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Issue #2111: Prevent possible NullPointerException in GridCanvas's mouse

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handler when attempting to display context menu.

Change-Id: I87fd5e790364028986e1a7872f4adf747b78bfee

Former-commit-id: 4f6c293a7e [formerly 6b696c9e6a [formerly be9d6ed2d6c2a87afb5365abba0c9f09983550ec]]
Former-commit-id: 6b696c9e6a
Former-commit-id: 5490893942
This commit is contained in:
David Gillingham 2013-06-20 16:18:43 -05:00
parent 2184e50ce1
commit 30b2287996
1 changed files with 11 additions and 7 deletions
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18
cave/com.raytheon.viz.gfe/src/com/raytheon/viz/gfe/gridmanager/GridCanvas.java
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@ -113,6 +113,8 @@ import com.raytheon.viz.ui.cmenu.AbstractRightClickAction;
* 01/22/2013 #1518 randerso Removed use of Map with Parms as keys
* 03/28/2013 #1838 randerso Fixed selected time range when Select Grids When
* Stepping is enabled. Cleaned up deprecated warnings.
* 06/20/2013 #2111 dgilling Prevent NullPointerException in mouse handler's
* displayContextMenu() method.
*
* </pre>
*
@ -475,6 +477,11 @@ public class GridCanvas extends Canvas implements IMessageClient {
@Override
public void displayContextMenu(MouseEvent e)
throws GFEServerException {
if (menuMgr != null) {
menuMgr.dispose();
menuMgr = null;
}
super.displayContextMenu(e);
GridBar gridBar = findClickedBar(e.x, e.y);
@ -495,9 +502,6 @@ public class GridCanvas extends Canvas implements IMessageClient {
.getTimeConstraints().constraintTime(clickTime)
.isValid();
if (menuMgr != null) {
menuMgr.dispose();
}
menuMgr = new MenuManager("#PopupMenu");
if (!isEmpty) {
@ -608,11 +612,11 @@ public class GridCanvas extends Canvas implements IMessageClient {
menuMgr.add(action);
}
}
}
Menu menu = menuMgr.createContextMenu(GridCanvas.this);
menu.setVisible(true);
setMenu(menu);
Menu menu = menuMgr.createContextMenu(GridCanvas.this);
menu.setVisible(true);
setMenu(menu);
}
}
};