1: 2: 3: 4: 5: 6: 7: 8: 9: 10: 11: 12: 13: 14: 15: 16: 17: 18:
<?php
namespace Scene7\Commands\Layer;
trait Contrast
{
public function setContrast($adjustment)
{
$adjustment = (int) $adjustment;
if ($adjustment < -100 || $adjustment > 100) {
throw new \InvalidArgumentException('Adjustment must be between -100 and 100');
}
$this->addCommand(['op_contrast' => $adjustment]);
return $this;
}
}