Implements hook_field_widget_settings_form().

File

drupal-7.x/modules/image/image.field.inc, line 304

Implement an image field, based on the file module's file field.

Code

function image_field_widget_settings_form($field, $instance) {
  $widget = $instance['widget'];
  $settings = $widget['settings'];

  // Use the file widget settings form.
  $form = file_field_widget_settings_form($field, $instance);

  $form['preview_image_style'] = array(
    '#title' => t('Preview image style'),
    '#type' => 'select',
    '#options' => image_style_options(FALSE, PASS_THROUGH),
    '#empty_option' => '<' . t('no preview') . '>',
    '#default_value' => $settings['preview_image_style'],
    '#description' => t('The preview image will be shown while editing the content.'),
    '#weight' => 15,
  );

  return $form;
}