I'm guessing this is a simple enough work around but I'm stumped:

Is it possible to determine from which component of container a popupmenu derives?

I currently have a loop that adds components to a JPanel adding a popupmenu to each component.
I guess I could alter the ActionCommand to identify each component uniquely?

but is there a simpler way?

I'm using:

newCourseView.setComponentPopupMenu(popup);

(newCourseView being a JPanel)

if I use the above implementation for the popup...how do i then access the old popup command where i could get x/y coords??

(since I'm thinking that maybe I can use "getcomponentAt(x,y)" to accomplish this?)

TIA
Michael

Edited by: choc_budda on Nov 5, 2009 4:12 PM

 

 

What about the methods of JPopupMenu
public void show(Component invoker, int x, int y)
and
public Component getInvoker()

Regards,
Stas

 

 

Im sorry...I saw those methods, but am unsure how to access them?

In the listener how do i get a reference to this?

e.getSource gives me the menuItem?

same with e.invoker?

apologies for my newbyness

perhaps if it were an innerclass??

Edited by: choc_budda on Nov 5, 2009 11:59 PM

 

 

When you show a popup for specified component passed in the method you then can obtain the component from getInvoker().

If you have popup menu just use invoker. If no but listener and event you can get MenuItem as source of event and find popup menu which is parent of the menu item. After that use the invoker.

Regards,
Stas

 

 

Thanks:

found it independently so here's what i have:

JMenuItem menuSelect = (JMenuItem)e.getSource();
	        JPopupMenu parentMenu = (JPopupMenu)menuSelect.getParent();
	        CourseText selectedCourse = (CourseText)parentMenu.getInvoker();

 

 

hii,

altogether:

class PopupListener extends MouseAdapter {
 
        JPopupMenu popup;
 
        PopupListener(JPopupMenu popupMenu) {
            popup = popupMenu;
        }
 
        @Override
        public void mousePressed(MouseEvent e) {
            maybeShowPopup(e);
        }
 
        @Override
        public void mouseReleased(MouseEvent e) {
            // here you can sets prereqiusities
            maybeShowPopup(e);
            // here you can built by "clear" prereqiusities
        }
 
        private void maybeShowPopup(MouseEvent e) {
            if (e.isPopupTrigger()) {
                popup.show(e.getComponent(), e.getX(), e.getY());
            }
        }
    }
 
    public void actionPerformed(ActionEvent e) {
        JMenuItem source = (JMenuItem) (e.getSource());
    }
 
    public void itemStateChanged(ItemEvent e) {
        JMenuItem source = (JMenuItem) (e.getSource());
    }
 
    protected String getClassName(Object o) {// Returns just the class name -- no package info.
        String classString = o.getClass().getName();
        int dotIndex = classString.lastIndexOf(".");
        return classString.substring(dotIndex + 1);
    }
 

... kopik

 

 

I wonder if (using OOP principles) it wouldn't be better to override whatever method is hidden away inside the .setComponentPopupMenu method, so that the call actually sends info about which component this popupmenu derives from??

if so...would that mean extending the popupmenu Class?