<?php
/**
 *  
 * @author  Benjamin Gillissen <hide@address.com>
 * 
 *	**************************************************************

	Copyright (C) 2009  Benjamin Gillissen
	
	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.
	
	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 at:
	http://www.gnu.org/copyleft/gpl.html

 *	**************************************************************
 */
class pg_helper {
	
	protected $pageid, $args;
	
	public function __construct($pageid, $args, $pfeats=array(), $ajax=array() ){ 
		$this->pageid = $pageid;
		$this->args = $args;
		foreach($pfeats as $feat => &$conf){
			$func = "pfeat_$feat::implent";
			if ( FALSE === call_user_func($func, $pageid, $conf) ){ 
				errors::raise("Active Page could not implent PFeat : ".$feat, CORE_LOG_NOTICE, 'PGEN');
			}
		}
		foreach($ajax as $k => &$cb){ ajax::RegisterFunction($cb); }
	}
	
		
	protected function handle_paged($bp, $count, $active=1){
		if ( $bp == 0 ){
			errors::raise("ByPage element coult not be set to 0, forcing 10", CORE_LOG_ERROR, 'PGEN'); 
			$bp=10; 
		}
		$totpage = ($count / $bp);
		if ( $totpage == 0 ){ $totpage = 1; }
		if ( is_float($totpage) ){ $totpage = ceil($totpage); }
		if ( $active > $totpage ){ $active = $totpage; }
		$o['start'] 	= (($active-1) * $bp);
		$o['end'] 		= $o['start'] + $bp;
		$o['count']		= langs::number($count);
		$o['bp']		= langs::number($bp);
		$left		= $count - $o['start'];
		if ( $left < $bp ){
			$o['view'] = $left;
		} else {
			$o['view']	= $o['end'] - $o['start'];
		}
		unset($left);
		$o['totpage']	= langs::number($totpage);
		$o['curpage']	= $active;
		$o['showprev']	= ( $active != 1);
		$o['prevpage']	= ($active-1);
		$o['shownext']	= ( $active < $totpage );
		$o['nextpage']	= ($active+1);
		return $o;
	}
	

}