Don't clear the window on an expose event. On draws, just clear the

Don't clear the window on an expose event. On draws, just clear the

Fri Mar 27 17:58:41 1998  Owen Taylor  <owt1@cornell.edu>

	* gtk/gtkhandlebox.c (gtk_handle_box_paint): Don't clear
	the window on an expose event. On draws, just clear the
	portion we are redrawing.

	* gdk/gdkfont.c (gdk_fontset_load): Corrected calculation
	of fontset ascent/descent.

	* gtk/gtkwidget.[ch]: Added new function to show a toplevel
	window and wait for it to be mapped, gtk_window_show_now ()