ReferenceHelper.php 39.0 KB
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922
<?php
/**
 * PHPExcel
 *
 * Copyright (c) 2006 - 2014 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 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
 * @license	http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt	LGPL
 * @version	##VERSION##, ##DATE##
 */


/**
 * PHPExcel_ReferenceHelper (Singleton)
 *
 * @category   PHPExcel
 * @package	PHPExcel
 * @copyright  Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
 */
class PHPExcel_ReferenceHelper
{
	/**	Constants				*/
	/**	Regular Expressions		*/
	const REFHELPER_REGEXP_CELLREF		= '((\w*|\'[^!]*\')!)?(?<![:a-z\$])(\$?[a-z]{1,3}\$?\d+)(?=[^:!\d\'])';
	const REFHELPER_REGEXP_CELLRANGE	= '((\w*|\'[^!]*\')!)?(\$?[a-z]{1,3}\$?\d+):(\$?[a-z]{1,3}\$?\d+)';
	const REFHELPER_REGEXP_ROWRANGE		= '((\w*|\'[^!]*\')!)?(\$?\d+):(\$?\d+)';
	const REFHELPER_REGEXP_COLRANGE		= '((\w*|\'[^!]*\')!)?(\$?[a-z]{1,3}):(\$?[a-z]{1,3})';

	/**
	 * Instance of this class
	 *
	 * @var PHPExcel_ReferenceHelper
	 */
	private static $_instance;

	/**
	 * Get an instance of this class
	 *
	 * @return PHPExcel_ReferenceHelper
	 */
	public static function getInstance() {
		if (!isset(self::$_instance) || (self::$_instance === NULL)) {
			self::$_instance = new PHPExcel_ReferenceHelper();
		}

		return self::$_instance;
	}

	/**
	 * Create a new PHPExcel_ReferenceHelper
	 */
	protected function __construct() {
	}

	/**
	 * Compare two column addresses
	 * Intended for use as a Callback function for sorting column addresses by column
	 *
	 * @param   string   $a  First column to test (e.g. 'AA')
	 * @param   string   $b  Second column to test (e.g. 'Z')
	 * @return  integer
	 */
	public static function columnSort($a, $b) {
		return strcasecmp(strlen($a) . $a, strlen($b) . $b);
	}

	/**
	 * Compare two column addresses
	 * Intended for use as a Callback function for reverse sorting column addresses by column
	 *
	 * @param   string   $a  First column to test (e.g. 'AA')
	 * @param   string   $b  Second column to test (e.g. 'Z')
	 * @return  integer
	 */
	public static function columnReverseSort($a, $b) {
		return 1 - strcasecmp(strlen($a) . $a, strlen($b) . $b);
	}

	/**
	 * Compare two cell addresses
	 * Intended for use as a Callback function for sorting cell addresses by column and row
	 *
	 * @param   string   $a  First cell to test (e.g. 'AA1')
	 * @param   string   $b  Second cell to test (e.g. 'Z1')
	 * @return  integer
	 */
	public static function cellSort($a, $b) {
		sscanf($a,'%[A-Z]%d', $ac, $ar);
		sscanf($b,'%[A-Z]%d', $bc, $br);

		if ($ar == $br) {
			return strcasecmp(strlen($ac) . $ac, strlen($bc) . $bc);
		}
		return ($ar < $br) ? -1 : 1;
	}

	/**
	 * Compare two cell addresses
	 * Intended for use as a Callback function for sorting cell addresses by column and row
	 *
	 * @param   string   $a  First cell to test (e.g. 'AA1')
	 * @param   string   $b  Second cell to test (e.g. 'Z1')
	 * @return  integer
	 */
	public static function cellReverseSort($a, $b) {
		sscanf($a,'%[A-Z]%d', $ac, $ar);
		sscanf($b,'%[A-Z]%d', $bc, $br);

		if ($ar == $br) {
			return 1 - strcasecmp(strlen($ac) . $ac, strlen($bc) . $bc);
		}
		return ($ar < $br) ? 1 : -1;
	}

	/**
	 * Test whether a cell address falls within a defined range of cells
	 *
	 * @param   string     $cellAddress        Address of the cell we're testing
	 * @param   integer    $beforeRow          Number of the row we're inserting/deleting before
	 * @param   integer    $pNumRows           Number of rows to insert/delete (negative values indicate deletion)
	 * @param   integer    $beforeColumnIndex  Index number of the column we're inserting/deleting before
	 * @param   integer    $pNumCols           Number of columns to insert/delete (negative values indicate deletion)
	 * @return  boolean
	 */
	private static function cellAddressInDeleteRange($cellAddress, $beforeRow, $pNumRows, $beforeColumnIndex, $pNumCols) {
		list($cellColumn, $cellRow) = PHPExcel_Cell::coordinateFromString($cellAddress);
		$cellColumnIndex = PHPExcel_Cell::columnIndexFromString($cellColumn);
		//	Is cell within the range of rows/columns if we're deleting
		if ($pNumRows < 0 &&
			($cellRow >= ($beforeRow + $pNumRows)) &&
			($cellRow < $beforeRow)) {
			return TRUE;
		} elseif ($pNumCols < 0 &&
			($cellColumnIndex >= ($beforeColumnIndex + $pNumCols)) &&
			($cellColumnIndex < $beforeColumnIndex)) {
			return TRUE;
		}
		return FALSE;
	}

