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Diffstat (limited to 'grc/core/blocks/dummy.py')
| -rw-r--r-- | grc/core/blocks/dummy.py | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/grc/core/blocks/dummy.py b/grc/core/blocks/dummy.py new file mode 100644 index 0000000000..6a5ec2fa72 --- /dev/null +++ b/grc/core/blocks/dummy.py @@ -0,0 +1,54 @@ +# Copyright 2016 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 __future__ import absolute_import + +from . import Block, register_build_in + + +@register_build_in +class DummyBlock(Block): + + is_dummy_block = True + + label = 'Missing Block' + key = '_dummy' + + def __init__(self, parent, missing_block_id, parameters, **_): + self.key = missing_block_id + super(DummyBlock, self).__init__(parent=parent) + + param_factory = self.parent_platform.make_param + for param_id in parameters: + self.params.setdefault(param_id, param_factory(parent=self, id=param_id, dtype='string')) + + def is_valid(self): + return False + + @property + def enabled(self): + return False + + def add_missing_port(self, port_id, direction): + port = self.parent_platform.make_port( + parent=self, direction=direction, id=port_id, name='?', dtype='', + ) + if port.is_source: + self.sources.append(port) + else: + self.sinks.append(port) + return port |