    /**
     * Sets the currently chosen <code>MapTransform</code>.
     * @param mt The transform that should be applied to a
     *      <code>Tile</code> that is clicked on the map.
     */
    public void setMapTransform(MapTransform mt) {
        currentMapTransform = mt;
        MapControlsAction mca = (MapControlsAction) freeColClient.getActionManager().getFreeColAction(MapControlsAction.ID);
        if (mca.getMapControls() != null) {
            mca.getMapControls().update(mt);
