#
#  Copyright (c) 2007 Helmut Merz helmutm@cy55.de
#
#  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 2 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, write to the Free Software
#  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#

"""
Basic classes for complex template structures.

$Id$
"""

from zope.interface import implements

from cybertools.composer.interfaces import IComponent, IElement, ICompound
from cybertools.composer.interfaces import ITemplate
from cybertools.util.jeep import Jeep


class Component(object):

    implements(IComponent)


class Element(Component):

    implements(IElement)


class Compound(Component):

    implements(ICompound)

    componentStorage = Jeep

    def __init__(self):
        self.parts = self.componentStorage()


class Template(object):

    implements(ITemplate)

    componentStorage = Jeep
    components = None

    def __init__(self):
        if self.componentStorage is not None:
            self.components = self.componentStorage()