mirror of
https://github.com/DYefremov/DemonEditor.git
synced 2025-12-30 20:39:42 +01:00
58 lines
1.9 KiB
Python
58 lines
1.9 KiB
Python
# -*- coding: utf-8 -*-
|
|
#
|
|
# The MIT License (MIT)
|
|
#
|
|
# Copyright (c) 2023 Dmitriy Yefremov
|
|
#
|
|
# Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
# of this software and associated documentation files (the "Software"), to deal
|
|
# in the Software without restriction, including without limitation the rights
|
|
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
# copies of the Software, and to permit persons to whom the Software is
|
|
# furnished to do so, subject to the following conditions:
|
|
#
|
|
# The above copyright notice and this permission notice shall be included in
|
|
# all copies or substantial portions of the Software.
|
|
#
|
|
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
# THE SOFTWARE.
|
|
#
|
|
# Author: Dmitriy Yefremov
|
|
#
|
|
|
|
|
|
class Singleton(type):
|
|
_INSTANCE = None
|
|
|
|
def __call__(cls, *args, **kwargs):
|
|
if not cls._INSTANCE:
|
|
cls._INSTANCE = type.__call__(cls, *args, **kwargs)
|
|
return cls._INSTANCE
|
|
|
|
|
|
class BaseExtension(metaclass=Singleton):
|
|
""" Base extension (plugin) class. """
|
|
# The label that will be displayed in the "Tools" menu.
|
|
LABEL = "Base extension"
|
|
|
|
def __init__(self, app):
|
|
# Current application instance.
|
|
# It can be used all public methods, properties or signals.
|
|
self.app = app
|
|
|
|
def exec(self):
|
|
""" Triggers an action for the given extension.
|
|
|
|
E.g. shows a dialog or runs an external script.
|
|
"""
|
|
self.app.show_info_message(f"Hello from {self.__class__.__name__} class!")
|
|
|
|
|
|
if __name__ == "__main__":
|
|
pass
|