Use direct GType comparisons where possible, special case layer
because it has core subclasses but only one PDB type, special case
display because it's not visible from app/plug-in/, make code for
GPParamDef and GPParam look the same.
Turn GimpPlugIn into the main factory for all proxies and keep the
main hash tables there. The hash tables keep the initial reference.
For each GimpProcedure::run(), have s "sub-factory" which hands out
proxies to the actual procedure code. Each run() has hash tables of
its own which hold additional references. When run() is done, get rid
of its hash tables and their references, *and* drop the main plug-in
reference counts from the global hashes if the proxies' refcount has
dropped to one.
The JS and Python 3 had to be ported to the new GimpImageProcedure API.
The Lua one was still using the old ID API hence was broken. Also not
sure why run_mode enum has become a string in Lua with the new
GimpImageProcedure API (probably some automatic conversion happening
during the C to Lua binding?), but well… it works like that, so what.
Sync also the late changes from the C goat exercise, like for instance
not returning an error when selection is empty as well as keeping the
order of calls to be the same across the 4 supported demo scripts.
This fixes:
> warning: source file 'images/imagemap-icon-images.c' is in a subdirectory,
> but option 'subdir-objects' is disabled
And similar warnings.
If I get it correctly, archlinux bumped the mypaint-brushes package to
v2, which broke our CI. The v1 and v2 brushes are not the same, and they
are not even compatible (GIMP only supports v1 brushes so far). These
should be different packages, hence the incremented major versionning.
For the archlinux change, see also:
https://git.archlinux.org/svntogit/packages.git/commit/trunk?h=packages/mypaint-brushes&id=dfd032b3aab40a46c751bd47713fb82bf11bd984
Let's just install the brushes ourselves from the correct branch.
With this kind of changes, as well as the weird patches they do when
they rename the pkg-config file of libmypaint, I think we should
consider not rely on this distribution for our CI.
It is theoretically possible for an id to be reused. Normally here this
should not happen, since the previous item would have been removed from
the hash table anyway, when it got destroyed. Let's still be thorough.
This means that images' ownership is not given to caller in particular.
libgimp will now keep a reference of all GimpImage-s it creates and
return this same reference if called again. It also means that you can
now compare images by pointer comparison (as 2 GimpImage objects
representing the same image ID will be equal).
Obviously as a side effect, gimp_image_list() is changed to (transfer
container) as you must only free the container now, not the elements.
Also various other functions creating new images are now (transfer none)
too.
Long-time plug-ins will have to be taken in consideration in a further
step (we currently never free GimpImage for destroyed images in
particular).
PyGObject seems to have at least 3 syntaxes to create object properties.
Though the one I used previously was apparently the recommended syntax,
it was clearly a bit messy and not clear. This alternative syntax ends
up much more compact, really look alike the C-style, which is a good
thing and is very visual. From what I can see, we should also override
the get|set_property() methods, but since we are not going to actually
set any value (this is only a workaround to make a GParamSpec), it seems
to work fine without.