[Sommaire] [Imprimer]

   1  <?php
   2  
   3  /* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
   4  
   5  /**
   6   * Image_Graph - PEAR PHP OO Graph Rendering Utility.
   7   *
   8   * PHP versions 4 and 5
   9   *
  10   * LICENSE: This library is free software; you can redistribute it and/or modify
  11   * it under the terms of the GNU Lesser General Public License as published by
  12   * the Free Software Foundation; either version 2.1 of the License, or (at your
  13   * option) any later version. This library is distributed in the hope that it
  14   * will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
  15   * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
  16   * General Public License for more details. You should have received a copy of
  17   * the GNU Lesser General Public License along with this library; if not, write
  18   * to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  19   * 02111-1307 USA
  20   *
  21   * @category   Images
  22   * @package    Image_Graph
  23   * @subpackage DataPreprocessor
  24   * @author     Jesper Veggerby <pear.nosey@veggerby.dk>
  25   * @copyright  Copyright (C) 2003, 2004 Jesper Veggerby Hansen
  26   * @license    http://www.gnu.org/copyleft/lesser.html  LGPL License 2.1
  27   * @version    CVS: $Id: DataPreprocessor.php,v 1.7 2005/08/24 20:35:55 nosey Exp $
  28   * @link       http://pear.php.net/package/Image_Graph
  29   */
  30  
  31  /**
  32   * Data preprocessor used for preformatting a data.
  33   *
  34   * A data preprocessor is used in cases where a value from a dataset or label must be
  35   * displayed in another format or way than entered. This could for example be the need
  36   * to display X-values as a date instead of 1, 2, 3, .. or even worse unix-timestamps.
  37   * It could also be when a {@link Image_Graph_Marker_Value} needs to display values as percentages
  38   * with 1 decimal digit instead of the default formatting (fx. 12.01271 -> 12.0%).
  39   *
  40   * @category   Images
  41   * @package    Image_Graph
  42   * @subpackage DataPreprocessor
  43   * @author     Jesper Veggerby <pear.nosey@veggerby.dk>
  44   * @copyright  Copyright (C) 2003, 2004 Jesper Veggerby Hansen
  45   * @license    http://www.gnu.org/copyleft/lesser.html  LGPL License 2.1
  46   * @version    Release: 0.7.2
  47   * @link       http://pear.php.net/package/Image_Graph
  48   * @abstract
  49   */
  50  class Image_Graph_DataPreprocessor
  51  {
  52  
  53      /**
  54       * Image_Graph_DataPreprocessor [Constructor].
  55       */
  56      function Image_Graph_DataPreprocessor()
  57      {
  58      }
  59  
  60      /**
  61       * Process the value
  62       *
  63       * @param var $value The value to process/format
  64       * @return string The processed value
  65       * @access private
  66       */
  67      function _process($value)
  68      {
  69          return $value;
  70      }
  71  
  72  }
  73  
  74  ?>