KeyListenerAdapter.java

package org.csstudio.sds.ui.internal.editor;

import java.util.LinkedList;
import java.util.List;

import org.eclipse.swt.events.KeyEvent;
import org.eclipse.swt.events.KeyListener;

public class KeyListenerAdapter implements KeyListener {
	
	private List<Integer> _pressedKeys;

	public KeyListenerAdapter() {
		_pressedKeys = new LinkedList<Integer>();
	}


	@Override
	public void keyPressed(KeyEvent e) {
		Integer keyCode = new Integer(e.keyCode);
		if (!_pressedKeys.contains(keyCode)) {
			_pressedKeys.add(keyCode);
		}
	}

	@Override
	public void keyReleased(KeyEvent e) {
		Integer keyCode = new Integer(e.keyCode);
		_pressedKeys.remove(keyCode);
	}

	public List<Integer> getPressedKeys() {
		return _pressedKeys;
	}

}