Listing library

<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

/**

* @property CI_Loader $load

* @property CI_Form_validation $form_validation

* @property CI_Input $input

* @property CI_Email $email

* @property CI_DB_active_record $db

* @property CI_DB_forge $dbforge
 *
 * @property CI_Session $session

*/
class Listing{
    public $settings = array(
    'id' => '',
    'class' => '',
    'width' => '900px',
    'colcount' => 4,
    'gutter' => 20, //in px
    'margins' => 'auto', //left and right from the grid
    'cellclass' => 'gridcell', //CSS class for the cells of the grid
    'cellid' => 'gc', //followed by the number
    'viewchange' => false
    );

    public $values;

    public function grid($data = array()){
    $this->_initiate('grid',$data);
    // If there are no values given, noting to show, so return error
    if(!$this->values){
        return array('html' => ci()->lang->line('g.no_data'),'css' => '');
    }
    $output = array(
        'html' => '',
        'css' => ''
    );

    $output['html'] .= '<div id="'.$this->settings['id'].'" class="grid'.($this->settings['class'] != ''?' '.$this->settings['class']:'').'">';

    $i = 0;
    foreach($this->values as $v){
        $i++;
        // Check if it is the last cell of the row, then dont add the gutter
        if(($i%$this->settings['colcount']) == 0)
        $gutter = '';
        else
        $gutter = 'style="margin-right:'.$this->settings['gutter'].'px"';

        $output['html'] .= '<div id="'.$this->settings['cellid'].$i.'" class="'.$this->settings['cellclass'].'"'.$gutter.'>'.$v.'</div>';
    }
    $output['html'] .= '</div>';

    // CSS Calculation
    $colwidth = ($this->settings['width']-($this->settings['gutter']*($this->settings['colcount']-1)))/$this->settings['colcount'];

    // Gridid CSS
    $output['css'] .= '#'.$this->settings['id'].'{';
        $output['css'] .= 'width:'.$this->settings['width'].';';
        // Add px if margins is not set to auto
        $output['css'] .= 'margin-left:'.$this->settings['margins'].($this->settings['margins'] != 'auto'?'px':'').';';
        $output['css'] .= 'margin-right:'.$this->settings['margins'].($this->settings['margins'] != 'auto'?'px':'').';';
    $output['css'] .= '}';

    //Gridcell CSS
    $output['css'] .= '#'.$this->settings['id'].' .' . $this->settings['cellclass'] . '{';
        $output['css'] .= 'width:'.round($colwidth).'px;';
        $output['css'] .= 'float:left;';
    $output['css'] .= '}';

    return $output;
    }

    public function listview($data = array()){

    }

    public function details($data = array()){

    }
    private function _initiate($type,$data){
    // Get cached files if they're available and it's a viewchange
    if(isset($data['viewchange'])){
        if(ci()->session->flashdata('listingview')){
        $data = unserialize($this->session->flashdata('listingview'));
        }else{
        $this->values = false;
        return false;
        }
    }

    // Overwrite default settings
    if(isset($data['settings'])){
        $this->settings = array_merge($this->settings,$data['settings']);
    }
    if($this->settings['id'] == '')
        $this->settings['id'] = substr(md5(strtotime(time())),0,10);

    $this->settings['id'] = $type . '-' . $this->settings['id'];
    if(isset($data['values'])){
        $this->values = $data['values'];
    }else{
        $this->values = false;
        return false;
    }
    //Save values for viewchange
    ci()->session->set_flashdata('listingview',serialize($data));
    }
}