public function RelativeCropImageEffect::applyEffect in Image Effects 8.3

Applies an image effect to the image object.

Parameters

\Drupal\Core\Image\ImageInterface $image: An image file object.

Return value

bool TRUE on success. FALSE if unable to perform the image effect on the image.

Overrides CropImageEffect::applyEffect

File

src/Plugin/ImageEffect/RelativeCropImageEffect.php, line 23

Class

RelativeCropImageEffect

Provides an image effect that crops images to a ratio.

Namespace

Drupal\image_effects\Plugin\ImageEffect

Code

public function applyEffect(ImageInterface $image) {
  $dimensions = [
    'width' => $image
      ->getWidth(),
    'height' => $image
      ->getHeight(),
  ];

  // Bail if the image is invalid.
  if ($dimensions['width'] === NULL || $dimensions['height'] === NULL) {
    return FALSE;
  }
  $original_dimensions = $dimensions;
  $this
    ->transformDimensions($dimensions, $image
    ->getSource());

  // Pick the right anchor depending on whether the image is being cropped in
  // width or in height.
  if ($dimensions['width'] !== $original_dimensions['width']) {
    $x = image_filter_keyword($this->configuration['anchor']['width'], $original_dimensions['width'], $dimensions['width']);
    $y = 0;
  }
  elseif ($dimensions['height'] !== $original_dimensions['height']) {
    $x = 0;
    $y = image_filter_keyword($this->configuration['anchor']['height'], $original_dimensions['height'], $dimensions['height']);
  }
  else {

    // If the image already has the correct dimensions, do not do anything.
    return TRUE;
  }
  if (!$image
    ->crop($x, $y, $dimensions['width'], $dimensions['height'])) {
    $this->logger
      ->error('Image crop failed using the %toolkit toolkit on %path (%mimetype, %dimensions)', [
      '%toolkit' => $image
        ->getToolkitId(),
      '%path' => $image
        ->getSource(),
      '%mimetype' => $image
        ->getMimeType(),
      '%dimensions' => $image
        ->getWidth() . 'x' . $image
        ->getHeight(),
    ]);
    return FALSE;
  }
  return TRUE;
}