/**
* get point that customer used to spend for each product item
* with $item is null, result is the total points used for all items
*
* @param Mage_Sales_Model_Quote_Item|null $item
* @return int
*/
public function getPointItemSpent($item = null)
{
$container = new Varien_Object(array('point_item_spent' => 0));
Mage::dispatchEvent('rewardpoints_calculation_spending_point_item_spent', array('item' => $item, 'container' => $container));
return $container->getPointItemSpent();
}
