Re: [Tm4j-tmnav-dev] running tmnav on applet

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Hi Rinalldo

You also need to call show() in TMNav. (Its not good design that this
mathod does initilisation stuff :(). 
And you probably need to comment out line 170 of TMNav where
TMNavMainFrame.show() is called.

After commented out, try this:

TMNav app = TMNav.getInstance();
app.show();
TMNavMainFrame frame = app.getFrame();
frame.show();

Hope that helps
c

Am So, den 17.10.2004 schrieb Rinalldo Yasahardja um 12:09:
> Hi Christoph, thank you for your reply
> 
> Its just returning the TMNavMainFrame which is inside the TMNav.
> 
> a simple method...
> 
> in TMNav.java:
> 
> public TMNavMainFrame getFrame(){
>    return frame;
> }
> 
> thanks heaps in advance
> 
> On Sun, 17 Oct 2004, Christoph Froehlich wrote:
> 
> > Hi Rinalldo
> >
> > could you send me your implementation of TMnav.getFrame()?
> > Thanks
> > c
> >
> >
> > Am So, den 17.10.2004 schrieb Rinalldo Yasahardja um 11:40:
> >> Hi Christoph, thank you for your reply
> >>
> >> This is also the first time for me to convert a stand alone application
> >> into applet, so I am still working out the solution.
> >>
> >> In my previous experience in using applet, basically all you have to do is
> >> have a frame or anything that you want to display gets constructed
> >> properly in the applet class. Then make the applet class "show" that
> >> frame. Since tmNav has a frame called TMNavMainFrame in which every panels
> >> and menus are included (based on my understanding of the source code), I
> >> assume all I have to do is create a TMNavMainFrame class variable in the
> >> applet class and constructs it exactly like the TMNavMainFrame is
> >> constructed in the tmNav.
> >>
> >> I assumed that all I had to do was to set the TMNavMainFrame in TMNav not
> >> to show anything and show TMNavMainFrame which is inside the applet
> >> class instead, however I kept getting NullPointerException.
> >>
> >> Even after I put additional method in TMNav class called getFrame() which
> >> returns TMNavMainFrame inside TMNav class, it still wouldnt work. So I
> >> have the following:
> >>
> >> class myApplet extends Applet{
> >>    TMNavMainFrame test = null;
> >>    TMNav application = null; // must have this
> >>
> >>    //init must be overridden
> >>    void init(){
> >>      //basically contains what is inside of the main function in TMNav
> >>      //most important are:
> >>      // application.getInstance().makeInstance();
> >>
> >>      // application.getInstance().show();
> >>      // if the show function is called, then TMNav runs on separate window
> >>      // since i want the frame to be displayed in the applet, it was turned
> >>      // off
> >>
> >>      test = application.getInstance().getFrame();
> >>      test.show();
> >>    }
> >> }
> >>
> >> with this way, the getFrame() method is somehow returning null and hence I
> >> got the NullPointerException (it is supposed to return TMNavMainFrame
> >> inside TMNav) and since I called it after everything was constructed
> >> properly (that is, after the show() function is normally called in the
> >> main function), that I have no idea why it is returning null.
> >>
> >> any comments ?
> >>
> >> On Sun, 17 Oct 2004, Christoph Froehlich wrote:
> >>
> >>> Hi Rinalldo,
> >>>
> >>> I've never developed an applet  so I'm just guessing, but I think that
> >>> you are on the right track. TMNav creates on startup a JFrame that is
> >>> used as its base container.
> >>>
> >>> I just had a look at the code and I think it shouldn't be too difficult
> >>> to make TMnav use a given java.awt.Container to use at its base
> >>> container. If it turns out to be fruitful, I would do a refactoring, to
> >>> enable the use of TMNav as an applet.
> >>>
> >>> Nevertheless, some questions come to my mind:
> >>>
> >>> When developing an applet, are you creating the basic container by your
> >>> own, or is it provided by the enviroment (browser, appletviewer)?
> >>>
> >>> What is about Menubars in applets. Are they supported?
> >>>
> >>> TMnav sometimes opens new frames for some features. (TologQuery, several
> >>> dialogs). How do you deal with the concepts of opening dialogs in
> >>> applets. I think you are not allowed to open a window from an applet, or
> >>> are you?
> >>>
> >>>
> >>> Hmm. I'm not really decided, whether it is possible to refactor TMNav
> >>> without extravagant expenses. What do you think?
> >>>
> >>> bye
> >>> c
> >>>
> >>>
> >>> PS: If your sole target is to get xtm displayed as a graph in an applet,
> >>> you may have a look a Jens Kaschniks Hypergraph-Project (for kings &
> >>> queens: http://hypergraph.sourceforge.net/examples_tm_kaq.html)
> >>>
> >>>
> >>>
> >>> Am So, den 17.10.2004 schrieb Rinalldo Yasahardja um 9:20:
> >>>> Hi, I am planning to make tmnav running on applet so I can share work on
> >>>> the server, that is, so my teammates can directly look at xtm files on the
> >>>> server using tmnav. The catch is, now tmnav runs on separate window. So
> >>>> when I viewed the applet using apppletviewer, the applet window said
> >>>> "Applet loaded" but tmnav is on its own window (which makes sense since it
> >>>> was a stand alone application anyway). Hence there are 2 windows opened.
> >>>>
> >>>> However, when i tested it with html page, the applet did not show anything
> >>>> on the webpage. Is it possible because of the fact that tmnav runs on its
> >>>> own window and NOT on the applet window ?
> >>>>
> >>>> anyone know how to fix this ?
> >>>>
> >>>> thanks heaps in advance
> >>>>
> >>>>
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> >>> Christoph Froehlich <cf...@fo...>
> >>>
> >>
> >>
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> >
> 
> 
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