This is meant to obsolete GeglParamColor with at least an additional argument
has_alpha which we need in GIMP. It allows to advertize when a parameter wants
an opaque color, which in particular means we know when displaying a GUI to pick
colors with alpha or not.
There are no plug-ins which uses GimpRGB for procedure argument, nor is there
any base PDB procedure. We don't pass this type anymore through from/to
core/plug-ins. So let's clean the whole code out as a next step to get rid of
GimpRGB from our codebase!
Since the color space invasion, GimpRGB
properties do not create widgets anymore.
For Python plug-ins, we need to add
GeglColor properties as GObjects with
GeglColor value types as a workaround.
This patch does this and updates the
Foggify plug-in with the new datatype.
Though I had already implemented passing GeglColor through the PDB, it was not
complete. In particular, the protocol was not able to pass GeglParamColor specs.
Fixes:
> LibGimp-WARNING **: 16:06:09.451: _gimp_gp_param_def_to_param_spec: GParamSpec type unsupported 'GeglParamColor'
This is part of the fix to issue #10811, though it's not complete yet.
In particular, the Curves, Levels and Operation tools method implemented
are updated. Also GeglColor arguments in GEGL operations are not
transformed into GimpRGB arguments anymore in GIMP. GeglColor GParamSpec
stay GeglColor now.
These will replace the int arguments used in place of enums. The problem of int
arguments used as list of choices is that it makes calling PDB functions very
opaque. This is especially bad when a list is long, so you constantly have to
refer to the documentation to understand what a series of numbers mean in
argument lists.
And the second issue is that plug-in developers have to manually maintain a list
of values both in the GUI and in the documentation string. This help text may
get out-of-sync, may end up with missing values or whatnot. Also if it is used
as tooltips, it makes for very weird tooltips in the graphical interface, with
an overlong technical list of int-values mapping which should ideally only be
made visible in the PDB procedure browser listing.
GLib has a specific type for byte arrays: `GBytes` (and it's underlying
GType `G_TYPE_BYTES`).
By using this type, we can avoid having a `GimpUint8Array` which is a
bit cumbersome to use for both the C API, as well as bindings. By using
`GBytes`, we allow other languages to pass on byte arrays as they are
used to, while the bindings will make sure to do the right thing.
In the end, it makes the API a little bit simpler for everyone, and
reduces confusion for people who are used to working with byte arrays
in other C/GLib based code (and not having 2 different types to denote
the same thing).
Related: https://gitlab.gnome.org/GNOME/gimp/-/issues/5919
Simplifies chooser widgets (e.g. GimpBrushSelect) by eliminating attributes (e.g. opacity) of chosen resource.
See #8745, but this commit fixes that by first refactoring the code.
Refactors GUI widgets (e.g. GimpBrushSelectButton and GimpBrushSelect etc.)
Refactor by "Extract class" GimpResourceSelectButton from GimpBrushSelectButton etc.
This moves common code into an inherited class (formerly called GimpSelectButton)
but the subclasses still exist.
The subclasses mainly just do drawing now.
Refactor by "Extract module" GimpResourceSelect from GimpBrushSelect etc.
Moves common code into one file, generic at runtime on type of GimpResource,
that is, the new code dispatches on type i.e. switch statements.
In the future, when core is changed some of that can be deleted.
The files gimpbrushselect.[c,h] etc. are deleted.
The module adapts the API from core to the API of callbacks to libgimp.
Note that core is running the resource chooser (select) widgets remotely.
Core is still calling back over the wire via PDB with more attributes
than necessary.
The new design gets the attributes from the resource themselves,
instead of receiving them from core callback.
The libgimp side adapts by discarding unneeded attributes.
In the future, core (running choosers for plugins) can be simplified also.
Fix gimp_prop_chooser_brush_new same as other resources.
Finish changes, and clean style.
Annotations
So procedures can declare args and GimpProcedureDialog show chooser
widgets
Fix so is no error dialog on id_is_valid for resources
Palette.pdb changes and testing
Memory mgt changes
Gradient pdb
Font and Pattern tests
Test brush, palette
Cleanup, remove generator
Rebase, edit docs, install test-dialog.py
Whitespace, and fix failed distcheck
Fix some clang-format, fix fail distcheck
Fix distcheck
Cleanup from review Jehan
GLib has a specific type of NULL-terminated string arrays:
`G_TYPE_STRV`, which is the `GType` of `char**` aka `GStrv`.
By using this type, we can avoid having a `GimpStringArray` which is a
bit cumbersome to use for both the C API, as well as bindings. By using
`GStrv`, we allow other languages to pass on string lists as they are
used to, while the bindings will make sure to do the right thing.
In the end, it makes the API a little bit simpler for everyone, and
reduces confusion for people who are used to working with string arrays
in other C/GLib based code (and not having 2 different types to denote
the same thing).
Related: https://gitlab.gnome.org/GNOME/gimp/-/issues/5919
… object arrays.
We were not supporting duplicating object pspec for no good reason. Well
maybe the reason was that libgimpconfig does not see these types which
are in libgimp. But then the trick is to compare by name.
As for object array, they are present as subtypes of GimpArray specs.
Yet most GimpParamSpec*Array-s are subclass of GimpParamSpecArray but
GimpParamSpecObjectArray are their own GParamSpecBoxed subclass (same as
the Gimp*Array-s are just typedef-s of GimpArray but GimpObjectArray is
its own boxed type).
So I had to move the object array test as its own case to fix support.
Finally do not ignore anymore any type in gimp_config_class_init(). When
we create a GimpConfig, we want to know when a type is not implemented
as parameter (and if it's a well known type, we need to implement it).
Still the same problem as ever with the Python binding where we have a
hard time creating GParamSpec, hence we make them from object
properties.
See: https://gitlab.gnome.org/GNOME/pygobject/-/issues/227#note_570031
But then again, the Python binding way to create GObject properties does
not seem to give us a way to use our custom param types (or I didn't
find how). So when I create a property with Gimp.RGB type in Python, it
doesn't appear as a GIMP_PARAM_SPEC_RGB to our C code, but as a
G_PARAM_SPEC_BOXED. So my trick is to check the value type instead.
Note that I check the default value, but in reality it doesn't seem to
work much either. Better than no support at all anyway.
It isn't being used by any plug-in or any code in GIMP at all even.
Let's get rid of it while we can still break API, so we can cut down on
all the complexity of the gimp-param stuff a bit.
It now supports all GParamSpecs possible on the wire protocol, except
the ones that are implemented in app/ and libgimp/ (image, drawable,
...) and are not visible to libgimpconfig
