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<?php
namespace Drupal\imagick\Plugin\ImageEffect;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Image\ImageInterface;
use Drupal\image\ConfigurableImageEffectBase;
use Drupal\imagick\ImagickConst;
class BlurImageEffect extends ConfigurableImageEffectBase {
public function applyEffect(ImageInterface $image) {
if (!$image
->apply('blur', $this->configuration)) {
$this->logger
->error('Image blur 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 [
'type' => ImagickConst::NORMAL_BLUR,
'radius' => '16',
'sigma' => '16',
'angle' => '0',
];
}
public function buildConfigurationForm(array $form, FormStateInterface $form_state) {
$form['help'] = [
'#value' => $this
->t('The intensity of the blur effect. For reasonable results, the radius should be larger than sigma.'),
];
$form['type'] = [
'#type' => 'select',
'#title' => $this
->t('Blur type'),
'#options' => [
ImagickConst::NORMAL_BLUR => $this
->t('Normal'),
ImagickConst::ADAPTIVE_BLUR => $this
->t('Adaptive'),
ImagickConst::GAUSSIAN_BLUR => $this
->t('Gaussian'),
ImagickConst::MOTION_BLUR => $this
->t('Motion'),
ImagickConst::RADIAL_BLUR => $this
->t('Radial'),
],
'#default_value' => $this->configuration['type'],
];
$form['radius'] = [
'#type' => 'number',
'#title' => $this
->t('Radius'),
'#description' => $this
->t('The radius of the Gaussian, in pixels, not counting the center pixel.'),
'#states' => [
'invisible' => [
':input[name="data[type]"]' => [
'value' => ImagickConst::RADIAL_BLUR,
],
],
],
'#default_value' => $this->configuration['radius'],
];
$form['sigma'] = [
'#type' => 'number',
'#title' => $this
->t('Sigma'),
'#description' => $this
->t('The standard deviation of the Gaussian, in pixels'),
'#states' => [
'invisible' => [
':input[name="data[type]"]' => [
'value' => ImagickConst::RADIAL_BLUR,
],
],
],
'#default_value' => $this->configuration['sigma'],
];
$form['angle'] = [
'#type' => 'number',
'#title' => $this
->t('Angle'),
'#description' => $this
->t('The angle of the blur'),
'#states' => [
'visible' => [
':input[name="data[type]"]' => [
[
'value' => ImagickConst::MOTION_BLUR,
],
[
'value' => ImagickConst::RADIAL_BLUR,
],
],
],
],
'#default_value' => $this->configuration['angle'],
];
return $form;
}
public function submitConfigurationForm(array &$form, FormStateInterface $form_state) {
parent::submitConfigurationForm($form, $form_state);
$this->configuration['type'] = $form_state
->getValue('type');
$this->configuration['radius'] = $form_state
->getValue('radius');
$this->configuration['sigma'] = $form_state
->getValue('sigma');
$this->configuration['angle'] = $form_state
->getValue('angle');
}
}