Scale growing mc to fit screen

Hey!

My first post here at Kirupa, however I´ve been a member for quite some time and learned lots while searching the forums.

I´m currently working on a zoom-image-gallery sort of thingy and I´m having problems with the scaling. I´m adding the source file, there is quite alot of code involved and I think it´s easier to just check the soure and compile it to experience the problem.

Thanks

// Rickard