CODEWITHSUNDEEP
javaswingjmenujmenuitem
Aviv Cohn
Aviv Cohn

Reputation: 17203

How to get the index of a JMenuItem in the JMenu?

I need to find the index of a specific JMenuItem in a JMenu so I can programatically insert() a new JMenuItem right before it. How can I go about doing that?

Upvotes: 3

Views: 3103

Answers (3)

George
George

Reputation: 6084

Here's a code sample of the same solution as suggested above:

JPopupMenu popup = new JPopupMenu();
popup.setName("popup");
JMenu jMenu= new JMenu("menu");
jMenu.setName("menu");
JMenuItem menuItem1 = new JMenuItem("sub1");
jMenu.add(menuItem1);
menuItem1.addActionListener(this);
popup.add(jMenu);

....

@Override
public void actionPerformed(ActionEvent e) {
    JMenuItem source = (JMenuItem)(e.getSource());
    try{
        JMenuItem menuItem = (JMenuItem) e.getSource(); 
        JPopupMenu popupMenu = (JPopupMenu) menuItem.getParent(); 
        Component invoker = popupMenu.getInvoker();  
        // Print MenuItem index against the total number of items
        System.out.println(popupMenu.getComponentZOrder(menuItem)+"/"+popupMenu.getComponentCount());
    }catch(Exception ex){
        ex.printStackTrace();
    }
}

Upvotes: 1

MadProgrammer
MadProgrammer

Reputation: 347234

Use Container#getComponentZOrder(Component) which should return the index position of the component within the container

Upvotes: 2

subash
subash

Reputation: 3140

In JMenuItem action listener, get the source and do something like this..

for(int i = 0; i < jmenu.getMenuComponents().length; i++){
     if(jMenu.getMenuComponent(i) == jMenuItem ){
              // so that i is index here...
     }
}

here jMenuItem is e.getSource()

Upvotes: 0

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