public function __construct(wechat_qrcode_QRinput $input)
{
$spec = array(0, 0, 0, 0, 0);
$this->datacode = $input->getByteStream();
if (is_null($this->datacode)) {
throw new Exception('null imput string');
}
wechat_qrcode_QRspec::getEccSpec($input->getVersion(), $input->getErrorCorrectionLevel(), $spec);
$this->version = $input->getVersion();
$this->b1 = wechat_qrcode_QRspec::rsBlockNum1($spec);
$this->dataLength = wechat_qrcode_QRspec::rsDataLength($spec);
$this->eccLength = wechat_qrcode_QRspec::rsEccLength($spec);
$this->ecccode = array_fill(0, $this->eccLength, 0);
$this->blocks = wechat_qrcode_QRspec::rsBlockNum($spec);
$ret = $this->init($spec);
if ($ret < 0) {
throw new Exception('block alloc error');
return null;
}
$this->count = 0;
}
public function encodeString8bit($string, $version, $level)
{
if (string == NULL) {
throw new Exception('empty string!');
return NULL;
}
$input = new wechat_qrcode_QRinput($version, $level);
if ($input == NULL) {
return NULL;
}
$ret = $input->append($input, QR_MODE_8, strlen($string), str_split($string));
if ($ret < 0) {
unset($input);
return NULL;
}
return $this->encodeInput($input);
}
public function eat8()
{
$la = wechat_qrcode_QRspec::lengthIndicator(QR_MODE_AN, $this->input->getVersion());
$ln = wechat_qrcode_QRspec::lengthIndicator(QR_MODE_NUM, $this->input->getVersion());
$p = 1;
$dataStrLen = strlen($this->dataStr);
while ($p < $dataStrLen) {
$mode = $this->identifyMode($p);
if ($mode == QR_MODE_KANJI) {
break;
}
if ($mode == QR_MODE_NUM) {
$q = $p;
while (self::isdigitat($this->dataStr, $q)) {
$q++;
}
$dif = wechat_qrcode_QRinput::estimateBitsMode8($p) + wechat_qrcode_QRinput::estimateBitsModeNum($q - $p) + 4 + $ln - wechat_qrcode_QRinput::estimateBitsMode8($q);
// - 4 - l8
if ($dif < 0) {
break;
} else {
$p = $q;
}
} else {
if ($mode == QR_MODE_AN) {
$q = $p;
while (self::isalnumat($this->dataStr, $q)) {
$q++;
}
$dif = wechat_qrcode_QRinput::estimateBitsMode8($p) + wechat_qrcode_QRinput::estimateBitsModeAn($q - $p) + 4 + $la - wechat_qrcode_QRinput::estimateBitsMode8($q);
// - 4 - l8
if ($dif < 0) {
break;
} else {
$p = $q;
}
} else {
$p++;
}
}
}
$run = $p;
$ret = $this->input->append(QR_MODE_8, $run, str_split($this->dataStr));
if ($ret < 0) {
return -1;
}
return $run;
}
public function estimateBitStreamSizeOfEntry($version)
{
$bits = 0;
if ($version == 0) {
$version = 1;
}
switch ($this->mode) {
case QR_MODE_NUM:
$bits = wechat_qrcode_QRinput::estimateBitsModeNum($this->size);
break;
case QR_MODE_AN:
$bits = wechat_qrcode_QRinput::estimateBitsModeAn($this->size);
break;
case QR_MODE_8:
$bits = wechat_qrcode_QRinput::estimateBitsMode8($this->size);
break;
case QR_MODE_KANJI:
$bits = wechat_qrcode_QRinput::estimateBitsModeKanji($this->size);
break;
case QR_MODE_STRUCTURE:
return STRUCTURE_HEADER_BITS;
default:
return 0;
}
$l = wechat_qrcode_QRspec::lengthIndicator($this->mode, $version);
$m = 1 << $l;
$num = (int) (($this->size + $m - 1) / $m);
$bits += $num * (4 + $l);
return $bits;
}