public void keyPressed(boolean[] keys, KeyEvent e) {
		int keyCode = e.getKeyCode();
		if (keyCode==37) parent.cellsManager.shiftSelectButton(-1);// left
		if (keyCode==39) parent.cellsManager.shiftSelectButton(1);// right
		if (keyCode==8) parent.cellsManager.deleteLastChar();
		if (keyCode!=37 && keyCode!=39 && keyCode!=8 && keyCode!=16 && keyCode!=17 && keyCode!=18) 
		{
			parent.cellsManager.write(e.getKeyChar());
		}
	}