editimage_form.php

<?php
// This file is part of 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/>.

/**
 * Grid Format - A topics based format that uses a grid of user selectable images to popup a light box of the section.
 *
 * @package    course/format
 * @subpackage grid
 * @version    See the value of '$plugin->version' in version.php.
 * @copyright  &copy; 2012 G J Barnard in respect to modifications of standard topics format.
 * @author     G J Barnard - {@link http://about.me/gjbarnard} and
 *                           {@link http://moodle.org/user/profile.php?id=442195}
 * @author     Based on code originally written by Paul Krix and Julian Ridden.
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
defined('MOODLE_INTERNAL') || die();
global $CFG;
require_once("{$CFG->libdir}/formslib.php");

class grid_image_form extends moodleform {

    public function definition() {
        $mform = $this->_form;
        $instance = $this->_customdata;

        // Visible elements.
        $mform->addElement('filepicker', 'imagefile', get_string('imagefile', 'format_grid'), null, $instance['options']);
        $mform->addHelpButton('imagefile', 'imagefile', 'format_grid');
        $mform->addElement('selectyesno', 'deleteimage', get_string('deleteimage', 'format_grid'));
        $mform->addHelpButton('deleteimage', 'deleteimage', 'format_grid');

        // Hidden params.
        $mform->addElement('hidden', 'contextid', $instance['contextid']);
        $mform->setType('contextid', PARAM_INT);
        $mform->addElement('hidden', 'userid', $instance['userid']);
        $mform->setType('userid', PARAM_INT);
        $mform->addElement('hidden', 'sectionid', $instance['sectionid']);
        $mform->setType('sectionid', PARAM_INT);
        $mform->addElement('hidden', 'action', 'uploadfile');
        $mform->setType('action', PARAM_ALPHA);

        // Buttons:...
        $this->add_action_buttons(true, get_string('savechanges', 'admin'));
    }

}