Method Cancel

src/AdornedRulerPanel.cpp:2031–2051

}

auto AdornedRulerPanel::QPHandle::Cancel(AudacityProject *pProject) -> Result
{
   auto result = CommonRulerHandle::Cancel(pProject);

   if (mClicked == Button::Left) {
      if( mParent ) {
         ViewInfo::Get( *pProject ).selectedRegion = mOldSelection;
         mParent->mMouseEventState = mesNone;
         mParent->SetPlayRegion(
            mParent->mOldPlayRegion.GetStart(), mParent->mOldPlayRegion.GetEnd());
         if (mParent->mOldPlayRegion.Active()) {
            // Restore Locked Play region
            SelectUtilities::ActivatePlayRegion(*pProject);
            // and release local lock
            mParent->mOldPlayRegion.SetActive( false );
         }
      }
   }

   return result;
}
#endif

void AdornedRulerPanel::StartQPPlay(