Hello all,
Because I'd been stuck on the second goal for so long, I decided to get on to write the GUI subsytem, which was actually my third and final task for the midterm evaluation. I have written the paint_recolor_nodes( ) function successfully. Here is a screenshot:
Inline image 1

The black outlined, white colored (with color inside) are the intended nodes that will function in the final render. Now I'll move onto writing the events that trigger repainting and node dragging. I cannot work on these events making actual changes till the brick-wall issues are resolved. My mentor has promised he'll look into it by this weekend. :)
Till then those tasks are deferred. 

--
Arshdeep Singh
Third Year, Computer Engineering
Delhi Technological University
Ph: +91-9654115614
https://sites.google.com/site/adsingh1729/home