File Source for Drawing.php

<?php
/**
* PHPExcel
*
* Copyright (c) 2006 - 2010 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 - 2010 PHPExcel (http://www.codeplex.com/PHPExcel)
* @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL
* @version 1.7.2, 2010-01-11
*/
/** PHPExcel root */
if (!defined('PHPEXCEL_ROOT')) {
/**
* @ignore
*/
define('PHPEXCEL_ROOT', dirname(__FILE__) . '/../../');
}
/** PHPExcel_Shared_String */
require_once PHPEXCEL_ROOT . 'PHPExcel/Shared/Font.php';
/**
* PHPExcel_Shared_Drawing
*
* @category PHPExcel
* @package PHPExcel_Shared
* @copyright Copyright (c) 2006 - 2010 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;
}
}
}

Source for file Drawing.php