ENH: Guard legacy SetSeed() in region growing filter tests

Wrap SetSeed() calls in ITK_LEGACY_REMOVE preprocessor guards in the
test files for ConfidenceConnectedImageFilter,
ConnectedThresholdImageFilter, NeighborhoodConnectedImageFilter, and
VectorConfidenceConnectedImageFilter. Add AddSeed() as the modern
replacement in the else branch. Consistent with
itkIsolatedConnectedImageFilterTest.cxx.

Author: blowekamp

Modules/Segmentation/RegionGrowing/test/itkConfidenceConnectedImageFilterTest.cxx

@@ -56,7 +56,11 @@ itkConfidenceConnectedImageFilterTest(int argc, char * argv[])
   seed[1] = std::stoi(argv[4]);
   //  FilterType::IndexType seed; seed[0] = 56; seed[1] = 90;
   //  FilterType::IndexType seed; seed[0] = 96; seed[1] = 214;
+#if !defined(ITK_LEGACY_REMOVE)
   filter->SetSeed(seed);
+#else
+  filter->AddSeed(seed);
+#endif
   filter->SetMultiplier(2.5);
   filter->SetReplaceValue(255);
   filter->SetNumberOfIterations(10);

Modules/Segmentation/RegionGrowing/test/itkConnectedThresholdImageFilterTest.cxx

@@ -79,7 +79,11 @@ itkConnectedThresholdImageFilterTest(int argc, char * argv[])
     return EXIT_FAILURE;
   }
 
+#if !defined(ITK_LEGACY_REMOVE)
   connectedThresholdFilter->SetSeed(seed);
+#else
+  connectedThresholdFilter->AddSeed(seed);
+#endif
 
 
   ConnectedThresholdImageFilterType::InputPixelObjectType * lowerInputPixelObject =

Modules/Segmentation/RegionGrowing/test/itkNeighborhoodConnectedImageFilterTest.cxx

@@ -49,7 +49,11 @@ itkNeighborhoodConnectedImageFilterTest(int argc, char * argv[])
 
   seed[0] = std::stoi(argv[3]);
   seed[1] = std::stoi(argv[4]);
+#if !defined(ITK_LEGACY_REMOVE)
   filter->SetSeed(seed);
+#else
+  filter->AddSeed(seed);
+#endif
 
   filter->SetLower(0);
   filter->SetUpper(210);

Modules/Segmentation/RegionGrowing/test/itkVectorConfidenceConnectedImageFilterTest.cxx

@@ -104,8 +104,10 @@ itkVectorConfidenceConnectedImageFilterTest(int argc, char * argv[])
   writer->SetFileName(argv[2]);
   writer->Update();
 
-  // Exercise SetSeed() method
+#if !defined(ITK_LEGACY_REMOVE)
+  // Exercise deprecated SetSeed() method
   filter->SetSeed(seed1);
+#endif
 
 
   using VectorImageType = itk::VectorImage<PixelComponentType, Dimension>;