Is there a good source for 3rd party QT GUI controls?

qt, qt-creator, qt4

Solution

Qwt is a source for graphing and technical components and Solutions Catalog has the property browser as well as many other useful widgets.

Also available are the Embedded Widget Demos, ofi-labs, and qt-labs.

ofi-labs is by a former Qt employee, the others are official.

Edit: Almost forgot, diagramming is covered by this example: GraphicsView - Diagram Scene

Problem

I have tried to find them through Google but haven't had much luck. I know the number of 3rd party controls is not as big as .NET or Java, but surely there are some out there better than what comes with the library?

Original source

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