Move/Rotate/Scale manipulator.

Some time ago I've got an idea of all-in-one manipulator to perform move/rotate/scale transformations without constantly jumping to mode buttons or using shortcuts.

Idea is pretty simple - it's just two cubes:

• Exterior one has flipped normals and controls rotation. Each side allows to rotate around single axis. 
• Interior cube controls movement and scale. Movement automatically restricted to axis or plane when you hover over different areas. In GEM I don't have non-uniform scaling (because of compact quaternion/translate/scale representation with 8 floats), so corners simply control uniform scale. But you can adjust this for your needs.

It feels pretty natural and obvious to someone who sees it for the first time. You can see it in action below (sorry for mouse cursor position bug - capturing software issues, editor shows everything in place):


Here is a screenshot:

Feel free to ask on "max.dyachenko [at] gmail.com" if you want to get mesh/texture/manipulator code.