and in an attack of madness, changes almost all file plug-in
code to use GFile instead of filenames, which means passing
the GFile down to the bottom and get its filename at the very
end where it's actually needed.
becuse some plug-ins really want the ID for good reasons and not the
object, and code looks so much nicer when the entire list of arguments
is extracted using the macros.
Turn all ID param specs into object param specs (e.g. GimpParamImageID
becomes GimpParamImage) and convert between IDs and objects in
gimpgpparams.c directly above the the wire protocol, so all of app/,
libgimp/ and plug-ins/ can deal directly with objects down to the
lowest level and not care about IDs.
Use the actual object param specs for procedure arguments and return
values again instead of a plain g_param_spec_object() and bring back
the none_ok parameter.
This implies changing the PDB type checking functions to work on pure
integers instead of IDs (one can't check whether object creation is
possible if performing that check requires the object to already
exist).
For example gimp_foo_is_valid() becomes gimp_foo_id_is_valid() and is
not involved in automatic object creation magic at the protocol
level. Added wrappers which still say gimp_foo_is_valid() and take the
respective objects.
Adapted all code, and it all becomes nicer and less convoluted, even
the generated PDB wrappers in app/ and libgimp/.
that make dealing with value arrays easier and shorter, e.g.
g_value_get_boolean (gimp_value_array_index (args, n)):
becomes:
GIMP_VALUES_GET_BOOLEAN (args, n);
which looks much like gimpconfig-params.h and contains macros
(e.g. GIMP_PROC_ARG_BOOLEAN() and GIMP_PROC_VAL_BOOLEAN()) for all
GimpProcedure argument and return value types supported by the
protocol, and makes the boilerplate of setting up a procedure more
readable and much less indented.
This file is C-only and not introspected.
