Issue #1529 Disable menu items when no subscriptions selected

Amend:
  Rebase to 13.2.1

Change-Id: I5265c1036bc31a87a8bacadfd7b3a9219922f073

Former-commit-id: 572733ff56 [formerly fc332a8b9a] [formerly e9ae4c62c1 [formerly 50a157e679cc16cc47653314d538738355aada49]]
Former-commit-id: e9ae4c62c1
Former-commit-id: f6dfeb1823

cave/com.raytheon.uf.viz.datadelivery/src/com/raytheon/uf/viz/datadelivery/bandwidth/ui/BandwidthCanvasComp.java

@@ -91,6 +91,7 @@ import com.raytheon.uf.viz.datadelivery.utils.DataDeliveryUtils;
  * Nov 6, 2012    1269     lvenable    Initial creation.
  * Dec 13, 2012   1269     lvenable    Fixes and updates.
  * Jan 07, 2013   1451     djohnson    Use TimeUtil.newGmtCalendar().
+ * Jan 28, 2013   1529     djohnson    Disable menu items if no subscriptions selected.
  * 
  * </pre>
  * 
@@ -886,6 +887,7 @@ public class BandwidthCanvasComp extends Composite implements IDialogClosed,
 
         MenuItem viewSubs = new MenuItem(m, SWT.NONE);
         viewSubs.setText("View Selected Subscriptions...");
+        viewSubs.setEnabled(imageMgr.hasSubscriptionNameChecked());
         viewSubs.addListener(SWT.Selection, new Listener() {
             @Override
             public void handleEvent(Event event) {

cave/com.raytheon.uf.viz.datadelivery/src/com/raytheon/uf/viz/datadelivery/bandwidth/ui/BandwidthImageMgr.java

@@ -45,6 +45,7 @@ import com.raytheon.uf.common.datadelivery.registry.Subscription.SubscriptionPri
  * Nov 28, 2012    1269    lvenable     Initial creation
  * Dec 13, 2012   1269     lvenable     Fixes and updates.
  * Jan 25, 2013   1528     djohnson     Subscription priority is now an enum on subscriptions.
+ * Jan 28, 2013  1529      djohnson    Add hasSubscriptionNameChecked().
  * 
  * </pre>
  * 
@@ -491,4 +492,13 @@ public class BandwidthImageMgr implements IGraphOptions {
         regenerateImage(CanvasImages.X_HEADER);
 
     }
-}
+
+    /**
+     * Check whether there is a checked subscription name.
+     * 
+     * @return true if at least one subscription name is checked
+     */
+    public boolean hasSubscriptionNameChecked() {
+        return checkMap.containsValue(Boolean.TRUE);
+    }
+}

cave/com.raytheon.uf.viz.datadelivery/src/com/raytheon/uf/viz/datadelivery/subscription/SubscriptionTableComp.java

@@ -100,6 +100,7 @@ import com.raytheon.uf.viz.datadelivery.utils.DataDeliveryUtils.TABLE_TYPE;
  * Dec 03, 2012  1279      mpduff       Add ability to populate from a list of subscription names.
  * Dec 12, 2012  1391      bgonzale     Added a job for subscription retrieves.
  * Jan 07, 2013  1437      bgonzale     Added sort column direction updates.
+ * Jan 28, 2013  1529      djohnson     Disable menu items if no subscriptions are selected.
  * 
  * </pre>
  * 
@@ -120,7 +121,7 @@ public class SubscriptionTableComp extends TableComp implements IGroupAction {
      * Subscription action callback that is called when there is a table
      * selection.
      */
-    private ISubscriptionAction subActionCallback;
+    private final ISubscriptionAction subActionCallback;
 
     /** TableDataManager object. */
     private TableDataManager<SubscriptionManagerRowData> subManagerData;
@@ -756,11 +757,14 @@ public class SubscriptionTableComp extends TableComp implements IGroupAction {
             popupMenu.dispose();
         }
 
+        final boolean menuItemsEnabled = table.getSelectionIndices().length > 0;
+
         // Detail popup menu
         popupMenu = new Menu(table);
-        MenuItem item1 = new MenuItem(popupMenu, SWT.PUSH);
+        MenuItem detailsItem = new MenuItem(popupMenu, SWT.PUSH);
-        item1.setText("Details...   ");
+        detailsItem.setText("Details...   ");
-        item1.addSelectionListener(new SelectionAdapter() {
+        detailsItem.setEnabled(menuItemsEnabled);
+        detailsItem.addSelectionListener(new SelectionAdapter() {
             @Override
             public void widgetSelected(SelectionEvent e) {
                 handleDetails();
@@ -770,6 +774,7 @@ public class SubscriptionTableComp extends TableComp implements IGroupAction {
         if (subType == SubscriptionType.MANAGER) {
             MenuItem editItem = new MenuItem(popupMenu, SWT.PUSH);
             editItem.setText("Edit...");
+            editItem.setEnabled(menuItemsEnabled);
             editItem.addSelectionListener(new SelectionAdapter() {
                 @Override
                 public void widgetSelected(SelectionEvent e) {
@@ -780,6 +785,7 @@ public class SubscriptionTableComp extends TableComp implements IGroupAction {
             // Add the selected row to a subscription group
             MenuItem groupItem = new MenuItem(popupMenu, SWT.PUSH);
             groupItem.setText("Add to Group...");
+            groupItem.setEnabled(menuItemsEnabled);
             groupItem.addSelectionListener(new SelectionAdapter() {
                 @Override
                 public void widgetSelected(SelectionEvent e) {