StaffLinesSpanner

class spannertools.StaffLinesSpanner(lines=5, forbid_restarting=None, overrides=None)

Staff lines spanner.

>>> staff = Staff("c'8 d'8 e'8 f'8")
>>> spanner = spannertools.StaffLinesSpanner(lines=1)
>>> attach(spanner, staff[1:3])
>>> show(staff) 

Stops and restarts staff on first leaf in spanner.

Overrides line-count attribute of LilyPond Staff.StaffSymbol grob on first leaf in spanner.

Stops and restarts staff on last leaf in spanner.

Lineage

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Bases

Attribute summary

components Gets components in spanner.
forbid_restarting Is true if staff lines spanner is forbidden from re-stopping and re-starting the staff on its last leaf.
lines Gets line of staff lines spanner.
name Gets spanner name.
overrides Gets overrides.
__contains__(expr) Is true when spanner contains expr.
__copy__(\*args) Copies spanner.
__eq__(expr) Is true when ID of expr equals ID of Abjad object.
__format__([format_specification]) Formats Abjad object.
__getitem__(expr) Gets item from spanner.
__hash__() Hashes Abjad object.
__len__() Gets number of components in spanner.
__lt__(expr) Is true when spanner is less than expr.
__ne__(expr) Is true when Abjad object does not equal expr.
__repr__() Gets interpreter representation of Abjad object.

Read-only properties

(Spanner).components

Gets components in spanner.

Returns selection.

StaffLinesSpanner.forbid_restarting

Is true if staff lines spanner is forbidden from re-stopping and re-starting the staff on its last leaf. Otherwise false.

>>> staff = Staff("c'8 d'8 e'8 f'8")
>>> spanner = spannertools.StaffLinesSpanner(
...     lines=1,
...     forbid_restarting=True,
...     )
>>> attach(spanner, staff[:])
>>> print(format(staff))
\new Staff {
    \stopStaff
    \once \override Staff.StaffSymbol.line-count = 1
    \startStaff
    c'8
    d'8
    e'8
    f'8
}

This is useful when the final leaf of a score is covered by a staff lines spanner, to prevent unexpected LilyPond typesetting behavior.

Returns true or false.

StaffLinesSpanner.lines

Gets line of staff lines spanner.

>>> staff = Staff("c'8 d'8 e'8 f'8")
>>> spanner = spannertools.StaffLinesSpanner(lines=1)
>>> attach(spanner, staff[1:3])
>>> show(staff) 
>>> spanner.lines
1

Returns nonnegative integer.

(Spanner).name

Gets spanner name.

Returns string.

(Spanner).overrides

Gets overrides.

Returns dict.

Special methods

(Spanner).__contains__(expr)

Is true when spanner contains expr. Otherwise false.

Returns true or false.

(Spanner).__copy__(*args)

Copies spanner.

Does not copy spanner components.

Returns new spanner.

(AbjadObject).__eq__(expr)

Is true when ID of expr equals ID of Abjad object. Otherwise false.

Returns true or false.

(AbjadObject).__format__(format_specification='')

Formats Abjad object.

Set format_specification to ‘’ or ‘storage’. Interprets ‘’ equal to ‘storage’.

Returns string.

(Spanner).__getitem__(expr)

Gets item from spanner.

Returns component.

(AbjadObject).__hash__()

Hashes Abjad object.

Required to be explicitly redefined on Python 3 if __eq__ changes.

Returns integer.

(Spanner).__len__()

Gets number of components in spanner.

Returns nonnegative integer.

(Spanner).__lt__(expr)

Is true when spanner is less than expr. Otherwise false.

Trivial comparison to allow doctests to work.

Returns true or false.

(AbjadObject).__ne__(expr)

Is true when Abjad object does not equal expr. Otherwise false.

Returns true or false.

(AbjadObject).__repr__()

Gets interpreter representation of Abjad object.

Returns string.