	/**
	 * Update page breaks when inserting/deleting rows/columns
	 *
	 * @param   PHPExcel_Worksheet  $pSheet             The worksheet that we're editing
	 * @param   string              $pBefore            Insert/Delete before this cell address (e.g. 'A1')
	 * @param   integer             $beforeColumnIndex  Index number of the column we're inserting/deleting before
	 * @param   integer             $pNumCols           Number of columns to insert/delete (negative values indicate deletion)
	 * @param   integer             $beforeRow          Number of the row we're inserting/deleting before
	 * @param   integer             $pNumRows           Number of rows to insert/delete (negative values indicate deletion)
	 */
	protected function _adjustPageBreaks(PHPExcel_Worksheet $pSheet, $pBefore, $beforeColumnIndex, $pNumCols, $beforeRow, $pNumRows)
	{
		$aBreaks = $pSheet->getBreaks();
		($pNumCols > 0 || $pNumRows > 0) ?
			uksort($aBreaks, array('PHPExcel_ReferenceHelper','cellReverseSort')) :
			uksort($aBreaks, array('PHPExcel_ReferenceHelper','cellSort'));

		foreach ($aBreaks as $key => $value) {
			if (self::cellAddressInDeleteRange($key, $beforeRow, $pNumRows, $beforeColumnIndex, $pNumCols)) {
				//	If we're deleting, then clear any defined breaks that are within the range
				//		of rows/columns that we're deleting
				$pSheet->setBreak($key, PHPExcel_Worksheet::BREAK_NONE);
			} else {
				//	Otherwise update any affected breaks by inserting a new break at the appropriate point
				//		and removing the old affected break
				$newReference = $this->updateCellReference($key, $pBefore, $pNumCols, $pNumRows);
				if ($key != $newReference) {
					$pSheet->setBreak($newReference, $value)
					    ->setBreak($key, PHPExcel_Worksheet::BREAK_NONE);
				}
			}
		}
	}

	/**
	 * Update cell comments when inserting/deleting rows/columns
	 *
	 * @param   PHPExcel_Worksheet  $pSheet             The worksheet that we're editing
	 * @param   string              $pBefore            Insert/Delete before this cell address (e.g. 'A1')
	 * @param   integer             $beforeColumnIndex  Index number of the column we're inserting/deleting before
	 * @param   integer             $pNumCols           Number of columns to insert/delete (negative values indicate deletion)
	 * @param   integer             $beforeRow          Number of the row we're inserting/deleting before
	 * @param   integer             $pNumRows           Number of rows to insert/delete (negative values indicate deletion)
	 */
	protected function _adjustComments($pSheet, $pBefore, $beforeColumnIndex, $pNumCols, $beforeRow, $pNumRows)
	{
		$aComments = $pSheet->getComments();
		$aNewComments = array(); // the new array of all comments

		foreach ($aComments as $key => &$value) {
			// Any comments inside a deleted range will be ignored
			if (!self::cellAddressInDeleteRange($key, $beforeRow, $pNumRows, $beforeColumnIndex, $pNumCols)) {
				//	Otherwise build a new array of comments indexed by the adjusted cell reference
				$newReference = $this->updateCellReference($key, $pBefore, $pNumCols, $pNumRows);
				$aNewComments[$newReference] = $value;
			}
		}
		//	Replace the comments array with the new set of comments
		$pSheet->setComments($aNewComments);
	}

	/**
	 * Update hyperlinks when inserting/deleting rows/columns
	 *
	 * @param   PHPExcel_Worksheet  $pSheet             The worksheet that we're editing
	 * @param   string              $pBefore            Insert/Delete before this cell address (e.g. 'A1')
	 * @param   integer             $beforeColumnIndex  Index number of the column we're inserting/deleting before
	 * @param   integer             $pNumCols           Number of columns to insert/delete (negative values indicate deletion)
	 * @param   integer             $beforeRow          Number of the row we're inserting/deleting before
	 * @param   integer             $pNumRows           Number of rows to insert/delete (negative values indicate deletion)
	 */
	protected function _adjustHyperlinks($pSheet, $pBefore, $beforeColumnIndex, $pNumCols, $beforeRow, $pNumRows)
	{
		$aHyperlinkCollection = $pSheet->getHyperlinkCollection();
		($pNumCols > 0 || $pNumRows > 0) ?
			uksort($aHyperlinkCollection, array('PHPExcel_ReferenceHelper','cellReverseSort')) :
			uksort($aHyperlinkCollection, array('PHPExcel_ReferenceHelper','cellSort'));

		foreach ($aHyperlinkCollection as $key => $value) {
			$newReference = $this->updateCellReference($key, $pBefore, $pNumCols, $pNumRows);
			if ($key != $newReference) {
				$pSheet->setHyperlink( $newReference, $value );
				$pSheet->setHyperlink( $key, null );
			}
		}
	}

	/**
	 * Update data validations when inserting/deleting rows/columns
	 *
	 * @param   PHPExcel_Worksheet  $pSheet             The worksheet that we're editing
	 * @param   string              $pBefore            Insert/Delete before this cell address (e.g. 'A1')
	 * @param   integer             $beforeColumnIndex  Index number of the column we're inserting/deleting before
	 * @param   integer             $pNumCols           Number of columns to insert/delete (negative values indicate deletion)
	 * @param   integer             $beforeRow          Number of the row we're inserting/deleting before
	 * @param   integer             $pNumRows           Number of rows to insert/delete (negative values indicate deletion)
	 */
	protected function _adjustDataValidations($pSheet, $pBefore, $beforeColumnIndex, $pNumCols, $beforeRow, $pNumRows)
	{
		$aDataValidationCollection = $pSheet->getDataValidationCollection();
		($pNumCols > 0 || $pNumRows > 0) ?
			uksort($aDataValidationCollection, array('PHPExcel_ReferenceHelper','cellReverseSort')) :
			uksort($aDataValidationCollection, array('PHPExcel_ReferenceHelper','cellSort'));
		foreach ($aDataValidationCollection as $key => $value) {
			$newReference = $this->updateCellReference($key, $pBefore, $pNumCols, $pNumRows);
			if ($key != $newReference) {
				$pSheet->setDataValidation( $newReference, $value );
				$pSheet->setDataValidation( $key, null );
			}
		}
	}

