[Qt-interest] Animated show/hide transitions for QFrame

[Dave Smith]

I have a few QFrames laid out vertically. Within each QFrames are 
various unique widgets laid out in a grid. Between the QFrames I have 
placed buttons for showing and hiding them individually. When the user 
clicks one of the buttons, I call show() on the QFrame below it and it 
appears, moving the QFrames and buttons below it downward.

It works great, but it's so 1999.

It's 2009 so I want to animate it.

Rather than having each QFrame appear immediately on clicking the 
button, I want it to "grow" into place, optionally fading from 
transparent to opaque as it grows to its full size. This would be much 
like what happens when you drag QToolbars around and spots animate open 
for you to drop them in.

Any ideas how to accomplish this tastefully? (i.e., reuse code from Qt 
as much as possible)

Thanks in advance!

--Dave