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# coding: UTF-8
# Copyright 2009, 2010 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
from gettext import gettext as _
import random
import ka_debug
import model_random
import model_locus
import model_allele
class RectangularTileModifier(model_allele.Allele):
"""RectangularTileModifier: Reverse the layer horizontally or vertically.
inv: self.x_tiles > 0
inv: self.y_tiles > 0
"""
def __init__(self, trunk):
"""Constructor for a flip modifier."""
super(RectangularTileModifier, self).__init__(trunk)
self.x_tiles = 1
self.y_tiles = 1
def __eq__(self, other):
"""Equality based on fliping horizontally or vertically."""
equal = isinstance(other, RectangularTileModifier) \
and self.x_tiles == other.x_tiles \
and self.y_tiles == other.y_tiles
return equal
def randomize(self):
"""Randomize the layers components."""
self.x_tiles = random.randint(1, 3)
self.y_tiles = random.randint(1, 3)
def mutate(self):
"""Make small random changes to the layers components."""
if model_random.is_mutating():
self.x_tiles += random.randint(-1, 1)
self.x_tiles = 1 if self.x_tiles < 1 else self.x_tiles
if model_random.is_mutating():
self.y_tiles += random.randint(-1, 1)
self.y_tiles = 1 if self.y_tiles < 1 else self.y_tiles
def swap_places(self):
"""Exchange x- and y-tiles."""
self.x_tiles, self.y_tiles = model_random.swap_parameters(self.x_tiles,
self.y_tiles)
def crossingover(self, other):
"""
pre: isinstance(other, RectangularTileModifier)
pre: isinstance(self, RectangularTileModifier)
# check for distinct references, needs to copy content, not references
post: __return__ is not self
post: __return__ is not other
post: model_locus.unique_check(__return__, self, other) == ''
"""
new_one = RectangularTileModifier(self.get_trunk())
cross_sequence = model_random.crossing_sequence(2)
new_one.x_tiles = self.x_tiles if cross_sequence[0] else other.x_tiles
new_one.y_tiles = self.y_tiles if cross_sequence[1] else other.y_tiles
return new_one
def render_single_layer(self, task, single_layer, single_treenode, ctx, width, height):
"""
pre: single_layer is not None
pre: ctx is not None
pre: width > 0
pre: height > 0
pre: width == height
"""
# repeat painting layer
delta_x, delta_y = 1.0 / self.x_tiles, 1.0 / self.y_tiles
for tix in range(self.x_tiles):
for tiy in range(self.y_tiles):
if task.quit:
return
ctx.save()
# ka_debug.matrix_s(ctx.get_matrix())
ctx.translate((tix-0.5*self.x_tiles)*delta_x+0.5*delta_x, \
(tiy-0.5*self.y_tiles)*delta_y+0.5*delta_y)
# ka_debug.matrix(ctx.get_matrix())
ctx.scale(delta_x, delta_y)
# ka_debug.matrix(ctx.get_matrix())
ctx.save()
ka_debug.matrix_s(ctx.get_matrix())
ctx.save()
# ka_debug.matrix_s(ctx.get_matrix())
single_layer.render(task, ctx, width, height)
# ka_debug.matrix_r(ctx.get_matrix())
ctx.restore()
single_treenode.render(task, ctx, width, height)
# ka_debug.matrix_r(ctx.get_matrix())
ctx.restore()
# ka_debug.matrix_r(ctx.get_matrix())
ctx.restore()
def explain(self, task, formater, single_layer, single_treenode):
formater.text_item(_('Rectangular tile modifier: %d*x, %d*y')
% (self.x_tiles, self.y_tiles))
single_layer.explain(formater)
single_treenode.explain(task, formater)
def copy(self):
"""A copy constructor.
post: isinstance(__return__, RectangularTileModifier)
# check for distinct references, needs to copy content, not references
post: __return__ is not self
"""
new_one = RectangularTileModifier(self.get_trunk())
new_one.x_tiles = self.x_tiles
new_one.y_tiles = self.y_tiles
return new_one
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