Method Apply

src/commands/SelectCommand.cpp:104–155

}

bool SelectTimeCommand::Apply(const CommandContext & context){
   // Many commands need focus on track panel.
   // No harm in setting it with a scripted select.
   TrackPanel::Get( context.project ).SetFocus();
   if( !bHasT0 && !bHasT1 )
      return true;

   // Defaults if no value...
   if( !bHasT0 )
      mT0 = 0.0;
   if( !bHasT1 )
      mT1 = 0.0;
   if( !bHasRelativeSpec )
      mRelativeTo = 0;

   AudacityProject * p = &context.project;
   double end = TrackList::Get(*p).GetEndTime();
   double t0;
   double t1;

   auto &selectedRegion = ViewInfo::Get( *p ).selectedRegion;
   switch( bHasRelativeSpec ? mRelativeTo : 0 ){
   default:
   case 0: //project start
      t0 = mT0;
      t1 = mT1;
      break;
   case 1: //project
      t0 = mT0;
      t1 = end + mT1;
      break;
   case 2: //project end;
      t0 = end - mT0;
      t1 = end - mT1;
      break;
   case 3: //selection start
      t0 = mT0 + selectedRegion.t0();
      t1 = mT1 + selectedRegion.t0();
      break;
   case 4: //selection
      t0 = mT0 + selectedRegion.t0();
      t1 = mT1 + selectedRegion.t1();
      break;
   case 5: //selection end
      t0 =  selectedRegion.t1() - mT0;
      t1 =  selectedRegion.t1() - mT1;
      break;
   }

   selectedRegion.setTimes( t0, t1 );
   return true;
}

const ComponentInterfaceSymbol SelectFrequenciesCommand::Symbol
{ XO("Select Frequencies") };