Method getGroups

/**
 * Method to get the list of template chrome style options
 * grouped by template.
 *
 * @return  array  The field option objects as a nested array in groups.
 *
 * @since   3.0
 */
protected function getGroups()
{
    $groups = array();
    // Add Module Style Field
    $tmp = '---' . Text::_('JLIB_FORM_VALUE_FROM_TEMPLATE') . '---';
    $groups[$tmp][] = HTMLHelper::_('select.option', '0', Text::_('JLIB_FORM_VALUE_INHERITED'));
    $templateStyles = $this->getTemplateModuleStyles();
    // Create one new option object for each available style, grouped by templates
    foreach ($templateStyles as $template => $styles) {
        $template = ucfirst($template);
        $groups[$template] = array();
        foreach ($styles as $style) {
            $tmp = HTMLHelper::_('select.option', $template . '-' . $style, $style);
            $groups[$template][] = $tmp;
        }
    }
    reset($groups);
    return $groups;
}