Develop GUI using GTK+ ,Glade for uav Ground station

[nipunreddevil]

I intend to develop a GUI using gtk+ and glade .
It should have the following capabilities:
.moving map display like google earth with waypoints and current uav position
.receive and send data serially
more standard gui features
.display a virtual cockpit like in flight simulators.

However i am very new to this all.
What shall be my approach?
I will be using c as a language.
Any help?
Anyone interested in this or other projects do contact me.

[Rubberman]

For something of this complexity, start with the basics - design and model. Get a UML modeling tool and start putting your thoughts into a model of the system you want. There are tools of reasonable price (some free for non-commercial applications) that will also convert your model to code (model-driven design) or in some cases will even execute your model so you can verify it before committing to code. I use a tool from Sparx Systems called Enterprise Architect that can do all of that, and generate code for any number of languages including C, C++, Java, Python, C#, etc. Unfortunately it only runs under Windows, although the code it generates is platform independent - I use it to design, model, and generate C++ code for Linux applications all the time.