php 重写分页器 CLinkPager的实例(2)

/**

• Creates a page button.
• You may override this method to customize the page buttons.
• @param string $label the text label for the button
• @param integer $page the page number
• @param string $class the CSS class for the page button.
• @param boolean $hidden whether this page button is visible
• @param boolean $selected whether this page button is selected
• @return string the generated button
  */
  protected function createPageButton($label,$class,$hidden,$selected)
  {
  if($hidden || $selected)
  $class.=' '.($hidden ? $this->hiddenPageCssClass : $this->selectedPageCssClass);
  if ($selected) {
  $result = "" . ++$page . "";
  } else {
  $result = CHtml::link($label,$this->createPageUrl($page));
  }
  return $result;
  }

/**

• @return array the begin and end pages that need to be displayed.
  /
  protected function getPageRange()
  {
  $currentPage=$this->getCurrentPage();
  $pageCount=$this->getPageCount();
  /$beginPage=max(0,$currentPage-(int)($this->maxButtonCount/2));
  if(($endPage=$beginPage+$this->maxButtonCount-1)>=$pageCount)
  {
  $endPage=$pageCount-1;
  $beginPage=max(0,$endPage-$this->maxButtonCount+1);
  }*/
  if($pageCount > $this->maxButtonCount){
  if($currentPage > 4 && $currentPage < ($pageCount - 4)){
  // print_r('a');
  $beginPage = $currentPage - 2;
  $endPage = $currentPage + 2;
  $ellipsis = 'both';
  }else{
  $beginPage=max(1,$currentPage-(int)($this->maxButtonCount/2));
  if($beginPage == 1){
  $ellipsis = 'right';
  }else{
  $ellipsis = 'left';
  }
  if(($endPage=$beginPage+$this->maxButtonCount-1)>=$pageCount)
  {
  // print_r('b');
  $endPage=$pageCount-2;
  $beginPage=max(1,$endPage-$this->maxButtonCount+1);
  }elseif(($endPage=$beginPage+$this->maxButtonCount-1)>=$pageCount-2){
  // print_r('c');
  $endPage=$pageCount-2;
  }

  }
  }else{
  $beginPage=max(1,$currentPage-(int)($this->maxButtonCount/2));
  if(($endPage=$beginPage+$this->maxButtonCount-1)>=$pageCount)
  {
  $endPage=$pageCount-2;
  $beginPage=max(1,$endPage-$this->maxButtonCount+1);
  }
  }

return array($beginPage,$ellipsis);

}

/**

• Registers the needed client scripts (mainly CSS file).
  */
  public function registerClientScript()
  {
  if($this->cssFile!==false)
  self::registerCssFile($this->cssFile);
  }

/**

• Registers the needed CSS file.
• @param string $url the CSS URL. If null,a default CSS URL will be used.
  */
  public static function registerCssFile($url=null)
  {
  if($url===null)
  $url=CHtml::asset(Yii::getPathOfAlias('system.web.widgets.pagers.pager').'.css');
  Yii::app()->getClientScript()->registerCssFile($url);
  }
  }

3、调用方式

（编辑：ASP站长网）