def __init__(self, strand: StrandT,
new_idxs: SegmentT,
update_segments: bool = True):
super(ResizeCommand, self).__init__("resize strand")
self.strand = strand
self.old_indices = o_i = strand.idxs()
self.new_idxs = new_idxs
# an increase in length leads to positive delta
self.delta = (new_idxs[1] - new_idxs[0]) - (o_i[1] - o_i[0])
# now handle insertion deltas
oldInsertions = strand.insertionsOnStrand(*o_i)
newInsertions = strand.insertionsOnStrand(*new_idxs)
o_l = 0
for i in oldInsertions:
o_l += i.length()
n_l = 0
for i in newInsertions:
n_l += i.length()
self.delta += (n_l - o_l)
self.update_segments = update_segments
def __init__(self,
strand: StrandT,
new_idxs: SegmentT,
update_segments: bool = True):
super(ResizeCommand, self).__init__("resize strand")
self.strand = strand
self.old_indices = o_i = strand.idxs()
self.new_idxs = new_idxs
# an increase in length leads to positive delta
self.delta = (new_idxs[1] - new_idxs[0]) - (o_i[1] - o_i[0])
# now handle insertion deltas
oldInsertions = strand.insertionsOnStrand(*o_i)
newInsertions = strand.insertionsOnStrand(*new_idxs)
o_l = 0
for i in oldInsertions:
o_l += i.length()
n_l = 0
for i in newInsertions:
n_l += i.length()
self.delta += (n_l - o_l)
self.update_segments = update_segments
def refreshInsertionItems(self, strand: StrandT):
i_items = self.insertionItems()
i_model = strand.insertionsOnStrand()
was_in_use = set(i_items)
in_use = set()
# add in the ones supposed to be there
for insertion in i_model:
idx = insertion.idx()
in_use.add(idx)
if idx in i_items:
pass
else:
i_items[insertion.idx()] = \
InsertionItem(self._virtual_helix_item, strand, insertion)
# end for
# remove all in items
not_in_use = was_in_use - in_use
for index in not_in_use:
i_items[index].destroyItem()
del i_items[index]
def refreshInsertionItems(self, strand: StrandT):
i_items = self.insertionItems()
i_model = strand.insertionsOnStrand()
was_in_use = set(i_items)
in_use = set()
# add in the ones supposed to be there
for insertion in i_model:
idx = insertion.idx()
in_use.add(idx)
if idx in i_items:
pass
else:
i_items[insertion.idx()] = \
InsertionItem(self._virtual_helix_item, strand, insertion)
# end for
# remove all in items
not_in_use = was_in_use - in_use
for index in not_in_use:
i_items[index].destroyItem()
del i_items[index]