class.ilTCPDFRenderer.php

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<?php

require_once './Services/PDFGeneration/interfaces/interface.ilRendererConfig.php';
require_once './Services/PDFGeneration/interfaces/interface.ilPDFRenderer.php';

class ilTCPDFRenderer implements ilRendererConfig, ilPDFRenderer
{
    protected $lng;

    public function __construct()
    {
        global $DIC;
        $this->lng = $DIC['lng'];
    }

    public function addConfigElementsToForm(\ilPropertyFormGUI $form, $service, $purpose)
    {
        $margin_left = new ilTextInputGUI($this->lng->txt('margin_left'), 'margin_left');
        $form->addItem($margin_left);

        $margin_top = new ilTextInputGUI($this->lng->txt('margin_top'), 'margin_top');
        $form->addItem($margin_top);

        $margin_right = new ilTextInputGUI($this->lng->txt('margin_right'), 'margin_right');
        $form->addItem($margin_right);

        $margin_bottom = new ilTextInputGUI($this->lng->txt('margin_bottom'), 'margin_bottom');
        $form->addItem($margin_bottom);

        $image_scale = new ilTextInputGUI($this->lng->txt('image_scale'), 'image_scale');
        $form->addItem($image_scale);
    }

    public function populateConfigElementsInForm(\ilPropertyFormGUI $form, $service, $purpose, $config)
    {
        $form->getItemByPostVar('margin_left')->setValue($config['margin_left']);
        $form->getItemByPostVar('margin_right')->setValue($config['margin_right']);
        $form->getItemByPostVar('margin_top')->setValue($config['margin_top']);
        $form->getItemByPostVar('margin_bottom')->setValue($config['margin_bottom']);
        $form->getItemByPostVar('image_scale')->setValue($config['image_scale']);
    }

    public function validateConfigInForm(\ilPropertyFormGUI $form, $service, $purpose)
    {
        if (true) {
            return true;
        }
    }

    public function getConfigFromForm(\ilPropertyFormGUI $form, $service, $purpose)
    {
        $retval = array(
            'margin_left'               => $form->getItemByPostVar('margin_left')->getValue(),
            'margin_right'              => $form->getItemByPostVar('margin_right')->getValue(),
            'margin_top'                => $form->getItemByPostVar('margin_top')->getValue(),
            'margin_bottom'             => $form->getItemByPostVar('margin_bottom')->getValue(),
            'image_scale'               => $form->getItemByPostVar('image_scale')->getValue(),
        );

        return $retval;
    }


    public function getDefaultConfig($service, $purpose)
    {
        $retval = array(
            'margin_left'               => '10',
            'margin_top'                => '10',
            'margin_right'              => '10',
            'margin_bottom'             => '10',
            'image_scale'               => '1',
        );

        return $retval;
    }

    public function generatePDF($service, $purpose, $config, $job)
    {
        require_once 'libs/composer/vendor/autoload.php';

        // create new PDF document
        $pdf = new TCPDF(PDF_PAGE_ORIENTATION, PDF_UNIT, PDF_PAGE_FORMAT, true, 'UTF-8', false);

        $pdf->SetMargins($config['margin_left'], $config['margin_top'], $config['margin_right']);
        $pdf->SetAutoPageBreak('auto', $config['margin_buttom']);
        $pdf->setImageScale($config['image_scale']);

        $pdf->setHeaderFont(array(PDF_FONT_NAME_MAIN, '', PDF_FONT_SIZE_MAIN));
        $pdf->setFooterFont(array(PDF_FONT_NAME_DATA, '', PDF_FONT_SIZE_DATA));
        $pdf->SetDefaultMonospacedFont(PDF_FONT_MONOSPACED);
        $pdf->SetHeaderMargin(PDF_MARGIN_HEADER);
        $pdf->SetFooterMargin(PDF_MARGIN_FOOTER);
        $pdf->SetFont('dejavusans', '', 10);
        $pdf->setSpacesRE('/[^\S\xa0]/'); // Fixing unicode/PCRE-mess #17547

        foreach ($job->getPages() as $page) {
            $page = ' ' . $page;
            $pdf->AddPage();
            $pdf->writeHTML($page, true, false, true, false, '');
        }
        $result = $pdf->Output($job->getFilename(), $job->getOutputMode()); // (I - Inline, D - Download, F - File)

        if (in_array($job->getOutputMode(), array('I', 'D'))) {
            exit();
        }
    }
}