AdornedRulerPanel updates its play region in idle time...

... Eliminating TP_DisplaySelection and making ProjectWindow independent of
AdornedRulerPanel

src/tracks/labeltrack/ui/LabelTextHandle.cpp

@@ -195,7 +195,7 @@ UIHandle::Result LabelTextHandle::Click
    if (!unsafe)
       ProjectHistory::Get( *pProject ).ModifyState(false);
 
-   return result | RefreshCode::RefreshCell | RefreshCode::UpdateSelection;
+   return result | RefreshCode::RefreshCell;
 }
 
 void LabelTextHandle::HandleTextDragRelease(

src/tracks/playabletrack/notetrack/ui/StretchHandle.cpp

@@ -178,7 +178,7 @@ UIHandle::Result StretchHandle::Click
    // newly selected tracks. (I'm really not sure if the label area
    // needs to be refreshed or how to just refresh non-label areas.-RBD)
 
-   return RefreshAll | UpdateSelection;
+   return RefreshAll;
 }
 
 UIHandle::Result StretchHandle::Drag

src/tracks/playabletrack/wavetrack/ui/CutlineHandle.cpp

@@ -162,7 +162,6 @@ UIHandle::Result CutlineHandle::Click
          }
 
          viewInfo.selectedRegion.setTimes(cutlineStart, cutlineEnd);
-         result |= UpdateSelection;
       }
       else if (mLocation.typ == WaveTrackLocation::locationMergePoint) {
          const double pos = mLocation.pos;
@@ -230,7 +229,6 @@ UIHandle::Result CutlineHandle::Release
    case Expand:
       ProjectHistory::Get( *pProject )
          .PushState(_("Expanded Cut Line"), _("Expand"));
-      result |= RefreshCode::UpdateSelection;
       break;
    case Remove:
       ProjectHistory::Get( *pProject )
@@ -251,7 +249,6 @@ UIHandle::Result CutlineHandle::Cancel(AudacityProject *pProject)
       AudacityProject &project = *pProject;
       auto &selectedRegion = ViewInfo::Get( project ).selectedRegion;
       selectedRegion.setTimes( mStartTime, mEndTime );
-      result |= UpdateSelection;
    }
    return result;
 }

src/tracks/ui/PlayIndicatorOverlay.cpp

@@ -181,9 +181,6 @@ void PlayIndicatorOverlay::OnTimer(wxCommandEvent &event)
          playPos,
          viewInfo.GetScreenEndTime() + tolerance);
 
-      // This displays the audio time, too...
-      window.TP_DisplaySelection();
-
       auto gAudioIO = AudioIO::Get();
 
       // BG: Scroll screen if option is set

src/tracks/ui/SelectHandle.cpp

@@ -500,7 +500,6 @@ void SelectHandle::SetUseSnap(bool use)
          ViewInfo::Get( *::GetActiveProject() ),
          mUseSnap ? mSnapEnd.outTime : mSnapEnd.timeSnappedTime,
          nullptr);
-      mChangeHighlight |= RefreshCode::UpdateSelection;
    }
 }
 
@@ -585,7 +584,7 @@ UIHandle::Result SelectHandle::Click
       ProjectHistory::Get( *pProject ).ModifyState(false);
 
       // Do not start a drag
-      return RefreshAll | UpdateSelection | Cancelled;
+      return RefreshAll | Cancelled;
    }
    else if (!event.LeftDown())
       return Cancelled;
@@ -674,7 +673,7 @@ UIHandle::Result SelectHandle::Click
 
       // Full refresh since the label area may need to indicate
       // newly selected tracks.
-      return RefreshAll | UpdateSelection;
+      return RefreshAll;
    }
 
    // II. Unmodified click starts a NEW selection
@@ -707,7 +706,7 @@ UIHandle::Result SelectHandle::Click
             // For persistence of the selection change:
             ProjectHistory::Get( *pProject ).ModifyState(false);
             mSelectionBoundary = SBWidth;
-            return UpdateSelection;
+            return RefreshNone;
          }
          else
 #endif
@@ -779,7 +778,7 @@ UIHandle::Result SelectHandle::Click
       });
 
       Connect(pProject);
-      return RefreshAll | UpdateSelection;
+      return RefreshAll;
    }
    else {
       Connect(pProject);