# -*- coding: utf-8 -*-
"base 'interface' types for option types"
# Copyright (C) 2012 Team tiramisu (see README for all contributors)
#
# 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
#
# The original `Config` design model is unproudly borrowed from 
# the rough gus of pypy: pypy: http://codespeak.net/svn/pypy/dist/pypy/config/
# the whole pypy projet is under MIT licence
# ____________________________________________________________
# Option and OptionDescription modes
modes = ['normal', 'expert']

class HiddenBaseType(object):
    hidden = False
    def hide(self):
        self.hidden = True
    def show(self):
        self.hidden = False
    def _is_hidden(self):
        # dangerous method: how an Option can determine its status by itself ? 
        return self.hidden

class DisabledBaseType(object):
    disabled = False   
    def disable(self):
        self.disabled = True
    def enable(self):
        self.disabled = False
    def _is_disabled(self):
        return self.disabled

class ModeBaseType(object):
    mode = 'normal'
    def get_mode(self):
        return self.mode
    def set_mode(self, mode):
        if mode not in modes:
            raise TypeError("Unknown mode: {0}".format(mode))
        self.mode = mode