Method Click

src/tracks/ui/SelectHandle.cpp:540–807

}

UIHandle::Result SelectHandle::Click(
   const TrackPanelMouseEvent &evt, AudacityProject *pProject)
{
   /// This method gets called when we're handling selection
   /// and the mouse was just clicked.

   using namespace RefreshCode;

   const auto pView = mpView.lock();
   if ( !pView )
      return Cancelled;
   auto &view = *pView;

   wxMouseEvent &event = evt.event;
   auto &trackList = TrackList::Get(*pProject);
   const auto pTrack = FindTrack();
   if (!pTrack)
      return Cancelled;
   auto &trackPanel = TrackPanel::Get(*pProject);
   auto &viewInfo = ViewInfo::Get(*pProject);

   mMostRecentX = event.m_x;
   mMostRecentY = event.m_y;

   bool selectChange = (
      event.LeftDown() &&
      event.ControlDown() &&
      pTrack->TypeSwitch<bool>( [&](LabelTrack &){
         // We should reach this, only in default of other hits on glyphs or
         // text boxes.
         bool bShift = event.ShiftDown();
         bool unsafe = ProjectAudioIO::Get( *pProject ).IsAudioActive();
         SelectUtilities::DoListSelection(
            *pProject, *pTrack, bShift, true, !unsafe);
         return true;
       } )
   );
   if ( selectChange )
      // Do not start a drag
      return RefreshAll | Cancelled;

   auto &selectionState = SelectionState::Get( *pProject );
   if (event.LeftDClick() && !event.ShiftDown()) {
      // Deselect all other tracks and select this one.
      selectionState.SelectNone(trackList);

      if (pTrack)
         selectionState.SelectTrack(*pTrack, true, true);

      // Default behavior: select whole track
      SelectionState::SelectTrackLength(
         viewInfo, *pTrack, SyncLockState::Get(*pProject).IsSyncLocked());

      // Special case: if we're over a clip in a WaveTrack,
      // select just that clip
      if (const auto pWc = view.FindChannel<WaveChannel>()) {
         auto &wc = *pWc;
         auto time = viewInfo.PositionToTime(event.m_x, mRect.x);