78 lines
2.6 KiB
PHP
78 lines
2.6 KiB
PHP
<?php
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/**
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* Zend Framework
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*
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* LICENSE
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*
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* This source file is subject to the new BSD license that is bundled
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* with this package in the file LICENSE.txt.
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* It is also available through the world-wide-web at this URL:
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* http://framework.zend.com/license/new-bsd
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* If you did not receive a copy of the license and are unable to
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* obtain it through the world-wide-web, please send an email
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* to license@zend.com so we can send you a copy immediately.
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*
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* @category Zend
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* @package Zend_Paginator
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* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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* @version $Id: Sliding.php 10013 2008-07-09 21:08:06Z norm2782 $
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*/
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/**
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* @see Zend_Paginator_ScrollingStyle_Interface
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*/
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require_once 'Zend/Paginator/ScrollingStyle/Interface.php';
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/**
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* A Yahoo! Search-like scrolling style. The cursor will advance to
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* the middle of the range, then remain there until the user reaches
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* the end of the page set, at which point it will continue on to
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* the end of the range and the last page in the set.
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*
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* @link http://search.yahoo.com/search?p=Zend+Framework
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* @category Zend
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* @package Zend_Paginator
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* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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*/
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class Zend_Paginator_ScrollingStyle_Sliding implements Zend_Paginator_ScrollingStyle_Interface
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{
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/**
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* Returns an array of "local" pages given a page number and range.
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*
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* @param Zend_Paginator $paginator
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* @param integer $pageRange (Optional) Page range
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* @return array
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*/
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public function getPages(Zend_Paginator $paginator, $pageRange = null)
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{
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if ($pageRange === null) {
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$pageRange = $paginator->getPageRange();
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}
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$pageNumber = $paginator->getCurrentPageNumber();
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$pageCount = count($paginator);
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if ($pageRange > $pageCount) {
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$pageRange = $pageCount;
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}
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$delta = ceil($pageRange / 2);
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if ($pageNumber - $delta > $pageCount - $pageRange) {
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$lowerBound = $pageCount - $pageRange + 1;
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$upperBound = $pageCount;
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} else {
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if ($pageNumber - $delta < 0) {
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$delta = $pageNumber;
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}
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$offset = $pageNumber - $delta;
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$lowerBound = $offset + 1;
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$upperBound = $offset + $pageRange;
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}
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return $paginator->getPagesInRange($lowerBound, $upperBound);
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}
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} |