function smartyImageResize($params, &$smarty)
 {
     $path = @$params['path'];
     $name = @$params['name'];
     $height = @$params['height'];
     $width = @$params['width'];
     $customPath = @$params['customPath'];
     $method = isset($params['method']) ? $params['method'] : PstImage::METHOD_RESIZE;
     if ($customPath) {
         return PstImage::cacheResizeCustomPath($path, $name, $height, $width, $method);
     } else {
         return PstImage::cacheResize($path, $name, $height, $width, $method);
     }
 }
 /**
  * function render form of your module configuration
  * @return string
  */
 public function renderPstConfiForm()
 {
     //        $fields_form = array(
     //            'form' => array(
     //                'legend' => array(
     //                    'title' => $this->l('Settings') . ' ' . $this->displayName,
     //                    'icon' => 'icon-cogs'
     //                ),
     //                'input' => array(),
     //                'submit' => array(
     //                    'title' => $this->l('Save')
     //                )
     //            )
     //        );
     $field_types = $this->getPstFieldTypes();
     $fieldset_list = array();
     $is_multi_lang = false;
     foreach ($this->getPstConfig() as $key => $fieldset_data) {
         $fieldset = array('tinymce' => true, 'legend' => array('title' => $fieldset_data['label'], 'icon' => 'icon-cogs'), 'input' => array());
         foreach ($fieldset_data['fields'] as $field_name => $data) {
             if (!isset($data['type'])) {
                 throw new PrestaShopException('Type is not define : ' . $data['type']);
             }
             if (!isset($field_types[$data['type']])) {
                 throw new PrestaShopException('Type is unknow : ' . $data['type']);
             }
             $type_option = $field_types[$data['type']];
             $field = array('type' => $type_option['form_type'], 'name' => strtolower($field_name), 'class' => 't');
             if (isset($type_option['is_bool']) && $type_option['is_bool']) {
                 $field['is_bool'] = true;
                 $field['values'] = array(array('id' => 'active_on', 'value' => 1, 'label' => $this->l('Enabled')), array('id' => 'active_off', 'value' => 0, 'label' => $this->l('Disabled')));
             }
             if (isset($type_option['rte']) && $type_option['rte']) {
                 $field['autoload_rte'] = true;
                 $field['rows'] = 5;
                 $field['cols'] = 40;
                 $field['hint'] = $this->l('Invalid characters:') . ' <>;=#{}';
             }
             if (isset($type_option['is_multi_lang']) && $type_option['is_multi_lang']) {
                 $field['lang'] = true;
                 $is_multi_lang = true;
             }
             if (isset($data['required']) && $data['required']) {
                 $field['required'] = true;
             }
             if (isset($data['desc']) && !empty($data['desc'])) {
                 $field['desc'] = $this->l($data['desc']);
             }
             if (isset($data['label']) && !empty($data['label'])) {
                 $field['label'] = $this->l($data['label']);
             }
             $fieldset['input'][] = $field;
             switch ($data['type']) {
                 case 'image':
                 case 'image_ml':
                     foreach (Language::getLanguages() as $lang) {
                         $iso_code = $lang['iso_code'];
                         $ext = 'jpg';
                         $image = file_exists(_PS_IMG_DIR_ . '/' . $this->module_name . '/config/' . strtolower($field_name) . '/' . $iso_code . '.jpg');
                         if (!$image) {
                             $ext = 'png';
                             $image = file_exists(_PS_IMG_DIR_ . '/' . $this->module_name . '/config/' . strtolower($field_name) . '/' . $iso_code . '.png');
                         }
                         $image_size = $image_url = false;
                         if ($image) {
                             $image_url = PstImage::cacheResizeCustomPath('/img/' . $this->module_name . '/config/' . strtolower($field_name) . '/', $iso_code . '.' . $ext, 150, 150);
                             $image_url = $image ? '<img src="' . $image_url . '" />' : false;
                             $image_size = filesize(_PS_IMG_DIR_ . '/' . $this->module_name . '/config/' . strtolower($field_name) . '/' . $iso_code . '.' . $ext) / 1000;
                         }
                         $fieldset['input'][] = array('type' => 'file', 'label' => $this->l($data['label']) . ' ' . $iso_code . ':', 'name' => $field_name . '_' . $iso_code, 'display_image' => true, 'image' => $image_url ? $image_url : false, 'size' => $image_size, 'delete_url' => self::$currentIndex . '&token=' . $this->token . '&forcedeleteImage=1&name=' . $field_name);
                     }
                     break;
             }
         }
         $fieldset_list[] = array('form' => $fieldset);
     }
     $this->lang = $is_multi_lang;
     $helper = new HelperForm();
     $fieldset_list[count($fieldset_list) - 1]['form']['submit'] = array('name' => $helper->submit_action, 'title' => $this->l('Save'));
     $helper->show_toolbar = false;
     $helper->table = $this->table;
     $lang = new Language((int) Configuration::get('PS_LANG_DEFAULT'));
     $helper->default_form_language = $lang->id;
     $helper->allow_employee_form_lang = Configuration::get('PS_BO_ALLOW_EMPLOYEE_FORM_LANG') ? Configuration::get('PS_BO_ALLOW_EMPLOYEE_FORM_LANG') : 0;
     $this->fields_form = array();
     $helper->identifier = $this->identifier;
     $helper->submit_action = 'submitPstModuleConfig';
     //        $helper->currentIndex = $this->context->link->getAdminLink('AdminModules', false).'&configure='.$this->name.'&tab_module='.$this->tab.'&module_name='.$this->name;
     $helper->token = Tools::getAdminTokenLite('AdminModules');
     $helper->tpl_vars = array('fields_value' => $this->getConfigFieldsValues(), 'languages' => $this->context->controller->getLanguages(), 'id_language' => $this->context->language->id);
     return $helper->generateForm($fieldset_list);
 }