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<?php
namespace Drupal\imagick\Plugin\ImageEffect;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Image\ImageInterface;
use Drupal\image\ConfigurableImageEffectBase;
class SharpenImageEffect extends ConfigurableImageEffectBase {
public function applyEffect(ImageInterface $image) {
if (!$image
->apply('sharpen', $this->configuration)) {
$this->logger
->error('Image sharpen failed using the %toolkit toolkit on %path (%mimetype)', [
'%toolkit' => $image
->getToolkitId(),
'%path' => $image
->getSource(),
'%mimetype' => $image
->getMimeType(),
]);
return FALSE;
}
return TRUE;
}
public function defaultConfiguration() {
return [
'radius' => '0',
'sigma' => '1',
'amount' => '1.0',
'threshold' => '0.05',
];
}
public function buildConfigurationForm(array $form, FormStateInterface $form_state) {
$form['radius'] = [
'#type' => 'number',
'#title' => $this
->t('Radius'),
'#description' => $this
->t('The radius of the Gaussian, in pixels, not counting the center pixel. Use 0 for auto-select.'),
'#default_value' => $this->configuration['radius'],
];
$form['sigma'] = [
'#type' => 'number',
'#title' => $this
->t('Sigma'),
'#description' => $this
->t('The standard deviation of the Gaussian, in pixels.'),
'#default_value' => $this->configuration['sigma'],
];
$form['amount'] = [
'#type' => 'number',
'#step' => '0.1',
'#title' => t('Amount'),
'#description' => t('The fraction of the difference between the original and the blur image that is added back into the original.'),
'#default_value' => $this->configuration['amount'],
];
$form['threshold'] = [
'#type' => 'number',
'#step' => '0.01',
'#title' => t('Threshold'),
'#description' => t('The threshold, as a fraction of QuantumRange, needed to apply the difference amount.'),
'#default_value' => $this->configuration['threshold'],
];
return $form;
}
public function submitConfigurationForm(array &$form, FormStateInterface $form_state) {
parent::submitConfigurationForm($form, $form_state);
$this->configuration['radius'] = $form_state
->getValue('radius');
$this->configuration['sigma'] = $form_state
->getValue('sigma');
$this->configuration['amount'] = $form_state
->getValue('amount');
$this->configuration['threshold'] = $form_state
->getValue('threshold');
}
}