TreePanel scroll bar issues with long item texts

[LukasP]

Hi!

I hope you guys can help me to figure out why this code is not working properly.
I am trying to render a TreePanel with some items which have long texts on it, so I would expect some scrollbars to appear if necessary, but they don't.

I am using FF 3.5.30729, GXT 2.1.1 and GWT 2.0.2.

public class MainEntryPoint implements EntryPoint {

    public void onModuleLoad() {

        ContentPanel panel = new ContentPanel();
        panel.setHeading("Content Panel");
        panel.setSize(200, 200);
        panel.setScrollMode(Scroll.AUTO);

        TreePanel tree = new TreePanel(new TreeStore());
        tree.setDisplayProperty("text");
        tree.setAutoHeight(true);
        tree.setAutoWidth(true);

        BaseTreeModel mLong = new BaseTreeModel();
        mLong.set("text", "This is a very long item text which causes some issues with the scrollbars on ContentPanel/ TreePanel");
        tree.getStore().add(mLong, false);

        for (int i = 0; i < 30; i++) {
            BaseTreeModel m = new BaseTreeModel();
            m.set("text", "SomeText");
            tree.getStore().add(m, false);
        }

        panel.add(tree);

        RootPanel.get().add(panel);

    }
}

The first model item's text is long so one should expect that a horizontal scrollbar should appear immediately. This does not happen for me.
If I then use the vertical scrollbar to scroll down to the end of the tree, I can find the scrollbar, but if I use it another one appears, resulting in a weird behaviour.

Does anyone have the same trouble?

I can not find any scrollbar-methods on TreePanel to change that behaviour, too...

Also see these screenshots:

[LukasP]

Ok, I just found out that the code works fine with IE. So it might be a Firefox-specific problem?

[sven]

Remove

 panel.setScrollMode(Scroll.AUTO);
tree.setAutoHeight(true);
        tree.setAutoWidth(true);

and add

panel.setLayout(new FitLayout());

To your code. That should do it but i have not tested it.

[LukasP]

Thanks sven, works like a charm!

Just one small thing: The horizontal scrollbar disappears as soon as the "long item" is not displayed anymore, so the scrollbar keeps appearing and disappearing when scrolling up and down the tree. I would normally expect to have it staying if at least one item on the tree is too long. Is this is a feature or a bug?

In my case FitLayout is fine for now, but how can I use other Layouts? Or do I always have to wrap TreePanel in some LayoutContainer with FitLayout?

Thanks so much for your quick reply!