LinearStringDrawer.class.php

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00001 <?php
00002 /***************************************************************************
00003  *   Copyright (C) 2004-2007 by Dmitry E. Demidov                          *
00004  *                                                                         *
00005  *   This program is free software; you can redistribute it and/or modify  *
00006  *   it under the terms of the GNU Lesser General Public License as        *
00007  *   published by the Free Software Foundation; either version 3 of the    *
00008  *   License, or (at your option) any later version.                       *
00009  *                                                                         *
00010  ***************************************************************************/
00011 
00015     final class LinearStringDrawer extends TextDrawer
00016     {
00020         public function draw($string)
00021         {
00022             $maxHeight = $this->getMaxCharacterHeight();
00023             $y = round($this->getTuringImage()->getHeight() / 2 + $maxHeight / 2);
00024             
00025             $textWidth = $this->getTextWidth($string);
00026             
00027             if ($this->getTuringImage()->getWidth() <= $textWidth)
00028                 return $this->showError();
00029             
00030             $x = round(($this->getTuringImage()->getWidth() - $textWidth) / 2);
00031             $angle = 0;
00032             
00033             for ($i = 0, $length = strlen($string); $i < $length; ++$i) {
00034                 $character = $string[$i];
00035                 $this->drawCraracter($angle, $x, $y, $character);
00036                 $x += $this->getStringWidth($character) + $this->getSpace();
00037             }
00038             
00039             return $this;
00040         }
00041     }
00042 ?>