<?php
/**
 * IRepeatInfoUser, TRepeatInfo class file
 *
 * @author Qiang Xue <qiang.xue@gmail.com>
 * @link http://www.pradosoft.com/
 * @copyright Copyright &copy; 2005-2014 PradoSoft
 * @license http://www.pradosoft.com/license/
 * @package Prado\Web\UI\WebControls
 */

namespace Prado\Web\UI\WebControls;

/**
 * IRepeatInfoUser interface.
 * This interface must be implemented by classes who want to use {@link TRepeatInfo}.
 *
 * @author Qiang Xue <qiang.xue@gmail.com>
 * @package Prado\Web\UI\WebControls
 * @since 3.0
 */
interface IRepeatInfoUser
{
	/**
	 * @return boolean whether the repeat user contains footer
	 */
	public function getHasFooter();
	/**
	 * @return boolean whether the repeat user contains header
	 */
	public function getHasHeader();
	/**
	 * @return boolean whether the repeat user contains separators
	 */
	public function getHasSeparators();
	/**
	 * @return integer number of items to be rendered (excluding header, footer and separators)
	 */
	public function getItemCount();
	/**
	 * @param string item type (Header,Footer,Item,AlternatingItem,SelectedItem,EditItem,Separator,Pager)
	 * @param integer zero-based index of the current rendering item.
	 * @return TStyle CSS style used for rendering items (including header, footer and separators)
	 */
	public function generateItemStyle($itemType,$index);
	/**
	 * Renders an item.
	 * @param THtmlWriter writer for the rendering purpose
	 * @param TRepeatInfo repeat information
	 * @param string item type
	 * @param integer zero-based index of the item being rendered
	 */
	public function renderItem($writer,$repeatInfo,$itemType,$index);
}