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<?php/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: *//*** Contains the Pager_Sliding 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>* @copyright 2003-2006 Lorenzo Alberton* @license http://www.debian.org/misc/bsd.license BSD License (3 Clause)* @version CVS: $Id: Sliding.php 62 2010-05-06 13:21:56Z jpm $* @link http://pear.php.net/package/Pager*//*** require PEAR::Pager_Common base class*/require_once dirname(__FILE__).'/Common.php';/*** Pager_Sliding - Generic data paging class ("sliding window" style)* Usage examples can be found in the PEAR manual** @category HTML* @package Pager* @author Lorenzo Alberton <l dot alberton at quipo dot it>* @copyright 2003-2005 Lorenzo Alberton* @license http://www.php.net/license/3_0.txt PHP License 3.0* @link http://pear.php.net/package/Pager*/class Pager_Sliding extends Pager_Common{// {{{ Pager_Sliding()/*** Constructor** @param array $options An associative array of option names* and their values* @access public*/function Pager_Sliding($options = array()){//set default Pager_Sliding options$this->_delta = 2;$this->_prevImg = '«';$this->_nextImg = '»';$this->_separator = '|';$this->_spacesBeforeSeparator = 3;$this->_spacesAfterSeparator = 3;$this->_curPageSpanPre = '<b><u>';$this->_curPageSpanPost = '</u></b>';//set custom options$err = $this->setOptions($options);if ($err !== PAGER_OK) {return $this->raiseError($this->errorMessage($err), $err);}$this->build();}// }}}// {{{ getPageIdByOffset()/*** "Overload" PEAR::Pager method. VOID. Not needed here...* @param integer $index Offset to get pageID for* @deprecated* @access public*/function getPageIdByOffset($index=null) { }// }}}// {{{ 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=5 and delta=2, it will return (3, 7).* PageID of 9 would give you (4, 8).* 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)) {$this->_generatePageData();}if (isset($this->_pageData[$pageid]) || is_null($this->_itemData)) {if ($this->_expanded) {$min_surplus = ($pageid <= $this->_delta) ? ($this->_delta - $pageid + 1) : 0;$max_surplus = ($pageid >= ($this->_totalPages - $this->_delta)) ?($pageid - ($this->_totalPages - $this->_delta)) : 0;} else {$min_surplus = $max_surplus = 0;}return array(max($pageid - $this->_delta - $max_surplus, 1),min($pageid + $this->_delta + $min_surplus, $this->_totalPages));}return array(0, 0);}// }}}// {{{ getLinks()/*** Returns back/next/first/last and page links,* both as ordered and associative array.** @param integer $pageID Optional pageID. If specified, links* for that page are provided instead of current one.* @return array back/pages/next/first/last/all links* @access public*/function getLinks($pageID = null){if ($pageID != null) {$_sav = $this->_currentPage;$this->_currentPage = $pageID;$this->links = '';if ($this->_totalPages > (2 * $this->_delta + 1)) {$this->links .= $this->_printFirstPage();}$this->links .= $this->_getBackLink();$this->links .= $this->_getPageLinks();$this->links .= $this->_getNextLink();if ($this->_totalPages > (2 * $this->_delta + 1)) {$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 = $this->linkTags;if ($pageID != null) {$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' => $linkTags);}// }}}// {{{ _getPageLinks()/*** Returns pages link** @return string Links* @access private*/function _getPageLinks($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 = '';if ($this->_totalPages > (2 * $this->_delta + 1)) {if ($this->_expanded) {if (($this->_totalPages - $this->_delta) <= $this->_currentPage) {$expansion_before = $this->_currentPage - ($this->_totalPages - $this->_delta);} else {$expansion_before = 0;}for ($i = $this->_currentPage - $this->_delta - $expansion_before; $expansion_before; $expansion_before--, $i++) {$print_separator_flag = ($i != $this->_currentPage + $this->_delta); // && ($i != $this->_totalPages - 1)$this->range[$i] = false;$this->_linkData[$this->_urlVar] = $i;$links .= $this->_renderLink($this->_altPage.' '.$i, $i). $this->_spacesBefore. ($print_separator_flag ? $this->_separator.$this->_spacesAfter : '');}}$expansion_after = 0;for ($i = $this->_currentPage - $this->_delta; ($i <= $this->_currentPage + $this->_delta) && ($i <= $this->_totalPages); $i++) {if ($i < 1) {++$expansion_after;continue;}// check when to print separator$print_separator_flag = (($i != $this->_currentPage + $this->_delta) && ($i != $this->_totalPages));if ($i == $this->_currentPage) {$this->range[$i] = true;$links .= $this->_curPageSpanPre . $i . $this->_curPageSpanPost;} else {$this->range[$i] = false;$this->_linkData[$this->_urlVar] = $i;$links .= $this->_renderLink($this->_altPage.' '.$i, $i);}$links .= $this->_spacesBefore. ($print_separator_flag ? $this->_separator.$this->_spacesAfter : '');}if ($this->_expanded && $expansion_after) {$links .= $this->_separator . $this->_spacesAfter;for ($i = $this->_currentPage + $this->_delta +1; $expansion_after; $expansion_after--, $i++) {$print_separator_flag = ($expansion_after != 1);$this->range[$i] = false;$this->_linkData[$this->_urlVar] = $i;$links .= $this->_renderLink($this->_altPage.' '.$i, $i). $this->_spacesBefore. ($print_separator_flag ? $this->_separator.$this->_spacesAfter : '');}}} else {//if $this->_totalPages <= (2*Delta+1) show them allfor ($i=1; $i<=$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;}// }}}}?>