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<?php
declare(strict_types = 1);
namespace BaconQrCode\Common;
use DASPRiD\Enum\AbstractEnum;
/**
* Enum representing various modes in which data can be encoded to bits.
*
* @method static self TERMINATOR()
* @method static self NUMERIC()
* @method static self ALPHANUMERIC()
* @method static self STRUCTURED_APPEND()
* @method static self BYTE()
* @method static self ECI()
* @method static self KANJI()
* @method static self FNC1_FIRST_POSITION()
* @method static self FNC1_SECOND_POSITION()
* @method static self HANZI()
*/
final class Mode extends AbstractEnum
{
protected const TERMINATOR = [[0, 0, 0], 0x00];
protected const NUMERIC = [[10, 12, 14], 0x01];
protected const ALPHANUMERIC = [[9, 11, 13], 0x02];
protected const STRUCTURED_APPEND = [[0, 0, 0], 0x03];
protected const BYTE = [[8, 16, 16], 0x04];
protected const ECI = [[0, 0, 0], 0x07];
protected const KANJI = [[8, 10, 12], 0x08];
protected const FNC1_FIRST_POSITION = [[0, 0, 0], 0x05];
protected const FNC1_SECOND_POSITION = [[0, 0, 0], 0x09];
protected const HANZI = [[8, 10, 12], 0x0d];
/**
* @var int[]
*/
private $characterCountBitsForVersions;
/**
* @var int
*/
private $bits;
/**
* @param int[] $characterCountBitsForVersions
*/
protected function __construct(array $characterCountBitsForVersions, int $bits)
{
$this->characterCountBitsForVersions = $characterCountBitsForVersions;
$this->bits = $bits;
}
/**
* Returns the number of bits used in a specific QR code version.
*/
public function getCharacterCountBits(Version $version) : int
{
$number = $version->getVersionNumber();
if ($number <= 9) {
$offset = 0;
} elseif ($number <= 26) {
$offset = 1;
} else {
$offset = 2;
}
return $this->characterCountBitsForVersions[$offset];
}
/**
* Returns the four bits used to encode this mode.
*/
public function getBits() : int
{
return $this->bits;
}
}
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