UMovieSceneSection* UMovieSceneSection::SplitSection(float SplitTime)
{
if (!IsTimeWithinSection(SplitTime))
{
return nullptr;
}
SetFlags(RF_Transactional);
if (TryModify())
{
float SectionEndTime = GetEndTime();
// Trim off the right
SetEndTime(SplitTime);
// Create a new section
UMovieSceneTrack* Track = CastChecked<UMovieSceneTrack>(GetOuter());
Track->Modify();
UMovieSceneSection* NewSection = DuplicateObject<UMovieSceneSection>(this, Track);
check(NewSection);
NewSection->SetStartTime(SplitTime);
NewSection->SetEndTime(SectionEndTime);
Track->AddSection(*NewSection);
return NewSection;
}
return nullptr;
}
void FSequencer::DeleteSection(class UMovieSceneSection* Section)
{
UMovieScene* MovieScene = GetFocusedMovieScene();
bool bAnythingRemoved = false;
UMovieSceneTrack* Track = CastChecked<UMovieSceneTrack>( Section->GetOuter() );
// If this check fails then the section is outered to a type that doesnt know about the section
//checkSlow( Track->HasSection(Section) );
Track->SetFlags( RF_Transactional );
FScopedTransaction DeleteSectionTransaction( NSLOCTEXT("Sequencer", "DeleteSection_Transaction", "Delete Section") );
Track->Modify();
Track->RemoveSection(Section);
bAnythingRemoved = true;
if( bAnythingRemoved )
{
UpdateRuntimeInstances();
}
}
void FMoveSection::OnEndDrag(TSharedPtr<FTrackNode> SequencerNode)
{
DraggedKeyHandles.Empty();
if (Section.IsValid())
{
SequencerNode->FixRowIndices();
UMovieSceneTrack* OuterTrack = Cast<UMovieSceneTrack>(Section->GetOuter());
if (OuterTrack)
{
OuterTrack->Modify();
OuterTrack->OnSectionMoved(*Section);
}
}
EndTransaction();
}