perbaikan 005

<?php

class Controller extends CI_Controller
{

    function __construct()
    {
        parent::__construct();
    }

    function index()
    {
        $this->load->view('view');
    }

    function generateQr()
    {
        $string = $this->input->post('string');

        $this->load->library('ciqrcode'); // pemanggilan library

        $config['cacheable']    = true; // boolean, defaultnya true
        $config['cachedir']     = './assets/'; //string, the default is application/cache/
        $config['errorlog']     = './assets/'; //string, the default is application/logs/
        $config['imagedir']     = './assets/images/'; // direktori penyimpanan qr code
        $config['quality']      = true; // boolean, defaultnya true
        $config['size']         = 1024; // integer, defaultnya 1024;
        $config['black']        = array(224, 255, 255); // array, defaultnya array(255, 255, 255)
        $config['white']        = array(70, 130, 180); // array, defaultnya array(0, 0, 0);
        $this->ciqrcode->initialize($config);

        $image_name = $string.'.png'; // pembuatan nama qr code

        $params['data']     = $string;
        $params['level']    = 'L';
        $params['size']     = 10;
        $params['savename'] = FCPATH.$config['imagedir'].$image_name;
        $qr = $this->ciqrcode->generate($params);
        sleep(3);
        if(is_file(FCPATH.$config['imagedir'].$image_name))
        {
            $this->print_receipt($image_name);
        }
        else
        {
            die('image:'.FCPATH.$config['imagedir'].$image_name."| not found");

        }
        redirect('');
    }

    function print_receipt($string)
    {
        // load library
        require_once(FCPATH.'/vendor/autoload.php');

        // membuat connector printer ke shared printer bernama "printer_a" (yang telah disetting sebelumnya)
        /**
         * cara setting printer:
         * 1. masuk ke control panel -> devices and printers
         * 2. klik kanan printer, pilih "Set as Default Printer"
         * 3. klik kanan printer, pilih "Printer properties"
         * 4. pilih tab "Sharing"
         * 5. centang checkbox "Share this printer"
         * 6. isi nama di kolom "Share name". Share name ini akan digunakan sebagai parameter connector
         * 7. klik apply/OK
         * */
        $connector = new Mike42\Escpos\PrintConnectors\WindowsPrintConnector("printer_a");

        // membuat objek $printer agar dapat di lakukan fungsinya
        $printer = new Mike42\Escpos\Printer($connector);

        $printer->initialize();
        $printer->text("QR CODE");
        $printer->text("\n");

        $printer->initialize();
        $tux = Mike42\Escpos\EscposImage::load(FCPATH.$config['imagedir'].$image_name);
//base_url().'assets/images/'.$string, false);
        $printer->bitImageColumnFormat($tux, Mike42\Escpos\Printer::IMG_DOUBLE_WIDTH || Mike42\Escpos\Printer::IMG_DOUBLE_HEIGHT);
        $printer->text("\n");

        $printer->feed(2); // mencetak 2 baris kosong, agar kertas terangkat ke atas
        $printer->cut();

        $printer->close();
    }
}