Easy-to-use GUI that is zoomable and pannable?

Question

Hello:

I am looking for a GUI toolkit that is easy to use and cross-platform. Another major requirement of the GUI is that it should support zoom and pan. For example, I should be able to zoom in on a picture and enlarge buttons.

Something like this:

http://eaglemode.sourceforge.net/video.html

But it should have Windows support also (which to the best of my knowledge Eagle Mode doesn't have).

From what I understand, QT is a good UI and it can draw right on top of the OGL window. I think it resets the matrix before drawing the buttons. If I can prevent that reset, the GUI can be zoomed along with the rest of the items. Is there a simple hack to do just that?

Thanks,

Answer 1

Take a look at Piccolo2D, which has Java and .NET bindings.

It is the successor of Pad++, which was well ahead of its time:

Answer 2

This is doable in Qt 4.4 and above using the Qt Graphics View Framework. It makes it very easy to make these types of interfaces, since Widgets can now be placed on the scene (QGraphicsScene) using QGraphicsWidget and QGraphicsLayout.

The framework supports zooming, panning, rotating, etc - with animation.