Benoît Knecht authored Dec 13, 2012 and Sebastian Ramacher committed Dec 13, 2012

The width of the vertical scrollbar (if there is one) needs to be
substracted from the width of the GtkScrolledWindow in order to obtain
the correct dimensions of the view area.

See issue 27 <http://bugs.pwmt.org/issue27

>.

It also deals better with documents where pages don't all have the same
size.

Reported-by: Andreas Weinlich <business@weinlich.org>

Signed-off-by: Sebastian Ramacher <sebastian+dev@ramacher.at>