package com.glavsoft.rfb.encoding.decoder;

import jp.ac.u_ryukyu.treevnc.MyRfbProto;
import jp.ac.u_ryukyu.treevnc.client.MyRfbProtoClient;

import com.glavsoft.drawing.Renderer;
import com.glavsoft.exceptions.TransportException;
import com.glavsoft.rfb.encoding.EncodingType;
import com.glavsoft.transport.Reader;

public class ZRLEESender extends Decoder {
	
	private MyRfbProto rfb;

	public ZRLEESender(MyRfbProto rfb) {
		this.rfb = rfb;
	}
	
	public ZRLEESender(MyRfbProtoClient rfb) {
	}
	
	@Override
	public void decode(Reader reader, Renderer renderer,
			FramebufferUpdateRectangle rect) throws TransportException {
		int dataLen = getZrleLength(rect,reader);
		reader.reset();
		rfb.readSendData(dataLen, reader);
		if(rfb instanceof MyRfbProtoClient) {
			reader.readByte();// message
			reader.readByte();// padding 
			reader.readUInt16();// numberOfRectangle
			rect.fill(reader);// fill
			Decoder decoder = new ZRLEDecoder();
			decoder.decode(reader,renderer,rect);
		}
	}

	private int getZrleLength(FramebufferUpdateRectangle rect,Reader reader)
			throws TransportException {
		int zrleLength = 0;
		if (rect.getEncodingType() == EncodingType.ZRLE
				|| rect.getEncodingType() == EncodingType.ZRLEE
				|| rect.getEncodingType() == EncodingType.ZLIB) {
			zrleLength = reader.readInt32();
		}
		return zrleLength + 20;
	}


}