/**
* Helper method to add common parameters and code.
*
* @param AbstractImageFilter $filter The filter to execute method on.
* @param string $op The filter-specific command line options
* @param $ignoreSourceFile If true source file is not added to exec cmdParams
* @return string The filter's target file
*/
public static function executeFilter(AbstractImageFilter $filter, $op, $ignoreSourceFile = false)
{
if ($filter->outputAlpha != null) {
if ($filter->outputAlpha == true) {
$op .= " -alpha On";
} else {
$op .= " -alpha Off";
}
}
if (null !== $filter->interlace) {
$op .= " -interlace {$filter->interlace}";
}
$op .= " -quality {$filter->outputQuality}";
$inFile = escapeshellarg($filter->sourceFile);
$outFile = escapeshellarg($filter->targetFile);
if ($ignoreSourceFile) {
$cmdParams = "{$op} {$outFile}";
} else {
$cmdParams = "{$inFile} {$op} {$outFile}";
}
$filter->exec($cmdParams);
return $filter->targetFile;
}
