/**
* @param null $width
* @param null $height
* @return $this
*/
public function extent($width = null, $height = null)
{
$this->checkFinalized();
$command = new Command(__TRAIT__, function (Command $command) {
return ' -extent ' . (0 == $command->width ? '' : $command->width) . 'x' . (0 == $command->height ? '' : $command->height);
});
$command->width = (int) round($width);
$command->height = (int) round($height);
$this->addFinalizeListener(function (CommandBuilder $builder) use($command) {
if (!$builder->getFirstCommand(Background::class)) {
$builder->background();
$builder->getLastCommand()->setPriority($command->getPriority() - 1);
}
if (false !== ($halign = $builder->getFirstCommand(HAlign::class))) {
$halign->setPriority($command->getPriority() - 1);
}
if (false !== ($valign = $builder->getFirstCommand(VAlign::class))) {
$valign->setPriority($command->getPriority() - 1);
}
});
$this->addCommand($command);
return $this;
}
