def keep_empty_group(self, group):
"""
Returns True if the empty group should not be automatically deleted.
otherwise returns False. The default implementation always returns
False. Subclasses should override this method if it needs to keep the
empty group for some reasons. Note that this method will only get called
when a group has a class constant autdelete_when_empty set to True.
(and as of 2008-03-06, it is proposed that dna_updater calls this method
when needed.
@see: Command.keep_empty_group() which is overridden here.
"""
bool_keep = EditCommand.keep_empty_group(self, group)
if not bool_keep:
#Lets just not delete *ANY* DnaGroup while in DnaDisplayStyle_Command
#Although DnaDisplayStyle command can only be accessed through
#BuildDna_EditCommand, it could happen (due to a bug) that the
#previous command is not BuildDna_Editcommand. So bool_keep
#in that case will return False propmting dna updater to even delete
#the empty DnaGroup (if it becomes empty for some reasons) of the
#BuildDna command. To avoid this ,this method will instruct
# to keep all instances of DnaGroup even when they might be empty.
if isinstance(group, self.assy.DnaGroup):
bool_keep = True
#Commented out code that shows what I was planning to implement
#earlier.
##previousCommand = self.commandSequencer.prevMode # keep_empty_group: .struct
##if previousCommand.commandName == 'BUILD_DNA':
##if group is previousCommand.struct:
##bool_keep = True
return bool_keep
def keep_empty_group(self, group):
"""
Returns True if the empty group should not be automatically deleted.
otherwise returns False. The default implementation always returns
False. Subclasses should override this method if it needs to keep the
empty group for some reasons. Note that this method will only get called
when a group has a class constant autdelete_when_empty set to True.
(and as of 2008-03-06, it is proposed that dna_updater calls this method
when needed.
@see: Command.keep_empty_group() which is overridden here.
"""
bool_keep = EditCommand.keep_empty_group(self, group)
if not bool_keep:
#Don't delete any DnaSegements or DnaGroups at all while
#in DnaDuplex_EditCommand.
#Reason: See BreakStrand_Command.keep_empty_group. In addition to
#this, this command can create multiple DnaSegments Although those
#won't be empty, it doesn't hurt in waiting for this temporary
#command to exit before deleting any empty groups.
if isinstance(group, self.assy.DnaSegment) or \
isinstance(group, self.assy.DnaGroup):
bool_keep = True
return bool_keep
def keep_empty_group(self, group):
"""
Returns True if the empty group should not be automatically deleted.
otherwise returns False. The default implementation always returns
False. Subclasses should override this method if it needs to keep the
empty group for some reasons. Note that this method will only get called
when a group has a class constant autdelete_when_empty set to True.
(and as of 2008-03-06, it is proposed that dna_updater calls this method
when needed.
@see: Command.keep_empty_group() which is overridden here.
@see: BreakStrands_Command.keep_empty_group
@see: Group.autodelete_when_empty.. a class constant used by the
dna_updater (the dna updater then decides whether to call this
method to see which empty groups need to be deleted)
"""
bool_keep = EditCommand.keep_empty_group(self, group)
if not bool_keep:
if self.hasValidStructure():
if group is self.struct:
bool_keep = True
elif group is self.struct.parent_node_of_class(self.assy.DnaGroup):
bool_keep = True
# If this command doesn't have a valid structure, as a fall back,
# lets instruct it to keep ALL the DnaGroup objects even when empty
# Reason? ..see explanation in BreakStrands_Command.keep_empty_group
elif isinstance(group, self.assy.DnaGroup):
bool_keep = True
return bool_keep
def keep_empty_group(self, group):
"""
Returns True if the empty group should not be automatically deleted.
otherwise returns False. The default implementation always returns
False. Subclasses should override this method if it needs to keep the
empty group for some reasons. Note that this method will only get called
when a group has a class constant autdelete_when_empty set to True.
(and as of 2008-03-06, it is proposed that dna_updater calls this method
when needed.
@see: Command.keep_empty_group() which is overridden here.
