/// <summary>
/// Writes the element value to the stream.
/// </summary>
/// <param name="stream">The stream to write that positioned at the proper location to write.</param>
/// <param name="syntax">The tranfer syntax to use if the value is binary.</param>
/// <param name="encoding">The specific character set to use if the value is text.</param>
/// <param name="options">The options used to encode tags.</param>
protected override void WriteValueOnStream(Stream stream, string syntax, SpecificCharacterSet encoding, DataSetOptions options)
{
EndianBinaryWriter writer = new EndianBinaryWriter(stream, Syntax.GetEndian(syntax));
unchecked
{
foreach (Elements elements in items)
{
writer.Write((short)0xFFFE);
writer.Write((short)0xE000);
// each nested element list can have its own SpecificCharacterSet,
// and it is valid for all nested elements, unless overridden again further down
SpecificCharacterSet scoped = encoding;
if (elements.Contains(t.SpecificCharacterSet))
{
scoped = new SpecificCharacterSet(elements[t.SpecificCharacterSet].Value);
}
uint size = 0;
// and account for the size of each child element
foreach (Element child in elements)
{
size += child.GetSize(syntax, scoped);
}
writer.Write(size);
foreach (Element child in elements)
{
child.Write(writer.BaseStream, syntax, scoped, options);
}
}
}
}
/// <summary>
/// Writes the element value to the stream.
/// </summary>
/// <param name="stream">The stream to write that positioned at the proper location to write.</param>
/// <param name="syntax">The tranfer syntax to use if the value is binary.</param>
/// <param name="encoding">The specific character set to use if the value is text.</param>
/// <param name="options">The options used to encode tags.</param>
protected override void WriteValueOnStream(Stream stream, string syntax, SpecificCharacterSet encoding, DataSetOptions options)
{
EndianBinaryWriter writer = new EndianBinaryWriter(stream, Syntax.GetEndian(syntax));
if (Syntax.CanEncapsulatePixelData(syntax))
{
WriteEncapsulatedPixelData(writer);
}
else
{
if (vr == "OW")
{
short[] words = Value as short[];
foreach (short word in words)
{
writer.Write(word);
}
}
else if (vr == "OB")
{
byte[] value = Value as byte[];
writer.Write((byte[])value);
if (value.Length % 2 != 0)
{
writer.Write('\0');
}
}
else
{
throw new Exception(String.Format("Unexpected vr={0} in WriteValueOnStream", vr));
}
}
}