HBasic2 is an IDE for KDE based on Qt3. Its development stopped in 2007 so there was no Qt4 version ever.

I failed to compile it on the modern system, but the binary file seems to work. May be you, Timothy can modify the code sou it to compile and include it into your repository. 

The screenshot is here (I made it on OpenSUSE, but under Ubuntu it also works after using the alien utility):

http://opensuse-community.org/images/d/dc/HBasic2.png

This is the binary deb so you can evaluate what is it: 

http://deboteka.hotbox.ru/ubuntu/hbasic_2a-2_i386.deb

The source code is here:

http://downloads.sourceforge.net/hbasic/hbasic-2007-2a.tar.bz2?use_mirror=mesh