thumbshot creator with webkit and qt4 in ruby

We need a Class which creates png-thumbnails of public URLs (i.e. [login to view URL]) or local HTML files. The renderer should NOT create any temporary files and should return raw png-data. It should depend on ruby 1.8, RMagick 2 (and its dependencies) and the following debian/ubuntu-packages: libqt4-ruby libqt4-webkit There is a similar script in python we are using at the moment: [login to view URL] Some ruby/webkit examples (unfortunately they depend on OSX): [login to view URL] [login to view URL] The Thumbshooter-class should as follows: generator = [login to view URL]( :screen => '800x600', :resize => '200x150', # if given resize with RMagick, otherwise do not resize ) # render a public website png = [login to view URL]('[login to view URL]') # render a local file png = [login to view URL]('[login to view URL]')