/**
* Generates a thumbnail of the image
*
* @param $dimension
*
* @return string
*/
public function generate($dimension)
{
list($width, $height) = Utils::getDimension($dimension);
list($path, $basename, $extension) = $this->pathComponents();
$thumbnail = sprintf('%s/%s-%dx%d.%s', $path, $basename, $width, $height, $extension);
Image::thumbnail($this->imagePath, $width, $height)->save($thumbnail);
return $thumbnail;
}
/**
* Performs resize of the image. Imagine component is used.
*
* @param ImageInterface $imagine
* @param $resize
* @param bool $crop
*
* @return BoxInterface
*/
private function performResize($imagine, $resize, $crop = true)
{
$box = $imagine->getSize();
list($width, $height) = Utils::getDimension($resize);
$box = $box->scale(max($width / $box->getWidth(), $height / $box->getHeight()));
$imagine->resize($box);
if ($crop) {
$point = new Point(($box->getWidth() - $width) / 2, ($box->getHeight() - $height) / 2);
$imagine->crop($point, new Box($width, $height));
}
return $box;
}
/**
* @param BaseActiveRecord $owner
* @param $attribute
* @param $dimension
* @param bool $absoluteUrl
*
* @return mixed|null|string
*/
public function thumbnail($owner, $attribute, $dimension, $absoluteUrl = true)
{
$value = $owner->getAttribute($attribute);
if ((new UrlValidator())->validate($value)) {
return $value;
}
if ($value && file_exists($value)) {
return Url::to('@web/' . (new Thumbnailer(['imagePath' => $value]))->generate($dimension), $absoluteUrl);
}
if ($this->placeholder) {
list($width, $height) = Utils::getDimension($dimension);
return call_user_func([$this->placeholder, 'getImage'], $width, $height);
}
return null;
}
