审查视图

simplewind/vendor/phpoffice/phpexcel/Classes/PHPExcel/Shared/OLE/PPS.php 6.5 KB
lihan authored
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230
<?php
/* vim: set expandtab tabstop=4 shiftwidth=4: */
// +----------------------------------------------------------------------+
// | PHP Version 4                                                        |
// +----------------------------------------------------------------------+
// | Copyright (c) 1997-2002 The PHP Group                                |
// +----------------------------------------------------------------------+
// | This source file is subject to version 2.02 of the PHP license,      |
// | that is bundled with this package in the file LICENSE, and is        |
// | available at through the world-wide-web at                           |
// | http://www.php.net/license/2_02.txt.                                 |
// | If you did not receive a copy of the PHP license and are unable to   |
// | obtain it through the world-wide-web, please send a note to          |
// | license@php.net so we can mail you a copy immediately.               |
// +----------------------------------------------------------------------+
// | Author: Xavier Noguer <xnoguer@php.net>                              |
// | Based on OLE::Storage_Lite by Kawai, Takanori                        |
// +----------------------------------------------------------------------+
//
// $Id: PPS.php,v 1.7 2007/02/13 21:00:42 schmidt Exp $


/**
* Class for creating PPS's for OLE containers
*
* @author   Xavier Noguer <xnoguer@php.net>
* @category PHPExcel
* @package  PHPExcel_Shared_OLE
*/
class PHPExcel_Shared_OLE_PPS
{
	/**
	* The PPS index
	* @var integer
	*/
	public $No;

	/**
	* The PPS name (in Unicode)
	* @var string
	*/
	public $Name;

	/**
	* The PPS type. Dir, Root or File
	* @var integer
	*/
	public $Type;

	/**
	* The index of the previous PPS
	* @var integer
	*/
	public $PrevPps;

	/**
	* The index of the next PPS
	* @var integer
	*/
	public $NextPps;

	/**
	* The index of it's first child if this is a Dir or Root PPS
	* @var integer
	*/
	public $DirPps;

	/**
	* A timestamp
	* @var integer
	*/
	public $Time1st;

	/**
	* A timestamp
	* @var integer
	*/
	public $Time2nd;

	/**
	* Starting block (small or big) for this PPS's data  inside the container
	* @var integer
	*/
	public $_StartBlock;

	/**
	* The size of the PPS's data (in bytes)
	* @var integer
	*/
	public $Size;

	/**
	* The PPS's data (only used if it's not using a temporary file)
	* @var string
	*/
	public $_data;

	/**
	* Array of child PPS's (only used by Root and Dir PPS's)
	* @var array
	*/
	public $children = array();

	/**
	* Pointer to OLE container
	* @var OLE
	*/
	public $ole;

	/**
	* The constructor
	*
	* @access public
	* @param integer $No   The PPS index
	* @param string  $name The PPS name
	* @param integer $type The PPS type. Dir, Root or File
	* @param integer $prev The index of the previous PPS
	* @param integer $next The index of the next PPS
	* @param integer $dir  The index of it's first child if this is a Dir or Root PPS
	* @param integer $time_1st A timestamp
	* @param integer $time_2nd A timestamp
	* @param string  $data  The (usually binary) source data of the PPS
	* @param array   $children Array containing children PPS for this PPS
	*/
	public function __construct($No, $name, $type, $prev, $next, $dir, $time_1st, $time_2nd, $data, $children)
	{
		$this->No      = $No;
		$this->Name    = $name;
		$this->Type    = $type;
		$this->PrevPps = $prev;
		$this->NextPps = $next;
		$this->DirPps  = $dir;
		$this->Time1st = $time_1st;
		$this->Time2nd = $time_2nd;
		$this->_data      = $data;
		$this->children   = $children;
		if ($data != '') {
			$this->Size = strlen($data);
		} else {
			$this->Size = 0;
		}
	}

	/**
	* Returns the amount of data saved for this PPS
	*
	* @access public
	* @return integer The amount of data (in bytes)
	*/
	public function _DataLen()
	{
		if (!isset($this->_data)) {
			return 0;
		}
		//if (isset($this->_PPS_FILE)) {
		//	fseek($this->_PPS_FILE, 0);
		//	$stats = fstat($this->_PPS_FILE);
		//	return $stats[7];
		//} else {
			return strlen($this->_data);
		//}
	}

	/**
	* Returns a string with the PPS's WK (What is a WK?)
	*
	* @access public
	* @return string The binary string
	*/
	public function _getPpsWk()
	{
		$ret = str_pad($this->Name,64,"\x00");

		$ret .= pack("v", strlen($this->Name) + 2)  // 66
			  . pack("c", $this->Type)              // 67
			  . pack("c", 0x00) //UK                // 68
			  . pack("V", $this->PrevPps) //Prev    // 72
			  . pack("V", $this->NextPps) //Next    // 76
			  . pack("V", $this->DirPps)  //Dir     // 80
			  . "\x00\x09\x02\x00"                  // 84
			  . "\x00\x00\x00\x00"                  // 88
			  . "\xc0\x00\x00\x00"                  // 92
			  . "\x00\x00\x00\x46"                  // 96 // Seems to be ok only for Root
			  . "\x00\x00\x00\x00"                  // 100
			  . PHPExcel_Shared_OLE::LocalDate2OLE($this->Time1st)       // 108
			  . PHPExcel_Shared_OLE::LocalDate2OLE($this->Time2nd)       // 116
			  . pack("V", isset($this->_StartBlock)?
						$this->_StartBlock:0)        // 120
			  . pack("V", $this->Size)               // 124
			  . pack("V", 0);                        // 128
		return $ret;
	}

	/**
	* Updates index and pointers to previous, next and children PPS's for this
	* PPS. I don't think it'll work with Dir PPS's.
	*
	* @access public
	* @param array &$raList Reference to the array of PPS's for the whole OLE
	*                          container
	* @return integer          The index for this PPS
	*/
	public static function _savePpsSetPnt(&$raList, $to_save, $depth = 0)
	{
		if ( !is_array($to_save) || (empty($to_save)) ) {
			return 0xFFFFFFFF;
		} elseif( count($to_save) == 1 ) {
			$cnt = count($raList);
			// If the first entry, it's the root... Don't clone it!
			$raList[$cnt] = ( $depth == 0 ) ? $to_save[0] : clone $to_save[0];
			$raList[$cnt]->No = $cnt;
			$raList[$cnt]->PrevPps = 0xFFFFFFFF;
			$raList[$cnt]->NextPps = 0xFFFFFFFF;
			$raList[$cnt]->DirPps  = self::_savePpsSetPnt($raList, @$raList[$cnt]->children, $depth++);
		} else {
			$iPos  = floor(count($to_save) / 2);
			$aPrev = array_slice($to_save, 0, $iPos);
			$aNext = array_slice($to_save, $iPos + 1);
			$cnt   = count($raList);
			// If the first entry, it's the root... Don't clone it!
			$raList[$cnt] = ( $depth == 0 ) ? $to_save[$iPos] : clone $to_save[$iPos];
			$raList[$cnt]->No = $cnt;
			$raList[$cnt]->PrevPps = self::_savePpsSetPnt($raList, $aPrev, $depth++);
			$raList[$cnt]->NextPps = self::_savePpsSetPnt($raList, $aNext, $depth++);
			$raList[$cnt]->DirPps  = self::_savePpsSetPnt($raList, @$raList[$cnt]->children, $depth++);

		}
		return $cnt;
	}
}