public function testMakeVersionInfoBits()
{
// From Appendix D in JISX0510:2004 (p 68)
$bits = new BitArray();
$this->methods['makeVersionInfoBits']->invoke(null, Version::getVersionForNumber(7), $bits);
$this->assertEquals(' ...XXXXX ..X..X.X ..', $bits->__toString());
}
/**
* @dataProvider decodeInformationProvider
* @param integer $expectedVersion
* @param integer $mask
*/
public function testDecodeVersionInformation($expectedVersion, $mask)
{
$version = Version::decodeVersionInformation($mask);
$this->assertNotNull($version);
$this->assertEquals($expectedVersion, $version->getVersionNumber());
}
/**
* Chooses the best version for the input.
*
* @param integer $numInputBits
* @param ErrorCorrectionLevel $ecLevel
* @return Version
* @throws Exception\WriterException
*/
protected static function chooseVersion($numInputBits, ErrorCorrectionLevel $ecLevel)
{
for ($versionNum = 1; $versionNum <= 40; $versionNum++) {
$version = Version::getVersionForNumber($versionNum);
$numBytes = $version->getTotalCodewords();
$ecBlocks = $version->getEcBlocksForLevel($ecLevel);
$numEcBytes = $ecBlocks->getTotalEcCodewords();
$numDataBytes = $numBytes - $numEcBytes;
$totalInputBytes = intval(($numInputBits + 8) / 8);
if ($numDataBytes >= $totalInputBytes) {
return $version;
}
}
throw new Exception\WriterException('Data too big');
}
/**
* Embeds position adjustment patterns if required.
*
* @param Version $version
* @param ByteMatrix $matrix
* @return void
*/
protected static function maybeEmbedPositionAdjustmentPatterns(Version $version, ByteMatrix $matrix)
{
if ($version->getVersionNumber() < 2) {
return;
}
$index = $version->getVersionNumber() - 1;
$coordinates = self::$positionAdjustmentPatternCoordinateTable[$index];
$numCoordinates = count($coordinates);
for ($i = 0; $i < $numCoordinates; $i++) {
for ($j = 0; $j < $numCoordinates; $j++) {
$y = $coordinates[$i];
$x = $coordinates[$j];
if ($x === null || $y === null) {
continue;
}
if ($matrix->get($x, $y) === -1) {
self::embedPositionAdjustmentPattern($x - 2, $y - 2, $matrix);
}
}
}
}
