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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\Image\Decorator;
use BaconQrCode\Encoder\QrCode;
use BaconQrCode\Renderer\Image\RendererInterface;
use BaconQrCode\Renderer\Color;
/**
* Finder pattern decorator.
*/
class FinderPattern implements DecoratorInterface
{
/**
* @var Color\ColorInterface
*/
protected $innerColor;
/**
* @varColor\ColorInterface
*/
protected $outerColor;
/**
* Outer position detection pattern.
*
* @var array
*/
protected static $outerPositionDetectionPattern = array(
array(1, 1, 1, 1, 1, 1, 1),
array(1, 0, 0, 0, 0, 0, 1),
array(1, 0, 0, 0, 0, 0, 1),
array(1, 0, 0, 0, 0, 0, 1),
array(1, 0, 0, 0, 0, 0, 1),
array(1, 0, 0, 0, 0, 0, 1),
array(1, 1, 1, 1, 1, 1, 1),
);
/**
* Inner position detection pattern.
*
* @var array
*/
protected static $innerPositionDetectionPattern = array(
array(0, 0, 0, 0, 0, 0, 0),
array(0, 0, 0, 0, 0, 0, 0),
array(0, 0, 1, 1, 1, 0, 0),
array(0, 0, 1, 1, 1, 0, 0),
array(0, 0, 1, 1, 1, 0, 0),
array(0, 0, 0, 0, 0, 0, 0),
array(0, 0, 0, 0, 0, 0, 0),
);
/**
* Sets outer color.
*
* @param Color\ColorInterface $color
* @return FinderPattern
*/
public function setOuterColor(Color\ColorInterface $color)
{
$this->outerColor = $color;
return $this;
}
/**
* Gets outer color.
*
* @return Color\ColorInterface
*/
public function getOuterColor()
{
if ($this->outerColor === null) {
$this->outerColor = new Color\Gray(100);
}
return $this->outerColor;
}
/**
* Sets inner color.
*
* @param Color\ColorInterface $color
* @return FinderPattern
*/
public function setInnerColor(Color\ColorInterface $color)
{
$this->innerColor = $color;
return $this;
}
/**
* Gets inner color.
*
* @return Color\ColorInterface
*/
public function getInnerColor()
{
if ($this->innerColor === null) {
$this->innerColor = new Color\Gray(0);
}
return $this->innerColor;
}
/**
* preProcess(): defined by DecoratorInterface.
*
* @see DecoratorInterface::preProcess()
* @param QrCode $qrCode
* @param RendererInterface $renderer
* @param integer $outputWidth
* @param integer $outputHeight
* @param integer $leftPadding
* @param integer $topPadding
* @param integer $multiple
* @return void
*/
public function preProcess(
QrCode $qrCode,
RendererInterface $renderer,
$outputWidth,
$outputHeight,
$leftPadding,
$topPadding,
$multiple
) {
$matrix = $qrCode->getMatrix();
$positions = array(
array(0, 0),
array($matrix->getWidth() - 7, 0),
array(0, $matrix->getHeight() - 7),
);
foreach (self::$outerPositionDetectionPattern as $y => $row) {
foreach ($row as $x => $isSet) {
foreach ($positions as $position) {
$matrix->set($x + $position[0], $y + $position[1], 0);
}
}
}
}
/**
* postProcess(): defined by DecoratorInterface.
*
* @see DecoratorInterface::postProcess()
*
* @param QrCode $qrCode
* @param RendererInterface $renderer
* @param integer $outputWidth
* @param integer $outputHeight
* @param integer $leftPadding
* @param integer $topPadding
* @param integer $multiple
* @return void
*/
public function postProcess(
QrCode $qrCode,
RendererInterface $renderer,
$outputWidth,
$outputHeight,
$leftPadding,
$topPadding,
$multiple
) {
$matrix = $qrCode->getMatrix();
$positions = array(
array(0, 0),
array($matrix->getWidth() - 7, 0),
array(0, $matrix->getHeight() - 7),
);
$renderer->addColor('finder-outer', $this->getOuterColor());
$renderer->addColor('finder-inner', $this->getInnerColor());
foreach (self::$outerPositionDetectionPattern as $y => $row) {
foreach ($row as $x => $isOuterSet) {
$isInnerSet = self::$innerPositionDetectionPattern[$y][$x];
if ($isOuterSet) {
foreach ($positions as $position) {
$renderer->drawBlock(
$leftPadding + $x * $multiple + $position[0] * $multiple,
$topPadding + $y * $multiple + $position[1] * $multiple,
'finder-outer'
);
}
}
if ($isInnerSet) {
foreach ($positions as $position) {
$renderer->drawBlock(
$leftPadding + $x * $multiple + $position[0] * $multiple,
$topPadding + $y * $multiple + $position[1] * $multiple,
'finder-inner'
);
}
}
}
}
}
}