	/**
	 * Update merged cells when inserting/deleting rows/columns
	 *
	 * @param   PHPExcel_Worksheet  $pSheet             The worksheet that we're editing
	 * @param   string              $pBefore            Insert/Delete before this cell address (e.g. 'A1')
	 * @param   integer             $beforeColumnIndex  Index number of the column we're inserting/deleting before
	 * @param   integer             $pNumCols           Number of columns to insert/delete (negative values indicate deletion)
	 * @param   integer             $beforeRow          Number of the row we're inserting/deleting before
	 * @param   integer             $pNumRows           Number of rows to insert/delete (negative values indicate deletion)
	 */
	protected function _adjustMergeCells($pSheet, $pBefore, $beforeColumnIndex, $pNumCols, $beforeRow, $pNumRows)
	{
		$aMergeCells = $pSheet->getMergeCells();
		$aNewMergeCells = array(); // the new array of all merge cells
		foreach ($aMergeCells as $key => &$value) {
			$newReference = $this->updateCellReference($key, $pBefore, $pNumCols, $pNumRows);
			$aNewMergeCells[$newReference] = $newReference;
		}
		$pSheet->setMergeCells($aNewMergeCells); // replace the merge cells array
	}

	/**
	 * Update protected cells when inserting/deleting rows/columns
	 *
	 * @param   PHPExcel_Worksheet  $pSheet             The worksheet that we're editing
	 * @param   string              $pBefore            Insert/Delete before this cell address (e.g. 'A1')
	 * @param   integer             $beforeColumnIndex  Index number of the column we're inserting/deleting before
	 * @param   integer             $pNumCols           Number of columns to insert/delete (negative values indicate deletion)
	 * @param   integer             $beforeRow          Number of the row we're inserting/deleting before
	 * @param   integer             $pNumRows           Number of rows to insert/delete (negative values indicate deletion)
	 */
	protected function _adjustProtectedCells($pSheet, $pBefore, $beforeColumnIndex, $pNumCols, $beforeRow, $pNumRows)
	{
		$aProtectedCells = $pSheet->getProtectedCells();
		($pNumCols > 0 || $pNumRows > 0) ?
			uksort($aProtectedCells, array('PHPExcel_ReferenceHelper','cellReverseSort')) :
			uksort($aProtectedCells, array('PHPExcel_ReferenceHelper','cellSort'));
		foreach ($aProtectedCells as $key => $value) {
			$newReference = $this->updateCellReference($key, $pBefore, $pNumCols, $pNumRows);
			if ($key != $newReference) {
				$pSheet->protectCells( $newReference, $value, true );
				$pSheet->unprotectCells( $key );
			}
		}
	}

	/**
	 * Update column dimensions when inserting/deleting rows/columns
	 *
	 * @param   PHPExcel_Worksheet  $pSheet             The worksheet that we're editing
	 * @param   string              $pBefore            Insert/Delete before this cell address (e.g. 'A1')
	 * @param   integer             $beforeColumnIndex  Index number of the column we're inserting/deleting before
	 * @param   integer             $pNumCols           Number of columns to insert/delete (negative values indicate deletion)
	 * @param   integer             $beforeRow          Number of the row we're inserting/deleting before
	 * @param   integer             $pNumRows           Number of rows to insert/delete (negative values indicate deletion)
	 */
	protected function _adjustColumnDimensions($pSheet, $pBefore, $beforeColumnIndex, $pNumCols, $beforeRow, $pNumRows)
	{
		$aColumnDimensions = array_reverse($pSheet->getColumnDimensions(), true);
		if (!empty($aColumnDimensions)) {
			foreach ($aColumnDimensions as $objColumnDimension) {
				$newReference = $this->updateCellReference($objColumnDimension->getColumnIndex() . '1', $pBefore, $pNumCols, $pNumRows);
				list($newReference) = PHPExcel_Cell::coordinateFromString($newReference);
				if ($objColumnDimension->getColumnIndex() != $newReference) {
					$objColumnDimension->setColumnIndex($newReference);
				}
			}
			$pSheet->refreshColumnDimensions();
		}
	}

	/**
	 * Update row dimensions when inserting/deleting rows/columns
	 *
	 * @param   PHPExcel_Worksheet  $pSheet             The worksheet that we're editing
	 * @param   string              $pBefore            Insert/Delete before this cell address (e.g. 'A1')
	 * @param   integer             $beforeColumnIndex  Index number of the column we're inserting/deleting before
	 * @param   integer             $pNumCols           Number of columns to insert/delete (negative values indicate deletion)
	 * @param   integer             $beforeRow          Number of the row we're inserting/deleting before
	 * @param   integer             $pNumRows           Number of rows to insert/delete (negative values indicate deletion)
	 */
	protected function _adjustRowDimensions($pSheet, $pBefore, $beforeColumnIndex, $pNumCols, $beforeRow, $pNumRows)
	{
		$aRowDimensions = array_reverse($pSheet->getRowDimensions(), true);
		if (!empty($aRowDimensions)) {
			foreach ($aRowDimensions as $objRowDimension) {
				$newReference = $this->updateCellReference('A' . $objRowDimension->getRowIndex(), $pBefore, $pNumCols, $pNumRows);
				list(, $newReference) = PHPExcel_Cell::coordinateFromString($newReference);
				if ($objRowDimension->getRowIndex() != $newReference) {
					$objRowDimension->setRowIndex($newReference);
				}
			}
			$pSheet->refreshRowDimensions();