"""
bool_keep = EditCommand.keep_empty_group(self, group)
if not bool_keep:
#Lets just not delete *ANY* DnaGroup while in DnaDisplayStyle_Command
#Although DnaDisplayStyle command can only be accessed through
#BuildDna_EditCommand, it could happen (due to a bug) that the
#previous command is not BuildDna_Editcommand. So bool_keep
#in that case will return False propmting dna updater to even delete
#the empty DnaGroup (if it becomes empty for some reasons) of the
#BuildDna command. To avoid this ,this method will instruct
# to keep all instances of DnaGroup even when they might be empty.
if isinstance(group, self.assy.DnaGroup):
bool_keep = True
#Commented out code that shows what I was planning to implement
#earlier.
##previousCommand = self.commandSequencer.prevMode
##if previousCommand.commandName == 'BUILD_DNA':
##if group is previousCommand.struct:
##bool_keep = True
return bool_keep
def keep_empty_group(self, group):
"""
Returns True if the empty group should not be automatically deleted.
otherwise returns False. The default implementation always returns
False. Subclasses should override this method if it needs to keep the
empty group for some reasons. Note that this method will only get called
when a group has a class constant autdelete_when_empty set to True.
(and as of 2008-03-06, it is proposed that dna_updater calls this method
when needed.
@see: Command.keep_empty_group() which is overridden here.
@see: BreakStrands_Command.keep_empty_group
@see: Group.autodelete_when_empty.. a class constant used by the
dna_updater (the dna updater then decides whether to call this
method to see which empty groups need to be deleted)
"""
bool_keep = EditCommand.keep_empty_group(self, group)
if not bool_keep:
if self.hasValidStructure():
if group is self.struct:
bool_keep = True
elif group is self.struct.parent_node_of_class(
self.assy.DnaGroup):
bool_keep = True
#If this command doesn't have a valid structure, as a fall back,
#lets instruct it to keep ALL the DnaGroup objects even when empty
#Reason? ..see explanation in BreakStrands_Command.keep_empty_group
elif isinstance(group, self.assy.DnaGroup):
bool_keep = True
return bool_keep
def keep_empty_group(self, group):
"""
Returns True if the empty group should not be automatically deleted.
otherwise returns False. The default implementation always returns
False. Subclasses should override this method if it needs to keep the
empty group for some reasons. Note that this method will only get called
when a group has a class constant autdelete_when_empty set to True.
(and as of 2008-03-06, it is proposed that cnt_updater calls this method
when needed.
@see: Command.keep_empty_group() which is overridden here.
"""
bool_keep = EditCommand.keep_empty_group(self, group)
if not bool_keep:
#Don't delete any CntSegements or NanotubeGroups at all while
#in InsertNanotube_EditCommand.
#Reason: See BreakStrand_Command.keep_empty_group. In addition to
#this, this command can create multiple NanotubeSegments Although those
#won't be empty, it doesn't hurt in waiting for this temporary
#command to exit before deleting any empty groups.
if isinstance(group, self.assy.NanotubeSegment) or \
isinstance(group, self.assy.NanotubeGroup):
bool_keep = True
return bool_keep
def keep_empty_group(self, group):
"""
Returns True if the empty group should not be automatically deleted.
otherwise returns False. The default implementation always returns
False. Subclasses should override this method if it needs to keep the
empty group for some reasons. Note that this method will only get called
when a group has a class constant autdelete_when_empty set to True.
@see: Command.keep_empty_group() which is overridden here.
"""
bool_keep = EditCommand.keep_empty_group(self, group)
return bool_keep
def keep_empty_group(self, group):
"""
Returns True if the empty group should not be automatically deleted.
otherwise returns False. The default implementation always returns
False. Subclasses should override this method if it needs to keep the
empty group for some reasons. Note that this method will only get called
when a group has a class constant autdelete_when_empty set to True.
@see: Command.keep_empty_group() which is overridden here.
"""
bool_keep = EditCommand.keep_empty_group(self, group)
return bool_keep
def keep_empty_group(self, group):
"""
Returns True if the empty group should not be automatically deleted.
otherwise returns False. The default implementation always returns
False. Subclasses should override this method if it needs to keep the
empty group for some reasons. Note that this method will only get called
when a group has a class constant autdelete_when_empty set to True.
(and as of 2008-03-06, it is proposed that dna_updater calls this method
when needed.
@see: Command.keep_empty_group() which is overridden here.
"""
bool_keep = EditCommand.keep_empty_group(self, group)
if not bool_keep:
if group is self.struct:
bool_keep = True
return bool_keep
