<?php
/**
 * TTable and TTableRowCollection class file
 *
 * @author Qiang Xue <qiang.xue@gmail.com>
 * @link http://www.pradosoft.com/
 * @copyright Copyright &copy; 2005 PradoSoft
 * @license http://www.pradosoft.com/license/
 * @version $Revision: $  $Date: $
 * @package System.Web.UI.WebControls
 */

/**
 * Includes TTableRow class
 */
Prado::using('System.Web.UI.WebControls.TTableRow');

/**
 * TTable class
 *
 * TTable displays an HTML table on a Web page.
 *
 * A table may have {@link setCaption Caption}, whose alignment is specified
 * via {@link setCaptionAlign CaptionAlign}. The table cellpadding and cellspacing
 * are specified via {@link setCellPadding CellPadding} and {@link setCellSpacing CellSpacing}
 * properties, respectively. The {@link setGridLines GridLines} specifies how
 * the table should display its borders. The horizontal alignment of the table
 * content can be specified via {@link setHorizontalAlign HorizontalAlign},
 * and {@link setBackImageUrl BackImageUrl} can assign a background image to the table.
 *
 * A TTable maintains a list of {@link TTableRow} controls in its
 * {@link getRows Rows} property. Each {@link TTableRow} represents
 * an HTML table row.
 *
 * To populate the table {@link getRows Rows}, you may either use control template
 * or dynamically create {@link TTableRow} in code.
 * In template, do as follows to create the table rows and cells,
 * <code>
 *   <com:TTable>
 *     <com:TTableRow>
 *       <com:TTableCell Text="content" />
 *       <com:TTableCell Text="content" />
 *     </com:TTableRow>
 *     <com:TTableRow>
 *       <com:TTableCell Text="content" />
 *       <com:TTableCell Text="content" />
 *     </com:TTableRow>
 *   <com:TTable>
 * </code>
 * The above can also be accomplished in code as follows,
 * <code>
 *   $table=new TTable;
 *   $row=new TTableRow;
 *   $cell=new TTableCell; $cell->Text="content"; $row->Cells->add($cell);
 *   $cell=new TTableCell; $cell->Text="content"; $row->Cells->add($cell);
 *   $table->Rows->add($row);
 *   $row=new TTableRow;
 *   $cell=new TTableCell; $cell->Text="content"; $row->Cells->add($cell);
 *   $cell=new TTableCell; $cell->Text="content"; $row->Cells->add($cell);
 *   $table->Rows->add($row);
 * </code>
 *
 * @author Qiang Xue <qiang.xue@gmail.com>
 * @version $Revision: $  $Date: $
 * @package System.Web.UI.WebControls
 * @since 3.0
 */
class TTable extends TWebControl
{
	/**
	 * @var TTableRowCollection row collection
	 */
	private $_rows=null;

	/**
	 * @return string tag name for the table
	 */
	protected function getTagName()
	{
		return 'table';
	}

	/**
	 * Adds object parsed from template to the control.
	 * This method adds only {@link TTableRow} objects into the {@link getRows Rows} collection.
	 * All other objects are ignored.
	 * @param mixed object parsed from template
	 */
	public function addParsedObject($object)
	{
		if($object instanceof TTableRow)
			$this->getRows()->add($object);
	}

	/**
	 * Creates a style object for the control.
	 * This method creates a {@link TTableStyle} to be used by the table.
	 * @return TTableStyle control style to be used
	 */
	protected function createStyle()
	{
		return new TTableStyle;
	}

	/**
	 * Adds attributes to renderer.
	 * @param THtmlWriter the renderer
	 */
	protected function addAttributesToRender($writer)
	{
		parent::addAttributesToRender($writer);
		$border=0;
		if($this->getHasStyle())
		{
			if($this->getGridLines()!=='None')
			{
				if(($border=$this->getBorderWidth())==='')
					$border=1;
				else
					$border=(int)$border;
			}
		}
		$writer->addAttribute('border',"$border");
	}

	/**
	 * @return TTableRowCollection list of {@link TTableRow} controls
	 */
	public function getRows()
	{
		if(!$this->_rows)
			$this->_rows=new TTableRowCollection($this);
		return $this->_rows;
	}

	/**
	 * @return string table caption
	 */
	public function getCaption()
	{
		return $this->getViewState('Caption','');
	}

	/**
	 * @param string table caption
	 */
	public function setCaption($value)
	{
		$this->setViewState('Caption',$value,'');
	}

	/**
	 * @return string table caption alignment. Defaults to 'NotSet'.
	 */
	public function getCaptionAlign()
	{
		return $this->getViewState('CaptionAlign','NotSet');
	}

	/**
	 * @param string table caption alignment. Valid values include
	 * 'NotSet','Top','Bottom','Left','Right'.
	 */
	public function setCaptionAlign($value)
	{
		$this->setViewState('CaptionAlign',TPropertyValue::ensureEnum($value,'NotSet','Top','Bottom','Left','Right'),'NotSet');
	}