			$copyDimension = $pSheet->getRowDimension($beforeRow - 1);
			for ($i = $beforeRow; $i <= $beforeRow - 1 + $pNumRows; ++$i) {
				$newDimension = $pSheet->getRowDimension($i);
				$newDimension->setRowHeight($copyDimension->getRowHeight());
				$newDimension->setVisible($copyDimension->getVisible());
				$newDimension->setOutlineLevel($copyDimension->getOutlineLevel());
				$newDimension->setCollapsed($copyDimension->getCollapsed());
			}
		}
	}

	/**
	 * Insert a new column or row, updating all possible related data
	 *
	 * @param   string              $pBefore    Insert before this cell address (e.g. 'A1')
	 * @param   integer             $pNumCols   Number of columns to insert/delete (negative values indicate deletion)
	 * @param   integer             $pNumRows   Number of rows to insert/delete (negative values indicate deletion)
	 * @param   PHPExcel_Worksheet  $pSheet     The worksheet that we're editing
	 * @throws  PHPExcel_Exception
	 */
	public function insertNewBefore($pBefore = 'A1', $pNumCols = 0, $pNumRows = 0, PHPExcel_Worksheet $pSheet = NULL)
	{
		$remove = ($pNumCols < 0 || $pNumRows < 0);
		$aCellCollection = $pSheet->getCellCollection();

		// Get coordinates of $pBefore
		$beforeColumn	= 'A';
		$beforeRow		= 1;
		list($beforeColumn, $beforeRow) = PHPExcel_Cell::coordinateFromString($pBefore);
		$beforeColumnIndex = PHPExcel_Cell::columnIndexFromString($beforeColumn);

		// Clear cells if we are removing columns or rows
		$highestColumn	= $pSheet->getHighestColumn();
		$highestRow	= $pSheet->getHighestRow();

		// 1. Clear column strips if we are removing columns
		if ($pNumCols < 0 && $beforeColumnIndex - 2 + $pNumCols > 0) {
			for ($i = 1; $i <= $highestRow - 1; ++$i) {
				for ($j = $beforeColumnIndex - 1 + $pNumCols; $j <= $beforeColumnIndex - 2; ++$j) {
					$coordinate = PHPExcel_Cell::stringFromColumnIndex($j) . $i;
					$pSheet->removeConditionalStyles($coordinate);
					if ($pSheet->cellExists($coordinate)) {
						$pSheet->getCell($coordinate)->setValueExplicit('', PHPExcel_Cell_DataType::TYPE_NULL);
						$pSheet->getCell($coordinate)->setXfIndex(0);
					}
				}
			}
		}

		// 2. Clear row strips if we are removing rows
		if ($pNumRows < 0 && $beforeRow - 1 + $pNumRows > 0) {
			for ($i = $beforeColumnIndex - 1; $i <= PHPExcel_Cell::columnIndexFromString($highestColumn) - 1; ++$i) {
				for ($j = $beforeRow + $pNumRows; $j <= $beforeRow - 1; ++$j) {
					$coordinate = PHPExcel_Cell::stringFromColumnIndex($i) . $j;
					$pSheet->removeConditionalStyles($coordinate);
					if ($pSheet->cellExists($coordinate)) {
						$pSheet->getCell($coordinate)->setValueExplicit('', PHPExcel_Cell_DataType::TYPE_NULL);
						$pSheet->getCell($coordinate)->setXfIndex(0);
					}
				}
			}
		}

		// Loop through cells, bottom-up, and change cell coordinates
        if($remove) {
            // It's faster to reverse and pop than to use unshift, especially with large cell collections
            $aCellCollection = array_reverse($aCellCollection);
        }
		while ($cellID = array_pop($aCellCollection)) {
			$cell = $pSheet->getCell($cellID);
			$cellIndex = PHPExcel_Cell::columnIndexFromString($cell->getColumn());

			if ($cellIndex-1 + $pNumCols < 0) {
				continue;
			}

			// New coordinates
			$newCoordinates = PHPExcel_Cell::stringFromColumnIndex($cellIndex-1 + $pNumCols) . ($cell->getRow() + $pNumRows);

			// Should the cell be updated? Move value and cellXf index from one cell to another.
			if (($cellIndex >= $beforeColumnIndex) &&
				($cell->getRow() >= $beforeRow)) {

				// Update cell styles
				$pSheet->getCell($newCoordinates)->setXfIndex($cell->getXfIndex());

				// Insert this cell at its new location
				if ($cell->getDataType() == PHPExcel_Cell_DataType::TYPE_FORMULA) {
					// Formula should be adjusted
					$pSheet->getCell($newCoordinates)
						   ->setValue($this->updateFormulaReferences($cell->getValue(),
						   					$pBefore, $pNumCols, $pNumRows, $pSheet->getTitle()));
				} else {
					// Formula should not be adjusted
					$pSheet->getCell($newCoordinates)->setValue($cell->getValue());
				}

				// Clear the original cell
				$pSheet->getCellCacheController()->deleteCacheData($cellID);

			} else {
				/*	We don't need to update styles for rows/columns before our insertion position,
						but we do still need to adjust any formulae	in those cells					*/
				if ($cell->getDataType() == PHPExcel_Cell_DataType::TYPE_FORMULA) {
					// Formula should be adjusted
					$cell->setValue($this->updateFormulaReferences($cell->getValue(),
										$pBefore, $pNumCols, $pNumRows, $pSheet->getTitle()));
				}

