auto zoom when patcher window is resized

Hello

i've done this little patch it works well but there's two things I don't like about it

-the qmetro to get the size of the window (is there a way to get it only when the window is resized by the user?)

-when you resize the window it offset from the origin and you have to rescroll it manually to x,y origin (is there a message to [thispatcher] to reset the offset to 0,0 or is there's a way to unable scroll bars?)

thanks a lot

I'm not not really familiar with js but if it is the only way i will take it!