Re: [Java-gnome-developer] StatusBar issue + 2 questions

[Ray A. <ra...@do...>]

On Sun, 2004-10-24 at 21:49 -0500, Fred Blaise wrote:
> Hello all
> 
> I am using the 2.6 libs from debian unstable. I am using eclipse 3.0 for
> my IDE.
> 
> Questions first:
> 1) I have created a Window with glade, and I am tying it in my java code
> via LibGlade. No problem thus far, except that I don't understand that
> example
> (http://cvs.gnome.org/viewcvs/java-gnome/libglade-java/doc/examples/glade/LibGladeTest.java?rev=1.8&view=markup)
> 
> I have tried it in my own code, but with no success. I have to do
> something like the following to be able to do something with my widgets:
> 
> gladeXml = new LibGlade("/home/fblaise/Glade/jgLDAP/jgldap.glade",this);
> cboExistingConn = (ComboBox)gladeXml.getWidget("cboExistingConn");
> 
> If I don't getWidget() my object like this second line shows, despite
> the fact my widget has the same name in Glade and in my code, I just get
> a NullPointerException when I invoke anything on it. If anyone can shade
> some light.. I guess it'd very cool to not manually map each widget, and
> let LibGlade do it for you.

I think what is happening in that particular example (and the reason you
don't have any getWidget()s in the code and yet it still works) is that
the glade file used in the example defined the callback functions it
needed and so libglade would auto attach them with those found in the
java code. Now, you still have to getWidget() if you want to do any kind
of widget manipulation cause the only things auto connected are
callbacks (which libglade will complain about if they don't exist in
your code).

> 
> 2) My glade project includes several windows. All my windows pop up when
> I start the program. Is there anyway to prevent that? 

>From glade(-2), for each window, choose the "Common" tab from the
"Properties" window and set "Visible" to "No". From your code you'll
then use the show[All]() and hide() methods on the desired window to ...
you know!

> 
> 3) The StatusBar problem:
> When I try to map my status bar like this:
> 
> statbar1 = (StatusBar)gladeXml.getWidget("statbar1");
> 
> It tells me this:
> could not create widget: org.gnu.gtk.Statusbar

If I recall this one is one of those gnome issues. There are special
"helper" classes for the Appbar, as it's called in libgnome-java, to
help you get the statusbar. I'd suggest reading the libgnome-java
javadocs a couple of times... It took me more than a couple times to get
it the first time...

> 
> Thanks :)
> 
> fred
> 
> 
> 
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-- 
Ray Auge <ra...@do...>