public void Encode(byte value)
{
if (currentNode.ContainsValue(value))
{
currentNode = currentNode.GetChild(value);
}
else
{
LZWNode child = new LZWNode(value, nextNodeValue);
currentNode.AddChild(child);
allNodes[nextNodeValue] = child;
encoder.Encode(currentNode.identifier);
currentNode.AddUsage();
encoder.AddValue(nextNodeValue);
IncreaseNextNodeValue();
currentNode = root.GetChild(value);
}
}
public LZW(IEncoder encoder)
{
this.encoder = encoder;
this.root = new LZWNode(0, 0);
this.buffer = new Stack <byte>();
allNodes = new Dictionary <long, LZWNode>();
for (int i = 0; i <= 255; i++)
{
LZWNode child = new LZWNode((byte)i, i);
root.AddChild(child);
allNodes[i] = child;
}
currentNode = this.root;
}