public function perform(Zend_Image_Adapter_AdapterAbstract $adapter = null)
{
if (null === $adapter) {
require_once 'Zend/Image/Action/Exception.php';
throw new Zend_Image_Action_Exception('No adapter given.');
}
$name = 'Zend_Image_Adapter_' . $adapter->getName() . '_Action_' . $this->getName();
Zend_Loader::loadClass($name);
$actionObject = new $name();
return $actionObject->perform($adapter, $this);
}
/**
* Get the location of the center of the arc
*
* @return Zend_Image_Point
*/
public function getLocation(Zend_Image_Adapter_AdapterAbstract $adapter = null)
{
if ($adapter !== null) {
if ($this->_pointCenter->getX() === null) {
$this->_pointCenter->setX($adapter->getWidth() / 2);
}
if ($this->_pointCenter->getY() === null) {
$this->_pointCenter->setY($adapter->getHeight() / 2);
}
}
return $this->_pointCenter;
}
public function perform(Zend_Image_Adapter_AdapterAbstract $adapter)
{
$newX = $this->getXAmount();
$newY = $this->getYAmount();
if (null === $newX && null === $newY) {
throw new Zend_Image_Action_Exception('No dimensions for resizing were specified, ' . 'at least one dimension should be specified.');
}
$constrain = $this->hasConstrainedProportions();
if (null === $newX) {
if ($constrain) {
$newX = 0;
} else {
$newX = $adapter->getWidth();
}
} elseif (self::TYPE_RELATIVE == $this->getXType()) {
$newX *= $adapter->getWidth() / 100;
}
if (null === $newY) {
if ($constrain) {
$newY = 0;
} else {
$newY = $adapter->getHeight();
}
} elseif (self::TYPE_RELATIVE == $this->getYType()) {
$newY *= $adapter->getHeight() / 100;
}
$this->_yAmountCalculated = $newY;
$this->_xAmountCalculated = $newX;
return parent::perform($adapter);
}