			}
		}

		// Duplicate styles for the newly inserted cells
		$highestColumn	= $pSheet->getHighestColumn();
		$highestRow	= $pSheet->getHighestRow();

		if ($pNumCols > 0 && $beforeColumnIndex - 2 > 0) {
			for ($i = $beforeRow; $i <= $highestRow - 1; ++$i) {

				// Style
				$coordinate = PHPExcel_Cell::stringFromColumnIndex( $beforeColumnIndex - 2 ) . $i;
				if ($pSheet->cellExists($coordinate)) {
					$xfIndex = $pSheet->getCell($coordinate)->getXfIndex();
					$conditionalStyles = $pSheet->conditionalStylesExists($coordinate) ?
						$pSheet->getConditionalStyles($coordinate) : false;
					for ($j = $beforeColumnIndex - 1; $j <= $beforeColumnIndex - 2 + $pNumCols; ++$j) {
						$pSheet->getCellByColumnAndRow($j, $i)->setXfIndex($xfIndex);
						if ($conditionalStyles) {
							$cloned = array();
							foreach ($conditionalStyles as $conditionalStyle) {
								$cloned[] = clone $conditionalStyle;
							}
							$pSheet->setConditionalStyles(PHPExcel_Cell::stringFromColumnIndex($j) . $i, $cloned);
						}
					}
				}

			}
		}

		if ($pNumRows > 0 && $beforeRow - 1 > 0) {
			for ($i = $beforeColumnIndex - 1; $i <= PHPExcel_Cell::columnIndexFromString($highestColumn) - 1; ++$i) {

				// Style
				$coordinate = PHPExcel_Cell::stringFromColumnIndex($i) . ($beforeRow - 1);
				if ($pSheet->cellExists($coordinate)) {
					$xfIndex = $pSheet->getCell($coordinate)->getXfIndex();
					$conditionalStyles = $pSheet->conditionalStylesExists($coordinate) ?
						$pSheet->getConditionalStyles($coordinate) : false;
					for ($j = $beforeRow; $j <= $beforeRow - 1 + $pNumRows; ++$j) {
						$pSheet->getCell(PHPExcel_Cell::stringFromColumnIndex($i) . $j)->setXfIndex($xfIndex);
						if ($conditionalStyles) {
							$cloned = array();
							foreach ($conditionalStyles as $conditionalStyle) {
								$cloned[] = clone $conditionalStyle;
							}
							$pSheet->setConditionalStyles(PHPExcel_Cell::stringFromColumnIndex($i) . $j, $cloned);
						}
					}
				}
			}
		}

		// Update worksheet: column dimensions
		$this->_adjustColumnDimensions($pSheet, $pBefore, $beforeColumnIndex, $pNumCols, $beforeRow, $pNumRows);

		// Update worksheet: row dimensions
		$this->_adjustRowDimensions($pSheet, $pBefore, $beforeColumnIndex, $pNumCols, $beforeRow, $pNumRows);

		//	Update worksheet: page breaks
		$this->_adjustPageBreaks($pSheet, $pBefore, $beforeColumnIndex, $pNumCols, $beforeRow, $pNumRows);

		//	Update worksheet: comments
		$this->_adjustComments($pSheet, $pBefore, $beforeColumnIndex, $pNumCols, $beforeRow, $pNumRows);

		// Update worksheet: hyperlinks
		$this->_adjustHyperlinks($pSheet, $pBefore, $beforeColumnIndex, $pNumCols, $beforeRow, $pNumRows);

		// Update worksheet: data validations
		$this->_adjustDataValidations($pSheet, $pBefore, $beforeColumnIndex, $pNumCols, $beforeRow, $pNumRows);

		// Update worksheet: merge cells
		$this->_adjustMergeCells($pSheet, $pBefore, $beforeColumnIndex, $pNumCols, $beforeRow, $pNumRows);

		// Update worksheet: protected cells
		$this->_adjustProtectedCells($pSheet, $pBefore, $beforeColumnIndex, $pNumCols, $beforeRow, $pNumRows);

		// Update worksheet: autofilter
		$autoFilter = $pSheet->getAutoFilter();
		$autoFilterRange = $autoFilter->getRange();
		if (!empty($autoFilterRange)) {
			if ($pNumCols != 0) {
				$autoFilterColumns = array_keys($autoFilter->getColumns());
				if (count($autoFilterColumns) > 0) {
					sscanf($pBefore,'%[A-Z]%d', $column, $row);
					$columnIndex = PHPExcel_Cell::columnIndexFromString($column);
					list($rangeStart,$rangeEnd) = PHPExcel_Cell::rangeBoundaries($autoFilterRange);
					if ($columnIndex <= $rangeEnd[0]) {
						if ($pNumCols < 0) {
							//	If we're actually deleting any columns that fall within the autofilter range,
							//		then we delete any rules for those columns
							$deleteColumn = $columnIndex + $pNumCols - 1;
							$deleteCount = abs($pNumCols);
							for ($i = 1; $i <= $deleteCount; ++$i) {
								if (in_array(PHPExcel_Cell::stringFromColumnIndex($deleteColumn),$autoFilterColumns)) {
									$autoFilter->clearColumn(PHPExcel_Cell::stringFromColumnIndex($deleteColumn));
								}
								++$deleteColumn;
							}
						}
						$startCol = ($columnIndex > $rangeStart[0]) ? $columnIndex : $rangeStart[0];

