🚀 go-pugleaf

1.  JinternalFrame
2. a refererence to the frame
3 setJmenu bar.

it goes like this
code............
   create internal frame
   create object(pass frame)
more code

* note when this class (above) is destroyed or made null you will no longer have
a pointer to this object below, so make sure you destroy it too.


public create object(jinternalfrrame value)
blah
blah
set jmenu( value)
blah


Nadia Akrour wrote:

> Thanks for your answer. But I'm afraid I 'm missing some points :
> 1- You said you use menubar inside frames,do you mean JInternalFrame or just
> Frame ?
> 2 -What is the class type you pass the frame to ? Is it a class which extends
> JInternalFrame or a class with only a reference to the frame ?
> 3- How do you add the menubar to the frame ? Do you use setJMenuBar or just
> add(mymenubar) ?
> Thank you for all the help and explanation you can give me.
>
> For information here is the part of the code concerned. the main frame's
> method newDocument() adds an internal frame to the desktop pane. We create
> some MyInternalFrame objects and then close them. We call the GC and all are
> GCed. But this doesn't work if the MyInternalFrame contents a menubar.
>
> // main frame class
> public class TheFrame extends JFrame {
>     JDesktopPane desktop;
> ...
> ...
>     public void newDocument() {
>           TheInternalFrame doc = new ThenternalFrame(this);
>           desktop.add(doc, DOCLAYER);
>           try {
>               doc.setSelected(true);
>           } catch (java.beans.PropertyVetoException e2) {}
>      }
> }
>
> // internal frame class
> public class TheInternalFrame extends JInternalFrame  implements
> InternalFrameListener{
>     JMenuBar m_MenuBar;
>     TheFrame m_f;
> ...
>     static int openFrameCount = 0;
> ...
>     public TheInternalFrame(TheFrame f) {
>      super("", true, true, true, true);
>       m_f = f;
>      openFrameCount++;
>       setTitle("Untitled Message " + openFrameCount);
>
>      top = new JPanel();
>      top.setBorder(new EmptyBorder(10, 10, 10, 10));
>      top.setLayout(new BorderLayout());
>
>       // Panel menubar
>       m_MenuBar = new JMenuBar();
>       setJMenuBar(m_MenuBar);
>
>       setContentPane(top);
>       pack();
>       addInternalFrameListener(this);
>       setLocation( offset * openFrameCount, offset *openFrameCount);
>     }
>
>   // ------------
>   /** finalize */
>   // ------------
>   public void finalize() throws Throwable {
>       System.out.println("TheInternalFrame " + getTitle() + " being GCed !");
>     super.finalize();
>   }
>
>   // ------------
>   /** dispose */
>   // ------------
>   public void dispose() {
>     System.out.println("TheInternalFrame " + getTitle() + " disposed !");
>     top.remove(m_MenuBar);
>     m_MenuBar = null;
>     top = null;
>     m_f = null;
>     super.dispose();
>   }
>
> }
>
> Steve Waters wrote:
>
> > we use menubar inside frames, what we do is pass to the constructor of the
> > class the frame and then in the class we create the menubar and add it to
> > the frame, that way we can change the menu at any time, and set the class
> > object that create the menu to null to allow the garbage collector to free
> > up the memory. Works for us.
> >
> > Steve
> >
> > Nadia Akrour wrote:
> >
> > > Hi all,
> > > I would like to finalize internal frames.
> > > It works only when the internal frame does not contain a menu bar. It
> > > seems like the SetJMenuBar() function make the menu bar referenced by
> > > the frame (rootPane layaredPane or what ?)  but how ? What can I do to
> > > break this link ?
> > > All my internal frames have a menu bar so they will not be freed and my
> > > appli will go out of memory quickly. So it's a very critical problem for
> > > me.
> > > Please any help would be very appreciated. Thanks in advance.
> > > Nad.