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public class ZoomToVisibleScaleTocMenuEntry extends TocMenuEntry {

	private JMenuItem propsMenuItem;

	FLayer lyr = null;

	public void initialize(FPopupMenu m) {

		super.initialize(m);

		if (isTocItemBranch()) {

			lyr = getNodeLayer();

    		if ((lyr instanceof FLyrWMS)) {

    			propsMenuItem = new JMenuItem(PluginServices.getText(this, "zoom_to_visible_scale"));

    			getMenu().add( propsMenuItem );

    			getMenu().setEnabled(true);

     		}

		}

	}

	public void actionPerformed(ActionEvent e) {

		lyr = getNodeLayer();

		if (lyr.isAvailable()) {

				FLyrWMS wmsLayer = (FLyrWMS) lyr;

				MapContext mp = getMapContext();

				double mapScale = (double) mp.getScaleView();

				double correctedMaxScale = wmsLayer.getCorrectedServerMaxScale();

				if (correctedMinScale>0 // -1 and 0 are invalid values for scale

						&& mapScale>=correctedMaxScale){

					/**

					 * As the WMS 1.3 standard defines the MAX DENOMINATOR SCALE as a non-inclusive

					 * move to the "safe side" of the limit.

					 */

					mp.setScaleView((long)correctedMaxScale-1);