Hi Martin, yeah I thought you would get a kick out of that one! :) It's pretty funny how the UI actually functions when that rotation is going on if you can manage to actually click on things.

> i expected the whole display to rotate by steps of 45 degrees.

The sort of top level layout is basically a custom layout mechanism, that level is not handled by HTML, mostly because the viewport 3D display area is pretty much a separate thing from the GUI / buttons type area.

The top level layout handles a kind of generic "panel", and there can be ViewPanel that hold the viewports, and UIPanels that hold HTML content. Things like dialogs and flyout menus just have one UI panel in them.

This structure actually ended up helping quite a bit when I did the big transition from IE to WebKit - MoI v3 (and v2.52) use a completely different HTML engine for the UI panels than MoI v1 and v2.0.

- Michael