						//	Shuffle columns in autofilter range
						if ($pNumCols > 0) {
							//	For insert, we shuffle from end to beginning to avoid overwriting
							$startColID = PHPExcel_Cell::stringFromColumnIndex($startCol-1);
							$toColID = PHPExcel_Cell::stringFromColumnIndex($startCol+$pNumCols-1);
							$endColID = PHPExcel_Cell::stringFromColumnIndex($rangeEnd[0]);

							$startColRef = $startCol;
							$endColRef = $rangeEnd[0];
							$toColRef = $rangeEnd[0]+$pNumCols;

							do {
								$autoFilter->shiftColumn(PHPExcel_Cell::stringFromColumnIndex($endColRef-1),PHPExcel_Cell::stringFromColumnIndex($toColRef-1));
								--$endColRef;
								--$toColRef;
							} while ($startColRef <= $endColRef);
						} else {
							//	For delete, we shuffle from beginning to end to avoid overwriting
							$startColID = PHPExcel_Cell::stringFromColumnIndex($startCol-1);
							$toColID = PHPExcel_Cell::stringFromColumnIndex($startCol+$pNumCols-1);
							$endColID = PHPExcel_Cell::stringFromColumnIndex($rangeEnd[0]);
							do {
								$autoFilter->shiftColumn($startColID,$toColID);
								++$startColID;
								++$toColID;
							} while ($startColID != $endColID);
						}
					}
				}
			}
			$pSheet->setAutoFilter( $this->updateCellReference($autoFilterRange, $pBefore, $pNumCols, $pNumRows) );
		}

		// Update worksheet: freeze pane
		if ($pSheet->getFreezePane() != '') {
			$pSheet->freezePane( $this->updateCellReference($pSheet->getFreezePane(), $pBefore, $pNumCols, $pNumRows) );
		}

		// Page setup
		if ($pSheet->getPageSetup()->isPrintAreaSet()) {
			$pSheet->getPageSetup()->setPrintArea( $this->updateCellReference($pSheet->getPageSetup()->getPrintArea(), $pBefore, $pNumCols, $pNumRows) );
		}

		// Update worksheet: drawings
		$aDrawings = $pSheet->getDrawingCollection();
		foreach ($aDrawings as $objDrawing) {
			$newReference = $this->updateCellReference($objDrawing->getCoordinates(), $pBefore, $pNumCols, $pNumRows);
			if ($objDrawing->getCoordinates() != $newReference) {
				$objDrawing->setCoordinates($newReference);
			}
		}

		// Update workbook: named ranges
		if (count($pSheet->getParent()->getNamedRanges()) > 0) {
			foreach ($pSheet->getParent()->getNamedRanges() as $namedRange) {
				if ($namedRange->getWorksheet()->getHashCode() == $pSheet->getHashCode()) {
					$namedRange->setRange(
						$this->updateCellReference($namedRange->getRange(), $pBefore, $pNumCols, $pNumRows)
					);
				}
			}
		}

		// Garbage collect
		$pSheet->garbageCollect();
	}

	/**
	 * Update references within formulas
	 *
	 * @param	string	$pFormula	Formula to update
	 * @param	int		$pBefore	Insert before this one
	 * @param	int		$pNumCols	Number of columns to insert
	 * @param	int		$pNumRows	Number of rows to insert
	 * @param   string  $sheetName  Worksheet name/title
	 * @return	string	Updated formula
	 * @throws	PHPExcel_Exception
	 */
	public function updateFormulaReferences($pFormula = '', $pBefore = 'A1', $pNumCols = 0, $pNumRows = 0, $sheetName = '') {
		//	Update cell references in the formula
		$formulaBlocks = explode('"',$pFormula);
		$i = false;
		foreach($formulaBlocks as &$formulaBlock) {
			//	Ignore blocks that were enclosed in quotes (alternating entries in the $formulaBlocks array after the explode)
			if ($i = !$i) {
				$adjustCount = 0;
				$newCellTokens = $cellTokens = array();
				//	Search for row ranges (e.g. 'Sheet1'!3:5 or 3:5) with or without $ absolutes (e.g. $3:5)
				$matchCount = preg_match_all('/'.self::REFHELPER_REGEXP_ROWRANGE.'/i', ' '.$formulaBlock.' ', $matches, PREG_SET_ORDER);
				if ($matchCount > 0) {
					foreach($matches as $match) {
						$fromString = ($match[2] > '') ? $match[2].'!' : '';
						$fromString .= $match[3].':'.$match[4];
						$modified3 = substr($this->updateCellReference('$A'.$match[3],$pBefore,$pNumCols,$pNumRows),2);
						$modified4 = substr($this->updateCellReference('$A'.$match[4],$pBefore,$pNumCols,$pNumRows),2);

						if ($match[3].':'.$match[4] !== $modified3.':'.$modified4) {
							if (($match[2] == '') || (trim($match[2],"'") == $sheetName)) {
								$toString = ($match[2] > '') ? $match[2].'!' : '';
								$toString .= $modified3.':'.$modified4;
								//	Max worksheet size is 1,048,576 rows by 16,384 columns in Excel 2007, so our adjustments need to be at least one digit more
								$column = 100000;
								$row = 10000000+trim($match[3],'$');
								$cellIndex = $column.$row;

