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| <?php | |
| /** | |
| * @file | |
| * Contains \Drupal\image\Plugin\ImageEffect\ScaleImageEffect. | |
| */ | |
| namespace Drupal\image\Plugin\ImageEffect; | |
| use Drupal\Component\Utility\Image; | |
| use Drupal\Core\Form\FormStateInterface; | |
| use Drupal\Core\Image\ImageInterface; | |
| /** | |
| * Scales an image resource. | |
| * | |
| * @ImageEffect( | |
| * id = "image_scale", | |
| * label = @Translation("Scale"), | |
| * description = @Translation("Scaling will maintain the aspect-ratio of the original image. If only a single dimension is specified, the other dimension will be calculated.") | |
| * ) | |
| */ | |
| class ScaleImageEffect extends ResizeImageEffect { | |
| /** | |
| * {@inheritdoc} | |
| */ | |
| public function applyEffect(ImageInterface $image) { | |
| if (!$image->scale($this->configuration['width'], $this->configuration['height'], $this->configuration['upscale'])) { | |
| $this->logger->error('Image scale failed using the %toolkit toolkit on %path (%mimetype, %dimensions)', array('%toolkit' => $image->getToolkitId(), '%path' => $image->getSource(), '%mimetype' => $image->getMimeType(), '%dimensions' => $image->getWidth() . 'x' . $image->getHeight())); | |
| return FALSE; | |
| } | |
| return TRUE; | |
| } | |
| /** | |
| * {@inheritdoc} | |
| */ | |
| public function transformDimensions(array &$dimensions, $uri) { | |
| if ($dimensions['width'] && $dimensions['height']) { | |
| Image::scaleDimensions($dimensions, $this->configuration['width'], $this->configuration['height'], $this->configuration['upscale']); | |
| } | |
| } | |
| /** | |
| * {@inheritdoc} | |
| */ | |
| public function getSummary() { | |
| $summary = array( | |
| '#theme' => 'image_scale_summary', | |
| '#data' => $this->configuration, | |
| ); | |
| $summary += parent::getSummary(); | |
| return $summary; | |
| } | |
| /** | |
| * {@inheritdoc} | |
| */ | |
| public function defaultConfiguration() { | |
| return parent::defaultConfiguration() + array( | |
| 'upscale' => FALSE, | |
| ); | |
| } | |
| /** | |
| * {@inheritdoc} | |
| */ | |
| public function buildConfigurationForm(array $form, FormStateInterface $form_state) { | |
| $form = parent::buildConfigurationForm($form, $form_state); | |
| $form['width']['#required'] = FALSE; | |
| $form['height']['#required'] = FALSE; | |
| $form['upscale'] = array( | |
| '#type' => 'checkbox', | |
| '#default_value' => $this->configuration['upscale'], | |
| '#title' => t('Allow Upscaling'), | |
| '#description' => t('Let scale make images larger than their original size'), | |
| ); | |
| return $form; | |
| } | |
| /** | |
| * {@inheritdoc} | |
| */ | |
| public function validateConfigurationForm(array &$form, FormStateInterface $form_state) { | |
| parent::validateConfigurationForm($form, $form_state); | |
| if ($form_state->isValueEmpty('width') && $form_state->isValueEmpty('height')) { | |
| $form_state->setErrorByName('data', $this->t('Width and height can not both be blank.')); | |
| } | |
| } | |
| /** | |
| * {@inheritdoc} | |
| */ | |
| public function submitConfigurationForm(array &$form, FormStateInterface $form_state) { | |
| parent::submitConfigurationForm($form, $form_state); | |
| $this->configuration['upscale'] = $form_state->getValue('upscale'); | |
| } | |
| } |