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Code Issues Releases Wiki Activity

Rewrite many iterations over tracks and channels in src/commands

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This commit is contained in:
Paul Licameli
2018-09-18 11:58:44 -04:00
parent 23a85893a1
commit c7ab9f2338
6 changed files with 77 additions and 112 deletions
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8
src/commands/CompareAudioCommand.cpp
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@@ -76,20 +76,20 @@ bool CompareAudioCommand::GetSelection(const CommandContext &context, AudacityPr
// Get the selected tracks and check that there are at least two to
// compare
SelectedTrackListOfKindIterator iter(Track::Wave, proj.GetTracks());
mTrack0 = (WaveTrack*)(iter.First());
auto trackRange = proj.GetTracks()->Selected< const WaveTrack >();
mTrack0 = *trackRange.first;
if (mTrack0 == NULL)
{
context.Error(wxT("No tracks selected! Select two tracks to compare."));
return false;
}
mTrack1 = (WaveTrack*)(iter.Next());
mTrack1 = * ++ trackRange.first;
if (mTrack1 == NULL)
{
context.Error(wxT("Only one track selected! Select two tracks to compare."));
return false;
}
if (iter.Next() != NULL)
if ( * ++ trackRange.first )
{
context.Status(wxT("More than two tracks selected - only the first two will be compared."));
}