def _new(self, track_list):
"""
:param track_list: List of tracks to initialize the set with
:type track_list: collections.Iterable[Track] | None
"""
if track_list is None:
track_list = []
# noinspection PyCallingNonCallable
c_track_array = (Track.c_ptr_type() *
len(track_list))(*(t.c_pointer for t in track_list))
return self._call_cfunc(
'vital_object_trackset_new',
[ctypes.c_size_t,
ctypes.POINTER(Track.c_ptr_type())],
[len(track_list), c_track_array], self.C_TYPE_PTR)
def tracks(self):
"""
Get the list of all tracks contained in this set (new instances).
:return: list of new Track instances of tracks contained in this set
:rtype: list[Track]
"""
c_ptr_arr = self._call_cfunc('vital_trackset_tracks',
[self.C_TYPE_PTR], [self],
ctypes.POINTER(Track.c_ptr_type()))
tracks = []
for cptr in c_ptr_arr[:self.size()]:
cptr = Track.c_ptr_type()(cptr.contents)
tracks.append(Track(from_cptr=cptr))
free_void_ptr(c_ptr_arr)
return tracks
def get_track(self, tid):
""" Get the track in this set with the specified ID
:raises IndexError: If no tracks in this set match the given ID.
:param tid: The ID of the track to get
:type tid: int
:return: New Track instance referring to the track with the given ID in
this set, or None if no tracks in this set have the given ID.
:rtype: Track
"""
track_cptr = self._call_cfunc('vital_trackset_get_track',
[self.C_TYPE_PTR, ctypes.c_int64],
[self, tid], Track.c_ptr_type())
if not track_cptr:
raise IndexError(tid)
return Track(from_cptr=track_cptr)
