public function validation($data, $files)
{
$errors = parent::validation($data, $files);
$bgimagesize = $this->get_image_size_in_draft_area($data['bgimage']);
if ($bgimagesize === null) {
$errors["bgimage"] = get_string('formerror_nobgimage', 'qtype_ddmarker');
}
$allchoices = array();
for ($i = 0; $i < $data['nodropzone']; $i++) {
$choice = $data['drops'][$i]['choice'];
$choicepresent = $choice !== '0';
if ($choicepresent) {
//test coords here
if ($bgimagesize !== null) {
$shape = $data['drops'][$i]['shape'];
$coordsstring = $data['drops'][$i]['coords'];
$shapeobj = qtype_ddmarker_shape::create($shape, $coordsstring);
$interpretererror = $shapeobj->get_coords_interpreter_error();
if ($interpretererror !== false) {
$errors["drops[{$i}]"] = $interpretererror;
} else {
if (!$shapeobj->inside_width_height($bgimagesize)) {
$errorcode = 'shapeoutsideboundsofbgimage';
$errors["drops[{$i}]"] = get_string('formerror_' . $errorcode, 'qtype_ddmarker');
}
}
}
} else {
if (trim($data['drops'][$i]['coords']) !== '') {
$errorcode = 'noitemselected';
$errors["drops[{$i}]"] = get_string('formerror_' . $errorcode, 'qtype_ddmarker');
}
}
}
for ($dragindex = 0; $dragindex < $data['noitems']; $dragindex++) {
$label = $data['drags'][$dragindex]['label'];
if ($label != strip_tags($label, QTYPE_DDMARKER_ALLOWED_TAGS_IN_MARKER)) {
$errors["drags[{$dragindex}]"] = get_string('formerror_onlysometagsallowed', 'qtype_ddmarker', QTYPE_DDMARKER_ALLOWED_TAGS_IN_MARKER);
}
}
return $errors;
}
/**
* Setup a drop zone object.
*
* @param int $no Which number drop zone this is
* @param int $shape Shape of the drop zone
* @param array $coords Coordinates of the zone
*/
public function __construct($no, $shape, $coords) {
$this->no = $no;
$this->shape = qtype_ddmarker_shape::create($shape, $coords);
$this->coords = $coords;
}
