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#!/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
gi.require_version('Gegl', '0.4')
from gi.repository import Gegl
from gi.repository import GObject
from gi.repository import GLib
from gi.repository import Gio
import os
import sys
def N_(message): return message
def _(message): return GLib.dgettext(None, message)
class Goat (Gimp.PlugIn):
## GimpPlugIn virtual methods ##
def do_query_procedures(self):
return [ "plug-in-goat-exercise-python" ]
def do_create_procedure(self, name):
procedure = Gimp.ImageProcedure.new(self, name,
Gimp.PDBProcType.PLUGIN,
self.run, None)
procedure.set_image_types("*")
procedure.set_sensitivity_mask (Gimp.ProcedureSensitivityMask.DRAWABLE)
procedure.set_menu_label(_("Plug-In Example in _Python 3"))
procedure.set_icon_name(GimpUi.ICON_GEGL)
procedure.add_menu_path('<Image>/Filters/Development/Plug-In Examples/')
procedure.set_documentation(_("Plug-in example in Python 3"),
_("Plug-in example in Python 3"),
name)
procedure.set_attribution("Jehan", "Jehan", "2019")
return procedure
def run(self, procedure, run_mode, image, drawables, config, run_data):
if len(drawables) != 1:
msg = _("Procedure '{}' only works with one drawable.").format(procedure.get_name())
error = GLib.Error.new_literal(Gimp.PlugIn.error_quark(), msg, 0)
return procedure.new_return_values(Gimp.PDBStatusType.CALLING_ERROR, error)
else:
drawable = drawables[0]
if run_mode == Gimp.RunMode.INTERACTIVE:
gi.require_version('Gtk', '3.0')
from gi.repository import Gtk
gi.require_version('Gdk', '3.0')
from gi.repository import Gdk
GimpUi.init("goat-exercise-py3.py")
dialog = GimpUi.Dialog(use_header_bar=True,
title=_("Plug-In Example in Python 3"),
role="goat-exercise-Python3")
dialog.add_button(_("_Cancel"), Gtk.ResponseType.CANCEL)
dialog.add_button(_("_Source"), Gtk.ResponseType.APPLY)
dialog.add_button(_("_OK"), Gtk.ResponseType.OK)
geometry = Gdk.Geometry()
geometry.min_aspect = 0.5
geometry.max_aspect = 1.0
dialog.set_geometry_hints(None, geometry, Gdk.WindowHints.ASPECT)
box = Gtk.Box(orientation=Gtk.Orientation.VERTICAL, spacing=2)
dialog.get_content_area().add(box)
box.show()
# XXX We use printf-style string for sharing the localized
# string. You may just use recommended Python format() or
# any style you like in your plug-ins.
head_text=_("This plug-in is an exercise in '%s' to "
"demo plug-in creation.\nCheck out the last "
"version of the source code online by clicking "
"the \"Source\" button.") % ("Python 3")
label = Gtk.Label(label=head_text)
box.pack_start(label, False, False, 1)
label.show()
contents = None
# Get the file contents Python-style instead of using
# GLib.file_get_contents() which returns bytes result, and
# when converting to string, get newlines as text contents.
# Rather than wasting time to figure this out, use Python
# core API!
with open(os.path.realpath(__file__), 'r') as f:
contents = f.read()
if contents is not None:
scrolled = Gtk.ScrolledWindow()
scrolled.set_vexpand (True)
box.pack_start(scrolled, True, True, 1)
scrolled.show()
view = Gtk.TextView()
view.set_wrap_mode(Gtk.WrapMode.WORD)
view.set_editable(False)
buffer = view.get_buffer()
buffer.set_text(contents, -1)
scrolled.add(view)
view.show()
while (True):
response = dialog.run()
if response == Gtk.ResponseType.OK:
dialog.destroy()
break
elif response == Gtk.ResponseType.APPLY:
url = "https://gitlab.gnome.org/GNOME/gimp/-/blob/master/extensions/goat-exercises/goat-exercise-py3.py"
Gio.app_info_launch_default_for_uri(url, None)
continue
else:
dialog.destroy()
return procedure.new_return_values(Gimp.PDBStatusType.CANCEL,
GLib.Error())
intersect, x, y, width, height = drawable.mask_intersect()
if intersect:
Gegl.init(None)
buffer = drawable.get_buffer()
shadow_buffer = drawable.get_shadow_buffer()
graph = Gegl.Node()
input = graph.create_child("gegl:buffer-source")
input.set_property("buffer", buffer)
invert = graph.create_child("gegl:invert")
output = graph.create_child("gegl:write-buffer")
output.set_property("buffer", shadow_buffer)
input.link(invert)
invert.link(output)
output.process()
# This is extremely important in bindings, since we don't
# unref buffers. If we don't explicitly flush a buffer, we
# may left hanging forever. This step is usually done
# during an unref().
shadow_buffer.flush()
drawable.merge_shadow(True)
drawable.update(x, y, width, height)
Gimp.displays_flush()
return procedure.new_return_values(Gimp.PDBStatusType.SUCCESS, GLib.Error())
Gimp.main(Goat.__gtype__, sys.argv)
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