Fix play mode

Author: dcwhite

src/Interface/Modules/Math/GetMatrixSliceDialog.cc

@@ -99,11 +99,11 @@ void GetMatrixSliceDialog::selectLastIndex()
 
 void GetMatrixSliceDialog::startPlay()
 {
-  state_->setTransientValue(Parameters::PlayMode, GetMatrixSliceAlgo::PLAY);
+  state_->setTransientValue(Parameters::PlayMode, static_cast<int>(GetMatrixSliceAlgo::PLAY));
   Q_EMIT executeActionTriggered();
 }
 
 void GetMatrixSliceDialog::stopPlay()
 {
-  state_->setTransientValue(Parameters::PlayMode, GetMatrixSliceAlgo::PAUSE);
+  state_->setTransientValue(Parameters::PlayMode, static_cast<int>(GetMatrixSliceAlgo::PAUSE));
 }

src/Modules/Math/GetMatrixSlice.cc

@@ -85,5 +85,10 @@ void GetMatrixSlice::execute()
     {
       playing_ = false;
     }
+    else if (playMode != 0)
+    {
+      playing_ = false;
+      remark("Logical error: received invalid play mode value");
+    }
   }
 }