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317 lines
12 KiB
317 lines
12 KiB
<?php
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/**
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* PHPExcel
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*
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* Copyright (c) 2006 - 2014 PHPExcel
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* @category PHPExcel
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* @package PHPExcel_Shared
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* @copyright Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
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* @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL
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* @version 1.8.0, 2014-03-02
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*/
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/**
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* PHPExcel_Shared_Excel5
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*
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* @category PHPExcel
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* @package PHPExcel_Shared
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* @copyright Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
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*/
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class PHPExcel_Shared_Excel5
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{
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/**
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* Get the width of a column in pixels. We use the relationship y = ceil(7x) where
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* x is the width in intrinsic Excel units (measuring width in number of normal characters)
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* This holds for Arial 10
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*
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* @param PHPExcel_Worksheet $sheet The sheet
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* @param string $col The column
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* @return integer The width in pixels
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*/
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public static function sizeCol($sheet, $col = 'A')
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{
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// default font of the workbook
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$font = $sheet->getParent()->getDefaultStyle()->getFont();
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$columnDimensions = $sheet->getColumnDimensions();
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// first find the true column width in pixels (uncollapsed and unhidden)
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if ( isset($columnDimensions[$col]) and $columnDimensions[$col]->getWidth() != -1 ) {
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// then we have column dimension with explicit width
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$columnDimension = $columnDimensions[$col];
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$width = $columnDimension->getWidth();
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$pixelWidth = PHPExcel_Shared_Drawing::cellDimensionToPixels($width, $font);
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} else if ($sheet->getDefaultColumnDimension()->getWidth() != -1) {
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// then we have default column dimension with explicit width
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$defaultColumnDimension = $sheet->getDefaultColumnDimension();
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$width = $defaultColumnDimension->getWidth();
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$pixelWidth = PHPExcel_Shared_Drawing::cellDimensionToPixels($width, $font);
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} else {
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// we don't even have any default column dimension. Width depends on default font
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$pixelWidth = PHPExcel_Shared_Font::getDefaultColumnWidthByFont($font, true);
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}
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// now find the effective column width in pixels
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if (isset($columnDimensions[$col]) and !$columnDimensions[$col]->getVisible()) {
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$effectivePixelWidth = 0;
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} else {
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$effectivePixelWidth = $pixelWidth;
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}
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return $effectivePixelWidth;
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}
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/**
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* Convert the height of a cell from user's units to pixels. By interpolation
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* the relationship is: y = 4/3x. If the height hasn't been set by the user we
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* use the default value. If the row is hidden we use a value of zero.
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*
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* @param PHPExcel_Worksheet $sheet The sheet
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* @param integer $row The row index (1-based)
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* @return integer The width in pixels
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*/
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public static function sizeRow($sheet, $row = 1)
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{
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// default font of the workbook
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$font = $sheet->getParent()->getDefaultStyle()->getFont();
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$rowDimensions = $sheet->getRowDimensions();
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// first find the true row height in pixels (uncollapsed and unhidden)
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if ( isset($rowDimensions[$row]) and $rowDimensions[$row]->getRowHeight() != -1) {
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// then we have a row dimension
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$rowDimension = $rowDimensions[$row];
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$rowHeight = $rowDimension->getRowHeight();
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$pixelRowHeight = (int) ceil(4 * $rowHeight / 3); // here we assume Arial 10
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} else if ($sheet->getDefaultRowDimension()->getRowHeight() != -1) {
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// then we have a default row dimension with explicit height
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$defaultRowDimension = $sheet->getDefaultRowDimension();
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$rowHeight = $defaultRowDimension->getRowHeight();
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$pixelRowHeight = PHPExcel_Shared_Drawing::pointsToPixels($rowHeight);
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} else {
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// we don't even have any default row dimension. Height depends on default font
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$pointRowHeight = PHPExcel_Shared_Font::getDefaultRowHeightByFont($font);
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$pixelRowHeight = PHPExcel_Shared_Font::fontSizeToPixels($pointRowHeight);
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}
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// now find the effective row height in pixels
