#
#  Copyright (c) 2008 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 layouts and layout components.

$Id$
"""

from zope.interface import implements

from cybertools.composer.base import Component, Element, Compound
from cybertools.composer.base import Template
from cybertools.composer.layout.interfaces import ILayout, ILayoutInstance
from cybertools.composer.layout.interfaces import IRegion
from cybertools.util.jeep import Jeep


class Layout(Template):

    implements(ILayout)

    name = u''
    manager = None
    renderer = None


class LayoutInstance(object):

    implements(ILayoutInstance)

    def __init__(self, template, context=None):
        self.template = template
        self.context = context

    @property
    def renderer(self):
        return self.template.renderer


class Region(object):

    implements(IRegion)

    allowedLayoutCategories = None

    def __init__(self, name):
        self.name = name

    @property
    def layouts(self):
        return []