Resolves #11354

Due to improvements in the text API, we have to pass a GimpFont
object as the last parameter of gimp-text-get-extents-font rather
than just a String.

These files has been generated by the installer scripts for historical reasons.
Now that we have full-blown local builds and the upcoming MS Store version,
this pervasive pratice can't continue since it creates disparity between builds.

Resolves #11337

Per Bruno Lopes, we should extend aefdb84b to also cover
dropdown box arrows and GimpSpinScale buttons.

When closing the Page Setup dialog we had warnings and criticals in
the terminal.
The cause for this was that we were looking for the temp procedure
to notify the print plug-in. However, this temp procedure is only
installed if the print plug-in is running, not when running the
Page Setup directly, in which case it is not needed.

We now check if the procedure is valid (meaning the print plug-in is
running) before calling the temp notify procedure.

Resolves #11324

Similar to 403af188, we needed to update function calls
that assumed they were receiving a GimpRGB struct rather
than a GeglColor object. Future plans including adding Gegl
functions to retrieve HSV and HSL automatically, rather than
using gegl_color_get_bytes().

Making sure not only that the PDB passes correctly the number of colors, but
taking one random color in the array and verifying it is correct.

Anders Jonsson authored Apr 18, 2024 and Jehan committed Apr 18, 2024

Fixes some scripts, followup to
c92cf7e8

Removes an index that was needed to GimpRGB, but no longer
valid now that gimp_palette_entry_get_color () returns a GeglColor
object. Also, fixed an issue in Interactive Mode where the first
valid palette would be used for every other attempt, no matter which
palette you clicked on.

Switch to using gimp_item_convert ()
instead of gimp_item_duplicate () so that
the filter mask can be properly associated
with a new image when copy/pasted.

Previously, filters were lost when copying
individual layers. This patch copies them
to the clipboard image on cut or copy,
then copies them back to the pasted
image.
It also fixes an issue where filters would
be merged down if a selection was
copied instead of the entire layer.

Color propwidgets now use GeglColor only.

We don't need to convert GimpRGB to GeglColor now as we work directly with
GeglColor!

The comment I had written back then was wrong. Meson in fact can create an env
object from another with a simple assignment (which copies the object, rather
than pointing to a same object), per the answer which has been given to me in:
https://github.com/mesonbuild/meson/issues/13045

This allows to have a properly separate environment (when using GIMP as a build
tool, we don't want to load the test files).

We are using `gimp_image_set_file` to set the filename, which
requires an extension, not doing so caused an error.
So let's add .xcf to all compose filenames.

When decomposing, the plug-in sets the filename without changing the
extension. However, gimp_image_set_file requires the filename to be
an .xcf file.

To fix this we simplified `generate_filename` to always add an
.xcf extension.
While doing this we also fixed a critical that happened when no
filename was set (new image), by testing `gimp_image_get_file` for
being NULL first.
When no filename was set it also didn't use the type when
config_as_layers was set, this is also fixed.

Resolves #11334

GBR, GIH, and PAT have internal save functions which are not meant
to be run directly. However, they were showing up in the Search dialogue
as valid options. This patch adds an additional check for "-internal" to
prevent users from accidentally running them, as they only give a warning.

The whole action name prefixing will definitely need to be straightened up in
our codebase at some point (differenciating the global actions and the local
ones).

Extends aefdb84b to all buttons with images.

Resolves #11337

"gtk-icon-shadow" is applied to all buttons with images,
which creates a bold effect on symbolic icons.
This patch zeroes this effect out and makes them highlight
the background in the same way as the toolbox buttons.

For certain min/max values of the LabelSpin widget, in combination with
zero digits, it proves impossible to change the initial value.
The reason for this is that the step size may become less than 1.0.
In which case, stepping doesn't work because the number of digits is
set to zero.

Let's check for this situation and when digits is zero set the step
to 1.0 and make sure that page is at least the same value.

While testing this I also noticed another issue: when initializing
the upper value was set to 0.0 and the lower to 1.0 which leads to
a critical because lower > upper.
We fix this by switching the initial upper and lower values.

There was no user feedback when our twain plug-in couldn't find the
(32-bit) TWAIN driver, making for a poor user experience.

Especially since nowadays the availability of the twain driver is
less likely, let's add an error message for the user, so they will
know what's going on.

We now have a proper icon thanks to Denis Rangelov!

The previous commit worked for all the compiled executables, but for Python
plug-ins (and likely all other GObject-Introspected bindings), we need to
generate a temporary typelib linking to the in-build-directory libgimp*
libraries.

This is similar to what the script `package/macports_build_app.sh` does for
packaging in gimp-macos-build repository.