diff options
| author | jblum <jblum@221aa14e-8319-0410-a670-987f0aec2ac5> | 2008-09-07 21:38:12 +0000 |
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| committer | jblum <jblum@221aa14e-8319-0410-a670-987f0aec2ac5> | 2008-09-07 21:38:12 +0000 |
| commit | c86f6c23c6883f73d953d64c28ab42cedb77e4d7 (patch) | |
| tree | 0193b2a649eb0f7f1065912862de340a02848e16 /grc/src/platforms/python/Port.py | |
| parent | ddec4fc07744a6519086b1b111f29d551b7f19c6 (diff) | |
Merged r9481:9518 on jblum/grc_reorganize into trunk. Reorganized grc source under gnuradio.grc module. Trunk passes make distcheck.
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@9525 221aa14e-8319-0410-a670-987f0aec2ac5
Diffstat (limited to 'grc/src/platforms/python/Port.py')
| -rw-r--r-- | grc/src/platforms/python/Port.py | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/grc/src/platforms/python/Port.py b/grc/src/platforms/python/Port.py new file mode 100644 index 0000000000..93fa087eb4 --- /dev/null +++ b/grc/src/platforms/python/Port.py @@ -0,0 +1,131 @@ +""" +Copyright 2008 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.Port import Port as _Port +from ... import utils + +class Port(_Port): + + ##possible port types + TYPES = ['complex', 'float', 'int', 'short', 'byte'] + + def __init__(self, block, n): + """ + Make a new port from nested data. + @param block the parent element + @param n the nested odict + @return a new port + """ + vlen = utils.exists_or_else(n, 'vlen', '1') + nports = utils.exists_or_else(n, 'nports', '') + optional = utils.exists_or_else(n, 'optional', '') + #build the port + _Port.__init__( + self, + block=block, + n=n, + ) + self._nports = nports + self._vlen = vlen + self._optional = bool(optional) + + def get_vlen(self): + """ + Get the vector length. + If the evaluation of vlen cannot be cast to an integer, return 1. + @return the vector length or 1 + """ + vlen = self.get_parent().resolve_dependencies(self._vlen) + try: return int(self.get_parent().get_parent().evaluate(vlen)) + except: return 1 + + def get_nports(self): + """ + Get the number of ports. + If already blank, return a blank + If the evaluation of nports cannot be cast to an integer, return 1. + @return the number of ports or 1 + """ + nports = self.get_parent().resolve_dependencies(self._nports) + #return blank if nports is blank + if not nports: return '' + try: + nports = int(self.get_parent().get_parent().evaluate(nports)) + assert 0 < nports + return nports + except: return 1 + + def get_optional(self): return bool(self._optional) + + def get_color(self): + """ + Get the color that represents this port's type. + Codes differ for ports where the vec length is 1 or greater than 1. + @return a hex color code. + """ + try: + if self.get_vlen() == 1: + return {#vlen is 1 + 'complex': '#3399FF', + 'float': '#FF8C69', + 'int': '#00FF99', + 'short': '#FFFF66', + 'byte': '#FF66FF', + }[self.get_type()] + return {#vlen is non 1 + 'complex': '#3399AA', + 'float': '#CC8C69', + 'int': '#00CC99', + 'short': '#CCCC33', + 'byte': '#CC66CC', + }[self.get_type()] + except: return _Port.get_color(self) + + def is_empty(self): + """ + Is this port empty? + An empty port has no connections. + Not empty of optional is set. + @return true if empty + """ + return not self.get_optional() and not self.get_connections() + +class Source(Port): + + def __init__(self, block, n): + self._n = n #save n + #key is port index + n['key'] = str(block._source_count) + block._source_count = block._source_count + 1 + Port.__init__(self, block, n) + + def __del__(self): + self.get_parent()._source_count = self.get_parent()._source_count - 1 + +class Sink(Port): + + def __init__(self, block, n): + self._n = n #save n + #key is port index + n['key'] = str(block._sink_count) + block._sink_count = block._sink_count + 1 + Port.__init__(self, block, n) + + def __del__(self): + self.get_parent()._sink_count = self.get_parent()._sink_count - 1 |