Where to find open-source widgets for Qt library?

Question

I have found quite good stuff here. If you know other sites that have some good code for Qt library (some additional codes, good examples, except the Qt standard examples, of course), please share with us.

Answer 1

For plotting and technical purpose, there are Qwt and QtiPlot. There may be others, but often a self-made widget is faster, smaller, and better than what someone could find on the net (except qwt and qtiplot of course).

If you're looking to extend Qt a bit more, look into KDE. It is also (experimentally) available on Windows. It adds quite a bit of functionality, but also a lot of dependencies.

Answer 2

Also please look at Qt Solutions