From b6a71601408da2d6a5c5a3f149b47ce230691e88 Mon Sep 17 00:00:00 2001
From: Miklos Espak <espakm@gmail.com>
Date: Fri, 12 Aug 2011 16:10:20 +0200
Subject: [PATCH] Atomic node predicates

---
 .../DataManagement/mitkNodePredicateAtomic.cpp     |   47 ++++++++++++++++
 Core/Code/DataManagement/mitkNodePredicateAtomic.h |   59 ++++++++++++++++++++
 Core/Code/files.cmake                              |    1 +
 3 files changed, 107 insertions(+), 0 deletions(-)
 create mode 100644 Core/Code/DataManagement/mitkNodePredicateAtomic.cpp
 create mode 100644 Core/Code/DataManagement/mitkNodePredicateAtomic.h

diff --git a/Core/Code/DataManagement/mitkNodePredicateAtomic.cpp b/Core/Code/DataManagement/mitkNodePredicateAtomic.cpp
new file mode 100644
index 0000000..486564e
--- /dev/null
+++ b/Core/Code/DataManagement/mitkNodePredicateAtomic.cpp
@@ -0,0 +1,47 @@
+/*=========================================================================
+
+Program:   Medical Imaging & Interaction Toolkit
+Language:  C++
+Date:      $Date$
+Version:   $Revision$
+
+Copyright (c) German Cancer Research Center, Division of Medical and
+Biological Informatics. All rights reserved.
+See MITKCopyright.txt or http://www.mitk.org/copyright.html 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.
+
+=========================================================================*/
+
+#include "mitkNodePredicateAtomic.h"
+
+#include "mitkDataNode.h"
+
+
+mitk::NodePredicateAtomic::NodePredicateAtomic(bool value)
+: NodePredicateBase()
+{
+  m_Value = value;
+}
+
+
+mitk::NodePredicateAtomic::~NodePredicateAtomic()
+{
+}
+
+
+bool mitk::NodePredicateAtomic::CheckNode(const mitk::DataNode* node) const
+{
+  if (node == NULL)
+    throw std::invalid_argument("NodePredicateAtomic: invalid node");
+
+  return m_Value;
+}
+
+mitk::NodePredicateAtomic* mitk::NodePredicateAtomic::FALSE =
+    new mitk::NodePredicateAtomic(false);
+
+mitk::NodePredicateAtomic* mitk::NodePredicateAtomic::TRUE =
+    new mitk::NodePredicateAtomic(true);
diff --git a/Core/Code/DataManagement/mitkNodePredicateAtomic.h b/Core/Code/DataManagement/mitkNodePredicateAtomic.h
new file mode 100644
index 0000000..12a22d9
--- /dev/null
+++ b/Core/Code/DataManagement/mitkNodePredicateAtomic.h
@@ -0,0 +1,59 @@
+/*=========================================================================
+
+Program:   Medical Imaging & Interaction Toolkit
+Language:  C++
+Date:      $Date$
+Version:   $Revision$
+
+Copyright (c) German Cancer Research Center, Division of Medical and
+Biological Informatics. All rights reserved.
+See MITKCopyright.txt or http://www.mitk.org/copyright.html 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 MITKNODEPREDICATEATOMIC_H_HEADER_INCLUDED_
+#define MITKNODEPREDICATEATOMIC_H_HEADER_INCLUDED_
+
+#include "mitkNodePredicateBase.h"
+
+namespace mitk {
+
+  //##Documentation
+  //## @brief Atomic predicates that evaluate 'true' or 'false' for every valid node
+  //##
+  //## The class cannot be instantiated. You can refer to its two predefined objects by
+  //## mitk::NodePredicateAtomic::FALSE and mitk::NodePredicateAtomic::TRUE, respectively.
+  //##
+  //## @ingroup DataStorage
+  class MITK_CORE_EXPORT NodePredicateAtomic : public NodePredicateBase
+  {
+  public:
+//    mitkClassMacro(NodePredicateAtomic, NodePredicateBase);
+
+    //##Documentation
+    //## @brief Standard Destructor
+    virtual ~NodePredicateAtomic();
+
+    //##Documentation
+    //## @brief Returns 'true' or 'false' for every valid node. If the parameter is NULL, an exception is thrown.
+    virtual bool CheckNode(const mitk::DataNode* node) const;
+
+    // Smart pointers are not needed, since only these two instances will exist.
+    static NodePredicateAtomic* FALSE;
+    static NodePredicateAtomic* TRUE;
+
+  private:
+    //##Documentation
+    //## @brief Protected constructor, use static instantiation functions instead
+    NodePredicateAtomic(bool value);
+
+    bool m_Value;
+  };
+} // namespace mitk
+
+#endif /* MITKNODEPREDICATEATOMIC_H_HEADER_INCLUDED_ */
diff --git a/Core/Code/files.cmake b/Core/Code/files.cmake
index a0c3235..8ca9efa 100644
--- a/Core/Code/files.cmake
+++ b/Core/Code/files.cmake
@@ -138,6 +138,7 @@ SET(CPP_FILES
   DataManagement/mitkModeOperation.cpp
   DataManagement/mitkNodePredicateAnd.cpp
   DataManagement/mitkNodePredicateBase.cpp
+  DataManagement/mitkNodePredicateAtomic.cpp
   DataManagement/mitkNodePredicateCompositeBase.cpp
   DataManagement/mitkNodePredicateData.cpp
   DataManagement/mitkNodePredicateDataType.cpp
-- 
1.7.4.1