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| <?php | |
| /** | |
| * @file | |
| * Contains \Drupal\image\Plugin\ImageEffect\RotateImageEffect. | |
| */ | |
| namespace Drupal\image\Plugin\ImageEffect; | |
| use Drupal\Component\Utility\Color; | |
| use Drupal\Core\Form\FormStateInterface; | |
| use Drupal\Core\Image\ImageInterface; | |
| use Drupal\image\ConfigurableImageEffectBase; | |
| /** | |
| * Rotates an image resource. | |
| * | |
| * @ImageEffect( | |
| * id = "image_rotate", | |
| * label = @Translation("Rotate"), | |
| * description = @Translation("Rotating an image may cause the dimensions of an image to increase to fit the diagonal.") | |
| * ) | |
| */ | |
| class RotateImageEffect extends ConfigurableImageEffectBase { | |
| /** | |
| * {@inheritdoc} | |
| */ | |
| public function applyEffect(ImageInterface $image) { | |
| if (!empty($this->configuration['random'])) { | |
| $degrees = abs((float) $this->configuration['degrees']); | |
| $this->configuration['degrees'] = rand(-$degrees, $degrees); | |
| } | |
| if (!$image->rotate($this->configuration['degrees'], $this->configuration['bgcolor'])) { | |
| $this->logger->error('Image rotate 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, $uri) { | |
| // If the rotate is not random and the angle is a multiple of 90 degrees, | |
| // then the new dimensions can be determined. | |
| if (!$this->configuration['random'] && ((int) ($this->configuration['degrees']) == $this->configuration['degrees']) && ($this->configuration['degrees'] % 90 == 0)) { | |
| if ($this->configuration['degrees'] % 180 != 0) { | |
| $temp = $dimensions['width']; | |
| $dimensions['width'] = $dimensions['height']; | |
| $dimensions['height'] = $temp; | |
| } | |
| } | |
| else { | |
| $dimensions['width'] = $dimensions['height'] = NULL; | |
| } | |
| } | |
| /** | |
| * {@inheritdoc} | |
| */ | |
| public function getSummary() { | |
| $summary = array( | |
| '#theme' => 'image_rotate_summary', | |
| '#data' => $this->configuration, | |
| ); | |
| $summary += parent::getSummary(); | |
| return $summary; | |
| } | |
| /** | |
| * {@inheritdoc} | |
| */ | |
| public function defaultConfiguration() { | |
| return array( | |
| 'degrees' => 0, | |
| 'bgcolor' => NULL, | |
| 'random' => FALSE, | |
| ); | |
| } | |
| /** | |
| * {@inheritdoc} | |
| */ | |
| public function buildConfigurationForm(array $form, FormStateInterface $form_state) { | |
| $form['degrees'] = array( | |
| '#type' => 'number', | |
| '#default_value' => $this->configuration['degrees'], | |
| '#title' => t('Rotation angle'), | |
| '#description' => t('The number of degrees the image should be rotated. Positive numbers are clockwise, negative are counter-clockwise.'), | |
| '#field_suffix' => '°', | |
| '#required' => TRUE, | |
| ); | |
| $form['bgcolor'] = array( | |
| '#type' => 'textfield', | |
| '#default_value' => $this->configuration['bgcolor'], | |
| '#title' => t('Background color'), | |
| '#description' => t('The background color to use for exposed areas of the image. Use web-style hex colors (#FFFFFF for white, #000000 for black). Leave blank for transparency on image types that support it.'), | |
| '#size' => 7, | |
| '#maxlength' => 7, | |
| ); | |
| $form['random'] = array( | |
| '#type' => 'checkbox', | |
| '#default_value' => $this->configuration['random'], | |
| '#title' => t('Randomize'), | |
| '#description' => t('Randomize the rotation angle for each image. The angle specified above is used as a maximum.'), | |
| ); | |
| return $form; | |
| } | |
| /** | |
| * {@inheritdoc} | |
| */ | |
| public function validateConfigurationForm(array &$form, FormStateInterface $form_state) { | |
| if (!$form_state->isValueEmpty('bgcolor') && !Color::validateHex($form_state->getValue('bgcolor'))) { | |
| $form_state->setErrorByName('bgcolor', $this->t('Background color must be a hexadecimal color value.')); | |
| } | |
| } | |
| /** | |
| * {@inheritdoc} | |
| */ | |
| public function submitConfigurationForm(array &$form, FormStateInterface $form_state) { | |
| parent::submitConfigurationForm($form, $form_state); | |
| $this->configuration['degrees'] = $form_state->getValue('degrees'); | |
| $this->configuration['bgcolor'] = $form_state->getValue('bgcolor'); | |
| $this->configuration['random'] = $form_state->getValue('random'); | |
| } | |
| } |