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Code Issues Releases Wiki Activity

More factoring of TimeShiftHandle::Drag

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This commit is contained in:
Paul Licameli 2018-09-26 19:14:14 -04:00
parent aa3c3a8d5a
commit fc5f7331d1
1 changed files with 33 additions and 24 deletions
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57
src/tracks/ui/TimeShiftHandle.cpp
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@ -493,6 +493,37 @@ namespace {
}
}
bool FindCorrespondence(
TrackList &trackList, Track &track, Track &capturedTrack,
ClipMoveState &state)
{
const int diff =
TrackPosition(trackList, &track) -
TrackPosition(trackList, &capturedTrack);
for ( auto &trackClip : state.capturedClipArray ) {
if (trackClip.clip) {
// Move all clips up or down by an equal count of audio tracks.
Track *const pSrcTrack = trackClip.track;
auto pDstTrack = NthAudioTrack(trackList,
diff + TrackPosition(trackList, pSrcTrack));
// Can only move mono to mono, or left to left, or right to right
// And that must be so for each captured clip
bool stereo = (pSrcTrack->GetLink() != 0);
if (pDstTrack && stereo && !pSrcTrack->GetLinked())
// Assume linked track is wave or null
pDstTrack = static_cast<WaveTrack*>(pDstTrack->GetLink());
bool ok = pDstTrack &&
(stereo == (pDstTrack->GetLink() != 0)) &&
(!stereo || (pSrcTrack->GetLinked() == pDstTrack->GetLinked()));
if (ok)
trackClip.dstTrack = pDstTrack;
else
return false;
}
}
return true;
}
struct TemporaryClipRemover {
TemporaryClipRemover( ClipMoveState &clipMoveState )
: state( clipMoveState )
@ -601,30 +632,8 @@ UIHandle::Result TimeShiftHandle::Drag
pTrack->GetKind() == Track::Wave
/* && !mCapturedClipIsSelection*/)
{
const int diff =
TrackPosition(*trackList, pTrack.get()) -
TrackPosition(*trackList, mCapturedTrack.get());
for ( auto &trackClip : mClipMoveState.capturedClipArray ) {
if (trackClip.clip) {
// Move all clips up or down by an equal count of audio tracks.
Track *const pSrcTrack = trackClip.track;
auto pDstTrack = NthAudioTrack(*trackList,
diff + TrackPosition(*trackList, pSrcTrack));
// Can only move mono to mono, or left to left, or right to right
// And that must be so for each captured clip
bool stereo = (pSrcTrack->GetLink() != 0);
if (pDstTrack && stereo && !pSrcTrack->GetLinked())
// Assume linked track is wave or null
pDstTrack = static_cast<WaveTrack*>(pDstTrack->GetLink());
bool ok = pDstTrack &&
(stereo == (pDstTrack->GetLink() != 0)) &&
(!stereo || (pSrcTrack->GetLinked() == pDstTrack->GetLinked()));
if (ok)
trackClip.dstTrack = pDstTrack;
else
return RefreshAll;
}
}
if (!FindCorrespondence( *trackList, *pTrack, *mCapturedTrack, mClipMoveState))
return RefreshAll;
// Having passed that test, remove clips temporarily from their
// tracks, so moving clips don't interfere with each other