<?php
/**
 *	PHPExcel
 *
 *	Copyright (c) 2006 - 2011 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
 *	@copyright	Copyright (c) 2006 - 2011 PHPExcel (http://www.codeplex.com/PHPExcel)
 *	@license	http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt	LGPL
 *	@version	1.7.6, 2011-02-27
 */


/**
 * PHPExcel_DocumentProperties
 *
 * @category	PHPExcel
 * @package		PHPExcel
 * @copyright	Copyright (c) 2006 - 2011 PHPExcel (http://www.codeplex.com/PHPExcel)
 */
class PHPExcel_DocumentProperties
{
	/** constants */
	const PROPERTY_TYPE_BOOLEAN		= 'b';
	const PROPERTY_TYPE_INTEGER		= 'i';
	const PROPERTY_TYPE_FLOAT		= 'f';
	const PROPERTY_TYPE_DATE		= 'd';
	const PROPERTY_TYPE_STRING		= 's';
	const PROPERTY_TYPE_UNKNOWN		= 'u';


	/**
	 * Creator
	 *
	 * @var	string
	 */
	private $_creator	= 'Unknown Creator';

	/**
	 * LastModifiedBy
	 *
	 * @var	string
	 */
	private $_lastModifiedBy;

	/**
	 * Created
	 *
	 * @var	datetime
	 */
	private $_created;

	/**
	 * Modified
	 *
	 * @var	datetime
	 */
	private $_modified;

	/**
	 * Title
	 *
	 * @var	string
	 */
	private $_title			= 'Untitled Spreadsheet';

	/**
	 * Description
	 *
	 * @var	string
	 */
	private $_description	= '';

	/**
	 * Subject
	 *
	 * @var	string
	 */
	private $_subject		= '';

	/**
	 * Keywords
	 *
	 * @var	string
	 */
	private $_keywords		= '';

	/**
	 * Category
	 *
	 * @var	string
	 */
	private $_category		= '';

	/**
	 * Manager
	 *
	 * @var	string
	 */
	private $_manager		= '';

	/**
	 * Company
	 *
	 * @var	string
	 */
	private $_company		= 'Microsoft Corporation';

	/**
	 * Custom Properties
	 *
	 * @var	string
	 */
	private $_customProperties	= array();


	/**
	 * Create a new PHPExcel_DocumentProperties
	 */
	public function __construct()
	{
		// Initialise values
		$this->_lastModifiedBy	= $this->_creator;
		$this->_created		= time();
		$this->_modified	= time();
	}

	/**
	 * Get Creator
	 *
	 * @return	string
	 */
	public function getCreator() {
		return $this->_creator;
	}

	/**
	 * Set Creator
	 *
	 * @param	string	$pValue
	 * @return	PHPExcel_DocumentProperties
	 */
	public function setCreator($pValue = '') {
		$this->_creator = $pValue;
		return $this;
	}

	/**
	 * Get Last Modified By
	 *
	 * @return	string
	 */
	public function getLastModifiedBy() {
		return $this->_lastModifiedBy;
	}

	/**
	 * Set Last Modified By
	 *
	 * @param	string	$pValue
	 * @return	PHPExcel_DocumentProperties
	 */
	public function setLastModifiedBy($pValue = '') {
		$this->_lastModifiedBy = $pValue;
		return $this;
	}

	/**
	 * Get Created
	 *
	 * @return	datetime
	 */
	public function getCreated() {
		return $this->_created;
	}

	/**
	 * Set Created
	 *
	 * @param	datetime	$pValue
	 * @return	PHPExcel_DocumentProperties
	 */
	public function setCreated($pValue = null) {
		if (is_null($pValue)) {
			$pValue = time();
		} elseif (is_string($pValue)) {
			if (is_numeric($pValue)) {
				$pValue = intval($pValue);
			} else {
				$pValue = strtotime($pValue);
			}
		}

		$this->_created = $pValue;
		return $this;
	}

	/**
	 * Get Modified
	 *
	 * @return	datetime
	 */
	public function getModified() {
		return $this->_modified;
	}

	/**
	 * Set Modified
	 *
	 * @param	datetime	$pValue
	 * @return	PHPExcel_DocumentProperties
	 */
	public function setModified($pValue = null) {
		if (is_null($pValue)) {
			$pValue = time();
		} elseif (is_string($pValue)) {
			if (is_numeric($pValue)) {
				$pValue = intval($pValue);
			} else {
				$pValue = strtotime($pValue);
			}
		}

		$this->_modified = $pValue;
		return $this;
	}

	/**
	 * Get Title
	 *
	 * @return	string
	 */
	public function getTitle() {
		return $this->_title;
	}

