Hi, i ve just completed a little project where a tablet is connected to an arduino then connected to processing and output drawing made from the tablet to the processing draw window (320x240) that simulate a lcd that i ll receive soon. The drawing are looking fine, but i want to add a feature, i want to whenever a line is finished ( or maybe after i press a key, or event ) the drawing resize itself to fit the entire lcd. but can work also backward, if i start to add line outside the the range it scales back to fit with the new drawing.
Any idea on how i could achieve that on arduino or processing laguage ?

Thanks for anyhelp.