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# coding: UTF8
# Copyright 2009 Thomas Jourdan
#
# 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, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
import model_allele
class StraightMerger(model_allele.Allele):
"""StraightMerger
"""
def __init__(self, trunk):
"""Constructor for a simple merger."""
super(StraightMerger, self).__init__(trunk)
def __eq__(self, other):
"""Equality based on same instance."""
equal = isinstance(other, StraightMerger)
return equal
def randomize(self):
"""No member variables. Nothing to do."""
pass
def mutate(self):
"""No member variables. Nothing to do."""
pass
def shuffle(self):
"""No member variables. Nothing to do."""
pass
def crossingover(self, other):
"""
pre: isinstance(other, StraightMerger)
pre: isinstance(self, StraightMerger)
# check for distinct references, needs to copy content, not references
post: __return__ is not self
post: __return__ is not other
"""
new_one = StraightMerger(self.get_trunk())
return new_one
def draw_single_layer(self, single_layer, mask_layer, ctx, width, height):
"""
pre: single_layer is not None
pre: ctx is not None
pre: width > 0
pre: height > 0
pre: width == height
"""
# paint one layer
ctx.save()
single_layer.draw(ctx, width, height)
ctx.restore()
def explain(self):
return 'Straight merger', \
None, \
None
def copy(self):
"""A copy constructor.
post: isinstance(__return__, StraightMerger)
# check for distinct references, needs to copy content, not references
post: __return__ is not self
"""
new_one = StraightMerger(self.get_trunk())
return new_one
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