protected static function toBitArray($string)
{
$result = new BitArray();
for ($i = 0; $i < strlen($string); $i++) {
if ($string[$i] == 'X') {
$result->append(1);
} elseif ($string[$i] == '.') {
$result->append(0);
}
}
return $result;
}
public function encode($data)
{
$result = new BitArray();
while (strlen($data) >= 32) {
$chunkLength = min(strlen($data), 2048 + 32 - 1);
$result->append(self::CODE_UPPER_BS, 5);
$result->append(0, 5);
$result->append($chunkLength - 32, 11);
$result->appendBytes(substr($data, 0, $chunkLength));
$data = substr($data, $chunkLength);
}
if (strlen($data) > 0) {
$result->append(self::CODE_UPPER_BS, 5);
$result->append(strlen($data), 5);
$result->appendBytes($data);
}
return $result;
}
public function appendTo(BitArray $bitArray, array $text)
{
for ($i = 0; $i < $this->shiftByteCount; $i++) {
if ($i == 0 || $i == 31 && $this->shiftByteCount <= 62) {
$bitArray->append(31, 5);
if ($this->shiftByteCount > 62) {
$bitArray->append($this->shiftByteCount - 31, 16);
} elseif ($i == 0) {
$bitArray->append(min($this->shiftByteCount, 31), 5);
} else {
$bitArray->append($this->shiftByteCount - 31, 5);
}
}
$bitArray->append(ord($text[$this->shiftStart + $i]), 8);
}
return $bitArray;
}
private static function drawModeMessage(BitMatrix $matrix, $compact, $matrixSize, BitArray $modeMessage)
{
$center = intval($matrixSize / 2);
if ($compact) {
for ($i = 0; $i < 7; $i++) {
if ($modeMessage->get($i)) {
$matrix->set($center - 3 + $i, $center - 5);
}
if ($modeMessage->get($i + 7)) {
$matrix->set($center + 5, $center - 3 + $i);
}
if ($modeMessage->get(20 - $i)) {
$matrix->set($center - 3 + $i, $center + 5);
}
if ($modeMessage->get(27 - $i)) {
$matrix->set($center - 5, $center - 3 + $i);
}
}
} else {
for ($i = 0; $i < 10; $i++) {
if ($modeMessage->get($i)) {
$matrix->set($center - 5 + $i + intval($i / 5), $center - 7);
}
if ($modeMessage->get($i + 10)) {
$matrix->set($center + 7, $center - 5 + $i + intval($i / 5));
}
if ($modeMessage->get(29 - $i)) {
$matrix->set($center - 5 + $i + intval($i / 5), $center + 7);
}
if ($modeMessage->get(39 - $i)) {
$matrix->set($center - 7, $center - 5 + $i + intval($i / 5));
}
}
}
return $matrix;
}
public function testAppendBytes()
{
$array = new BitArray(2);
$array->appendBytes('AB');
$this->assertEquals(array(0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 1, 0), $array->asArray());
}
public function appendTo(BitArray $bitArray, array $text)
{
$bitArray->append($this->value, $this->bitCount);
return $bitArray;
}