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/PHPExcel/Shared/OLE/PPS.php

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PHP | 230 lines | 88 code | 20 blank | 122 comment | 10 complexity | 7ecb0c1313a804acf7cca3bfc2af5371 MD5 | raw file
  1<?php
  2/* vim: set expandtab tabstop=4 shiftwidth=4: */
  3// +----------------------------------------------------------------------+
  4// | PHP Version 4                                                        |
  5// +----------------------------------------------------------------------+
  6// | Copyright (c) 1997-2002 The PHP Group                                |
  7// +----------------------------------------------------------------------+
  8// | This source file is subject to version 2.02 of the PHP license,      |
  9// | that is bundled with this package in the file LICENSE, and is        |
 10// | available at through the world-wide-web at                           |
 11// | http://www.php.net/license/2_02.txt.                                 |
 12// | If you did not receive a copy of the PHP license and are unable to   |
 13// | obtain it through the world-wide-web, please send a note to          |
 14// | license@php.net so we can mail you a copy immediately.               |
 15// +----------------------------------------------------------------------+
 16// | Author: Xavier Noguer <xnoguer@php.net>                              |
 17// | Based on OLE::Storage_Lite by Kawai, Takanori                        |
 18// +----------------------------------------------------------------------+
 19//
 20// $Id: PPS.php,v 1.7 2007/02/13 21:00:42 schmidt Exp $
 21
 22
 23/**
 24* Class for creating PPS's for OLE containers
 25*
 26* @author   Xavier Noguer <xnoguer@php.net>
 27* @category PHPExcel
 28* @package  PHPExcel_Shared_OLE
 29*/
 30class PHPExcel_Shared_OLE_PPS
 31{
 32	/**
 33	* The PPS index
 34	* @var integer
 35	*/
 36	public $No;
 37
 38	/**
 39	* The PPS name (in Unicode)
 40	* @var string
 41	*/
 42	public $Name;
 43
 44	/**
 45	* The PPS type. Dir, Root or File
 46	* @var integer
 47	*/
 48	public $Type;
 49
 50	/**
 51	* The index of the previous PPS
 52	* @var integer
 53	*/
 54	public $PrevPps;
 55
 56	/**
 57	* The index of the next PPS
 58	* @var integer
 59	*/
 60	public $NextPps;
 61
 62	/**
 63	* The index of it's first child if this is a Dir or Root PPS
 64	* @var integer
 65	*/
 66	public $DirPps;
 67
 68	/**
 69	* A timestamp
 70	* @var integer
 71	*/
 72	public $Time1st;
 73
 74	/**
 75	* A timestamp
 76	* @var integer
 77	*/
 78	public $Time2nd;
 79
 80	/**
 81	* Starting block (small or big) for this PPS's data  inside the container
 82	* @var integer
 83	*/
 84	public $_StartBlock;
 85
 86	/**
 87	* The size of the PPS's data (in bytes)
 88	* @var integer
 89	*/
 90	public $Size;
 91
 92	/**
 93	* The PPS's data (only used if it's not using a temporary file)
 94	* @var string
 95	*/
 96	public $_data;
 97
 98	/**
 99	* Array of child PPS's (only used by Root and Dir PPS's)
100	* @var array
101	*/
102	public $children = array();
103
104	/**
105	* Pointer to OLE container
106	* @var OLE
107	*/
108	public $ole;
109
110	/**
111	* The constructor
112	*
113	* @access public
114	* @param integer $No   The PPS index
115	* @param string  $name The PPS name
116	* @param integer $type The PPS type. Dir, Root or File
117	* @param integer $prev The index of the previous PPS
118	* @param integer $next The index of the next PPS
119	* @param integer $dir  The index of it's first child if this is a Dir or Root PPS
120	* @param integer $time_1st A timestamp
121	* @param integer $time_2nd A timestamp
122	* @param string  $data  The (usually binary) source data of the PPS
123	* @param array   $children Array containing children PPS for this PPS
124	*/
125	public function __construct($No, $name, $type, $prev, $next, $dir, $time_1st, $time_2nd, $data, $children)
126	{
127		$this->No      = $No;
128		$this->Name    = $name;
129		$this->Type    = $type;
130		$this->PrevPps = $prev;
131		$this->NextPps = $next;
132		$this->DirPps  = $dir;
133		$this->Time1st = $time_1st;
134		$this->Time2nd = $time_2nd;
135		$this->_data      = $data;
136		$this->children   = $children;
137		if ($data != '') {
138			$this->Size = strlen($data);
139		} else {
140			$this->Size = 0;
141		}
142	}
143
144	/**
145	* Returns the amount of data saved for this PPS
146	*
147	* @access public
148	* @return integer The amount of data (in bytes)
149	*/
150	public function _DataLen()
151	{
152		if (!isset($this->_data)) {
153			return 0;
154		}
155		//if (isset($this->_PPS_FILE)) {
156		//	fseek($this->_PPS_FILE, 0);
157		//	$stats = fstat($this->_PPS_FILE);
158		//	return $stats[7];
159		//} else {
160			return strlen($this->_data);
161		//}
162	}
163
164	/**
165	* Returns a string with the PPS's WK (What is a WK?)