								$newCellTokens[$cellIndex] = preg_quote($toString);
								$cellTokens[$cellIndex] = '/(?<!\d\$\!)'.preg_quote($fromString).'(?!\d)/i';
								++$adjustCount;
							}
						}
					}
				}
				//	Search for column ranges (e.g. 'Sheet1'!C:E or C:E) with or without $ absolutes (e.g. $C:E)
				$matchCount = preg_match_all('/'.self::REFHELPER_REGEXP_COLRANGE.'/i', ' '.$formulaBlock.' ', $matches, PREG_SET_ORDER);
				if ($matchCount > 0) {
					foreach($matches as $match) {
						$fromString = ($match[2] > '') ? $match[2].'!' : '';
						$fromString .= $match[3].':'.$match[4];
						$modified3 = substr($this->updateCellReference($match[3].'$1',$pBefore,$pNumCols,$pNumRows),0,-2);
						$modified4 = substr($this->updateCellReference($match[4].'$1',$pBefore,$pNumCols,$pNumRows),0,-2);

						if ($match[3].':'.$match[4] !== $modified3.':'.$modified4) {
							if (($match[2] == '') || (trim($match[2],"'") == $sheetName)) {
								$toString = ($match[2] > '') ? $match[2].'!' : '';
								$toString .= $modified3.':'.$modified4;
								//	Max worksheet size is 1,048,576 rows by 16,384 columns in Excel 2007, so our adjustments need to be at least one digit more
								$column = PHPExcel_Cell::columnIndexFromString(trim($match[3],'$')) + 100000;
								$row = 10000000;
								$cellIndex = $column.$row;

								$newCellTokens[$cellIndex] = preg_quote($toString);
								$cellTokens[$cellIndex] = '/(?<![A-Z\$\!])'.preg_quote($fromString).'(?![A-Z])/i';
								++$adjustCount;
							}
						}
					}
				}
				//	Search for cell ranges (e.g. 'Sheet1'!A3:C5 or A3:C5) with or without $ absolutes (e.g. $A1:C$5)
				$matchCount = preg_match_all('/'.self::REFHELPER_REGEXP_CELLRANGE.'/i', ' '.$formulaBlock.' ', $matches, PREG_SET_ORDER);
				if ($matchCount > 0) {
					foreach($matches as $match) {
						$fromString = ($match[2] > '') ? $match[2].'!' : '';
						$fromString .= $match[3].':'.$match[4];
						$modified3 = $this->updateCellReference($match[3],$pBefore,$pNumCols,$pNumRows);
						$modified4 = $this->updateCellReference($match[4],$pBefore,$pNumCols,$pNumRows);

						if ($match[3].$match[4] !== $modified3.$modified4) {
							if (($match[2] == '') || (trim($match[2],"'") == $sheetName)) {
								$toString = ($match[2] > '') ? $match[2].'!' : '';
								$toString .= $modified3.':'.$modified4;
								list($column,$row) = PHPExcel_Cell::coordinateFromString($match[3]);
								//	Max worksheet size is 1,048,576 rows by 16,384 columns in Excel 2007, so our adjustments need to be at least one digit more
								$column = PHPExcel_Cell::columnIndexFromString(trim($column,'$')) + 100000;
								$row = trim($row,'$') + 10000000;
								$cellIndex = $column.$row;

								$newCellTokens[$cellIndex] = preg_quote($toString);
								$cellTokens[$cellIndex] = '/(?<![A-Z]\$\!)'.preg_quote($fromString).'(?!\d)/i';
								++$adjustCount;
							}
						}
					}
				}
				//	Search for cell references (e.g. 'Sheet1'!A3 or C5) with or without $ absolutes (e.g. $A1 or C$5)
				$matchCount = preg_match_all('/'.self::REFHELPER_REGEXP_CELLREF.'/i', ' '.$formulaBlock.' ', $matches, PREG_SET_ORDER);

				if ($matchCount > 0) {
					foreach($matches as $match) {
						$fromString = ($match[2] > '') ? $match[2].'!' : '';
						$fromString .= $match[3];

						$modified3 = $this->updateCellReference($match[3],$pBefore,$pNumCols,$pNumRows);
						if ($match[3] !== $modified3) {
							if (($match[2] == '') || (trim($match[2],"'") == $sheetName)) {
								$toString = ($match[2] > '') ? $match[2].'!' : '';
								$toString .= $modified3;
								list($column,$row) = PHPExcel_Cell::coordinateFromString($match[3]);
								//	Max worksheet size is 1,048,576 rows by 16,384 columns in Excel 2007, so our adjustments need to be at least one digit more
								$column = PHPExcel_Cell::columnIndexFromString(trim($column,'$')) + 100000;
								$row = trim($row,'$') + 10000000;
								$cellIndex = $row . $column;

								$newCellTokens[$cellIndex] = preg_quote($toString);
								$cellTokens[$cellIndex] = '/(?<![A-Z\$\!])'.preg_quote($fromString).'(?!\d)/i';
								++$adjustCount;
							}
						}
					}
				}
				if ($adjustCount > 0) {
                    if ($pNumCols > 0 || $pNumRows > 0) {
                        krsort($cellTokens);
                        krsort($newCellTokens);
                      } else {
                        ksort($cellTokens);
                        ksort($newCellTokens);
                    }   //  Update cell references in the formula
					$formulaBlock = str_replace('\\','',preg_replace($cellTokens,$newCellTokens,$formulaBlock));
				}
			}
		}
		unset($formulaBlock);

		//	Then rebuild the formula string
		return implode('"',$formulaBlocks);
	}

	/**
	 * Update cell reference
	 *
	 * @param	string	$pCellRange			Cell range
	 * @param	int		$pBefore			Insert before this one
	 * @param	int		$pNumCols			Number of columns to increment
	 * @param	int		$pNumRows			Number of rows to increment
	 * @return	string	Updated cell range
	 * @throws	PHPExcel_Exception
	 */
	public function updateCellReference($pCellRange = 'A1', $pBefore = 'A1', $pNumCols = 0, $pNumRows = 0) {
		// Is it in another worksheet? Will not have to update anything.
		if (strpos($pCellRange, "!") !== false) {
			return $pCellRange;
		// Is it a range or a single cell?
		} elseif (strpos($pCellRange, ':') === false && strpos($pCellRange, ',') === false) {
			// Single cell
			return $this->_updateSingleCellReference($pCellRange, $pBefore, $pNumCols, $pNumRows);
		} elseif (strpos($pCellRange, ':') !== false || strpos($pCellRange, ',') !== false) {
			// Range
			return $this->_updateCellRange($pCellRange, $pBefore, $pNumCols, $pNumRows);
		} else {
			// Return original
			return $pCellRange;
		}
	}

