Hi guys!
I need a good idea to solve the following problem:

We have to write code for an operating unit (part of a machine) with a 240x128 LCD, some keys/softkeys and a jogshuttle. We need to display hundreds of different sceens (masks) with different types of display elements (text windows, bitmaps, input fields etc etc) to show the flow of a very complex operating sequence and let the user program this machine. [something like: IF you are in mask 37 AND the cursor is on field 12 AND you turn the jugshuttle to the right AND there is another selecteble field THEN highlight the next field (cursor on that field) OR IF the current field is an input field AND the input key is pressed bring the field into an input mode and allow the selection of input values using a list....]

I'm interested in how others code such program flows. One possible way is to implement a home made interpreter language as a module within the c-code to describe the organisation of all masks with all their actions behind the incoming system events.

Got open ears for good ideas !
:)

Olaf