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<?php/*** PHPExcel** Copyright (c) 2006 - 2013 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_Shared* @copyright Copyright (c) 2006 - 2013 PHPExcel (http://www.codeplex.com/PHPExcel)* @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL* @version ##VERSION##, ##DATE##*//*** PHPExcel_Shared_Drawing** @category PHPExcel* @package PHPExcel_Shared* @copyright Copyright (c) 2006 - 2013 PHPExcel (http://www.codeplex.com/PHPExcel)*/class PHPExcel_Shared_Drawing{/*** Convert pixels to EMU** @param int $pValue Value in pixels* @return int Value in EMU*/public static function pixelsToEMU($pValue = 0) {return round($pValue * 9525);}/*** Convert EMU to pixels** @param int $pValue Value in EMU* @return int Value in pixels*/public static function EMUToPixels($pValue = 0) {if ($pValue != 0) {return round($pValue / 9525);} else {return 0;}}/*** Convert pixels to column width. Exact algorithm not known.* By inspection of a real Excel file using Calibri 11, one finds 1000px ~ 142.85546875* This gives a conversion factor of 7. Also, we assume that pixels and font size are proportional.** @param int $pValue Value in pixels* @param PHPExcel_Style_Font $pDefaultFont Default font of the workbook* @return int Value in cell dimension*/public static function pixelsToCellDimension($pValue = 0, PHPExcel_Style_Font $pDefaultFont) {// Font name and size$name = $pDefaultFont->getName();$size = $pDefaultFont->getSize();if (isset(PHPExcel_Shared_Font::$defaultColumnWidths[$name][$size])) {// Exact width can be determined$colWidth = $pValue* PHPExcel_Shared_Font::$defaultColumnWidths[$name][$size]['width']/ PHPExcel_Shared_Font::$defaultColumnWidths[$name][$size]['px'];} else {// We don't have data for this particular font and size, use approximation by// extrapolating from Calibri 11$colWidth = $pValue * 11* PHPExcel_Shared_Font::$defaultColumnWidths['Calibri'][11]['width']/ PHPExcel_Shared_Font::$defaultColumnWidths['Calibri'][11]['px'] / $size;}return $colWidth;}/*** Convert column width from (intrinsic) Excel units to pixels** @param float $pValue Value in cell dimension* @param PHPExcel_Style_Font $pDefaultFont Default font of the workbook* @return int Value in pixels*/public static function cellDimensionToPixels($pValue = 0, PHPExcel_Style_Font $pDefaultFont) {// Font name and size$name = $pDefaultFont->getName();$size = $pDefaultFont->getSize();if (isset(PHPExcel_Shared_Font::$defaultColumnWidths[$name][$size])) {// Exact width can be determined$colWidth = $pValue* PHPExcel_Shared_Font::$defaultColumnWidths[$name][$size]['px']/ PHPExcel_Shared_Font::$defaultColumnWidths[$name][$size]['width'];} else {// We don't have data for this particular font and size, use approximation by// extrapolating from Calibri 11$colWidth = $pValue * $size* PHPExcel_Shared_Font::$defaultColumnWidths['Calibri'][11]['px']/ PHPExcel_Shared_Font::$defaultColumnWidths['Calibri'][11]['width'] / 11;}// Round pixels to closest integer$colWidth = (int) round($colWidth);return $colWidth;}/*** Convert pixels to points** @param int $pValue Value in pixels* @return int Value in points*/public static function pixelsToPoints($pValue = 0) {return $pValue * 0.67777777;}/*** Convert points to pixels** @param int $pValue Value in points* @return int Value in pixels*/public static function pointsToPixels($pValue = 0) {if ($pValue != 0) {return (int) ceil($pValue * 1.333333333);} else {return 0;}}/*** Convert degrees to angle** @param int $pValue Degrees* @return int Angle*/public static function degreesToAngle($pValue = 0) {return (int)round($pValue * 60000);}/*** Convert angle to degrees** @param int $pValue Angle* @return int Degrees*/public static function angleToDegrees($pValue = 0) {if ($pValue != 0) {return round($pValue / 60000);} else {return 0;}}/*** Create a new image from file. By alexander at alexauto dot nl** @link http://www.php.net/manual/en/function.imagecreatefromwbmp.php#86214* @param string $filename Path to Windows DIB (BMP) image* @return resource*/public static function imagecreatefrombmp($p_sFile){// Load the image into a string$file = fopen($p_sFile,"rb");$read = fread($file,10);while(!feof($file)&&($read<>""))$read .= fread($file,1024);$temp = unpack("H*",$read);$hex = $temp[1];$header = substr($hex,0,108);// Process the header// Structure: http://www.fastgraph.com/help/bmp_header_format.htmlif (substr($header,0,4)=="424d"){// Cut it in parts of 2 bytes$header_parts = str_split($header,2);// Get the width 4 bytes$width = hexdec($header_parts[19].$header_parts[18]);// Get the height 4 bytes$height = hexdec($header_parts[23].$header_parts[22]);// Unset the header paramsunset($header_parts);}// Define starting X and Y$x = 0;$y = 1;// Create newimage$image = imagecreatetruecolor($width,$height);// Grab the body from the image$body = substr($hex,108);// Calculate if padding at the end-line is needed// Divided by two to keep overview.// 1 byte = 2 HEX-chars$body_size = (strlen($body)/2);$header_size = ($width*$height);// Use end-line padding? Only when needed$usePadding = ($body_size>($header_size*3)+4);// Using a for-loop with index-calculation instaid of str_split to avoid large memory consumption// Calculate the next DWORD-position in the bodyfor ($i=0;$i<$body_size;$i+=3){// Calculate line-ending and paddingif ($x>=$width){// If padding needed, ignore image-padding// Shift i to the ending of the current 32-bit-blockif ($usePadding)$i += $width%4;// Reset horizontal position$x = 0;// Raise the height-position (bottom-up)$y++;// Reached the image-height? Break the for-loopif ($y>$height)break;}// Calculation of the RGB-pixel (defined as BGR in image-data)// Define $i_pos as absolute position in the body$i_pos = $i*2;$r = hexdec($body[$i_pos+4].$body[$i_pos+5]);$g = hexdec($body[$i_pos+2].$body[$i_pos+3]);$b = hexdec($body[$i_pos].$body[$i_pos+1]);// Calculate and draw the pixel$color = imagecolorallocate($image,$r,$g,$b);imagesetpixel($image,$x,$height-$y,$color);// Raise the horizontal position$x++;}// Unset the body / free the memoryunset($body);// Return image-objectreturn $image;}}