/branches/v1.6.1/Classes/PHPExcel/Worksheet/BaseDrawing.php

<?php

/**

 * PHPExcel

 *

 * Copyright (c) 2006 - 2008 PHPExcel

 *

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Lesser General Public

 * License as published by the Free Software Foundation; either

 * version 2.1 of the License, or (at your option) any later version.

 * 

 * This library is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * Lesser General Public License for more details.

 * 

 * You should have received a copy of the GNU Lesser General Public

 * License along with this library; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA

 *

 * @category   PHPExcel

 * @package    PHPExcel_Worksheet

 * @copyright  Copyright (c) 2006 - 2008 PHPExcel (http://www.codeplex.com/PHPExcel)

 * @license    http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt	LGPL

 * @version    ##VERSION##, ##DATE##

 */





/** PHPExcel_IComparable */

require_once 'PHPExcel/IComparable.php';



/** PHPExcel_Worksheet */

require_once 'PHPExcel/Worksheet.php';



/** PHPExcel_Worksheet_Drawing_Shadow */

require_once 'PHPExcel/Worksheet/Drawing/Shadow.php';



/**

 * PHPExcel_Worksheet_BaseDrawing

 *

 * @category   PHPExcel

 * @package    PHPExcel_Worksheet

 * @copyright  Copyright (c) 2006 - 2008 PHPExcel (http://www.codeplex.com/PHPExcel)

 */

class PHPExcel_Worksheet_BaseDrawing implements PHPExcel_IComparable

{		

	/**

	 * Name

	 *

	 * @var string

	 */

	protected $_name;

	

	/**

	 * Description

	 *

	 * @var string

	 */

	protected $_description;

	

	/**

	 * Worksheet

	 *

	 * @var PHPExcel_Worksheet

	 */

	protected $_worksheet;

	

	/**

	 * Coordinates

	 *

	 * @var string

	 */

	protected $_coordinates;

	

	/**

	 * Offset X

	 *

	 * @var int

	 */

	protected $_offsetX;

	

	/**

	 * Offset Y

	 *

	 * @var int

	 */

	protected $_offsetY;

	

	/**

	 * Width

	 *

	 * @var int

	 */

	protected $_width;

	

	/**

	 * Height

	 *

	 * @var int

	 */

	protected $_height;

	

	/**

	 * Proportional resize

	 *

	 * @var boolean

	 */

	protected $_resizeProportional;

	

	/**

	 * Rotation

	 *

	 * @var int

	 */

	protected $_rotation;

	

	/**

	 * Shadow

	 *

	 * @var PHPExcel_Worksheet_Drawing_Shadow

	 */

	protected $_shadow;	

	

    /**

     * Create a new PHPExcel_Worksheet_BaseDrawing

     */

    public function __construct()

    {

    	// Initialise values

    	$this->_name				= '';

    	$this->_description			= '';

    	$this->_worksheet			= null;

    	$this->_coordinates			= 'A1';

    	$this->_offsetX				= 0;

    	$this->_offsetY				= 0;

    	$this->_width				= 0;

    	$this->_height				= 0;

    	$this->_resizeProportional	= true;

    	$this->_rotation			= 0;

    	$this->_shadow				= new PHPExcel_Worksheet_Drawing_Shadow();

    }

       

    /**

     * Get Name

     *

     * @return string

     */

    public function getName() {

    	return $this->_name;

    }

    

    /**

     * Set Name

     *

     * @param string $pValue

     */

    public function setName($pValue = '') {

    	$this->_name = $pValue;

    }

    

    /**

     * Get Description

     *

     * @return string

     */

    public function getDescription() {

    	return $this->_description;

    }

    

    /**

     * Set Description

     *

     * @param string $pValue

     */

    public function setDescription($pValue = '') {

    	$this->_description = $pValue;

    }



    /**

     * Get Worksheet

     *

     * @return PHPExcel_Worksheet

     */

    public function getWorksheet() {

    	return $this->_worksheet;

    }

    

    /**

     * Set Worksheet

     *

     * @param 	PHPExcel_Worksheet 	$pValue

     * @param 	bool				$pOverrideOld	If a Worksheet has already been assigned, overwrite it and remove image from old Worksheet?

     * @throws 	Exception

     */

    public function setWorksheet(PHPExcel_Worksheet $pValue = null, $pOverrideOld = false) {

    	if (is_null($this->_worksheet)) {

    		// Add drawing to PHPExcel_Worksheet

	    	$this->_worksheet = $pValue;

	    	$this->_worksheet->getCell($this->_coordinates);

	    	$this->_worksheet->getDrawingCollection()->append($this);

    	} else {

    		if ($pOverrideOld) {

    			// Remove drawing from old PHPExcel_Worksheet

    			$iterator = $this->_worksheet->getDrawingCollection()->getIterator();

    				

    			while ($iterator->valid()) {

    				if ($iterator->current()->getHashCode() == $this->getHashCode()) {

    					$this->_worksheet->getDrawingCollection()->offsetUnset( $iterator->key() );