166	*
167	* @access public
168	* @return string The binary string
169	*/
170	public function _getPpsWk()
171	{
172		$ret = str_pad($this->Name,64,"\x00");
173
174		$ret .= pack("v", strlen($this->Name) + 2)  // 66
175			  . pack("c", $this->Type)              // 67
176			  . pack("c", 0x00) //UK                // 68
177			  . pack("V", $this->PrevPps) //Prev    // 72
178			  . pack("V", $this->NextPps) //Next    // 76
179			  . pack("V", $this->DirPps)  //Dir     // 80
180			  . "\x00\x09\x02\x00"                  // 84
181			  . "\x00\x00\x00\x00"                  // 88
182			  . "\xc0\x00\x00\x00"                  // 92
183			  . "\x00\x00\x00\x46"                  // 96 // Seems to be ok only for Root
184			  . "\x00\x00\x00\x00"                  // 100
185			  . PHPExcel_Shared_OLE::LocalDate2OLE($this->Time1st)       // 108
186			  . PHPExcel_Shared_OLE::LocalDate2OLE($this->Time2nd)       // 116
187			  . pack("V", isset($this->_StartBlock)?
188						$this->_StartBlock:0)        // 120
189			  . pack("V", $this->Size)               // 124
190			  . pack("V", 0);                        // 128
191		return $ret;
192	}
193
194	/**
195	* Updates index and pointers to previous, next and children PPS's for this
196	* PPS. I don't think it'll work with Dir PPS's.
197	*
198	* @access public
199	* @param array &$raList Reference to the array of PPS's for the whole OLE
200	*                          container
201	* @return integer          The index for this PPS
202	*/
203	public static function _savePpsSetPnt(&$raList, $to_save, $depth = 0)
204	{
205		if ( !is_array($to_save) || (empty($to_save)) ) {
206			return 0xFFFFFFFF;
207		} elseif( count($to_save) == 1 ) {
208			$cnt = count($raList);
209			// If the first entry, it's the root... Don't clone it!
210			$raList[$cnt] = ( $depth == 0 ) ? $to_save[0] : clone $to_save[0];
211			$raList[$cnt]->No = $cnt;
212			$raList[$cnt]->PrevPps = 0xFFFFFFFF;
213			$raList[$cnt]->NextPps = 0xFFFFFFFF;
214			$raList[$cnt]->DirPps  = self::_savePpsSetPnt($raList, @$raList[$cnt]->children, $depth++);
215		} else {
216			$iPos  = floor(count($to_save) / 2);
217			$aPrev = array_slice($to_save, 0, $iPos);
218			$aNext = array_slice($to_save, $iPos + 1);
219			$cnt   = count($raList);
220			// If the first entry, it's the root... Don't clone it!
221			$raList[$cnt] = ( $depth == 0 ) ? $to_save[$iPos] : clone $to_save[$iPos];
222			$raList[$cnt]->No = $cnt;
223			$raList[$cnt]->PrevPps = self::_savePpsSetPnt($raList, $aPrev, $depth++);
224			$raList[$cnt]->NextPps = self::_savePpsSetPnt($raList, $aNext, $depth++);
225			$raList[$cnt]->DirPps  = self::_savePpsSetPnt($raList, @$raList[$cnt]->children, $depth++);
226
227		}
228		return $cnt;
229	}
230}