We cannot be 100% sure generically (i.e. for all possible bindings available
with GObject Introspection) if bindings add their own reference to objects or
not. Clearly we have cases when they always do (Lua, Javascript), cases when
they do only in certain conditions (global Python variables) and cases when they
don't (Vala). What we know for sure is that in these script languages,
developers don't manually manage memory anyway. So the additional reference is
not their fact.
So let's just maintain a list of automatic memory managed binding languages,
among the few we officially support (i.e. the ones for which we have working
test plug-ins) and verify by executable extension if the plug-in is written in
one of these.
Both keeping a manually-updated list and verifying by extension are not so
pretty solution, but for now it will do.
… a GimpProcedureConfig for arguments.
This also factorizes the code to load metadata. By default, a GimpLoadProcedure
will try and load metadata from a file (if Exiv2 knows the format). The run()
function will be allowed to edit the GimpMetadata object but also the load flags
before it is actually attached to the image, allowing plug-ins to have custom
metadata handling code when needed.
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.
It's an ancient concept from ancient times when we didn't have URIs
and only filenames (not to speak of GFile), and actually even from
before the ancient time before that ancient time when we first had
ones and zeros, and only had zeros.
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/.
It's just too weird to be public. Remove its properties from the wire
protocol and from pluginrc. Instead, have all GParamSpecs' flags on
the wire and in pluginrc, so we can use stuff like
GIMP_PARAM_NO_VALIDATE.
Port the remaining few places to GIMP_PROC_ARG_STRING().
I'm sure something is broken now wrt UTF-8 validation,
will add tighter checks in the next commit.
And always pass URIs to all file procedures, the ones what didn't
register as "handles remove" will only ever get local file:// URIs.
Change all file plug-ins (also legacy ones) to expect URIs instead
of filenames, and convert to local paths in the plug-in.
The wire protocol should now be almost 100% clean of non-UTF-8 strings.
Implementing a shiny new GimpFileProcedure doesn't mean the libraries
we use to load/save files are automatically capable of handling remote
files, so we still need this flag.
which are GimpProcedure subclasses with API to register as load/save
handlers and their own kind of run functions that get their standard
arguments passed directly instead of packed into a GimpValueArray.
They also register their standard arguments themselves, which removes
quite some boilerplate from load/save plug-ins.
Remove gimpprocedure-private.[ch] because install() and uninstall()
are now virtual functions of GimpProcedure.
Jehan