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<?php
/**
* BaconQrCode
*
* @link http://github.com/Bacon/BaconQrCode For the canonical source repository
* @copyright 2013 Ben 'DASPRiD' Scholzen
* @license http://opensource.org/licenses/BSD-2-Clause Simplified BSD License
*/
namespace BaconQrCode\Common;
/**
* Enum representing various modes in which data can be encoded to bits.
*/
class Mode extends AbstractEnum
{
/**#@+
* Mode constants.
*/
const TERMINATOR = 0x0;
const NUMERIC = 0x1;
const ALPHANUMERIC = 0x2;
const STRUCTURED_APPEND = 0x3;
const BYTE = 0x4;
const ECI = 0x7;
const KANJI = 0x8;
const FNC1_FIRST_POSITION = 0x5;
const FNC1_SECOND_POSITION = 0x9;
const HANZI = 0xd;
/**#@-*/
/**
* Character count bits for each version.
*
* @var array
*/
protected static $characterCountBitsForVersions = array(
self::TERMINATOR => array(0, 0, 0),
self::NUMERIC => array(10, 12, 14),
self::ALPHANUMERIC => array(9, 11, 13),
self::STRUCTURED_APPEND => array(0, 0, 0),
self::BYTE => array(8, 16, 16),
self::ECI => array(0, 0, 0),
self::KANJI => array(8, 10, 12),
self::FNC1_FIRST_POSITION => array(0, 0, 0),
self::FNC1_SECOND_POSITION => array(0, 0, 0),
self::HANZI => array(8, 10, 12),
);
/**
* Gets the number of bits used in a specific QR code version.
*
* @param Version $version
* @return integer
*/
public function getCharacterCountBits(Version $version)
{
$number = $version->getVersionNumber();
if ($number <= 9) {
$offset = 0;
} elseif ($number <= 26) {
$offset = 1;
} else {
$offset = 2;
}
return self::$characterCountBitsForVersions[$this->value][$offset];
}
}
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