function imagick_posterize_form in Imagick 7

Image effect form callback for the posterize effect.

Parameters

array $data: The current configuration for this image effect.

Return value

array The form definition for this effect.

1 string reference to 'imagick_posterize_form'

imagick_image_effect_info in ./imagick.module

Implements hook_image_effect_info()

File

effects/imagick.posterize.inc, line 39

Code

function imagick_posterize_form($data) {
  $data = array_merge(imagick_posterize_defaults(), (array) $data);
  $form['colors'] = array(
    '#type' => 'textfield',
    '#title' => t('Color levels per channel'),
    '#default_value' => isset($data['colors']) ? $data['colors'] : '',
    '#required' => TRUE,
    '#size' => 10,
    '#element_validate' => array(
      'image_effect_integer_validate',
    ),
    '#allow_negative' => FALSE,
    '#description' => t('Number of unique values per color channel to reduce this image to. The transparency channel is left unchanged. This effect can be used to reduce file size on png images.'),
  );
  return $form;
}