	/**
	 * Set Title
	 *
	 * @param	string	$pValue
	 * @return	PHPExcel_DocumentProperties
	 */
	public function setTitle($pValue = '') {
		$this->_title = $pValue;
		return $this;
	}

	/**
	 * Get Description
	 *
	 * @return	string
	 */
	public function getDescription() {
		return $this->_description;
	}

	/**
	 * Set Description
	 *
	 * @param	string	$pValue
	 * @return	PHPExcel_DocumentProperties
	 */
	public function setDescription($pValue = '') {
		$this->_description = $pValue;
		return $this;
	}

	/**
	 * Get Subject
	 *
	 * @return	string
	 */
	public function getSubject() {
		return $this->_subject;
	}

	/**
	 * Set Subject
	 *
	 * @param	string	$pValue
	 * @return	PHPExcel_DocumentProperties
	 */
	public function setSubject($pValue = '') {
		$this->_subject = $pValue;
		return $this;
	}

	/**
	 * Get Keywords
	 *
	 * @return	string
	 */
	public function getKeywords() {
		return $this->_keywords;
	}

	/**
	 * Set Keywords
	 *
	 * @param	string	$pValue
	 * @return	PHPExcel_DocumentProperties
	 */
	public function setKeywords($pValue = '') {
		$this->_keywords = $pValue;
		return $this;
	}

	/**
	 * Get Category
	 *
	 * @return	string
	 */
	public function getCategory() {
		return $this->_category;
	}

	/**
	 * Set Category
	 *
	 * @param	string	$pValue
	 * @return	PHPExcel_DocumentProperties
	 */
	public function setCategory($pValue = '') {
		$this->_category = $pValue;
		return $this;
	}

	/**
	 * Get Company
	 *
	 * @return	string
	 */
	public function getCompany() {
		return $this->_company;
	}

	/**
	 * Set Company
	 *
	 * @param	string	$pValue
	 * @return	PHPExcel_DocumentProperties
	 */
	public function setCompany($pValue = '') {
		$this->_company = $pValue;
		return $this;
	}

	/**
	 * Get Manager
	 *
	 * @return	string
	 */
	public function getManager() {
		return $this->_manager;
	}

	/**
	 * Set Manager
	 *
	 * @param	string	$pValue
	 * @return	PHPExcel_DocumentProperties
	 */
	public function setManager($pValue = '') {
		$this->_manager = $pValue;
		return $this;
	}

	/**
	 * Get a List of Custom Property Names
	 *
	 * @return	array of string
	 */
	public function getCustomProperties() {
		return array_keys($this->_customProperties);
	}

	/**
	 * Check if a Custom Property is defined
	 *
	 * @param	string	$propertyName
	 * @return	boolean
	 */
	public function isCustomPropertySet($propertyName) {
		return isset($this->_customProperties[$propertyName]);
	}

	/**
	 * Get a Custom Property Value
	 *
	 * @param	string	$propertyName
	 * @return	string
	 */
	public function getCustomPropertyValue($propertyName) {
		if (isset($this->_customProperties[$propertyName])) {
			return $this->_customProperties[$propertyName]['value'];
		}

	}

	/**
	 * Get a Custom Property Type
	 *
	 * @param	string	$propertyName
	 * @return	string
	 */
	public function getCustomPropertyType($propertyName) {
		if (isset($this->_customProperties[$propertyName])) {
			return $this->_customProperties[$propertyName]['type'];
		}

	}

	/**
	 * Set a Custom Property
	 *
	 * @param	string	$propertyName
	 * @param	mixed	$propertyValue
	 * @param	string	$propertyType
	 *						'i'	: Integer
	 *						'f' : Floating Point
	 *						's' : String
	 *						'd' : Date/Time
	 *						'b' : Boolean
	 * @return	PHPExcel_DocumentProperties
	 */
	public function setCustomProperty($propertyName,$propertyValue='',$propertyType=NULL) {
		if ((is_null($propertyType)) || (!in_array($propertyType,array(self::PROPERTY_TYPE_INTEGER,
																	   self::PROPERTY_TYPE_FLOAT,
																	   self::PROPERTY_TYPE_STRING,
																	   self::PROPERTY_TYPE_DATE,
																	   self::PROPERTY_TYPE_BOOLEAN)))) {
			if (is_null($propertyValue)) {
				$propertyType = self::PROPERTY_TYPE_STRING;
			} elseif (is_float($propertyValue)) {
				$propertyType = self::PROPERTY_TYPE_FLOAT;
			} elseif(is_int($propertyValue)) {
				$propertyType = self::PROPERTY_TYPE_INTEGER;
			} elseif (is_bool($propertyValue)) {
				$propertyType = self::PROPERTY_TYPE_BOOLEAN;
			} else {
				$propertyType = self::PROPERTY_TYPE_STRING;
			}
		}

