public function MaskImageEffect::applyEffect in Image Effects 8.2

Same name and namespace in other branches

1. 8.3 src/Plugin/ImageEffect/MaskImageEffect.php \Drupal\image_effects\Plugin\ImageEffect\MaskImageEffect::applyEffect()
2. 8 src/Plugin/ImageEffect/MaskImageEffect.php \Drupal\image_effects\Plugin\ImageEffect\MaskImageEffect::applyEffect()

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 ImageEffectInterface::applyEffect

File

src/Plugin/ImageEffect/MaskImageEffect.php, line 185

Class

MaskImageEffect

Class MaskImageEffect.

Namespace

Drupal\image_effects\Plugin\ImageEffect

Code

public function applyEffect(ImageInterface $image) {

  // Get the mask image object.
  $mask_image = $this->imageFactory
    ->get($this->configuration['mask_image']);
  if (!$mask_image
    ->isValid()) {
    $this->logger
      ->error('Image mask failed using the %toolkit toolkit on %path', [
      '%toolkit' => $image
        ->getToolkitId(),
      '%path' => $this->configuration['mask_image'],
    ]);
    return FALSE;
  }

  // Determine mask dimensions if they need to be changed.
  if ((bool) $this->configuration['mask_width'] || (bool) $this->configuration['mask_height']) {
    $mask_aspect = $mask_image
      ->getHeight() / $mask_image
      ->getWidth();
    $mask_width = ImageUtility::percentFilter($this->configuration['mask_width'], $image
      ->getWidth());
    $mask_height = ImageUtility::percentFilter($this->configuration['mask_height'], $image
      ->getHeight());
    if ($mask_width && !$mask_height) {
      $mask_height = (int) round($mask_width * $mask_aspect);
    }
    elseif (!$mask_width && $mask_height) {
      $mask_width = (int) round($mask_height / $mask_aspect);
    }
  }
  else {
    $mask_width = $mask_image
      ->getWidth();
    $mask_height = $mask_image
      ->getHeight();
  }

  // Calculate position of mask on source image based on placement option.
  list($x, $y) = explode('-', $this->configuration['placement']);
  $x_pos = round(image_filter_keyword($x, $image
    ->getWidth(), $mask_width));
  $y_pos = round(image_filter_keyword($y, $image
    ->getHeight(), $mask_height));

  // Calculate offset based on px/percentage.
  $x_offset = (int) ImageUtility::percentFilter($this->configuration['x_offset'], $image
    ->getWidth());
  $y_offset = (int) ImageUtility::percentFilter($this->configuration['y_offset'], $image
    ->getHeight());
  return $image
    ->apply('mask', [
    'mask_image' => $mask_image,
    'mask_width' => $mask_width !== $mask_image
      ->getWidth() ? $mask_width : NULL,
    'mask_height' => $mask_height !== $mask_image
      ->getHeight() ? $mask_height : NULL,
    'x_offset' => $x_pos + $x_offset,
    'y_offset' => $y_pos + $y_offset,
  ]);
}