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- <?php
- // $Id: pagenav.php 1057 2007-09-17 07:05:32Z dugris $
- // ------------------------------------------------------------------------ //
- // XOOPS - PHP Content Management System //
- // Copyright (c) 2000 XOOPS.org //
- // <http://www.xoops.org/> //
- // ------------------------------------------------------------------------ //
- // This program is free software; you can redistribute it and/or modify //
- // it under the terms of the GNU General Public License as published by //
- // the Free Software Foundation; either version 2 of the License, or //
- // (at your option) any later version. //
- // //
- // You may not change or alter any portion of this comment or credits //
- // of supporting developers from this source code or any supporting //
- // source code which is considered copyrighted (c) material of the //
- // original comment or credit authors. //
- // //
- // This program is distributed in the hope that it will be useful, //
- // but WITHOUT ANY WARRANTY; without even the implied warranty of //
- // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
- // GNU General Public License for more details. //
- // //
- // You should have received a copy of the GNU General Public License //
- // along with this program; if not, write to the Free Software //
- // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA //
- // ------------------------------------------------------------------------ //
- // Author: Kazumi Ono (AKA onokazu) //
- // URL: http://www.myweb.ne.jp/, http://www.xoops.org/, http://jp.xoops.org/ //
- // Project: The XOOPS Project //
- // ------------------------------------------------------------------------- //
-
- /**
- * Class to facilitate navigation in a multi page document/list
- *
- * @package kernel
- * @subpackage util
- *
- * @author Kazumi Ono <onokazu@xoops.org>
- * @copyright (c) 2000-2003 The Xoops Project - www.xoops.org
- */
- class XoopsPageNav
- {
- /**#@+
- * @access private
- */
- var $total;
- var $perpage;
- var $current;
- var $url;
- /**#@-*/
-
- /**
- * Constructor
- *
- * @param int $total_items Total number of items
- * @param int $items_perpage Number of items per page
- * @param int $current_start First item on the current page
- * @param string $start_name Name for "start" or "offset"
- * @param string $extra_arg Additional arguments to pass in the URL
- **/
- function XoopsPageNav($total_items, $items_perpage, $current_start, $start_name="start", $extra_arg="")
- {
- $this->total = intval($total_items);
- $this->perpage = intval($items_perpage);
- $this->current = intval($current_start);
- if ( $extra_arg != '' && ( substr($extra_arg, -5) != '&' || substr($extra_arg, -1) != '&' ) ) {
- $extra_arg .= '&';
- }
- $this->url = $_SERVER['PHP_SELF'].'?'.$extra_arg.trim($start_name).'=';
- }
-
- /**
- * Create text navigation
- *
- * @param integer $offset
- * @return string
- **/
- function renderNav($offset = 4)
- {
- $ret = '';
- if ( $this->total <= $this->perpage ) {
- return $ret;
- }
- $total_pages = ceil($this->total / $this->perpage);
- if ( $total_pages > 1 ) {
- $prev = $this->current - $this->perpage;
- if ( $prev >= 0 ) {
- $ret .= '<a href="'.$this->url.$prev.'"><u>«</u></a> ';
- }
- $counter = 1;
- $current_page = intval(floor(($this->current + $this->perpage) / $this->perpage));
- while ( $counter <= $total_pages ) {
- if ( $counter == $current_page ) {
- $ret .= '<b>('.$counter.')</b> ';
- } elseif ( ($counter > $current_page-$offset && $counter < $current_page + $offset ) || $counter == 1 || $counter == $total_pages ) {
- if ( $counter == $total_pages && $current_page < $total_pages - $offset ) {
- $ret .= '... ';
- }
- $ret .= '<a href="'.$this->url.(($counter - 1) * $this->perpage).'">'.$counter.'</a> ';
- if ( $counter == 1 && $current_page > 1 + $offset ) {
- $ret .= '... ';
- }
- }
- $counter++;
- }
- $next = $this->current + $this->perpage;
- if ( $this->total > $next ) {
- $ret .= '<a href="'.$this->url.$next.'"><u>»</u></a> ';
- }
- }
- return $ret;
- }
-
- /**
- * Create a navigational dropdown list
- *
- * @param boolean $showbutton Show the "Go" button?
- * @return string
- **/
- function renderSelect($showbutton = false)
- {
- if ( $this->total < $this->perpage ) {
- return;
- }
- $total_pages = ceil($this->total / $this->perpage);
- $ret = '';
- if ( $total_pages > 1 ) {
- $ret = '<form name="pagenavform">';
- $ret .= '<select name="pagenavselect" onchange="location=this.options[this.options.selectedIndex].value;">';
- $counter = 1;
- $current_page = intval(floor(($this->current + $this->perpage) / $this->perpage));
- while ( $counter <= $total_pages ) {
- if ( $counter == $current_page ) {
- $ret .= '<option value="'.$this->url.(($counter - 1) * $this->perpage).'" selected="selected">'.$counter.'</option>';
- } else {
- $ret .= '<option value="'.$this->url.(($counter - 1) * $this->perpage).'">'.$counter.'</option>';
- }
- $counter++;
- }
- $ret .= '</select>';
- if ($showbutton) {
- $ret .= ' <input type="submit" value="'._GO.'" />';
- }
- $ret .= '</form>';
- }
- return $ret;
- }
-
- /**
- * Create navigation with images
- *
- * @param integer $offset
- * @return string
- **/
- function renderImageNav($offset = 4)
- {
- if ( $this->total < $this->perpage ) {
- return;
- }
- $total_pages = ceil($this->total / $this->perpage);
- $ret = '';
- if ( $total_pages > 1 ) {
- $ret = '<table><tr>';
- $prev = $this->current - $this->perpage;
- if ( $prev >= 0 ) {
- $ret .= '<td class="pagneutral"><a href="'.$this->url.$prev.'"><</a></td><td><img src="'.XOOPS_URL.'/images/blank.gif" width="6" alt="" /></td>';
- } else {
- $ret .= '<td class="pagno"></a></td><td><img src="'.XOOPS_URL.'/images/blank.gif" width="6" alt="" /></td>';
- }
- $counter = 1;
- $current_page = intval(floor(($this->current + $this->perpage) / $this->perpage));
- while ( $counter <= $total_pages ) {
- if ( $counter == $current_page ) {
- $ret .= '<td class="pagact"><b>'.$counter.'</b></td>';
- } elseif ( ($counter > $current_page-$offset && $counter < $current_page + $offset ) || $counter == 1 || $counter == $total_pages ) {
- if ( $counter == $total_pages && $current_page < $total_pages - $offset ) {
- $ret .= '<td class="paginact">...</td>';
- }
- $ret .= '<td class="paginact"><a href="'.$this->url.(($counter - 1) * $this->perpage).'">'.$counter.'</a></td>';
- if ( $counter == 1 && $current_page > 1 + $offset ) {
- $ret .= '<td class="paginact">...</td>';
- }
- }
- $counter++;
- }
- $next = $this->current + $this->perpage;
- if ( $this->total > $next ) {
- $ret .= '<td><img src="'.XOOPS_URL.'/images/blank.gif" width="6" alt="" /></td><td class="pagneutral"><a href="'.$this->url.$next.'">></a></td>';
- } else {
- $ret .= '<td><img src="'.XOOPS_URL.'/images/blank.gif" width="6" alt="" /></td><td class="pagno"></td>';
- }
- $ret .= '</tr></table>';
- }
- return $ret;
- }
- }
-
- ?>