I am building a program that allows user to draw lines, points and squares, and then from that drawing program generates SDL code capable of drawing exact same thing.
Started with that two days ago, hoping that someone interested in building that program is gonna join me 
I uploaded Code:Blocks project on GitHub:
Project is updated for better readability and easier use.
Project updated now line can be moved.
But implementation of that seems complicated i will try to make clearer.
Added some explanation how to use program in README on GitHub.
All drawn shapes are saved in array so code for drawing them can later be generated.
Can generate code now just for rectangles and lines
maximum 10 shapes xD
Didn’t do anything with point because it is just one pixel.
New update. Circle added.
It’s a good start. Good work!
Window with controls added.