* Correctly use the VRKey for all vr variables... instead of TagName

[gdcm.git] / src / gdcmVRKey.h

diff --git a/src/gdcmVRKey.h b/src/gdcmVRKey.h
new file mode 100644 (file)
index 0000000..7144937
--- /dev/null
+++ b/src/gdcmVRKey.h
@@ -0,0 +1,125 @@
+/*=========================================================================
+                                                                                
+  Program:   gdcm
+  Module:    $RCSfile: gdcmVRKey.h,v $
+  Language:  C++
+  Date:      $Date: 2005/10/18 12:58:29 $
+  Version:   $Revision: 1.1 $
+                                                                                
+  Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de
+  l'Image). All rights reserved. See Doc/License.txt or
+  http://www.creatis.insa-lyon.fr/Public/Gdcm/License.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 GDCMVRKEY_H
+#define GDCMVRKEY_H
+
+#include "gdcmCommon.h"
+#include "gdcmDebug.h"
+
+#include <assert.h>
+
+namespace gdcm 
+{
+//-----------------------------------------------------------------------------
+class VRKey
+{
+public :
+   inline VRKey() { key[0] = key[1] = ' ';}
+   inline VRKey(const char *_key) { key[0] = _key[0]; key[1] = _key[1];}
+   inline VRKey(const std::string &_key) { key[0] = _key[0]; key[1] = _key[1];}
+
+   inline std::string str() const { return std::string(key,2); }
+
+   friend std::ostream& operator<<(std::ostream& _os, const VRKey &_val);
+   friend std::istream& operator>>(std::istream& _is, VRKey &_val);
+
+   inline VRKey &operator=(const VRKey &_val)
+   {
+      key[0] = _val.key[0];
+      key[1] = _val.key[1];
+      return *this;
+   }
+   inline VRKey &operator=(const std::string &_val)
+   {
+      key[0] = _val[0];
+      key[1] = _val[1];
+      return *this;
+   }
+   inline VRKey &operator=(const char *_val)
+   {
+      key[0] = _val[0];
+      key[1] = _val[1];
+      return *this;
+   }
+
+   inline const char &operator[](const unsigned int &_id) const
+   {
+      assert(_id<2);
+      return key[_id];
+   }
+   inline char &operator[](const unsigned int &_id)
+   {
+      assert(_id<2);
+      return key[_id];
+   }
+
+   inline bool operator==(const VRKey &_val) const
+   {
+      return key[0] == _val.key[0] && key[1] == _val.key[1];
+   }
+   inline bool operator==(const std::string &_val) const
+   {
+      return key[0] == _val[0] && key[1] == _val[1];
+   }
+   inline bool operator==(const char *_val) const
+   {
+      return key[0] == _val[0] && key[1] == _val[1];
+   }
+
+   inline bool operator!=(const VRKey &_val) const
+   {
+      return key[0] != _val.key[0] || key[1] != _val.key[1];
+   }
+   inline bool operator!=(const std::string &_val) const
+   {
+      return key[0] != _val[0] || key[1] != _val[1];
+   }
+   inline bool operator!=(const char *_val) const
+   {
+      return key[0] != _val[0] || key[1] != _val[1];
+   }
+
+   inline bool operator<(const VRKey &_val) const
+   {
+      return key[0] < _val[0] || (key[0] == _val[0] && key[1] < _val[1]);
+   }
+
+private :
+   char key[2];
+};
+
+//-----------------------------------------------------------------------------
+inline std::ostream& operator<<(std::ostream& _os, const VRKey &_val)
+{
+   _os << _val.key[0] << _val[1];
+   return _os;
+}
+
+inline std::istream& operator>>(std::istream& _is, VRKey &_val)
+{
+   _is >> _val.key[0] >> _val[1];
+   return _is;
+}
+
+//-----------------------------------------------------------------------------
+
+} // end namespace gdcm
+
+//-----------------------------------------------------------------------------
+#endif