/**
* Returns an instance of self
*
* This is the usual singleton function that returns / instantiates the object
*
* @return JO_Phpthumb
*/
public static function getInstance()
{
if (!self::$_instance instanceof self) {
self::$_instance = new self();
}
return self::$_instance;
}
$this->parentInstance = $that;
$this->oldImage = $this->parentInstance->getOldImage();
$this->currentDimensions = $this->parentInstance->getCurrentDimensions();
$this->workingImage = $this->parentInstance->getWorkingImage();
$this->options = $this->parentInstance->getOptions();
// make sure our arguments are valid
if (!is_numeric($width)) {
throw new InvalidArgumentException('$maxWidth must be numeric');
}
if (!is_numeric($height)) {
throw new InvalidArgumentException('$maxHeight must be numeric');
}
// get the new dimensions...
$this->newDimensions = array('newWidth' => $width, 'newHeight' => $height);
// create the working image
if (function_exists('imagecreatetruecolor')) {
$this->workingImage = imagecreatetruecolor($this->newDimensions['newWidth'], $this->newDimensions['newHeight']);
} else {
$this->workingImage = imagecreate($this->newDimensions['newWidth'], $this->newDimensions['newHeight']);
}
//$this->parentInstance->preserveAlpha();
// and create the newly sized image
imagecopyresampled($this->workingImage, $this->oldImage, 0, 0, 0, 0, $this->newDimensions['newWidth'], $this->newDimensions['newHeight'], $this->currentDimensions['width'], $this->currentDimensions['height']);
// update all the variables and resources to be correct
$this->parentInstance->setOldImage($this->workingImage);
$this->parentInstance->setCurrentDimensions($this->newDimensions);
return $that;
}
}
$pt = JO_Phpthumb::getInstance();
$pt->registerPlugin('JO_Phpthumb_Plugins_Gdcustombedita', 'gd');
/**
* Factory Function
*
* This function returns the correct thumbnail object, augmented with any appropriate plugins.
* It does so by doing the following:
* - Getting an instance of PhpThumb
* - Loading plugins
* - Validating the default implemenation
* - Returning the desired default implementation if possible
* - Returning the GD implemenation if the default isn't available
* - Throwing an exception if no required libraries are present
*
* @return GdThumb
* @uses PhpThumb
* @param string $filename The path and file to load [optional]
*/
public static function create($filename = null, $options = array(), $isDataStream = false)
{
self::$pluginPath = dirname(__FILE__) . '/Plugins/';
// map our implementation to their class names
$implementationMap = array('imagick' => 'JO_Phpthumb_Factory_Imagick', 'gd' => 'JO_Phpthumb_Factory_Gd');
// grab an instance of PhpThumb
$pt = JO_Phpthumb::getInstance();
// load the plugins
$pt->loadPlugins(self::$pluginPath);
$toReturn = null;
$implementation = self::$defaultImplemenation;
// attempt to load the default implementation
if ($pt->isValidImplementation(self::$defaultImplemenation)) {
$imp = $implementationMap[self::$defaultImplemenation];
$toReturn = new $imp($filename, $options, $isDataStream);
} else {
if ($pt->isValidImplementation('gd')) {
$imp = $implementationMap['gd'];
$implementation = 'gd';
$toReturn = new $imp($filename, $options, $isDataStream);
} else {
throw new Exception('You must have either the GD or iMagick extension loaded to use this library');
}
}
$registry = $pt->getPluginRegistry($implementation);
$toReturn->importPlugins($registry);
return $toReturn;
}
