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<?php/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: *//*** Contains the Pager_Jumping class** PHP versions 4 and 5** LICENSE: Redistribution and use in source and binary forms, with or without* modification, are permitted provided that the following conditions are met:* 1. Redistributions of source code must retain the above copyright* notice, this list of conditions and the following disclaimer.* 2. Redistributions in binary form must reproduce the above copyright* notice, this list of conditions and the following disclaimer in the* documentation and/or other materials provided with the distribution.* 3. The name of the author may not be used to endorse or promote products* derived from this software without specific prior written permission.** THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.* IN NO EVENT SHALL THE FREEBSD PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.** @category HTML* @package Pager* @author Lorenzo Alberton <l dot alberton at quipo dot it>* @author Richard Heyes <richard@phpguru.org>,* @copyright 2003-2006 Lorenzo Alberton, Richard Heyes* @license http://www.debian.org/misc/bsd.license BSD License (3 Clause)* @version CVS: $Id: Jumping.php,v 1.2 2007-11-06 10:54:04 jp_milcent Exp $* @link http://pear.php.net/package/Pager*//*** require PEAR::Pager_Common base class*/require_once 'Pager/Common.php';/*** Pager_Jumping - Generic data paging class ("jumping window" style)* Handles paging a set of data. For usage see the example.php provided.** @category HTML* @package Pager* @author Lorenzo Alberton <l dot alberton at quipo dot it>* @author Richard Heyes <richard@phpguru.org>,* @copyright 2003-2005 Lorenzo Alberton, Richard Heyes* @license http://www.php.net/license/3_0.txt PHP License 3.0* @link http://pear.php.net/package/Pager*/class Pager_Jumping extends Pager_Common{// {{{ Pager_Jumping()/*** Constructor** @param array $options An associative array of option names* and their values* @access public*/function Pager_Jumping($options = array()){$err = $this->setOptions($options);if ($err !== PAGER_OK) {return $this->raiseError($this->errorMessage($err), $err);}$this->build();}// }}}// {{{ getPageIdByOffset()/*** Returns pageID for given offset** @param $index Offset to get pageID for* @return int PageID for given offset*/function getPageIdByOffset($index){if (!isset($this->_pageData)) {$this->_generatePageData();}if (($index % $this->_perPage) > 0) {$pageID = ceil((float)$index / (float)$this->_perPage);} else {$pageID = $index / $this->_perPage;}return $pageID;}// }}}// {{{ getPageRangeByPageId()/*** Given a PageId, it returns the limits of the range of pages displayed.* While getOffsetByPageId() returns the offset of the data within the* current page, this method returns the offsets of the page numbers interval.* E.g., if you have pageId=3 and delta=10, it will return (1, 10).* PageID of 8 would give you (1, 10) as well, because 1 <= 8 <= 10.* PageID of 11 would give you (11, 20).* If the method is called without parameter, pageID is set to currentPage#.** @param integer PageID to get offsets for* @return array First and last offsets* @access public*/function getPageRangeByPageId($pageid = null){$pageid = isset($pageid) ? (int)$pageid : $this->_currentPage;if (isset($this->_pageData[$pageid]) || is_null($this->_itemData)) {// I'm sure I'm missing something here, but this formula works// so I'm using it until I find something simpler.$start = ((($pageid + (($this->_delta - ($pageid % $this->_delta))) % $this->_delta) / $this->_delta) - 1) * $this->_delta +1;return array(max($start, 1),min($start+$this->_delta-1, $this->_totalPages));} else {return array(0, 0);}}// }}}// {{{ getLinks()/*** Returns back/next/first/last and page links,* both as ordered and associative array.** NB: in original PEAR::Pager this method accepted two parameters,* $back_html and $next_html. Now the only parameter accepted is* an integer ($pageID), since the html text for prev/next links can* be set in the constructor. If a second parameter is provided, then* the method act as it previously did. This hack's only purpose is to* mantain backward compatibility.** @param integer $pageID Optional pageID. If specified, links* for that page are provided instead of current one.* [ADDED IN NEW PAGER VERSION]* @param string $next_html HTML to put inside the next link* [deprecated: use the constructor instead]* @return array Back/pages/next links*/function getLinks($pageID=null, $next_html=''){//BC hackif (!empty($next_html)) {$back_html = $pageID;$pageID = null;} else {$back_html = '';}if (!is_null($pageID)) {$this->links = '';if ($this->_totalPages > $this->_delta) {$this->links .= $this->_printFirstPage();}$_sav = $this->_currentPage;$this->_currentPage = $pageID;$this->links .= $this->_getBackLink('', $back_html);$this->links .= $this->_getPageLinks();$this->links .= $this->_getNextLink('', $next_html);if ($this->_totalPages > $this->_delta) {$this->links .= $this->_printLastPage();}}$back = str_replace(' ', '', $this->_getBackLink());$next = str_replace(' ', '', $this->_getNextLink());$pages = $this->_getPageLinks();$first = $this->_printFirstPage();$last = $this->_printLastPage();$all = $this->links;$linkTags = $this->linkTags;if (!is_null($pageID)) {$this->_currentPage = $_sav;}return array($back,$pages,trim($next),$first,$last,$all,$linkTags,'back' => $back,'pages' => $pages,'next' => $next,'first' => $first,'last' => $last,'all' => $all,'linktags' => $linkTags);}// }}}// {{{ _getPageLinks()/*** Returns pages link** @param $url URL to use in the link* [deprecated: use the constructor instead]* @return string Links* @access private*/function _getPageLinks($url = ''){//legacy setting... the preferred way to set an option now//is adding it to the constuctorif (!empty($url)) {$this->_path = $url;}//If there's only one page, don't display linksif ($this->_clearIfVoid && ($this->_totalPages < 2)) {return '';}$links = '';$limits = $this->getPageRangeByPageId($this->_currentPage);for ($i=$limits[0]; $i<=min($limits[1], $this->_totalPages); $i++) {if ($i != $this->_currentPage) {$this->range[$i] = false;$this->_linkData[$this->_urlVar] = $i;$links .= $this->_renderLink($this->_altPage.' '.$i, $i);} else {$this->range[$i] = true;$links .= $this->_curPageSpanPre . $i . $this->_curPageSpanPost;}$links .= $this->_spacesBefore. (($i != $this->_totalPages) ? $this->_separator.$this->_spacesAfter : '');}return $links;}// }}}}?>