The problem was that configure_event() is called each time the window size
changes, and each time the pixmap buffer is recreated and a new signal added
to the save button.
svn path=/trunk/; revision=24145
This new code adds a save button to the Statistics IO Graphs window and
is also reusable by any other code that uses GDK Pixmaps to draw graphs.
The Gdk-pixbuf library included in GTK is used for this save function.
svn path=/trunk/; revision=22166