$ury = $upperright->y;
$llx = $lowerleft->x;
$lly = $lowerleft->y;
$lrx = $lowerright->x;
$lry = $lowerright->y;
$scannedpage->status = 'ok';
$scannedpage->error = '';
$scannedpage->listnumber = 0;
$offlinequizconfig->papergray = $offlinequiz->papergray;
if ($newfile = $scanner->rotate_180()) {
$scannedpage->filename = $newfile->get_filename();
$DB->update_record('offlinequiz_scanned_p_pages', $scannedpage);
// Create a completely new scanner.
$scanner = new offlinequiz_participants_scanner($offlinequiz, $context->id, 0, 0);
// Load the stored picture file.
$sheetloaded = $scanner->load_stored_image($scannedpage->filename, array($upperleft, $upperright, $lowerleft, $lowerright));
// The following calibrates the scanner.
$scanner->get_list();
$participants = $scanner->get_participants();
}
} else {
if ($action == 'setpage') {
if (!confirm_sesskey()) {
print_error('invalidsesskey');
echo "<input class=\"imagebutton\" type=\"submit\" value=\"" . get_string('cancel') . "\" name=\"submitbutton4\"\nonClick=\"self.close(); return false;\"><br />";
die;
}
$listid = required_param('listid', PARAM_INT);
if (!$listid) {
$listnumber = $scannedpage->listnumber;
} else {
/**
* Checks groupnumber, userkey, and pagenumber of a scanned list of participants page
*
* @param unknown_type $offlinequiz
* @param offlinequiz_page_scanner $scanner
* @param unknown_type $scannedpage
* @param unknown_type $teacherid
* @param unknown_type $coursecontext
*/
function offlinequiz_check_scanned_participants_page($offlinequiz, offlinequiz_participants_scanner $scanner, $scannedpage, $teacherid, $coursecontext, $autorotate = false)
{
global $DB;
// Check the list number.
if (!property_exists($scannedpage, 'listnumber') || $scannedpage->listnumber == 0) {
$listnumber = $scanner->get_list();
if (is_string($listnumber)) {
$intln = intval($listnumber);
if ($intln > 0) {
$listnumber = $intln;
$scannedpage->listnumber = $listnumber;
}
}
}
if ($scannedpage->status == 'ok') {
$maxlistnumber = $DB->get_field_sql("\n SELECT MAX(number)\n FROM {offlinequiz_p_lists}\n WHERE offlinequizid = :offlinequizid", array('offlinequizid' => $offlinequiz->id));
if (!property_exists($scannedpage, 'listnumber') || !is_int($scannedpage->listnumber) || $scannedpage->listnumber < 1 || $scannedpage->listnumber > $maxlistnumber) {
$scannedpage->status = 'error';
$scannedpage->error = 'invalidlistnumber';
}
}
if ($scannedpage->status == 'error' && $scanner->ontop && $autorotate) {
print_string('rotatingsheet', 'offlinequiz');
$oldfilename = $scannedpage->filename;
$corners = $scanner->get_corners();
if ($newfile = $scanner->rotate_180()) {
$scannedpage->status = 'ok';
$scannedpage->error = '';
$scannedpage->userkey = null;
$scannedpage->pagenumber = null;
$scannedpage->groupnumber = null;
$scannedpage->filename = $newfile->get_filename();
$corners = $scanner->get_corners();
$newcorners = array();
$newcorners[0] = new oq_point(853 - $corners[3]->x, 1208 - $corners[3]->y);
$newcorners[1] = new oq_point(853 - $corners[2]->x, 1208 - $corners[2]->y);
$newcorners[2] = new oq_point(853 - $corners[1]->x, 1208 - $corners[1]->y);
$newcorners[3] = new oq_point(853 - $corners[0]->x, 1208 - $corners[0]->y);
// Create a completely new scanner.
$scanner = new offlinequiz_participants_scanner($offlinequiz, $scanner->contextid, 0, 0);
$sheetloaded = $scanner->load_stored_image($scannedpage->filename, $newcorners);
if (!$sheetloaded) {
$scannedpage->status = 'error';
$scannedpage->error = 'fatalerror';
} else {
$scannedpage->status = 'ok';
$scannedpage->error = '';
$listnumber = $scanner->get_list();
if (is_string($listnumber)) {
$intln = intval($listnumber);
if ($intln > 0) {
$listnumber = $intln;
}
}
$scannedpage->listnumber = $listnumber;
$maxlistnumber = $DB->get_field_sql("SELECT MAX(number)\n FROM {offlinequiz_p_lists}\n WHERE offlinequizid = :offlinequizid", array('offlinequizid' => $offlinequiz->id));
if (!is_int($scannedpage->listnumber) || $scannedpage->listnumber < 1 || $scannedpage->listnumber > $maxlistnumber) {
$scannedpage->status = 'error';
$scannedpage->error = 'invalidlistnumber';
}
}
}
}
$scannedpage->time = time();
if (property_exists($scannedpage, 'id') && !empty($scannedpage->id)) {
$DB->update_record('offlinequiz_scanned_p_pages', $scannedpage);
} else {
$scannedpage->id = $DB->insert_record('offlinequiz_scanned_p_pages', $scannedpage);
}
if ($autorotate) {
return array($scanner, $scannedpage);
} else {
return $scannedpage;
}
}
