lay_out_file_picker = function()
	local x,y = 0,0
	for _,n in ipairs(Global_state.file_picker) do
		local x2,y2 = compute_layout(n, x,y, Surface)
		if x2 < 1000 then
			x = x2 + File_picker_margin
		else
			x,y = 0,y2+File_picker_margin
		end
	end
end