Veil LoadingImage or LoadingPanel over JFrame

Is there any component开发者_如何学C in Swing(X) by which we can place a veil loading image over a panel or frame making it transparent during some lengthy background processing?

Few examples of Romain Guy's work:

Chapter 9 of “Filthy Rich Clients” book, with downloadable code

SwingFX: Pretty Progress Panels

Glasspane Painting

GlassPane Intercepts

And other example:

GlassExample

You're looking for the Glass Pane, work through the tutorial here and the relevant section here

You need to add a glasspane to the frame, thats right. But you also can use SwingX' JXFrame and simply set a waitpane and activate it when a loading action starts.
Have a look at the API