1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
|
# 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 rsvg
import ka_debug
import model_random
import model_locus
import model_allele
import model_constraintpool
import ka_importer
STAMPREPEATER_CONSTRAINT = 'stamprepaeterconstraint'
THEME_CONSTRAINT = 'themeconstraint'
class SvgStamp(model_allele.Allele):
"""SvgStamp:.
inv: self.max_states >= 0
inv: len(ka_importer.get_svg_image_list(self.theme)) == len(self.mapping)
inv: forall(self.mapping, lambda x: x >= 0 and x < len(ka_importer.get_svg_image_list(self.theme)))
"""
cdef = [{'bind' : STAMPREPEATER_CONSTRAINT,
'name' : 'Number of stamps used per location',
'domain': model_constraintpool.INT_RANGE,
'min' : 0, 'max': 3},
{'bind' : THEME_CONSTRAINT,
'name' : 'Permitted themes for stamps',
'domain': model_constraintpool.STRING_M_OF_N,
'enum' : ka_importer.get_theme_list()
},
]
def __init__(self, trunk, maxstates):
"""Constructor for a flip merger.
pre: maxstates >= 0
"""
super(SvgStamp, self).__init__(trunk)
self.max_states = maxstates
self.dw, self.dh = 1.0, 1.0
self.theme = ''
svg_image_list = ka_importer.get_svg_image_list(self.theme)
self.mapping = [ix for ix in range(len(svg_image_list))]
self.repeating = [1 for ix in range(self.max_states)]
def __eq__(self, other):
"""Equality based on radius."""
equal = isinstance(other, SvgStamp) \
and self.max_states == other.max_states \
and len(self.mapping) == len(other.mapping) \
and len(self.repeating) == len(other.repeating) \
and self.theme == other.theme
if equal:
for cix, value in enumerate(self.mapping):
equal = equal and value == other.mapping[cix]
if equal:
for cix, value in enumerate(self.repeating):
equal = equal and value == other.repeating[cix]
return equal
def randomize(self):
"""Randomize the layers components."""
cpool = model_constraintpool.ConstraintPool.get_pool()
self._randomize_mapping(cpool)
number_of_repeaters_constraint = cpool.get(self, STAMPREPEATER_CONSTRAINT)
min_r, max_r = number_of_repeaters_constraint[0], number_of_repeaters_constraint[1]
self.repeating = [model_random.limit_range(ix, min_r, max_r)
for ix in range(self.max_states)]
random.shuffle(self.repeating)
def _randomize_mapping(self, cpool):
"""
pre: cpool is not None
"""
full_theme_list = ka_importer.get_theme_list()
theme_constraint = cpool.get(self, THEME_CONSTRAINT)
theme_list = [th for th in full_theme_list if th in theme_constraint]
self.theme = '' if len(theme_list) == 0 else random.choice(theme_list)
svg_image_list = ka_importer.get_svg_image_list(self.theme)
self.mapping = [ix for ix in range(len(svg_image_list))]
random.shuffle(self.mapping)
def mutate(self):
"""Make small random changes to the layers components."""
cpool = model_constraintpool.ConstraintPool.get_pool()
if model_random.is_mutating():
self._randomize_mapping(cpool)
if model_random.is_mutating():
number_of_repeaters_constraint = cpool.get(self, STAMPREPEATER_CONSTRAINT)
for rx, repeat in enumerate(self.repeating):
self.repeating[rx] = model_random.jitter_discret_constrained(
repeat, number_of_repeaters_constraint)
def swap_places(self):
"""Shuffle mapping table."""
if model_random.is_mutating():
model_random.swap_places(self.mapping)
svg_image_list = ka_importer.get_svg_image_list(self.theme)
for dummy in range(len(svg_image_list) / 20):
model_random.swap_places(self.mapping)
if model_random.is_mutating():
model_random.swap_places(self.repeating)
def crossingover(self, other):
"""
pre: isinstance(other, SvgStamp)
pre: isinstance(self, SvgStamp)
# 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 = SvgStamp(self.get_trunk(), self.max_states)
self.dw, self.dh = 1.0, 1.0
cross_sequence = model_random.crossing_sequence(2)
if self.theme == other.theme:
new_one.theme = self.theme[:]
new_one.mapping = model_random.crossingover_nativeelement_list(
self.mapping,
other.mapping)
else:
if cross_sequence[0]:
new_one.theme = other.theme[:]
new_one.mapping = other.mapping[:]
else:
new_one.theme = self.theme[:]
new_one.mapping = self.mapping[:]
if self.max_states == other.max_states:
new_one.max_states = self.max_states
new_one.repeating = model_random.crossingover_nativeelement_list(
self.repeating,
other.repeating)
return new_one
def set_stamp_extent(self, dw, dh):
"""Set extent of stamp."""
self.dw, self.dh = dw, dh
def render(self, ctx, point, state):
"""
pre: ctx is not None
pre: len(point) == 2
"""
svg_image_list = ka_importer.get_svg_image_list(self.theme)
if len(svg_image_list) > 0:
repeats = self.repeating[state % len(self.repeating)]
for rx in range(repeats):
svg_pathname = svg_image_list[self.mapping[
(state + rx) % len(self.mapping)]
% len(svg_image_list)]
ctx.save()
# ka_debug.matrix_s(ctx.get_matrix())
svg = rsvg.Handle(file=svg_pathname)
ctx.translate(-self.dw/2.0+point[0], -self.dh/2.0+point[1])
# ka_debug.matrix(ctx.get_matrix())
ctx.scale(self.dw/100.0, self.dh/100.0)
# ka_debug.matrix(ctx.get_matrix())
svg.render_cairo(ctx)
svg.close()
# ka_debug.matrix_r(ctx.get_matrix())
ctx.restore()
def explain(self):
"""
post: len(__return__) == 3
"""
return _('Theme is %s. Patterns are in SVG format: ') % self.theme, \
None, \
None
def copy(self):
"""A copy constructor.
post: isinstance(__return__, SvgStamp)
# check for distinct references, needs to copy content, not references
post: len(__return__.mapping) == len(self.mapping)
post: __return__ is not self
"""
new_one = SvgStamp(self.get_trunk(), self.max_states)
new_one.dw, new_one.dh = self.dw, self.dh
new_one.max_states = self.max_states
new_one.theme = self.theme[:]
new_one.mapping = [self.mapping[ix] for ix in range(len(self.mapping))]
new_one.repeating = [self.repeating[ix] for ix in range(len(self.repeating))]
return new_one
|
