moodle-mod_htmlcert/element/border/lib.php
Mark Nelson 9413d65ee0 Fixed issue when creating an image element
The images were not loading in the filemanager.
This meant that when the element was saved the
images would be deleted for that course, affecting
existing image elements as well.
2015-12-11 12:09:08 +08:00

114 lines
4.1 KiB
PHP

<?php
// This file is part of the customcert module for Moodle - http://moodle.org/
//
// Moodle 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 3 of the License, or
// (at your option) any later version.
//
// Moodle 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 Moodle. If not, see <http://www.gnu.org/licenses/>.
defined('MOODLE_INTERNAL') || die('Direct access to this script is forbidden.');
require_once($CFG->dirroot . '/mod/customcert/element/element.class.php');
/**
* The customcert element border's core interaction API.
*
* @package customcertelement_border
* @copyright 2013 Mark Nelson <markn@moodle.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class customcert_element_border extends customcert_element_base {
/**
* This function renders the form elements when adding a customcert element.
*
* @param mod_customcert_edit_element_form $mform the edit_form instance
*/
public function render_form_elements($mform) {
// We want to define the width of the border.
$mform->addElement('text', 'width', get_string('width', 'customcertelement_border'), array('size' => 10));
$mform->setType('width', PARAM_INT);
$mform->addHelpButton('width', 'width', 'customcertelement_border');
// The only other thing to define is the colour we want the border to be.
parent::render_form_element_colour($mform);
}
/**
* Handles rendering the element on the pdf.
*
* @param pdf $pdf the pdf object
* @param bool $preview true if it is a preview, false otherwise
*/
public function render($pdf, $preview) {
$colour = TCPDF_COLORS::convertHTMLColorToDec($this->element->colour, $colour);
$pdf->SetLineStyle(array('width' => $this->element->data, 'color' => $colour));
$pdf->Line(0, 0, $pdf->getPageWidth(), 0);
$pdf->Line($pdf->getPageWidth(), 0, $pdf->getPageWidth(), $pdf->getPageHeight());
$pdf->Line(0, $pdf->getPageHeight(), $pdf->getPageWidth(), $pdf->getPageHeight());
$pdf->Line(0, 0, 0, $pdf->getPageHeight());
}
/**
* Render the element in html.
*
* This function is used to render the element when we are using the
* drag and drop interface to position it.
*/
public function render_html() {
return '';
}
/**
* Performs validation on the element values.
*
* @param array $data the submitted data
* @param array $files the submitted files
* @return array the validation errors
*/
public function validate_form_elements($data, $files) {
// Array to return the errors.
$errors = array();
// Check if width is not set, or not numeric or less than 0.
if ((!isset($data['width'])) || (!is_numeric($data['width'])) || ($data['width'] <= 0)) {
$errors['width'] = get_string('invalidwidth', 'customcertelement_border');
}
// Validate the colour.
$errors += $this->validate_form_element_colour($data);
return $errors;
}
/**
* Sets the data on the form when editing an element.
*
* @param mod_customcert_edit_element_form $mform the edit_form instance
*/
public function definition_after_data($mform) {
if (!empty($this->element->data)) {
$this->element->width = $this->element->data;
}
parent::definition_after_data($mform);
}
/**
* This will handle how form data will be saved into the data column in the
* customcert_elements table.
*
* @param stdClass $data the form data
* @return string the json encoded array
*/
public function save_unique_data($data) {
return $data->width;
}
}