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if ( isset($rowDimensions[$row]) and !$rowDimensions[$row]->getVisible() ) {
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$effectivePixelRowHeight = 0;
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} else {
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$effectivePixelRowHeight = $pixelRowHeight;
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}
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return $effectivePixelRowHeight;
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}
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/**
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* Get the horizontal distance in pixels between two anchors
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* The distanceX is found as sum of all the spanning columns widths minus correction for the two offsets
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*
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* @param PHPExcel_Worksheet $sheet
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* @param string $startColumn
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* @param integer $startOffsetX Offset within start cell measured in 1/1024 of the cell width
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* @param string $endColumn
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* @param integer $endOffsetX Offset within end cell measured in 1/1024 of the cell width
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* @return integer Horizontal measured in pixels
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*/
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public static function getDistanceX(PHPExcel_Worksheet $sheet, $startColumn = 'A', $startOffsetX = 0, $endColumn = 'A', $endOffsetX = 0)
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{
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$distanceX = 0;
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// add the widths of the spanning columns
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$startColumnIndex = PHPExcel_Cell::columnIndexFromString($startColumn) - 1; // 1-based
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$endColumnIndex = PHPExcel_Cell::columnIndexFromString($endColumn) - 1; // 1-based
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for ($i = $startColumnIndex; $i <= $endColumnIndex; ++$i) {
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$distanceX += self::sizeCol($sheet, PHPExcel_Cell::stringFromColumnIndex($i));
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}
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// correct for offsetX in startcell
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$distanceX -= (int) floor(self::sizeCol($sheet, $startColumn) * $startOffsetX / 1024);
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// correct for offsetX in endcell
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$distanceX -= (int) floor(self::sizeCol($sheet, $endColumn) * (1 - $endOffsetX / 1024));
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return $distanceX;
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}
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/**
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* Get the vertical distance in pixels between two anchors
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* The distanceY is found as sum of all the spanning rows minus two offsets
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*
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* @param PHPExcel_Worksheet $sheet
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* @param integer $startRow (1-based)
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* @param integer $startOffsetY Offset within start cell measured in 1/256 of the cell height
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* @param integer $endRow (1-based)
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* @param integer $endOffsetY Offset within end cell measured in 1/256 of the cell height
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* @return integer Vertical distance measured in pixels
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*/
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public static function getDistanceY(PHPExcel_Worksheet $sheet, $startRow = 1, $startOffsetY = 0, $endRow = 1, $endOffsetY = 0)
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{
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$distanceY = 0;
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// add the widths of the spanning rows
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for ($row = $startRow; $row <= $endRow; ++$row) {
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$distanceY += self::sizeRow($sheet, $row);
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}
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// correct for offsetX in startcell
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$distanceY -= (int) floor(self::sizeRow($sheet, $startRow) * $startOffsetY / 256);
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// correct for offsetX in endcell
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$distanceY -= (int) floor(self::sizeRow($sheet, $endRow) * (1 - $endOffsetY / 256));
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return $distanceY;
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}
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/**
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* Convert 1-cell anchor coordinates to 2-cell anchor coordinates
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* This function is ported from PEAR Spreadsheet_Writer_Excel with small modifications
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*
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* Calculate the vertices that define the position of the image as required by
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* the OBJ record.
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*
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* +------------+------------+
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* | A | B |
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* +-----+------------+------------+
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* | |(x1,y1) | |
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* | 1 |(A1)._______|______ |
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* | | | | |
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* | | | | |
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* +-----+----| BITMAP |-----+
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* | | | | |
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* | 2 | |______________. |
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* | | | (B2)|
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* | | | (x2,y2)|
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* +---- +------------+------------+
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*
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* Example of a bitmap that covers some of the area from cell A1 to cell B2.
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*
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* Based on the width and height of the bitmap we need to calculate 8 vars:
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* $col_start, $row_start, $col_end, $row_end, $x1, $y1, $x2, $y2.
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* The width and height of the cells are also variable and have to be taken into
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* account.
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* The values of $col_start and $row_start are passed in from the calling
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* function. The values of $col_end and $row_end are calculated by subtracting
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* the width and height of the bitmap from the width and height of the
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* underlying cells.
