@Override
	public void selectionner(int debut, int fin)	{
		if(debut > this.buffer.size()) {
			this.selection.setDebut(this.buffer.size());
		} else {
			this.selection.setDebut(debut);
		}
		if(fin > this.buffer.size()) {
			this.selection.setFin(this.buffer.size());
		} else {
			this.selection.setFin(fin);
		}	
	}