225 lines
7.4 KiB
PHP
Executable File
225 lines
7.4 KiB
PHP
Executable File
<?php
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class Pagination
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{
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private $_navigationItemCount = 5; //导航栏显示导航总页数
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private $_pageSize = null; //每页项目数
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private $_align = "left"; //导航栏显示位置
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private $_itemCount = null; //总项目数
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private $_pageCount = null; //总页数
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private $_currentPage = null; //当前页
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private $_front = null; //前端控制器
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private $_PageParaName = "page"; //页面参数名称
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private $_firstPageString = "|<<"; //导航栏中第一页显示的字符
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private $_nextPageString = ">>"; //导航栏中前一页显示的字符
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private $_previousPageString = "<<"; //导航栏中后一页显示的字符
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private $_lastPageString = ">>|"; //导航栏中最后一页显示的字符
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public function __construct($itemCount, $page=1,$pageSize=10)
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{
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if(!is_numeric($itemCount) || (!is_numeric($pageSize)))
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throw new Exception("Pagination Error:not Number");
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$this->_itemCount = $itemCount;
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$this->_pageSize = $pageSize;
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$this->_front = Zend_Controller_Front::getInstance();
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$this->_pageCount = ceil($itemCount/$pageSize); //总页数
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//$page = $this->_front->getRequest()->getParam($this->_PageParaName);
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if(empty($page) || (!is_numeric($page))) //为空或不是数字，设置当前页为1
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{
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$this->_currentPage = 1;
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}
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else
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{
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if($page < 1)
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$page = 1;
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if($page > $this->_pageCount)
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$page = $this->_pageCount;
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$this->_currentPage = $page;
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}
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}
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/**
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* 返回当前页
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* @param int 当前页
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*/
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public function getCurrentPage()
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{
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return $this->_currentPage;
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}
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/**
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* 返回导航栏目
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* @return string 导航html
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*/
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public function getNavigation()
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{
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if ($this->_itemCount<$this->_pageSize) return '';
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$navigation = '<div class="PageNavigation">';
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$navigation .= "共<em>$this->_itemCount</em>条 \n";
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$pageCote = ceil($this->_currentPage / ($this->_navigationItemCount - 1)) - 1; //当前页处于第几栏分页
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$pageCoteCount = ceil($this->_pageCount / ($this->_navigationItemCount - 1)); //总分页栏
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$pageStart = $pageCote * ($this->_navigationItemCount -1) + 1; //分页栏中起始页
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$pageEnd = $pageStart + $this->_navigationItemCount - 1; //分页栏中终止页
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if($this->_pageCount < $pageEnd)
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{
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$pageEnd = $this->_pageCount;
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}
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if($pageCote > 0) //首页导航
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{
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$navigation .= '<a href="'.$this->createHref(1)."\">$this->_firstPageString</a> ";
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}
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if($this->_currentPage != 1) //上一页导航
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{
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$navigation .= '<a href="'.$this->createHref($this->_currentPage-1);
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$navigation .= "\">$this->_previousPageString</a> ";
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}
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while ($pageStart <= $pageEnd) //构造数字导航区
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{
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if($pageStart == $this->_currentPage)
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{
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$navigation .= "<strong>$pageStart</strong> ";
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}
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else
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{
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$navigation .= '<a href="'.$this->createHref($pageStart)."\">$pageStart</a> ";
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}
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$pageStart++;
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}
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if($this->_currentPage != $this->_pageCount) //下一页导航
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{
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$navigation .= '<a href="'.$this->createHref($this->_currentPage+1)."\">$this->_nextPageString</a> ";
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}
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if($pageCote < $pageCoteCount-1) //未页导航
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{
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$navigation .= '<a href="'.$this->createHref($this->_pageCount)."\">$this->_lastPageString</a> ";
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}
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//添加直接导航框
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$navigation .= '<input type="text" size="3" onkeydown="if(event.keyCode==13){window.location=\' ';
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$navigation .= $this->createHref().'\'+this.value;return false;}" />';
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$navigation .= "</div>";
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return $navigation;
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}
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/**
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* 取得导航栏显示导航总页数
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*
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* @return int 导航栏显示导航总页数
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*/
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public function getNavigationItemCount()
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{
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return $this->_navigationItemCount;
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}
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/**
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* 设置导航栏显示导航总页数
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*
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* @param int $navigationCount:导航栏显示导航总页数
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*/
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public function setNavigationItemCoun($navigationCount)
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{
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if(is_numeric($navigationCount))
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{
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$this->_navigationItemCount = $navigationCount;
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}
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}
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/**
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* 设置首页显示字符
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* @param string $firstPageString 首页显示字符
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*/
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public function setFirstPageString($firstPageString)
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{
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$this->_firstPageString = $firstPageString;
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}
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/**
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* 设置上一页导航显示字符
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* @param string $previousPageString:上一页显示字符
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*/
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public function setPreviousPageString($previousPageString)
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{
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$this->_previousPageString = $previousPageString;
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}
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/**
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* 设置下一页导航显示字符
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* @param string $nextPageString:下一页显示字符
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*/
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public function setNextPageString($nextPageString)
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{
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$this->_nextPageString = $nextPageString;
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}
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/**
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* 设置未页导航显示字符
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* @param string $nextPageString:未页显示字符
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*/
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public function setLastPageString($lastPageString)
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{
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$this->_lastPageString = $lastPageString;
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}
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/**
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* 设置导航字符显示位置
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* @param string $align:导航位置
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*/
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public function setAlign($align)
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{
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$align = strtolower($align);
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if($align == "center")
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{
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$this->_align = "center";
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}elseif($align == "right")
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{
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$this->_align = "right";
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}else
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{
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$this->_align = "left";
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}
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}
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/**
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* 设置页面参数名称
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* @param string $pageParamName:页面参数名称
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*/
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public function setPageParamName($pageParamName)
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{
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$this->_PageParaName = $pageParamName;
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}
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/**
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* 获取页面参数名称
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* @return string 页面参数名称
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*/
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public function getPageParamName()
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{
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return $this->_PageParaName;
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}
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/**
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* 生成导航链接地址
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* @param int $targetPage:导航页
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* @return string 链接目标地址
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*/
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private function createHref($targetPage = null)
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{
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$params = $this->_front->getRequest()->getParams();
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$controller = $params["controller"];
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$action = $params["action"];
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$targetUrl = "/$controller/$action";
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foreach ($params as $key => $value)
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{
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if($key != "controller" && $key != "module" && $key != "action" && $key != $this->_PageParaName)
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{
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$targetUrl .= "/$key/$value";
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}
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}
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if(isset($targetPage)) //指定目标页
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$targetUrl .= "/$this->_PageParaName/$targetPage";
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else
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$targetUrl .= "/$this->_PageParaName/";
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return $targetUrl;
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}
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} |