function image_field_settings_form

Implements hook_field_settings_form().

File

core/modules/image/image.field.inc, line 41

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

Code

function image_field_settings_form($field, $instance) {
  $defaults = field_info_field_settings($field['type']);
  $settings = array_merge($defaults, $field['settings']);

  $scheme_options = array();
  foreach (file_get_stream_wrappers(STREAM_WRAPPERS_WRITE_VISIBLE) as $scheme => $stream_wrapper) {
    $scheme_options[$scheme] = $stream_wrapper['name'];
  }
  $form['uri_scheme'] = array(
    '#type' => 'radios',
    '#title' => t('Upload destination'),
    '#options' => $scheme_options,
    '#default_value' => $settings['uri_scheme'],
    '#description' => t('Select where the final files should be stored. Private file storage has significantly more overhead than public files, but allows restricted access to files within this field.'),
  );

  $form['default_image'] = array(
    '#element_validate' => array('_image_field_default_image_validate'),
    '#default_scheme' => $field['settings']['uri_scheme'],
    '#target' => array('field', 'settings', 'default_image'),
  );
  $form['default_image']['file'] = array(
    '#title' => t('Default image'),
    '#type' => 'file',
    '#description' => t('If no image is uploaded, this image will be shown on display.'),
  );
  if ($field['settings']['default_image']) {
    $link = l(basename($field['settings']['default_image']), file_create_url($field['settings']['default_image']), array('attributes' => array('target' => '_blank')));
    $form['default_image']['file']['#description'] .= '<br />' . t('Current image: !link', array('!link' => $link));

    $form['default_image']['remove'] = array(
      '#type' => 'checkbox',
      '#title' => t('Remove default image'),
    );
  }

  return $form;
}