Re: [Java-gnome-developer] Java GDK

[Jonas B. <jb...@ni...>]

On Tue, 28 Oct 2003 07:00:31 -0500, Jeffrey Morgan=20
<Jef...@Br...> wrote:

>> Right now I'm having a lot of problems grasping how to use GDK. In
>> effect, what I want to accomplish is that I want to paint in a window.
>> Basically in the same way as I would use a javax.swing.JPanel and
>> override the paint() method. Can this even be done? As far as I can
>> tell, the GDK support isn't finished yet? Could anyone shed some light
>> into this?
>
> Prior to the GTK2 port the GDK implementation was fairly robust.
> During the port the primary focus was on the higher level functions
> and you are correct inyour assessment that the GDK layer support
> is not finished.  There is an example of drawing to a window using
> the low level GDK functions in src/examples/gtk/mandel but I believe
> it is currently broken.  It worked in the pre GTK2 days.

Elias, the way to do custom components in GTK2 is to have a DrawingArea=20
widget. It's present in java-gnome, too, but currently as Jeffrey said,=20
there's not much that has been done on this front, so you can't do much=20
with it yet, or should I say anything.. =3D)

Elias btw have you tried using glade-2 to design the UIs? It works great=20
with java-gnome. For tricky ui:s, you can still choose to create some of=20
the widgets by code.

However, as I got a need to write a custom component myself (a complex=20
graph widget for plotting all sorts of data) I thought that I could give=20
it a try to implement the missing methods, or at least the most important=
=20
ones. If you don't hear from me on this front in a few weeks then I=20
probably got too busy to finish it. Otherwise, you'll hear from me soon..=
=20
wish me luck :)

  - xkr47