r187: *** empty log message ***

[ctsim.git] / include / array2d.h

diff --git a/include/array2d.h b/include/array2d.h
index 30b92d474d264b6025bc79bcaa7e7f6cda808f92..8c323f4034ca45f3b1449b3ba3f2b50c7db3c2ed 100644 (file)
--- a/include/array2d.h
+++ b/include/array2d.h
@@ -9,11 +9,7 @@
 **  This is part of the CTSim program
 **  Copyright (C) 1983-2000 Kevin Rosenberg
 **
-**  $Id: array2d.h,v 1.3 2000/06/09 01:35:33 kevin Exp $
-**  $Log: array2d.h,v $
-**  Revision 1.3  2000/06/09 01:35:33  kevin
-**  Convert MPI structure to C++ class
-**
+**  $Id: array2d.h,v 1.8 2000/09/02 05:10:39 kevin Exp $
 **
 **  This program is free software; you can redistribute it and/or modify
 **  it under the terms of the GNU General Public License (version 2) as
@@ -32,53 +28,83 @@
 #ifndef ARRAY2D_H
 #define ARRAY2D_H
 
-#include <kstddef.h>
+#include "ctsupport.h"
+
 
 template<class T> 
 class Array2d {
- private:
-    unsigned int nx;
-    unsigned int ny;
-
  public:
-
-    T** array_data;
-
     Array2d (unsigned int x, unsigned int y)
+       : m_nx(x), m_ny(y), array_data(0)
        {
-           nx = x;
-           ny = y;
-           array_data = new T*[nx];
-           
-           for (unsigned int i = 0; i < nx; i++)
-               array_data[i] = new T[ny];
+           allocArray();
        }
 
+    Array2d ()
+       : m_nx(0), m_ny(0), array_data(0)
+       {}
 
     ~Array2d ()
        {
-           for (int i = 0; i < nx; i++)
-               delete array_data[i];
-           delete array_data;
+           deleteArray();
        }
     
-    T** getArray (void) const
+    void initSetSize (unsigned int x, unsigned int y)
+       {
+           m_nx = x;
+           m_ny = y;
+           deleteArray();
+           allocArray();
+       }
+
+    T** getArray () const
        { return array_data; }
 
     T* getColumn (unsigned int x) const
-       { return array_data[x]; }
+       { return (array_data ? array_data[x] : NULL); }
 
     T getPoint (unsigned int x, unsigned int y) const
-       { return (array_data[x][y]); }
+       { return (array_data ? array_data[x][y] : NULL); }
 
-    unsigned int sizeofPixel (void) const 
+    unsigned int sizeofPixel () const 
        {  return sizeof(T); }
 
-    unsigned int sizeofColumn (void) const
-       { return (sizeof(T) * ny); }
+    unsigned int sizeofColumn () const
+       { return (sizeof(T) * m_ny); }
+
+    unsigned int sizeofArray () const
+       { return (sizeof(T) * m_nx * m_ny); }
+
+
+ private:
+    unsigned int m_nx;
+    unsigned int m_ny;
+    T** array_data;
+
+    void allocArray ()
+       {
+           if (array_data)
+               deleteArray();
+
+           array_data = new T*[m_nx];
+           
+           for (unsigned int i = 0; i < m_nx; i++)
+               array_data[i] = new T[m_ny];
+       }
+
+    void deleteArray ()
+       {
+           if (array_data) {
+               for (unsigned int i = 0; i < m_nx; i++)
+                   delete array_data [i];
+               delete array_data;
+               array_data = NULL;
+           }
+       }
+
 
-    unsigned int sizeofArray (void) const
-       { return (sizeof(T) * nx * ny); }
+    Array2d& operator= (const Array2d& rhs); //assignment operator
+    Array2d (const Array2d& rhs);  // copy constructor
 };