[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 Figure
  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: Ellipse.php,v 1.9 2005/08/24 20:36:00 nosey Exp $
  28   * @link       http://pear.php.net/package/Image_Graph
  29   */
  30  
  31  /**
  32   * Include file Image/Graph/Element.php
  33   */
  34  require_once  'Image/Graph/Element.php';
  35  
  36  /**
  37   * Ellipse to draw on the canvas
  38   *
  39   * @category   Images
  40   * @package    Image_Graph
  41   * @subpackage Figure
  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_Figure_Ellipse extends Image_Graph_Element
  49  {
  50  
  51      /**
  52       * Ellipse [Constructor]
  53       *
  54       * @param int $x The center pixel of the ellipse on the canvas
  55       * @param int $y The center pixel of the ellipse on the canvas
  56       * @param int $radiusX The width in pixels of the box on the canvas
  57       * @param int $radiusY The height in pixels of the box on the canvas
  58       */
  59      function Image_Graph_Figure_Ellipse($x, $y, $radiusX, $radiusY)
  60      {
  61          parent::Image_Graph_Element();
  62          $this->_setCoords($x - $radiusX, $y - $radiusY, $x + $radiusX, $y + $radiusY);
  63      }
  64  
  65      /**
  66       * Output the ellipse
  67       *
  68       * @return bool Was the output 'good' (true) or 'bad' (false).
  69       * @access private
  70       */
  71      function _done()
  72      {
  73          if (parent::_done() === false) {
  74              return false;
  75          }
  76          
  77          $this->_canvas->startGroup(get_class($this));
  78  
  79          $this->_getFillStyle();
  80          $this->_getLineStyle();
  81          $this->_canvas->ellipse(
  82              array(
  83                  'x' => ($this->_left + $this->_right) / 2,
  84                  'y' => ($this->_top + $this->_bottom) / 2,
  85                  'rx' => $this->width(),
  86                  'ry' => $this->height()
  87              )
  88          );
  89          
  90          $this->_canvas->endGroup();
  91          
  92          return true;
  93      }
  94  
  95  }
  96  
  97  ?>