diff options
| author | Sebastian Koslowski <koslowski@kit.edu> | 2016-06-09 14:45:24 +0200 |
|---|---|---|
| committer | Sebastian Koslowski <koslowski@kit.edu> | 2016-06-10 14:42:14 +0200 |
| commit | 7ac7cf6246e4d984d36c64df10ba4d2b2f6b2204 (patch) | |
| tree | de6a780c3fe791087f53913883bba6efa6040e51 /grc/core/Element.py | |
| parent | 435e2b16c903b4a9d16d40ffba649698c4ded190 (diff) | |
grc: gtk3: fix paste and domain color settings
Diffstat (limited to 'grc/core/Element.py')
| -rw-r--r-- | grc/core/Element.py | 68 |
1 files changed, 34 insertions, 34 deletions
diff --git a/grc/core/Element.py b/grc/core/Element.py index a046d6beb4..f07bb113e1 100644 --- a/grc/core/Element.py +++ b/grc/core/Element.py @@ -1,36 +1,37 @@ -""" -Copyright 2008, 2009, 2015 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 -""" +# Copyright 2008, 2009, 2015, 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 import weakref +import functools -class lazyproperty(object): +class lazy_property(object): + def __init__(self, func): self.func = func + functools.update_wrapper(self, func) def __get__(self, instance, cls): if instance is None: return self - else: - value = self.func(instance) - setattr(instance, self.func.__name__, value) - return value + value = self.func(instance) + weak_value = weakref.proxy(value) if not weakref.ProxyType else value + setattr(instance, self.func.__name__, weak_value) + return weak_value class Element(object): @@ -108,35 +109,34 @@ class Element(object): def parent(self): return self._parent() - def get_parent_of_type(self, cls): + def get_parent_by_type(self, cls): parent = self.parent if parent is None: return None elif isinstance(parent, cls): return parent else: - return parent.get_parent_of_type(cls) + return parent.get_parent_by_type(cls) - @lazyproperty + @lazy_property def parent_platform(self): from .Platform import Platform - return self.get_parent_of_type(Platform) + return self.get_parent_by_type(Platform) - @lazyproperty + @lazy_property def parent_flowgraph(self): from .FlowGraph import FlowGraph - return self.get_parent_of_type(FlowGraph) + return self.get_parent_by_type(FlowGraph) - @lazyproperty + @lazy_property def parent_block(self): from .Block import Block - return self.get_parent_of_type(Block) + return self.get_parent_by_type(Block) - def reset_parents(self): + def reset_parents_by_type(self): """Reset all lazy properties""" - # todo: use case? for name, obj in vars(Element): - if isinstance(obj, lazyproperty): + if isinstance(obj, lazy_property): delattr(self, name) def get_children(self): |