		$this->_customProperties[$propertyName] = array('value' => $propertyValue, 'type' => $propertyType);
		return $this;
	}

	/**
	 * 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;
			}
		}
	}

	public static function convertProperty($propertyValue,$propertyType) {
		switch ($propertyType) {
			case 'empty'	:	//	Empty
				return '';
				break;
			case 'null'		:	//	Null
				return NULL;
				break;
			case 'i1'		:	//	1-Byte Signed Integer
			case 'i2'		:	//	2-Byte Signed Integer
			case 'i4'		:	//	4-Byte Signed Integer
			case 'i8'		:	//	8-Byte Signed Integer
			case 'int'		:	//	Integer
				return (int) $propertyValue;
				break;
			case 'ui1'		:	//	1-Byte Unsigned Integer
			case 'ui2'		:	//	2-Byte Unsigned Integer
			case 'ui4'		:	//	4-Byte Unsigned Integer
			case 'ui8'		:	//	8-Byte Unsigned Integer
			case 'uint'		:	//	Unsigned Integer
				return abs((int) $propertyValue);
				break;
			case 'r4'		:	//	4-Byte Real Number
			case 'r8'		:	//	8-Byte Real Number
			case 'decimal'	:	//	Decimal
				return (float) $propertyValue;
				break;
			case 'lpstr'	:	//	LPSTR
			case 'lpwstr'	:	//	LPWSTR
			case 'bstr'		:	//	Basic String
				return $propertyValue;
				break;
			case 'date'		:	//	Date and Time
			case 'filetime'	:	//	File Time
				return strtotime($propertyValue);
				break;
			case 'bool'		:	//	Boolean
				return ($propertyValue == 'true') ? True : False;
				break;
			case 'cy'		:	//	Currency
			case 'error'	:	//	Error Status Code
			case 'vector'	:	//	Vector
			case 'array'	:	//	Array
			case 'blob'		:	//	Binary Blob
			case 'oblob'	:	//	Binary Blob Object
			case 'stream'	:	//	Binary Stream
			case 'ostream'	:	//	Binary Stream Object
			case 'storage'	:	//	Binary Storage
			case 'ostorage'	:	//	Binary Storage Object
			case 'vstream'	:	//	Binary Versioned Stream
			case 'clsid'	:	//	Class ID
			case 'cf'		:	//	Clipboard Data
				return $propertyValue;
				break;
		}
		return $propertyValue;
	}

	public static function convertPropertyType($propertyType) {
		switch ($propertyType) {
			case 'i1'		:	//	1-Byte Signed Integer
			case 'i2'		:	//	2-Byte Signed Integer
			case 'i4'		:	//	4-Byte Signed Integer
			case 'i8'		:	//	8-Byte Signed Integer
			case 'int'		:	//	Integer
			case 'ui1'		:	//	1-Byte Unsigned Integer
			case 'ui2'		:	//	2-Byte Unsigned Integer
			case 'ui4'		:	//	4-Byte Unsigned Integer
			case 'ui8'		:	//	8-Byte Unsigned Integer
			case 'uint'		:	//	Unsigned Integer
				return self::PROPERTY_TYPE_INTEGER;
				break;
			case 'r4'		:	//	4-Byte Real Number
			case 'r8'		:	//	8-Byte Real Number
			case 'decimal'	:	//	Decimal
				return self::PROPERTY_TYPE_FLOAT;
				break;
			case 'empty'	:	//	Empty
			case 'null'		:	//	Null
			case 'lpstr'	:	//	LPSTR
			case 'lpwstr'	:	//	LPWSTR
			case 'bstr'		:	//	Basic String
				return self::PROPERTY_TYPE_STRING;
				break;
			case 'date'		:	//	Date and Time
			case 'filetime'	:	//	File Time
				return self::PROPERTY_TYPE_DATE;
				break;
			case 'bool'		:	//	Boolean
				return self::PROPERTY_TYPE_BOOLEAN;
				break;
			case 'cy'		:	//	Currency
			case 'error'	:	//	Error Status Code
			case 'vector'	:	//	Vector
			case 'array'	:	//	Array
			case 'blob'		:	//	Binary Blob
			case 'oblob'	:	//	Binary Blob Object
			case 'stream'	:	//	Binary Stream
			case 'ostream'	:	//	Binary Stream Object
			case 'storage'	:	//	Binary Storage
			case 'ostorage'	:	//	Binary Storage Object
			case 'vstream'	:	//	Binary Versioned Stream
			case 'clsid'	:	//	Class ID
			case 'cf'		:	//	Clipboard Data
				return self::PROPERTY_TYPE_UNKNOWN;
				break;
		}
		return self::PROPERTY_TYPE_UNKNOWN;
	}

}