2 Copyright 2008, 2009 Free Software Foundation, Inc.
3 This file is part of GNU Radio
5 GNU Radio Companion is free software; you can redistribute it and/or
6 modify it under the terms of the GNU General Public License
7 as published by the Free Software Foundation; either version 2
8 of the License, or (at your option) any later version.
10 GNU Radio Companion is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
20 from .. base.Port import Port as _Port
26 TYPES = ['complex', 'float', 'int', 'short', 'byte']
28 def __init__(self, block, n):
30 Make a new port from nested data.
31 @param block the parent element
32 @param n the nested odict
35 vlen = n.find('vlen') or '1'
36 nports = n.find('nports') or ''
37 optional = n.find('optional') or ''
46 self._optional = bool(optional)
50 try: assert self.get_enabled_connections() or self.get_optional()
51 except AssertionError: self.add_error_message('Port is not connected.')
52 try: assert self.is_source() or len(self.get_enabled_connections()) <= 1
53 except AssertionError: self.add_error_message('Port has too many connections.')
57 Get the vector length.
58 If the evaluation of vlen cannot be cast to an integer, return 1.
59 @return the vector length or 1
61 vlen = self.get_parent().resolve_dependencies(self._vlen)
62 try: return int(self.get_parent().get_parent().evaluate(vlen))
67 Get the number of ports.
68 If already blank, return a blank
69 If the evaluation of nports cannot be cast to an integer, return 1.
70 @return the number of ports or 1
72 nports = self.get_parent().resolve_dependencies(self._nports)
73 #return blank if nports is blank
74 if not nports: return ''
76 nports = int(self.get_parent().get_parent().evaluate(nports))
81 def get_optional(self): return bool(self._optional)
85 Get the color that represents this port's type.
86 Codes differ for ports where the vec length is 1 or greater than 1.
87 @return a hex color code.
90 if self.get_vlen() == 1:
92 'complex': Constants.COMPLEX_COLOR_SPEC,
93 'float': Constants.FLOAT_COLOR_SPEC,
94 'int': Constants.INT_COLOR_SPEC,
95 'short': Constants.SHORT_COLOR_SPEC,
96 'byte': Constants.BYTE_COLOR_SPEC,
98 return {#vlen is non 1
99 'complex': Constants.COMPLEX_VECTOR_COLOR_SPEC,
100 'float': Constants.FLOAT_VECTOR_COLOR_SPEC,
101 'int': Constants.INT_VECTOR_COLOR_SPEC,
102 'short': Constants.SHORT_VECTOR_COLOR_SPEC,
103 'byte': Constants.BYTE_VECTOR_COLOR_SPEC,
105 except: return _Port.get_color(self)
109 def __init__(self, block, n):
112 n['key'] = str(block._source_count)
113 block._source_count = block._source_count + 1
114 Port.__init__(self, block, n)
117 self.get_parent()._source_count = self.get_parent()._source_count - 1
121 def __init__(self, block, n):
124 n['key'] = str(block._sink_count)
125 block._sink_count = block._sink_count + 1
126 Port.__init__(self, block, n)
129 self.get_parent()._sink_count = self.get_parent()._sink_count - 1