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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\Renderer\Text;
use BaconQrCode\Exception;
use BaconQrCode\Encoder\QrCode;
use BaconQrCode\Renderer\RendererInterface;
/**
* Plaintext renderer.
*/
class Plain implements RendererInterface
{
/**
* Margin around the QR code, also known as quiet zone.
*
* @var integer
*/
protected $margin = 1;
/**
* Char used for full block.
*
* UTF-8 FULL BLOCK (U+2588)
*
* @var string
* @link http://www.fileformat.info/info/unicode/char/2588/index.htm
*/
protected $fullBlock = "\xE2\x96\x88";
/**
* Char used for empty space
*
* @var string
*/
protected $emptyBlock = ' ';
/**
* Set char used as full block (occupied space, "black").
*
* @param string $fullBlock
*/
public function setFullBlock($fullBlock)
{
$this->fullBlock = $fullBlock;
}
/**
* Get char used as full block (occupied space, "black").
*
* @return string
*/
public function getFullBlock()
{
return $this->fullBlock;
}
/**
* Set char used as empty block (empty space, "white").
*
* @param string $emptyBlock
*/
public function setEmptyBlock($emptyBlock)
{
$this->emptyBlock = $emptyBlock;
}
/**
* Get char used as empty block (empty space, "white").
*
* @return string
*/
public function getEmptyBlock()
{
return $this->emptyBlock;
}
/**
* Sets the margin around the QR code.
*
* @param integer $margin
* @return AbstractRenderer
* @throws Exception\InvalidArgumentException
*/
public function setMargin($margin)
{
if ($margin < 0) {
throw new Exception\InvalidArgumentException('Margin must be equal to greater than 0');
}
$this->margin = (int) $margin;
return $this;
}
/**
* Gets the margin around the QR code.
*
* @return integer
*/
public function getMargin()
{
return $this->margin;
}
/**
* render(): defined by RendererInterface.
*
* @see RendererInterface::render()
* @param QrCode $qrCode
* @return string
*/
public function render(QrCode $qrCode)
{
$result = '';
$matrix = $qrCode->getMatrix();
$width = $matrix->getWidth();
// Top margin
for ($x = 0; $x < $this->margin; $x++) {
$result .= str_repeat($this->emptyBlock, $width + 2 * $this->margin)."\n";
}
// Body
$array = $matrix->getArray();
foreach ($array as $row) {
$result .= str_repeat($this->emptyBlock, $this->margin); // left margin
foreach ($row as $byte) {
$result .= $byte ? $this->fullBlock : $this->emptyBlock;
}
$result .= str_repeat($this->emptyBlock, $this->margin); // right margin
$result .= "\n";
}
// Bottom margin
for ($x = 0; $x < $this->margin; $x++) {
$result .= str_repeat($this->emptyBlock, $width + 2 * $this->margin)."\n";
}
return $result;
}
}
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