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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;
use BaconQrCode\Renderer\Color\ColorInterface;
use BaconQrCode\Renderer\Color\Rgb;
use BaconQrCode\Renderer\Color\Cmyk;
use BaconQrCode\Renderer\Color\Gray;
/**
* EPS backend.
*/
class Eps extends AbstractRenderer
{
/**
* EPS string.
*
* @var string
*/
protected $eps;
/**
* Colors used for drawing.
*
* @var array
*/
protected $colors = array();
/**
* Current color.
*
* @var string
*/
protected $currentColor;
/**
* init(): defined by RendererInterface.
*
* @see ImageRendererInterface::init()
* @return void
*/
public function init()
{
$this->eps = "%!PS-Adobe-3.0 EPSF-3.0\n"
. "%%BoundingBox: 0 0 " . $this->finalWidth . " " . $this->finalHeight . "\n"
. "/F { rectfill } def\n";
}
/**
* addColor(): defined by RendererInterface.
*
* @see ImageRendererInterface::addColor()
* @param string $id
* @param ColorInterface $color
* @return void
*/
public function addColor($id, ColorInterface $color)
{
if (
!$color instanceof Rgb
&& !$color instanceof Cmyk
&& !$color instanceof Gray
) {
$color = $color->toCmyk();
}
$this->colors[$id] = $color;
}
/**
* drawBackground(): defined by RendererInterface.
*
* @see ImageRendererInterface::drawBackground()
* @param string $colorId
* @return void
*/
public function drawBackground($colorId)
{
$this->setColor($colorId);
$this->eps .= "0 0 " . $this->finalWidth . " " . $this->finalHeight . " F\n";
}
/**
* drawBlock(): defined by RendererInterface.
*
* @see ImageRendererInterface::drawBlock()
* @param integer $x
* @param integer $y
* @param string $colorId
* @return void
*/
public function drawBlock($x, $y, $colorId)
{
$this->setColor($colorId);
$this->eps .= $x . " " . ($this->finalHeight - $y - $this->blockSize) . " " . $this->blockSize . " " . $this->blockSize . " F\n";
}
/**
* getByteStream(): defined by RendererInterface.
*
* @see ImageRendererInterface::getByteStream()
* @return string
*/
public function getByteStream()
{
return $this->eps;
}
/**
* Sets color to use.
*
* @param string $colorId
* @return void
*/
protected function setColor($colorId)
{
if ($colorId !== $this->currentColor) {
$color = $this->colors[$colorId];
if ($color instanceof Rgb) {
$this->eps .= sprintf(
"%F %F %F setrgbcolor\n",
$color->getRed() / 100,
$color->getGreen() / 100,
$color->getBlue() / 100
);
} elseif ($color instanceof Cmyk) {
$this->eps .= sprintf(
"%F %F %F %F setcmykcolor\n",
$color->getCyan() / 100,
$color->getMagenta() / 100,
$color->getYellow() / 100,
$color->getBlack() / 100
);
} elseif ($color instanceof Gray) {
$this->eps .= sprintf(
"%F setgray\n",
$color->getGray() / 100
);
}
$this->currentColor = $colorId;
}
}
}