package jp.ac.u_ryukyu.treevnc;

import java.nio.ByteBuffer;
import java.nio.ByteOrder;

import com.glavsoft.exceptions.TransportException;
import com.glavsoft.rfb.client.ClientToServerMessage;
import com.glavsoft.transport.Writer;

	/**
	 * ClientCutText
	 * The client has new ISO 8859-1 (Latin-1) text in its cut buffer. Ends of lines are repre-
	 * sented by the linefeed / newline character (value 10) alone. No carriage-return (value
	 * 13) is needed. There is currently no way to transfer text outside the Latin-1 character
	 * set.
	 * 1      - U8       - 6
	 * 3      -          - padding
	 * 4      - U32      - length
	 * length - U8 array - text
	 */
	public class ScreenChangeRequest implements ClientToServerMessage {
		final String bytes;

		public ScreenChangeRequest(String adr) {
			this.bytes = adr;
			System.out.println("Client send change screen server request :" + adr);
		}

		@Override
		public void send(Writer writer) throws TransportException {
			ByteBuffer out = ByteBuffer.allocate(bytes.length()+16);
			out.order(ByteOrder.BIG_ENDIAN);
			out.put(SERVER_CHANGE_REQUEST);
			out.put((byte)0); 
			out.putShort((byte)0); // padding
			out.putInt(bytes.length());
			out.put(bytes.getBytes());
			writer.write(out.array(), 0, out.position());
			writer.flush();
			}

		@Override
		public String toString() {
			return "Screen change request: [length: " + bytes.length() +", text: ...]" + new String (bytes);
		}
	}