topical media & game development
[] readme course(s) preface I 1 2 II 3 4 III 5 6 7 IV 8 9 10 V 11 12 afterthought(s) appendix reference(s) example(s) resource(s) _

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professional-php-04-abstract-widget.php / php



  <?php
  
  interface Observer {
    public function update(Observable subject);
  }
  
  abstract class Widget implements Observer {
  
    protected internalData = array();
  
    abstract public function draw();
  
    public function update(Observable subject) {
           this->internalData = subject->getData();
    }
  }
  
  class BasicWidget extends Widget {
  
    function __construct() {
    }
  
    public function draw() {
           html = "<table border=1 width=130>";
           html .= "<tr><td colspan=3 bgcolor=#cccccc>
                          <b>Instrument Info<b></td></tr>";
  
           numRecords = count(this->internalData[0]);
           for(i = 0; i < numRecords; i++) {
                  instms = this->internalData[0];
                  prices = this->internalData[1];
                  years =  this->internalData[2];
                  html .=  "<tr><td>instms[i]</td><td> prices[i]</td>
                             <td>years[i]</td></tr>";
                  }
           html .= "</table><br>";
           echo html;
    }
  }
  
  class FancyWidget extends Widget {
    
    function __construct() {
    }
    
    public function draw() {
           html = 
           "<table border=0 cellpadding=5 width=270 bgcolor=#6699BB>
                  <tr><td colspan=3 bgcolor=#cccccc>
                  <b><span class=blue>Our Latest Prices<span><b>
                  </td></tr>
                  <tr><td><b>instrument</b></td>
                  <td><b>price</b></td><td><b>date issued</b>
                  </td></tr>";
           
           numRecords = count(this->internalData[0]);
           for(i = 0; i < numRecords; i++) {
                  instms = this->internalData[0];
                  prices = this->internalData[1];
                  years =  this->internalData[2];
                  
                  html .= 
                  "<tr><td>instms[i]</td><td> 
                          prices[i]</td><td>years[i]
                          </td></tr>";
                  }
           html .= "</table><br>";
           echo html;
    }
  }
  
  ?>
[] readme course(s) preface I 1 2 II 3 4 III 5 6 7 IV 8 9 10 V 11 12 afterthought(s) appendix reference(s) example(s) resource(s) _

(C) Æliens 20/2/2008

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