DrawCanvas.java (constructor)

DrawCanvas(PolyDraw thePD) {

pd = thePD;

ct = pd.getControls();

theDrawnObjects = new Vector();

MouseHandlerForDrawCanvas mh =

new MouseHandlerForDrawCanvas();

addMouseListener(mh);

addMouseMotionListener(mh);

selectionRect = new SelectionRect();

selecting = false;

movingSelection = false;

selection = new Vector();

}