<?php /** * Zend Framework * * LICENSE * * This source file is subject to the new BSD license that is bundled * with this package in the file LICENSE.txt. * It is also available through the world-wide-web at this URL: * http://framework.zend.com/license/new-bsd * If you did not receive a copy of the license and are unable to * obtain it through the world-wide-web, please send an email * to license@zend.com so we can send you a copy immediately. * * @category Zend * @package Zend_Paginator * @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com) * @license http://framework.zend.com/license/new-bsd New BSD License * @version $Id$ */ /** * @see Zend_Paginator_ScrollingStyle_Interface */ require_once 'Zend/Paginator/ScrollingStyle/Interface.php'; /** * A Yahoo! Search-like scrolling style. The cursor will advance to * the middle of the range, then remain there until the user reaches * the end of the page set, at which point it will continue on to * the end of the range and the last page in the set. * * @link http://search.yahoo.com/search?p=Zend+Framework * @category Zend * @package Zend_Paginator * @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com) * @license http://framework.zend.com/license/new-bsd New BSD License */ class Zend_Paginator_ScrollingStyle_Sliding implements Zend_Paginator_ScrollingStyle_Interface { /** * Returns an array of "local" pages given a page number and range. * * @param Zend_Paginator $paginator * @param integer $pageRange (Optional) Page range * @return array */ public function getPages(Zend_Paginator $paginator, $pageRange = null) { if ($pageRange === null) { $pageRange = $paginator->getPageRange(); } $pageNumber = $paginator->getCurrentPageNumber(); $pageCount = count($paginator); if ($pageRange > $pageCount) { $pageRange = $pageCount; } $delta = ceil($pageRange / 2); if ($pageNumber - $delta > $pageCount - $pageRange) { $lowerBound = $pageCount - $pageRange + 1; $upperBound = $pageCount; } else { if ($pageNumber - $delta < 0) { $delta = $pageNumber; } $offset = $pageNumber - $delta; $lowerBound = $offset + 1; $upperBound = $offset + $pageRange; } return $paginator->getPagesInRange($lowerBound, $upperBound); } }