def OnAlign(self, evt):
reference = wx.GetSingleChoice(
"Select a reference track",
self.m_alignBtn.GetLabel(),
TrackList.track_names(),
parent=self
)
if reference:
tracks = self.GetSelectedTrackNames() or TrackList.track_names()
for path in tracks:
TrackList.align_track(reference, path)
def _moveItems(self, delta):
# In order to update the list in-place, we need to:
# - iterate forwards if delta is negative
# - iterate backwards if delta is positive
order = list(enumerate(TrackList.track_names()))
if delta > 0:
order = reversed(order)
with TrackList.transaction():
for i, f in order:
if f in self.dragitems:
TrackList.move(i, i + delta)
def _dragDelta(self, evt):
# Base delta
delta = evt.index - self.dragidx
# Constrain delta so that the first item doesn't end up negative, and the last
# item doesn't end up off the list
tracks = TrackList.track_names()
for i, f in enumerate(tracks):
if f in self.dragitems:
if i + delta < 0:
delta = -i
elif i + delta >= len(tracks):
delta = len(tracks) - i - 1
return delta
def OnNormalize(self, evt):
target = wx.GetNumberFromUser(
"Enter the normalization target",
"Target LUFS",
self.m_normalizeBtn.GetLabel(),
value=-23,
min=-50,
max=-6,
parent=self
)
if target != -1:
tracks = self.GetSelectedTrackNames() or TrackList.track_names()
for path in tracks:
TrackList.normalize_track(path, target)
def OnFadeOut(self, evt):
seconds = dialogs.GetFloatFromUser(
"Enter the fade out duration in seconds",
self.m_fadeOutBtn.GetLabel(),
value=1.5,
min=0,
max=300,
parent=self
)
if seconds is not None:
tracks = self.GetSelectedTrackNames() or TrackList.track_names()
for path in tracks:
if seconds == 0:
TrackList.remove_filter(path, 'fade_out')
else:
TrackList.set_filter(path, 'fade_out', {'duration': seconds})
def DoDrag(self, evt):
delta = self._dragDelta(evt)
self._moveItems(delta)
# reset the selection
for i, f in enumerate(TrackList.track_names()):
self.m_listCtrl.Select(i, f in self.dragitems)
def GetSelectedTrackNames(self):
"""Returns a list of selected track filenames."""
return [name for i, name in enumerate(TrackList.track_names())
if self.m_listCtrl.IsSelected(i)]