    					$this->_worksheet = null;

    					break;

    				}

    			}

    				

    			// Set new PHPExcel_Worksheet

    			$this->setWorksheet($pValue);

    		} else {

    			throw new Exception("A PHPExcel_Worksheet has already been assigned. Drawings can only exist on one PHPExcel_Worksheet.");

    		}

    	}

    }

    

    /**

     * Get Coordinates

     *

     * @return string

     */

    public function getCoordinates() {

    	return $this->_coordinates;

    }    

    

    /**

     * Set Coordinates

     *

     * @param string $pValue

     */

    public function setCoordinates($pValue = 'A1') {

    	$this->_coordinates = $pValue;

    }

    

    /**

     * Get OffsetX

     *

     * @return int

     */

    public function getOffsetX() {

    	return $this->_offsetX;

    }

    

    /**

     * Set OffsetX

     *

     * @param int $pValue

     */

    public function setOffsetX($pValue = 0) {

    	$this->_offsetX = $pValue;

    }

    

    /**

     * Get OffsetY

     *

     * @return int

     */

    public function getOffsetY() {

    	return $this->_offsetY;

    }

    

    /**

     * Set OffsetY

     *

     * @param int $pValue

     */

    public function setOffsetY($pValue = 0) {

    	$this->_offsetY = $pValue;

    }

    

    /**

     * Get Width

     *

     * @return int

     */

    public function getWidth() {

    	return $this->_width;

    }

    

    /**

     * Set Width

     *

     * @param int $pValue

     */

    public function setWidth($pValue = 0) {

    	// Resize proportional?

    	if ($this->_resizeProportional && $pValue != 0) {

    		$ratio = $this->_width / $this->_height;    		

    		$this->_height = round($ratio * $pValue);

    	}

    	

    	// Set width

    	$this->_width = $pValue;

    }

    

    /**

     * Get Height

     *

     * @return int

     */

    public function getHeight() {

    	return $this->_height;

    }

    

    /**

     * Set Height

     *

     * @param int $pValue

     */

    public function setHeight($pValue = 0) {

    	// Resize proportional?

    	if ($this->_resizeProportional && $pValue != 0) {

    		$ratio = $this->_width / $this->_height;   		

    		$this->_width = round($ratio * $pValue);

    	}

    	

    	// Set height

    	$this->_height = $pValue;

    }

    

    /**

     * Set width and height with proportional resize

     * @author Vincent@luo MSN:kele_100@hotmail.com

     * @param int $width

     * @param int $height

     * @example $objDrawing->setResizeProportional(true);

     * @example $objDrawing->setWidthAndHeight(160,120);

     */

	public function setWidthAndHeight($width = 0, $height = 0) {

		$xratio = $width / $this->_width;

		$yratio = $height / $this->_height;

		if ($this->_resizeProportional && !($width == 0 || $height == 0)) {

			if (($xratio * $this->_height) < $height) {

				$this->_height = ceil($xratio * $this->_height);

				$this->_width  = $width;

			} else {

				$this->_width	= ceil($yratio * $this->_width);

				$this->_height	= $height;

			}

		}

	}

    

    /**

     * Get ResizeProportional

     *

     * @return boolean

     */

    public function getResizeProportional() {

    	return $this->_resizeProportional;

    }

    

    /**

     * Set ResizeProportional

     *

     * @param boolean $pValue

     */

    public function setResizeProportional($pValue = true) {

    	$this->_resizeProportional = $pValue;

    }

    

    /**

     * Get Rotation

     *

     * @return int

     */

    public function getRotation() {

    	return $this->_rotation;

    }

    

    /**

     * Set Rotation

     *

     * @param int $pValue

     */

    public function setRotation($pValue = 0) {

    	$this->_rotation = $pValue;

    }

    

    /**

     * Get Shadow

     *

     * @return PHPExcel_Worksheet_Drawing_Shadow

     */

    public function getShadow() {

    	return $this->_shadow;

    }

    

    /**

     * Set Shadow

     *

     * @param 	PHPExcel_Worksheet_Drawing_Shadow $pValue

     * @throws 	Exception

     */

    public function setShadow(PHPExcel_Worksheet_Drawing_Shadow $pValue = null) {

   		$this->_shadow = $pValue;

    }



	/**

	 * Get hash code

	 *

	 * @return string	Hash code

	 */	

	public function getHashCode() {

    	return md5(

    		  $this->_name

    		. $this->_description

    		. $this->_worksheet->getHashCode()

    		. $this->_coordinates

    		. $this->_offsetX

    		. $this->_offsetY

    		. $this->_width

    		. $this->_height

    		. $this->_rotation

    		. $this->_shadow->getHashCode()

    		. __CLASS__

    	);

    }

        

	/**

	 * Implement PHP __clone to create a deep clone, not just a shallow copy.

	 */

	public function __clone() {

		$vars = get_object_vars($this);

		foreach ($vars as $key => $value) {

			if (is_object($value)) {

				$this->$key = clone $value;

			} else {

				$this->$key = $value;

			}

		}

	}

}