SWTJasperViewer is a JasperReports viewer component for SWT/JFace based applications and Eclipse plug-ins. The viewer is designed with reusability in mind so it can suit as many projects as possible.
A cross-platform wxWindows class for running Ghostscript and manipulating the image it produces, plus an IDE/debugger for developing programs written in PostScript.
For a PostScript debugger, there is now also an Eclipse plug-in - see http://thomas-fritsch.github.io/psdt/