	/**
	 * @return integer the cellspacing for the table. Defaults to -1, meaning not set.
	 */
	public function getCellSpacing()
	{
		if($this->getHasStyle())
			return $this->getStyle()->getCellSpacing();
		else
			return -1;
	}

	/**
	 * @param integer the cellspacing for the table. Defaults to -1, meaning not set.
	 */
	public function setCellSpacing($value)
	{
		$this->getStyle()->setCellSpacing($value);
	}

	/**
	 * @return integer the cellpadding for the table. Defaults to -1, meaning not set.
	 */
	public function getCellPadding()
	{
		if($this->getHasStyle())
			return $this->getStyle()->getCellPadding();
		else
			return -1;
	}

	/**
	 * @param integer the cellpadding for the table. Defaults to -1, meaning not set.
	 */
	public function setCellPadding($value)
	{
		$this->getStyle()->setCellPadding($value);
	}

	/**
	 * @return string the horizontal alignment of the table content. Defaults to 'NotSet'.
	 */
	public function getHorizontalAlign()
	{
		if($this->getHasStyle())
			return $this->getStyle()->getHorizontalAlign();
		else
			return 'NotSet';
	}

	/**
	 * @param string the horizontal alignment of the table content.
	 * Valid values include 'NotSet', 'Justify', 'Left', 'Right', 'Center'.
	 */
	public function setHorizontalAlign($value)
	{
		$this->getStyle()->setHorizontalAlign($value);
	}

	/**
	 * @return string the grid line setting of the table. Defaults to 'None'.
	 */
	public function getGridLines()
	{
		if($this->getHasStyle())
			return $this->getStyle()->getGridLines();
		else
			return 'None';
	}

	/**
	 * Sets the grid line style of the table.
     * Valid values include 'None', 'Horizontal', 'Vertical', 'Both'.
	 * @param string the grid line setting of the table
	 */
	public function setGridLines($value)
	{
		$this->getStyle()->setGridLines($value);
	}

	/**
	 * @return string the URL of the background image for the table
	 */
	public function getBackImageUrl()
	{
		if($this->getHasStyle())
			return $this->getStyle()->getBackImageUrl();
		else
			return '';
	}

	/**
	 * Sets the URL of the background image for the table
	 * @param string the URL
	 */
	public function setBackImageUrl($value)
	{
		$this->getStyle()->setBackImageUrl($value);
	}

	/**
	 * Renders the openning tag for the table control which will render table caption if present.
	 * @param THtmlWriter the writer used for the rendering purpose
	 */
	public function renderBeginTag($writer)
	{
		parent::renderBeginTag($writer);
		if(($caption=$this->getCaption())!=='')
		{
			if(($align=$this->getCaptionAlign())!=='NotSet')
				$writer->addAttribute('align',strtolower($align));
			$writer->renderBeginTag('caption');
			$writer->write($caption);
			$writer->renderEndTag();
		}
	}

	/**
	 * Renders body contents of the table.
	 * @param THtmlWriter the writer used for the rendering purpose.
	 */
	public function renderContents($writer)
	{
		if($this->_rows)
		{
			$writer->writeLine();
			foreach($this->_rows as $row)
			{
				$row->renderControl($writer);
				$writer->writeLine();
			}
		}
	}
}

/**
 * TTableRowCollection class.
 *
 * TTableRowCollection is used to maintain a list of rows belong to a table.
 *
 * @author Qiang Xue <qiang.xue@gmail.com>
 * @version $Revision: $  $Date: $
 * @package System.Web.UI.WebControls
 * @since 3.0
 */
class TTableRowCollection extends TList
{
	/**
	 * @var mixed row collection owner
	 */
	private $_owner=null;

	/**
	 * Constructor.
	 * @param mixed row collection owner
	 */
	public function __construct($owner=null)
	{
		$this->_owner=$owner;
	}

	/**
	 * Inserts an item at the specified position.
	 * This overrides the parent implementation by performing additional
	 * operations for each newly added table row.
	 * @param integer the speicified position.
	 * @param mixed new item
	 * @throws TInvalidDataTypeException if the item to be inserted is not a TTableRow object.
	 */
	public function insertAt($index,$item)
	{
		if($item instanceof TTableRow)
		{
			parent::insertAt($index,$item);
			if($this->_owner)
				$this->_owner->getControls()->insertAt($index,$item);
		}
		else
			throw new TInvalidDataTypeException('tablerowcollection_tablerow_required');
	}

	/**
	 * Removes an item at the specified position.
	 * This overrides the parent implementation by performing additional
	 * cleanup work when removing a table row.
	 * @param integer the index of the item to be removed.
	 * @return mixed the removed item.
	 */
	public function removeAt($index)
	{
		$item=parent::removeAt($index);
		if($item instanceof TTableRow)
			$this->_owner->getControls()->remove($item);
		return $item;
	}
}

?>