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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;
use SplFixedArray;
/**
* Encapsulates a set of error-correction blocks in one symbol version. Most
* versions will use blocks of differing sizes within one version, so, this
* encapsulates the parameters for each set of blocks. It also holds the number
* of error-correction codewords per block since it will be the same across all
* blocks within one version.
*/
class EcBlocks
{
/**
* Number of EC codewords per block.
*
* @var integer
*/
protected $ecCodewordsPerBlock;
/**
* List of EC blocks.
*
* @var SplFixedArray
*/
protected $ecBlocks;
/**
* Creates a new EC blocks instance.
*
* @param integer $ecCodewordsPerBlock
* @param EcBlock $ecb1
* @param EcBlock|null $ecb2
*/
public function __construct($ecCodewordsPerBlock, EcBlock $ecb1, EcBlock $ecb2 = null)
{
$this->ecCodewordsPerBlock = $ecCodewordsPerBlock;
$this->ecBlocks = new SplFixedArray($ecb2 === null ? 1 : 2);
$this->ecBlocks[0] = $ecb1;
if ($ecb2 !== null) {
$this->ecBlocks[1] = $ecb2;
}
}
/**
* Gets the number of EC codewords per block.
*
* @return integer
*/
public function getEcCodewordsPerBlock()
{
return $this->ecCodewordsPerBlock;
}
/**
* Gets the total number of EC block appearances.
*
* @return integer
*/
public function getNumBlocks()
{
$total = 0;
foreach ($this->ecBlocks as $ecBlock) {
$total += $ecBlock->getCount();
}
return $total;
}
/**
* Gets the total count of EC codewords.
*
* @return integer
*/
public function getTotalEcCodewords()
{
return $this->ecCodewordsPerBlock * $this->getNumBlocks();
}
/**
* Gets the EC blocks included in this collection.
*
* @return SplFixedArray
*/
public function getEcBlocks()
{
return $this->ecBlocks;
}
}