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* The vertices are expressed as a percentage of the underlying cell width as
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* follows (rhs values are in pixels):
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*
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* x1 = X / W *1024
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* y1 = Y / H *256
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* x2 = (X-1) / W *1024
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* y2 = (Y-1) / H *256
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*
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* Where: X is distance from the left side of the underlying cell
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* Y is distance from the top of the underlying cell
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* W is the width of the cell
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* H is the height of the cell
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*
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* @param PHPExcel_Worksheet $sheet
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* @param string $coordinates E.g. 'A1'
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* @param integer $offsetX Horizontal offset in pixels
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* @param integer $offsetY Vertical offset in pixels
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* @param integer $width Width in pixels
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* @param integer $height Height in pixels
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* @return array
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*/
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public static function oneAnchor2twoAnchor($sheet, $coordinates, $offsetX, $offsetY, $width, $height)
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{
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list($column, $row) = PHPExcel_Cell::coordinateFromString($coordinates);
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$col_start = PHPExcel_Cell::columnIndexFromString($column) - 1;
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$row_start = $row - 1;
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$x1 = $offsetX;
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$y1 = $offsetY;
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// Initialise end cell to the same as the start cell
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$col_end = $col_start; // Col containing lower right corner of object
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$row_end = $row_start; // Row containing bottom right corner of object
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// Zero the specified offset if greater than the cell dimensions
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if ($x1 >= self::sizeCol($sheet, PHPExcel_Cell::stringFromColumnIndex($col_start))) {
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$x1 = 0;
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}
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if ($y1 >= self::sizeRow($sheet, $row_start + 1)) {
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$y1 = 0;
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}
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$width = $width + $x1 -1;
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$height = $height + $y1 -1;
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// Subtract the underlying cell widths to find the end cell of the image
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while ($width >= self::sizeCol($sheet, PHPExcel_Cell::stringFromColumnIndex($col_end))) {
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$width -= self::sizeCol($sheet, PHPExcel_Cell::stringFromColumnIndex($col_end));
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++$col_end;
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}
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// Subtract the underlying cell heights to find the end cell of the image
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while ($height >= self::sizeRow($sheet, $row_end + 1)) {
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$height -= self::sizeRow($sheet, $row_end + 1);
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++$row_end;
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}
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// Bitmap isn't allowed to start or finish in a hidden cell, i.e. a cell
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// with zero height or width.
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if (self::sizeCol($sheet, PHPExcel_Cell::stringFromColumnIndex($col_start)) == 0) {
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return;
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}
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if (self::sizeCol($sheet, PHPExcel_Cell::stringFromColumnIndex($col_end)) == 0) {
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return;
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}
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if (self::sizeRow($sheet, $row_start + 1) == 0) {
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return;
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}
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if (self::sizeRow($sheet, $row_end + 1) == 0) {
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return;
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}
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// Convert the pixel values to the percentage value expected by Excel
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$x1 = $x1 / self::sizeCol($sheet, PHPExcel_Cell::stringFromColumnIndex($col_start)) * 1024;
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$y1 = $y1 / self::sizeRow($sheet, $row_start + 1) * 256;
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$x2 = ($width + 1) / self::sizeCol($sheet, PHPExcel_Cell::stringFromColumnIndex($col_end)) * 1024; // Distance to right side of object
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$y2 = ($height + 1) / self::sizeRow($sheet, $row_end + 1) * 256; // Distance to bottom of object
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$startCoordinates = PHPExcel_Cell::stringFromColumnIndex($col_start) . ($row_start + 1);
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$endCoordinates = PHPExcel_Cell::stringFromColumnIndex($col_end) . ($row_end + 1);
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$twoAnchor = array(
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'startCoordinates' => $startCoordinates,
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'startOffsetX' => $x1,
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'startOffsetY' => $y1,
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'endCoordinates' => $endCoordinates,
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'endOffsetX' => $x2,
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'endOffsetY' => $y2,
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);
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return $twoAnchor;
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}
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}
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