1999-12-30  Miguel de Icaza  <miguel@gnu.org>

	* src/gnumeric-type-util.h (GNUMERIC_MAKE_TYPE): New macro, copied
	from Evolution.  We need to refactor our code in Gnumeric to use
	this macro.

	* src/workbook.c (workbook_do_destroy): Destroy the per-workbook
	context here.  Hardcoded to be a GUI context for now.
	(workbook_new): Create the context here.
	(workbook_command_context_gui): This routine is now the one that
	returns the command context.

	* src/gnumeric.h: Added CommandCOntext typedef here.

	* All files: renamed CmdContext to CommandContext.
	renamed command_context_gui to workbook_command_context_gui.

	* src/workbook-view.c: Removed the GUI_CmdContext class setup.
	* src/command-context.c: Replaced the ad-hoc object system with a
	GtkObject-based system.