2003-05-28  Sven Neumann  <sven@gimp.org>

	* app/app_procs.[ch]: wrap gui_libs_init() so we don't need to
	include gui.h from main.c

	* app/main.c: changed accordingly.

	* app/gui/gui.[ch]: added a GdkScreen parameter to
	gui_get_screen_resolution(). Use NULL if you want the default
	screen.

	* app/gui/preferences-dialog.c
	* app/gui/user-install-dialog.c: changed accordingly.

	* app/display/gimpdisplayshell-scale.c: use the monitor resolution
	stored in the GimpDisplayShell object.

	* app/display/gimpdisplayshell-handlers.c
	* app/display/gimpdisplayshell.c: get the monitor resolution for
	the widget's GdkScreen. Set it in the realize method so it gets
	changed when the image window is migrated to another screen.