	/**
	 * Update named formulas (i.e. containing worksheet references / named ranges)
	 *
	 * @param PHPExcel $pPhpExcel	Object to update
	 * @param string $oldName		Old name (name to replace)
	 * @param string $newName		New name
	 */
	public function updateNamedFormulas(PHPExcel $pPhpExcel, $oldName = '', $newName = '') {
		if ($oldName == '') {
			return;
		}

		foreach ($pPhpExcel->getWorksheetIterator() as $sheet) {
			foreach ($sheet->getCellCollection(false) as $cellID) {
				$cell = $sheet->getCell($cellID);
				if (($cell !== NULL) && ($cell->getDataType() == PHPExcel_Cell_DataType::TYPE_FORMULA)) {
					$formula = $cell->getValue();
					if (strpos($formula, $oldName) !== false) {
						$formula = str_replace("'" . $oldName . "'!", "'" . $newName . "'!", $formula);
						$formula = str_replace($oldName . "!", $newName . "!", $formula);
						$cell->setValueExplicit($formula, PHPExcel_Cell_DataType::TYPE_FORMULA);
					}
				}
			}
		}
	}

	/**
	 * Update cell range
	 *
	 * @param	string	$pCellRange			Cell range	(e.g. 'B2:D4', 'B:C' or '2:3')
	 * @param	int		$pBefore			Insert before this one
	 * @param	int		$pNumCols			Number of columns to increment
	 * @param	int		$pNumRows			Number of rows to increment
	 * @return	string	Updated cell range
	 * @throws	PHPExcel_Exception
	 */
	private function _updateCellRange($pCellRange = 'A1:A1', $pBefore = 'A1', $pNumCols = 0, $pNumRows = 0) {
		if (strpos($pCellRange,':') !== false || strpos($pCellRange, ',') !== false) {
			// Update range
			$range = PHPExcel_Cell::splitRange($pCellRange);
			$ic = count($range);
			for ($i = 0; $i < $ic; ++$i) {
				$jc = count($range[$i]);
				for ($j = 0; $j < $jc; ++$j) {
					if (ctype_alpha($range[$i][$j])) {
						$r = PHPExcel_Cell::coordinateFromString($this->_updateSingleCellReference($range[$i][$j].'1', $pBefore, $pNumCols, $pNumRows));
						$range[$i][$j] = $r[0];
					} elseif(ctype_digit($range[$i][$j])) {
						$r = PHPExcel_Cell::coordinateFromString($this->_updateSingleCellReference('A'.$range[$i][$j], $pBefore, $pNumCols, $pNumRows));
						$range[$i][$j] = $r[1];
					} else {
						$range[$i][$j] = $this->_updateSingleCellReference($range[$i][$j], $pBefore, $pNumCols, $pNumRows);
					}
				}
			}

			// Recreate range string
			return PHPExcel_Cell::buildRange($range);
		} else {
			throw new PHPExcel_Exception("Only cell ranges may be passed to this method.");
		}
	}

	/**
	 * Update single cell reference
	 *
	 * @param	string	$pCellReference		Single cell reference
	 * @param	int		$pBefore			Insert before this one
	 * @param	int		$pNumCols			Number of columns to increment
	 * @param	int		$pNumRows			Number of rows to increment
	 * @return	string	Updated cell reference
	 * @throws	PHPExcel_Exception
	 */
	private function _updateSingleCellReference($pCellReference = 'A1', $pBefore = 'A1', $pNumCols = 0, $pNumRows = 0) {
		if (strpos($pCellReference, ':') === false && strpos($pCellReference, ',') === false) {
			// Get coordinates of $pBefore
			list($beforeColumn, $beforeRow) = PHPExcel_Cell::coordinateFromString( $pBefore );

			// Get coordinates of $pCellReference
			list($newColumn, $newRow) = PHPExcel_Cell::coordinateFromString( $pCellReference );

			// Verify which parts should be updated
			$updateColumn = (($newColumn{0} != '$') && ($beforeColumn{0} != '$') &&
							 PHPExcel_Cell::columnIndexFromString($newColumn) >= PHPExcel_Cell::columnIndexFromString($beforeColumn));
			$updateRow = (($newRow{0} != '$') && ($beforeRow{0} != '$') &&
						  $newRow >= $beforeRow);

			// Create new column reference
			if ($updateColumn) {
				$newColumn	= PHPExcel_Cell::stringFromColumnIndex( PHPExcel_Cell::columnIndexFromString($newColumn) - 1 + $pNumCols );
			}

			// Create new row reference
			if ($updateRow) {
				$newRow	= $newRow + $pNumRows;
			}

			// Return new reference
			return $newColumn . $newRow;
		} else {
			throw new PHPExcel_Exception("Only single cell references may be passed to this method.");
		}
	}

	/**
	 * __clone implementation. Cloning should not be allowed in a Singleton!
	 *
	 * @throws	PHPExcel_Exception
	 */
	public final function __clone() {
		throw new PHPExcel_Exception("Cloning a Singleton is not allowed!");
	}
}