bb.CopyFrom(_stream, (int)_len);
}
#endif
if (_vr.IsEncodedString)
{
bb.Encoding = _encoding;
}
return(bb);
}
public void Chop(int count)
{
_segment = null;
int len = (int)Stream.Length;
if (len <= count)
{
Stream.SetLength(0);
return;
}
byte[] bytes = GetChunk(count, len - count);
Stream.SetLength(0);
Stream.Position = 0;
Stream.Write(bytes, 0, bytes.Length);
}
public void SetString(string val, byte pad)
{
int count = _encoding.GetByteCount(val);
if ((count & 1) == 1)
{
count++;
}
byte[] bytes = new byte[count];
if (_encoding.GetBytes(val, 0, val.Length, bytes, 0) < count)
{
bytes[count - 1] = pad;
}
_data = bytes;
_ms = null;
_segment = null;
}
public int CopyFrom(Stream s, int count)
{
_ms = null;
_segment = null;
_br = null;
_bw = null;
int read = 0;
_data = new byte[count];
while (read < count)
{
int rd = s.Read(_data, read, count - read);
if (rd == 0)
{
return(read);
}
read += rd;
}
return(read);
}
public void FromBytes(byte[] bytes)
{
_data = bytes;
_ms = null;
_segment = null;
}
public int CopyFrom(Stream s, int count)
{
_ms = null;
_segment = null;
_br = null;
_bw = null;
int read = 0;
_data = new byte[count];
while (read < count) {
int rd = s.Read(_data, read, count - read);
if (rd == 0)
return read;
read += rd;
}
return read;
}
public void Clear()
{
_ms = null;
_br = null;
_bw = null;
_data = null;
_segment = null;
}
public void Chop(int count)
{
_segment = null;
int len = (int)Stream.Length;
if (len <= count) {
Stream.SetLength(0);
return;
}
byte[] bytes = GetChunk(count, len - count);
Stream.SetLength(0);
Stream.Position = 0;
Stream.Write(bytes, 0, bytes.Length);
}
public void Append(byte[] buffer, int offset, int count)
{
long pos = Stream.Position;
Stream.Seek(0, SeekOrigin.End);
Stream.Write(buffer, offset, count);
Stream.Position = pos;
_segment = null;
}
private ByteBuffer CurrentBuffer(DicomReadOptions options)
{
ByteBuffer bb = null;
if (_isFile) {
bool delayLoad = false;
if (_len >= _largeElementSize && _vr != DicomVR.SQ) {
if (Flags.IsSet(options, DicomReadOptions.DeferLoadingLargeElements))
delayLoad = true;
else if (Flags.IsSet(options, DicomReadOptions.DeferLoadingPixelData) && _tag == DicomTags.PixelData)
delayLoad = true;
else if (Flags.IsSet(options, DicomReadOptions.DeferLoadingPixelData) && _fragment != null && _fragment.Tag == DicomTags.PixelData)
delayLoad = true;
}
if (delayLoad) {
FileStream fs = (FileStream)_stream;
FileSegment segment = new FileSegment(fs.Name, fs.Position, _len);
_stream.Seek(_len, SeekOrigin.Current);
bb = new ByteBuffer(segment, _endian);
}
}
if (bb == null) {
bb = new ByteBuffer(_endian);
bb.CopyFrom(_stream, (int)_len);
}
if (_vr.IsEncodedString)
bb.Encoding = _encoding;
return bb;
}
public ByteBuffer(FileSegment segment)
: this(segment, Endian.LocalMachine)
{
}
public void SetString(string val)
{
_data = _encoding.GetBytes(val);
_ms = null;
_segment = null;
}
public void FromBytes(byte[] bytes)
{
_data = bytes;
_ms = null;
_segment = null;
}
public void SetString(string val)
{
_data = _encoding.GetBytes(val);
_ms = null;
_segment = null;
}
public void SetString(string val, byte pad)
{
int count = _encoding.GetByteCount(val);
if ((count & 1) == 1)
count++;
byte[] bytes = new byte[count];
if (_encoding.GetBytes(val, 0, val.Length, bytes, 0) < count)
bytes[count - 1] = pad;
_data = bytes;
_ms = null;
_segment = null;
}
public ByteBuffer(FileSegment segment)
: this(segment, Endian.LocalMachine)
{
}
public ByteBuffer(FileSegment segment, Endian endian)
{
_segment = segment;
_endian = endian;
_encoding = DcmEncoding.Default;
}
public ByteBuffer(FileSegment segment, Endian endian)
{
_segment = segment;
_endian = endian;
_encoding = DcmEncoding.Default;
}