[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 Marker
  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: Plus.php,v 1.7 2005/08/03 21:21:54 nosey Exp $
  28   * @link       http://pear.php.net/package/Image_Graph
  29   */
  30  
  31  /**
  32   * Include file Image/Graph/Marker.php
  33   */
  34  require_once  'Image/Graph/Marker.php';
  35  
  36  /**
  37   * Data marker as a plus.
  38   *
  39   * @category   Images
  40   * @package    Image_Graph
  41   * @subpackage Marker
  42   * @author     Jesper Veggerby <pear.nosey@veggerby.dk>
  43   * @copyright  Copyright (C) 2003, 2004 Jesper Veggerby Hansen
  44   * @license    http://www.gnu.org/copyleft/lesser.html  LGPL License 2.1
  45   * @version    Release: 0.7.2
  46   * @link       http://pear.php.net/package/Image_Graph
  47   */
  48  class Image_Graph_Marker_Plus extends Image_Graph_Marker
  49  {
  50      
  51      /**
  52       * The thickness of the plus in pixels (thickness is actually double this)
  53       * @var int
  54       * @access private
  55       */
  56      var $_thickness = 2;
  57      
  58      /**
  59       * Draw the marker on the canvas
  60       *
  61       * @param int $x The X (horizontal) position (in pixels) of the marker on
  62       *   the canvas
  63       * @param int $y The Y (vertical) position (in pixels) of the marker on the
  64       *   canvas
  65       * @param array $values The values representing the data the marker 'points'
  66       *   to
  67       * @access private
  68       */
  69      function _drawMarker($x, $y, $values = false)
  70      {
  71          if ($this->_thickness > 0) {
  72              $this->_getLineStyle();
  73              $this->_getFillStyle();
  74              $this->_canvas->addVertex(array('x' => $x - $this->_size, 'y' => $y - $this->_thickness));
  75              $this->_canvas->addVertex(array('x' => $x - $this->_thickness, 'y' => $y - $this->_thickness));
  76              $this->_canvas->addVertex(array('x' => $x - $this->_thickness, 'y' => $y - $this->_size));
  77              $this->_canvas->addVertex(array('x' => $x + $this->_thickness, 'y' => $y - $this->_size));
  78              $this->_canvas->addVertex(array('x' => $x + $this->_thickness, 'y' => $y - $this->_thickness));
  79              $this->_canvas->addVertex(array('x' => $x + $this->_size, 'y' => $y - $this->_thickness));
  80              $this->_canvas->addVertex(array('x' => $x + $this->_size, 'y' => $y + $this->_thickness));
  81              $this->_canvas->addVertex(array('x' => $x + $this->_thickness, 'y' => $y + $this->_thickness));
  82              $this->_canvas->addVertex(array('x' => $x + $this->_thickness, 'y' => $y + $this->_size));
  83              $this->_canvas->addVertex(array('x' => $x - $this->_thickness, 'y' => $y + $this->_size));
  84              $this->_canvas->addVertex(array('x' => $x - $this->_thickness, 'y' => $y + $this->_thickness));
  85              $this->_canvas->addVertex(array('x' => $x - $this->_size, 'y' => $y + $this->_thickness));
  86              $this->_canvas->polygon(array('connect' => true));
  87          } else {
  88              $this->_getLineStyle();
  89              $this->_canvas->line(array('x0' => $x - $this->_size, 'y0' => $y, 'x1' => $x + $this->_size, 'y1' => $y));
  90              $this->_getLineStyle();
  91              $this->_canvas->line(array('x0' => $x, 'y0' => $y - $this->_size, 'x1' => $x, 'y1' => $y + $this->_size));
  92          }
  93          parent::_drawMarker($x, $y, $values);
  94      }
  95  
  96  }
  97  
  98  ?>