# Copyright (c) 2016 Martin Sicho
#
# 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 <http://www.gnu.org/licenses/>.
import molpher
import molpher.core.ExplorationTree
from abc import ABCMeta, abstractmethod
from molpher.core._utils import shorten_repr
[docs]class TreeOperation(molpher.swig_wrappers.core.TreeOperation):
    """
    Abstract base class derived from the `molpher.swig_wrappers.core.TreeOperation`
    proxy class.
    """
    __metaclass__ = ABCMeta
    def __repr__(self):
        return shorten_repr(TreeOperation, self)
    @property
    def tree(self):
        """
        The :class:`~molpher.core.ExplorationTree` instance this operation
        currently operates on. It can also be written into to change the
        current tree instance.
        :return: current :class:`~molpher.core.ExplorationTree` instance
        :rtype: :class:`~molpher.core.ExplorationTree`
        """
        return self.getTree()
    @tree.setter
    def tree(self, tree):
        self.setTree(tree)
[docs]    def getTree(self):
        """
        Getter which returns the :class:`~molpher.core.ExplorationTree` instance this operation
        currently operates on.
        :return: current :class:`~molpher.core.ExplorationTree` instance
        :rtype: :class:`~molpher.core.ExplorationTree`
        """
        tree = super(TreeOperation, self).getTree()
        if tree:
            tree.__class__ = molpher.core.ExplorationTree # 'cast' the wrapped class to the 'pretty' Python proxy class
        return tree 
    @abstractmethod
    def __call__(self):
        pass