protected function execute(InputInterface $input, OutputInterface $output)
{
$lrPadding = $input->getOption('lr');
$tbPadding = $input->getOption('tb');
if ($input->getOption('stdin')) {
$text = '';
while ($line = fgets(STDIN)) {
$text .= $line;
}
} else {
$text = $input->getOption('text');
}
if (empty($text)) {
$output->getErrorOutput()->writeln('<error>Convert text cannot be empty</error>');
return;
}
$map = array(0 => '<whitec> </whitec>', 1 => '<blackc> </blackc>');
$this->initStyle($output);
$text = QRcode::text($text);
$length = strlen($text[0]);
$screenSize = $this->getTTYSize();
if (!$screenSize) {
$output->getErrorOutput()->writeln('<comment>Get Screen Size Failed</comment>');
} else {
list($maxLines, $maxCols) = $screenSize;
$qrCols = 2 * ($length + $lrPadding * 2);
$qrLines = count($text) + $tbPadding * 2;
if ($qrCols > $maxCols || $qrLines > $maxLines) {
$output->getErrorOutput()->writeln('<error>Max Lines/Columns Reached</error>');
return;
}
}
$paddingLine = str_repeat($map[0], $length + $lrPadding * 2) . "\n";
$after = $before = str_repeat($paddingLine, $tbPadding);
$output->write($before);
foreach ($text as $line) {
$output->write(str_repeat($map[0], $lrPadding));
for ($i = 0; $i < $length; $i++) {
$type = substr($line, $i, 1);
$output->write($map[$type]);
}
$output->writeln(str_repeat($map[0], $lrPadding));
}
$output->write($after);
}
/**
* Generate QR code
*
* @return void
*/
public function qrcodeTask()
{
$no_html = Request::getInt('no_html', 0);
$code = Request::getVar('code');
if (!$code) {
throw new Exception(Lang::txt('No code provided'), 500);
}
$url = rtrim(Request::base(), '/') . '/' . ltrim(Route::url('index.php?option=' . $this->_option . '&controller=courses&task=redeem&code=' . $code), '/');
if ($no_html) {
echo QRcode::png($url);
return;
}
echo QRcode::text($url);
}
