added GimpToolRegisterFunc, GimpToolRegisterCallback and

2001-11-20  Michael Natterer  <mitch@gimp.org>

	* app/tools/tools-types.h: added GimpToolRegisterFunc,
	GimpToolRegisterCallback and GimpToolOptionsNewFunc typedefs
	which are used to register tools.

	* app/tools/tools.c: put the register funcs in an array of
	GimpToolRegisterFuncs. Pass a Gimp pointer *plus* a
	GimpToolRegisterCallback (which is tool_manager_register_tool())
	to the tools' register functions.

	* app/tools/tool_manager.[ch]: added a GimpToolOptionsNewFunc to
	the parameters of tool_manager_register_tool(). Create the tool
	options here, not in each tool.

	* app/tools/paint_options.[ch]
	* app/tools/selection_options.[ch]
	* app/tools/tool_options.[ch]
	* app/tools/transform_options.[ch]: all _init() and _new()
	functions take a GimpToolInfo pointer now. The _reset() func needs
	to be set manually now.

	* app/tools/[all_tools].[ch]: changed accordingly:

	- pass GimpToolOptionsNewFuncs to the register callback.
	- don't create the tool options in the tools' _init() function.
	- removed all static tool options variables.
	- get the options from the tool system in the cases i missed
	  in my last commit.
	- added minor hacks to get rid of the static options pointer
	  in some pathological cases :) (i.e. the ink tool).

app/tools/gimpthresholdtool.h

@@ -68,7 +68,8 @@ struct _ThresholdDialog
 };
 
 
-void    gimp_threshold_tool_register (Gimp *gimp);
+void    gimp_threshold_tool_register (Gimp                     *gimp,
+                                      GimpToolRegisterCallback  callback);
 
 GType   gimp_threshold_tool_get_type (void);