def region(self, block, depth=0):
"""Return as Region (start, end) the region of the specified block.
start is the block the region starts, end the block the region ends.
When collapsing the block, don't hide the last block if it starts a new
fold region.
The depth argument specifies how deep a region may be nested.
The default value 0 searches the first containing region, 1 tries to
find one more above that, etc. Use -1 to get the top-most region.
"""
start = None
start_depth = 0
count = 0
for b in cursortools.backwards(block):
l = self.fold_level(b)
if l.start:
count += l.start
if count > start_depth:
start = b
start_depth = count
if count > depth > -1:
break
count += l.stop
if start:
count = start_depth
end = None
for end in cursortools.forwards(block.next()):
l = self.fold_level(end)
if count <= -l.stop:
return Region(start, end)
count += sum(l)
if end:
return Region(start, end)
def region(self, block, depth=0):
"""Return as Region (start, end) the region of the specified block.
start is the block the region starts, end the block the region ends.
When collapsing the block, don't hide the last block if it starts a new
fold region.
The depth argument specifies how deep a region may be nested.
The default value 0 searches the first containing region, 1 tries to
find one more above that, etc. Use -1 to get the top-most region.
"""
start = None
start_depth = 0
count = 0
for b in cursortools.backwards(block):
l = self.fold_level(b)
if l.start:
count += l.start
if count > start_depth:
start = b
start_depth = count
if count > depth > -1:
break
count += l.stop
if start:
count = start_depth
end = None
for end in cursortools.forwards(block.next()):
l = self.fold_level(end)
if count <= -l.stop:
return Region(start, end)
count += sum(l)
if end:
return Region(start, end)
def depth(self, block):
"""Return the number of active regions at the start of this block.
The default implementation simply counts all the fold_events from
the beginning of the document.
"""
count = 0
for block in cursortools.backwards(block.previous()):
count += sum(self.fold_events(block))
return count
