COMP: Adding a utils file to provide functors that were deleted by ITK

Utilities/InsightJournal/itkLabelObjectUtils.h

+/*=========================================================================
+
+  Program:   Insight Segmentation & Registration Toolkit
+  Module:    $RCSfile: itkLabelObject.h,v $
+  Language:  C++
+  Date:      $Date: 2005/01/21 20:13:31 $
+  Version:   $Revision: 1.6 $
+
+  Copyright (c) Insight Software Consortium. All rights reserved.
+  See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
+
+     This software is distributed WITHOUT ANY WARRANTY; without even 
+     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
+     PURPOSE.  See the above copyright notices for more information.
+
+=========================================================================*/
+#ifndef __itkLabelObjectUtils_h
+#define __itkLabelObjectUtils_h
+
+#include <deque>
+#include <itkLightObject.h>
+#include "itkLabelMap.h"
+#include "itkLabelObjectLine.h"
+
+namespace itk
+{
+
+
+namespace Functor {
+
+template< class TLabelObject >
+class ITK_EXPORT LabelLabelObjectAccessor
+{
+public:
+  typedef TLabelObject LabelObjectType;
+  typedef typename LabelObjectType::LabelType AttributeValueType;
+
+  inline const AttributeValueType operator()( const LabelObjectType * labelObject )
+    {
+    return labelObject->GetLabel();
+    }
+};
+
+template< class TLabelObject >
+class ITK_EXPORT NumberOfLinesLabelObjectAccessor
+{
+public:
+  typedef TLabelObject LabelObjectType;
+  typedef int AttributeValueType;
+
+  inline const AttributeValueType operator()( const LabelObjectType * labelObject )
+    {
+    return labelObject->GetNumberOfLines();
+    }
+};
+
+template< class TLabelObject, class TAttributeAccessor >
+class LabelObjectComparator
+{
+public:
+  typedef TLabelObject LabelObjectType;
+  typedef TAttributeAccessor AttributeAccessorType;
+  bool operator()( const LabelObjectType * a, const LabelObjectType * b )
+    {
+    return accessor( a ) > accessor( b );
+    }
+private:
+  AttributeAccessorType accessor;
+};
+
+template< class TLabelObject, class TAttributeAccessor >
+class LabelObjectReverseComparator
+{
+public:
+  typedef TLabelObject LabelObjectType;
+  typedef TAttributeAccessor AttributeAccessorType;
+  bool operator()( const LabelObjectType * a, const LabelObjectType * b )
+    {
+    return accessor( a ) < accessor( b );
+    }
+private:
+  AttributeAccessorType accessor;
+};
+
+}
+
+} // end namespace itk
+
+#endif

Utilities/InsightJournal/itkShapeKeepNObjectsLabelMapFilter.txx

@@ -19,6 +19,7 @@
 
 #include "itkShapeKeepNObjectsLabelMapFilter.h"
 #include "itkProgressReporter.h"
+#include "itkLabelObjectUtils.h"
 
 
 namespace itk {

Utilities/InsightJournal/itkStatisticsKeepNObjectsLabelMapFilter.txx

@@ -19,6 +19,7 @@
 
 #include "itkStatisticsKeepNObjectsLabelMapFilter.h"
 #include "itkProgressReporter.h"
+#include "itkLabelObjectUtils.h"
 
 
 namespace itk {