[Sommaire] [Imprimer]

   1  <?php
   2  //
   3  // Definition of eZDiffMatrix class
   4  //
   5  // <05-Apr-2006 14:42:42>
   6  //
   7  // SOFTWARE NAME: eZ publish
   8  // SOFTWARE RELEASE: 3.9.0
   9  // BUILD VERSION: 17785
  10  // COPYRIGHT NOTICE: Copyright (C) 1999-2006 eZ systems AS
  11  // SOFTWARE LICENSE: GNU General Public License v2.0
  12  // NOTICE: >
  13  //   This program is free software; you can redistribute it and/or
  14  //   modify it under the terms of version 2.0  of the GNU General
  15  //   Public License as published by the Free Software Foundation.
  16  //
  17  //   This program is distributed in the hope that it will be useful,
  18  //   but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  //   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  //   GNU General Public License for more details.
  21  //
  22  //   You should have received a copy of version 2.0 of the GNU General
  23  //   Public License along with this program; if not, write to the Free
  24  //   Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  25  //   MA 02110-1301, USA.
  26  //
  27  //
  28  
  29  /*! \file ezdiffmatrix.php
  30    eZDiffMatrix class
  31  */
  32  
  33  /*!
  34    \class eZDiffMatrix ezdiffmatrix.php
  35    \ingroup eZDiff
  36    \biref This class will store values concerned with diff data
  37  
  38    The eZDiffMatrix class will avoid storing 0, which for a large matrix will save
  39    memory.
  40  */
  41  
  42  class eZDiffMatrix
  43  {
  44  
  45      /*!
  46        Constructor
  47      */
  48      function eZDiffMatrix( $rows = null, $cols = null)
  49      {
  50          if ( isset( $rows ) && is_numeric( $rows ) )
  51              $this->Rows = $rows;
  52  
  53          if ( isset( $cols ) && is_numeric( $cols ) )
  54              $this->Cols = $cols;
  55      }
  56  
  57      /*!
  58        \public
  59        Sets the dimensions of the matrix
  60      */
  61      function setSize( $nRows, $nCols )
  62      {
  63          $this->Rows = $nRows;
  64          $this->Cols = $nCols;
  65      }
  66  
  67      /*!
  68        \public
  69        This method will set (\a $row, \a $col) in the matrix to \a $value, if
  70        it is not zero.
  71      */
  72      function set( $row, $col, $value )
  73      {
  74          if ( $value !== 0 )
  75          {
  76              $pos = $row * $this->Cols + $col;
  77              $pos = base_convert( $pos, 10, 36 );
  78              $this->Matrix["*$pos"] = $value;
  79          }
  80      }
  81  
  82      /*!
  83        \public
  84        This method will return the value at position (\a $row, \a $col)
  85      */
  86      function get( $row, $col )
  87      {
  88          $pos = $row * $this->Cols + $col;
  89          $pos = base_convert( $pos, 10, 36 );
  90          return isset( $this->Matrix["*$pos"] ) ? $this->Matrix["*$pos"] : 0;
  91      }
  92  
  93      ///\privatesection
  94      /// Internal array, holding necessary values.
  95      var $Matrix = array();
  96  
  97      /// Internal variable, width of the matrix.
  98      var $Cols;
  99  
 100      /// Internal variable, height of the matrix.
 101      var $Rows;
 102  }
 103  
 104  ?>