C-frame is a specialized 2D IDE for cross-platform 'system programming' (development on Windows/Linux/UNIX). You can convert an existing plain ASCII C source file to a CFR format (displayed in an editor as frames). It has compiler support for MSVC++, gcc, and gcc for Win32. It supports GTK+, GTK+ for Win32 with MinGW, and X11 software development.
A ready-to-use architecture to ease the creation of MDI-style applications in Java.