public static function getInstance()
{
if (!isset(self::$iInstance)) {
$c = __CLASS__;
self::$iInstance = new $c();
}
return self::$iInstance;
}
function Tst13Pattern()
{
$mask = QRMask::getInstance();
$mask->_setDbgLevel(2);
$n = 11;
$m = array();
for ($i = 0; $i < $n; ++$i) {
$m[$i] = array_fill(0, $n, QRMatrixLayout::ZERO);
}
$pattern = array(QRMatrixLayout::ONE, QRMatrixLayout::ZERO, QRMatrixLayout::ONE, QRMatrixLayout::ONE, QRMatrixLayout::ONE, QRMatrixLayout::ZERO, QRMatrixLayout::ZERO, QRMatrixLayout::ONE);
for ($j = 0; $j < count($pattern); ++$j) {
$m[$j + 2][1] = $pattern[$j];
}
$val = $mask->_eval11311Pattern($m, $n, false);
echo $this->fmtInfo("Result: \n" . $mask . "\n");
}
function selectApplyMask()
{
$mask = QRMask::getInstance();
// For special purposes (mainly verification) we can override the automatic
// selection of a mask pattern and force the mask to to be a selected one by
// storing that index in iForcedMaskIdx instance variable
if ($this->iForcedMaskIdx >= 0) {
$maskidx = $this->iForcedMaskIdx;
$this->_dbgInfo(1, " Selected FORCED Mask {$maskidx} \n");
} else {
$maskidx = -1;
// Try all 8 masks on the matrix in turn and select the one which
// gives the lowest penalty score when the mask is evaluted
$score = array();
$minscore = 100000;
// Dummy inital value
$this->_dbgInfo(2, "Evaluating different layout matrix masks \n");
$this->_dbgInfo(2, "------------------------------------------\n");
for ($i = 0; $i < 8; ++$i) {
// We must use a temp variable since applyMaskAndEval is call by reference
// and will destroy the parameter
$tmp = $this->iMatrix;
$mask->applyMask($tmp, $i);
$this->addFormatInfo($tmp, $i);
$score = $mask->evaluate($tmp, $i);
$this->_dbgInfo(2, "Evaluated mask nr {$i} score={$score} \n");
if ($score < $minscore) {
$minscore = $score;
$maskidx = $i;
}
}
$this->_dbgInfo(2, "SELECTED Mask {$maskidx}, score = {$minscore} \n");
}
$mask->applyMask($this->iMatrix, $maskidx);
$this->addFormatInfo($this->iMatrix, $maskidx);
$this->iMaskIdx = $maskidx;
return $maskidx;
}
function __construct($aVersion = -1, $aErrLevel = QRCapacity::ErrM)
{
$this->SetSize($aVersion);
// If error level is set < 0 this is interpretated as that the user
// wants us to choose the level of error redundancy.
if ($aErrLevel < 0) {
if ($aVersion > 30) {
$aErrLevel = QRCapacity::ErrH;
// Use more error redundancy for large data
$this->iGeneralInfo .= "Automatically set error level to H\n";
} elseif ($aVersion > 20) {
$aErrLevel = QRCapacity::ErrQ;
// Use more error redundancy for large data
$this->iGeneralInfo .= "Automatically set error level to Q\n";
} else {
$aErrLevel = QRCapacity::ErrM;
$this->iGeneralInfo .= "Automatically set error level to M\n";
}
}
$this->iErrLevel = $aErrLevel;
// Initialize translation table for alphanumeric
for ($i = 0; $i < 10; ++$i) {
$this->iAlphaNumTable[ord('0') + $i] = $i;
}
for ($i = 0; $i < 26; ++$i) {
$this->iAlphaNumTable[ord('A') + $i] = 10 + $i;
}
$punct = array(ord(' ') => 36, ord('$') => 37, ord('%') => 38, ord('*') => 39, ord('+') => 40, ord('-') => 41, ord('.') => 42, ord('/') => 43, ord(':') => 44);
$this->iAlphaNumTable = $this->iAlphaNumTable + $punct;
foreach ($this->iAlphaNumTable as $key => $val) {
$this->iAlphaNumInvTable[$val] = $key;
}
$this->iQRCapacity = QRCapacity::getInstance();
$this->iQRMask = QRMask::getInstance();
}
