/**
* {@inheritDoc}
*/
public function process(Configuration $config)
{
$sprite = $config->getImagine()->create(new Box(ceil($config->getWidth() * iterator_count($config->getFinder())), 1), $config->getColor());
$pointer = 0;
$styles = '';
foreach ($config->getFinder() as $file) {
$image = $config->getImagine()->open($file->getRealPath());
// resize if image exceeds fixed with
if (true === $this->getOption('resize') && $image->getSize()->getWidth() > $config->getWidth()) {
$image->resize(new Box($config->getWidth(), round($image->getSize()->getHeight() / $image->getSize()->getWidth() * $config->getWidth())));
}
// adjust height if necessary
if ($image->getSize()->getHeight() > $sprite->getSize()->getHeight()) {
// copy&paste into an extended sprite
$sprite = $config->getImagine()->create(new Box($sprite->getSize()->getWidth(), $image->getSize()->getHeight()), $config->getColor())->paste($sprite, new Point(0, 0));
}
// paste image into sprite
$sprite->paste($image, new Point($pointer, 0));
// append stylesheet code
$styles .= $this->parseSelector($config->getSelector(), $file, $pointer);
// move horizontal cursor
$pointer += $config->getWidth();
}
$this->save($config, $sprite, $styles);
}