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
|
"""
Copyright 2008-2011 Free Software Foundation, Inc.
This file is part of GNU Radio
GNU Radio Companion 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.
GNU Radio Companion 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 Street, Fifth Floor, Boston, MA 02110-1301, USA
"""
from .. base.Block import Block as _Block
from .. gui.Block import Block as _GUIBlock
import extract_docs
import extract_category
class Block(_Block, _GUIBlock):
def is_virtual_sink(self): return self.get_key() == 'virtual_sink'
def is_virtual_source(self): return self.get_key() == 'virtual_source'
##for make source to keep track of indexes
_source_count = 0
##for make sink to keep track of indexes
_sink_count = 0
def __init__(self, flow_graph, n):
"""
Make a new block from nested data.
@param flow graph the parent element
@param n the nested odict
@return block a new block
"""
#grab the data
self._doc = n.find('doc') or ''
self._imports = map(lambda i: i.strip(), n.findall('import'))
self._make = n.find('make')
self._var_make = n.find('var_make')
self._checks = n.findall('check')
self._callbacks = n.findall('callback')
self._throttle = n.find('throttle') or ''
#build the block
_Block.__init__(
self,
flow_graph=flow_graph,
n=n,
)
_GUIBlock.__init__(self)
def throttle(self): return bool(self._throttle)
def validate(self):
"""
Validate this block.
Call the base class validate.
Evaluate the checks: each check must evaluate to True.
"""
_Block.validate(self)
#evaluate the checks
for check in self._checks:
check_res = self.resolve_dependencies(check)
try:
if not self.get_parent().evaluate(check_res):
self.add_error_message('Check "%s" failed.'%check)
except: self.add_error_message('Check "%s" did not evaluate.'%check)
def rewrite(self):
"""
Add and remove ports to adjust for the nports.
"""
_Block.rewrite(self)
def rectify(ports):
#restore integer contiguity after insertion
#rectify the port names with the index
for i, port in enumerate(ports):
port._key = str(i)
port._name = port._n['name']
if len(ports) > 1: port._name += str(i)
def insert_port(get_ports, get_port, key):
prev_port = get_port(str(int(key)-1))
get_ports().insert(
get_ports().index(prev_port)+1,
prev_port.copy(new_key=key),
)
rectify(get_ports())
def remove_port(get_ports, get_port, key):
port = get_port(key)
for connection in port.get_connections():
self.get_parent().remove_element(connection)
get_ports().remove(port)
rectify(get_ports())
#adjust nports
for get_ports, get_port in (
(self.get_sources, self.get_source),
(self.get_sinks, self.get_sink),
):
master_ports = filter(lambda p: p.get_nports(), get_ports())
for i, master_port in enumerate(master_ports):
nports = master_port.get_nports()
index_first = get_ports().index(master_port)
try: index_last = get_ports().index(master_ports[i+1])
except IndexError: index_last = len(get_ports())
num_ports = index_last - index_first
#do nothing if nports is already num ports
if nports == num_ports: continue
#remove excess ports and connections
if nports < num_ports:
for key in reversed(map(str, range(index_first+nports, index_first+num_ports))):
remove_port(get_ports, get_port, key)
continue
#add more ports
if nports > num_ports:
for key in map(str, range(index_first+num_ports, index_first+nports)):
insert_port(get_ports, get_port, key)
continue
def port_controller_modify(self, direction):
"""
Change the port controller.
@param direction +1 or -1
@return true for change
"""
changed = False
#concat the nports string from the private nports settings of all ports
nports_str = ' '.join([port._nports for port in self.get_ports()])
#modify all params whose keys appear in the nports string
for param in self.get_params():
if param.is_enum() or param.get_key() not in nports_str: continue
#try to increment the port controller by direction
try:
value = param.get_evaluated()
value = value + direction
if 0 < value:
param.set_value(value)
changed = True
except: pass
return changed
def get_doc(self):
doc = self._doc.strip('\n').replace('\\\n', '')
#merge custom doc with doxygen docs
return '\n'.join([doc, extract_docs.extract(self.get_key())]).strip('\n')
def get_category(self):
category = extract_category.extract(self.get_key())
#if category: return category
return _Block.get_category(self)
def get_imports(self):
"""
Resolve all import statements.
Split each import statement at newlines.
Combine all import statments into a list.
Filter empty imports.
@return a list of import statements
"""
return filter(lambda i: i, sum(map(lambda i: self.resolve_dependencies(i).split('\n'), self._imports), []))
def get_make(self): return self.resolve_dependencies(self._make)
def get_var_make(self): return self.resolve_dependencies(self._var_make)
def get_callbacks(self):
"""
Get a list of function callbacks for this block.
@return a list of strings
"""
def make_callback(callback):
callback = self.resolve_dependencies(callback)
if 'self.' in callback: return callback
return 'self.%s.%s'%(self.get_id(), callback)
return map(make_callback, self._callbacks)
|
