public function testRenderingStrings()
{
$f = new Ghostscript();
$dir = __DIR__ . DIRECTORY_SEPARATOR . 'support' . DIRECTORY_SEPARATOR;
$filename = $dir . 'test.pdf';
$path = Ghostscript::getGsPath();
$this->assertEquals('', $f->getRenderString());
$f->setInputFile($filename);
$expect = $path . ' -dSAFER -dQUIET -dNOPLATFONTS -dNOPAUSE -dBATCH -sOutputFile="' . $dir . 'output.png" -sDEVICE=pngalpha -r72 "' . $filename . '"';
$this->assertEquals($expect, $f->getRenderString());
$f->setTextAntiAliasing(Ghostscript::ANTIALIASING_HIGH);
$expect = $path . ' -dSAFER -dQUIET -dNOPLATFONTS -dNOPAUSE -dBATCH -sOutputFile="' . $dir . 'output.png" -sDEVICE=pngalpha -r72 -dTextAlphaBits=4 "' . $filename . '"';
$this->assertEquals($expect, $f->getRenderString());
$f->setGraphicsAntiAliasing(Ghostscript::ANTIALIASING_HIGH);
$expect = $path . ' -dSAFER -dQUIET -dNOPLATFONTS -dNOPAUSE -dBATCH -sOutputFile="' . $dir . 'output.png" -sDEVICE=pngalpha -r72 -dTextAlphaBits=4 -dGraphicsAlphaBits=4 "' . $filename . '"';
$this->assertEquals($expect, $f->getRenderString());
$f->setTextAntiAliasing(Ghostscript::ANTIALIASING_NONE);
$expect = $path . ' -dSAFER -dQUIET -dNOPLATFONTS -dNOPAUSE -dBATCH -sOutputFile="' . $dir . 'output.png" -sDEVICE=pngalpha -r72 -dGraphicsAlphaBits=4 "' . $filename . '"';
$this->assertEquals($expect, $f->getRenderString());
$f->setDevice('jpeg');
$expect = $path . ' -dSAFER -dQUIET -dNOPLATFONTS -dNOPAUSE -dBATCH -sOutputFile="' . $dir . 'output.jpeg" -sDEVICE=jpeg -dJPEGQ=75 -dQFactor=0.75 -r72 -dGraphicsAlphaBits=4 "' . $filename . '"';
$this->assertEquals($expect, $f->getRenderString());
}
/**
* Get the command-line that can be executed via exec
*
* @return string
*/
public function getRenderString()
{
if (null === $this->getInputFile()) {
return '';
}
$string = Ghostscript::getGsPath();
$string .= ' -dSAFER -dQUIET -dNOPLATFONTS -dNOPAUSE -dBATCH';
$string .= ' -sOutputFile="' . $this->getOutputFile() . '.' . $this->getDevice()->getFileEnding() . '"';
$string .= $this->getDevice()->getParameterString();
$string .= ' -r' . $this->getResolution();
if ($this->isTextAntiAliasingSet()) {
$string .= ' -dTextAlphaBits=' . $this->getTextAntiAliasing();
}
if ($this->isGraphicsAntiAliasingSet()) {
$string .= ' -dGraphicsAlphaBits=' . $this->getGraphicsAntiAliasing();
}
$string .= $this->getPageRangeString();
$string .= ' "' . $this->getInputFile() . '"';
return $string;
}