/**
* BigBlueButton open source conferencing system - http://www.bigbluebutton.org/
* 
* Copyright (c) 2012 BigBlueButton Inc. and by respective authors (see below).
*
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free Software
* Foundation; either version 3.0 of the License, or (at your option) any later
* version.
* 
* BigBlueButton is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along
* with BigBlueButton; if not, see <http://www.gnu.org/licenses/>.
*
*/
package org.bigbluebutton.deskshare.client;

import org.bigbluebutton.deskshare.client.frame.CaptureRegionFrame;
import org.bigbluebutton.deskshare.client.frame.CaptureRegionListener;

public class ScreenRegionSharer implements ScreenSharer {
	public static final String NAME = "SCREENREGIONSHARER: ";
	
	private final ScreenShareInfo ssi;
	private ScreenSharerRunner sharer;
	private ClientListener listener;
	private CaptureRegionFrame frame;
	
	public ScreenRegionSharer(ScreenShareInfo ssi) {
		this.ssi = ssi;
	}
	
	public void start(boolean autoStart) {
		CaptureRegionListener crl = new CaptureRegionListenerImp(this);
		frame = new CaptureRegionFrame(crl, 5);
		frame.setHeight(ssi.captureHeight);
		frame.setWidth(ssi.captureWidth);
		frame.setLocation(ssi.x, ssi.y);		
		System.out.println(NAME + "Launching Screen Capture Frame");
		frame.start(autoStart);
		
	}
	
	public void addClientListener(ClientListener l) {
		listener = l;
	}
	
	public void disconnected(){
		frame.setVisible(false);
		sharer.disconnectSharing();
		System.out.println(NAME + "Desktop sharing disconneted");
	} // END FUNCTION disconnected
	
	public void stop() {
		frame.setVisible(false);	
		sharer.stopSharing();
		System.out.println(NAME + "Closing Screen Capture Frame");
	}
	
	private class CaptureRegionListenerImp implements CaptureRegionListener {
		private final ScreenRegionSharer srs;
		
		public CaptureRegionListenerImp(ScreenRegionSharer srs) {
			this.srs = srs;
		}
		
		@Override
		public void onCaptureRegionMoved(int x, int y) {
			ssi.x = x;
			ssi.y = y;
			if (sharer != null)
				sharer.setCaptureCoordinates(x, y);
		}

		@Override
		public void onStartCapture(int x, int y, int width, int height) {
			ssi.x = x;
			ssi.y = y;
			ssi.captureWidth = width;
			ssi.captureHeight = height;
			ssi.scaleWidth = width;
			ssi.scaleHeight = height;
			sharer = new ScreenSharerRunner(ssi);
			sharer.addClientListener(listener);
			sharer.startSharing();
		}

		@Override
		public void onStopCapture() {
			srs.stop();
		}
	}
}