gimp/plug-ins/python/palette-offset.py
Alx Sa d10a8c357f plug-ins: Allow Python GUI resources to be empty
Resolves #11772
While ba79fd00 fixed the number of
arguments in the resource arguments,
setting them to False prevented the GUI
from opening if the gradient wasn't set.
This patch switches the value to True to
fix the problem.
2024-07-07 19:19:16 +00:00

129 lines
5.3 KiB
Python

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
import gi
gi.require_version('Gimp', '3.0')
from gi.repository import Gimp
gi.require_version('GimpUi', '3.0')
from gi.repository import GimpUi
from gi.repository import GObject
from gi.repository import GLib
from gi.repository import Gio
import sys
def N_(message): return message
def _(message): return GLib.dgettext(None, message)
help_doc = r"""
Offset the colors in the palette.
Offsets and returns the given palette when it is editable,
otherwise copies the given palette and returns it.
"""
class PaletteOffset (Gimp.PlugIn):
## GimpPlugIn virtual methods ##
def do_set_i18n(self, procname):
return True, 'gimp30-python', None
def do_query_procedures(self):
return [ "python-fu-palette-offset" ]
def do_create_procedure(self, name):
procedure = Gimp.Procedure.new(self, name,
Gimp.PDBProcType.PLUGIN,
self.run, None)
if name == 'python-fu-palette-offset':
procedure.set_menu_label(_("_Offset Palette..."))
procedure.set_documentation(_("Offset the colors in a palette"),
help_doc,
"")
procedure.set_attribution("Joao S. O. Bueno Calligaris, Carol Spears",
"(c) Joao S. O. Bueno Calligaris",
"2004, 2006")
procedure.add_enum_argument ("run-mode", _("Run mode"),
_("The run mode"), Gimp.RunMode,
Gimp.RunMode.NONINTERACTIVE,
GObject.ParamFlags.READWRITE)
procedure.add_palette_argument ("palette", _("_Palette"),
_("Palette"), True,
GObject.ParamFlags.READWRITE)
procedure.add_int_argument ("amount", _("O_ffset"), _("Offset"),
1, GLib.MAXINT, 1, GObject.ParamFlags.READWRITE)
procedure.add_palette_return_value ("new-palette", _("The edited palette"),
_("The newly created palette when read-only, otherwise the input palette"),
GObject.ParamFlags.READWRITE)
procedure.add_menu_path ('<Palettes>/Palettes Menu')
else:
procedure = None
return procedure
def run(self, procedure, config, data):
runmode = config.get_property("run-mode")
palette = config.get_property("palette")
amount = config.get_property("amount")
if palette is None:
palette = Gimp.context_get_palette()
config.set_property("palette", palette)
if not palette.is_valid():
error = f'Invalid palette ID: {palette.get_id()}'
return procedure.new_return_values(Gimp.PDBStatusType.CALLING_ERROR,
GLib.Error(error))
if runmode == Gimp.RunMode.INTERACTIVE:
gi.require_version('Gtk', '3.0')
from gi.repository import Gtk
GimpUi.init ("palette-offset.py")
dialog = GimpUi.ProcedureDialog(procedure=procedure, config=config)
dialog.fill(["palette", "amount"])
if not dialog.run():
dialog.destroy()
return procedure.new_return_values(Gimp.PDBStatusType.CANCEL, GLib.Error())
else:
dialog.destroy()
amount = config.get_property("amount")
palette = config.get_property("palette")
#If palette is read only, work on a copy:
editable = palette.is_editable()
if not editable:
palette = palette.duplicate()
num_colors = palette.get_color_count()
tmp_entry_array = []
for i in range (num_colors):
tmp_entry_array.append ((palette.entry_get_name(i)[1],
palette.entry_get_color(i)))
for i in range (num_colors):
target_index = i + amount
if target_index >= num_colors:
target_index -= num_colors
elif target_index < 0:
target_index += num_colors
palette.entry_set_name(target_index, tmp_entry_array[i][0])
palette.entry_set_color(target_index, tmp_entry_array[i][1])
retval = procedure.new_return_values(Gimp.PDBStatusType.SUCCESS, GLib.Error())
value = GObject.Value(Gimp.Palette, palette)
retval.remove(1)
retval.insert(1, value)
return retval
Gimp.main(PaletteOffset.__gtype__, sys.argv)