58 lines
1.7 KiB
PHP
58 lines
1.7 KiB
PHP
<?php
|
|
/**
|
|
* @author Gasper Kozak
|
|
* @copyright 2007-2011
|
|
|
|
This file is part of WideImage.
|
|
|
|
WideImage is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU Lesser General Public License as published by
|
|
the Free Software Foundation; either version 2.1 of the License, or
|
|
(at your option) any later version.
|
|
|
|
WideImage is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with WideImage; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
|
|
* @package Internals
|
|
**/
|
|
|
|
/**
|
|
* @package Exceptions
|
|
*/
|
|
class WideImage_UnknownImageOperationException extends WideImage_Exception {}
|
|
|
|
/**
|
|
* Operation factory
|
|
*
|
|
* @package Internals
|
|
**/
|
|
class WideImage_OperationFactory
|
|
{
|
|
static protected $cache = array();
|
|
|
|
static function get($operationName)
|
|
{
|
|
$lcname = strtolower($operationName);
|
|
if (!isset(self::$cache[$lcname]))
|
|
{
|
|
$opClassName = "WideImage_Operation_" . ucfirst($operationName);
|
|
if (!class_exists($opClassName, false))
|
|
{
|
|
$fileName = WideImage::path() . 'Operation/' . ucfirst($operationName) . '.php';
|
|
if (file_exists($fileName))
|
|
require_once $fileName;
|
|
elseif (!class_exists($opClassName))
|
|
throw new WideImage_UnknownImageOperationException("Can't load '{$operationName}' operation.");
|
|
}
|
|
self::$cache[$lcname] = new $opClassName();
|
|
}
|
|
return self::$cache[$lcname];
|
|
}
|
|
}
|