Re: [Gui4j-user] How to use simpleInternalFrame

[<ka...@we...>]

Hi Timo,

real MDI applications are not possible with gui4j at the moment because 
there's no support (yet) for JDesktopPane and JInternalFrame.

Since gui4j is expandable with respect to its component it would be 
possible to write support for a, say, <mdiDesktop> element containig 
<mdiFrame> elements.But that's not that easy without knowing the 
internals of the framework.

It's possible to dynamically set the visibility of each supporrted 
component. See the "visible" attribute described in the reference 
documentation under "Common toplevel attributes". For dynamic change of 
the visible attribute, you'll have to use events (see "Events" and the 
Expense Records example).

The toolbar component support vertical layout and icons. Simply use 
buttons with icons but no text as the children for a toolbar.

There's no concept in gui4j to build truly dynamic layouts. It's not 
possible to change the physical component layout after the xml 
description for a window has been read in. For simple dynamic layout 
changes that you know in advance you could use the cardLayout or switch 
components.

If the layout/content is only known at runtime, the only possibility is 
to create the complete xml description on-the-fly and open a whole new 
window using the created xml. For this you'll have to provide your own 
custom Gui4jResourceProvider and use Gui4j.setResourceProvider.

Hope this helps,
Kay

Timo Meinen wrote:

> Hi Kay,
>
> thank you for your response. Today I made enormous progress with the 
> gui4j  framework. Indeed, the missing line in the 
> gui4jComponents.properties was  the reason why my program didn't start.
>
> I successfully tried the simpleInternalFrame, too, but it isn't the 
> right  component behaviour I am looking for. I intended to create a 
> MDI  application, but I see it isn't possible with gui4j. Is there 
> another  'best practice'? Is it possible to set the visibility for 
> some components?  I want to have something like a 'main menu' (perhaps 
> a vertical toolbar at  the left side with icon-buttons), but without 
> having popups.
>
> Is it possible to have a region that can load other gui4j-components  
> dynamically?
>
> Thank you
> Timo
> me...@gm...