742 lines
29 KiB
PHP
742 lines
29 KiB
PHP
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<?php
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/**
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* PHPExcel
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*
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* Copyright (c) 2006 - 2015 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 - 2015 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 ##VERSION##, ##DATE##
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*/
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/**
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* PHPExcel_Shared_Font
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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 - 2015 PHPExcel (http://www.codeplex.com/PHPExcel)
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*/
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class PHPExcel_Shared_Font
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{
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/* Methods for resolving autosize value */
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const AUTOSIZE_METHOD_APPROX = 'approx';
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const AUTOSIZE_METHOD_EXACT = 'exact';
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private static $autoSizeMethods = array(
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self::AUTOSIZE_METHOD_APPROX,
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self::AUTOSIZE_METHOD_EXACT,
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);
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/** Character set codes used by BIFF5-8 in Font records */
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const CHARSET_ANSI_LATIN = 0x00;
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const CHARSET_SYSTEM_DEFAULT = 0x01;
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const CHARSET_SYMBOL = 0x02;
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const CHARSET_APPLE_ROMAN = 0x4D;
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const CHARSET_ANSI_JAPANESE_SHIFTJIS = 0x80;
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const CHARSET_ANSI_KOREAN_HANGUL = 0x81;
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const CHARSET_ANSI_KOREAN_JOHAB = 0x82;
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const CHARSET_ANSI_CHINESE_SIMIPLIFIED = 0x86; // gb2312
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const CHARSET_ANSI_CHINESE_TRADITIONAL = 0x88; // big5
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const CHARSET_ANSI_GREEK = 0xA1;
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const CHARSET_ANSI_TURKISH = 0xA2;
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const CHARSET_ANSI_VIETNAMESE = 0xA3;
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const CHARSET_ANSI_HEBREW = 0xB1;
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const CHARSET_ANSI_ARABIC = 0xB2;
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const CHARSET_ANSI_BALTIC = 0xBA;
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const CHARSET_ANSI_CYRILLIC = 0xCC;
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const CHARSET_ANSI_THAI = 0xDD;
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const CHARSET_ANSI_LATIN_II = 0xEE;
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const CHARSET_OEM_LATIN_I = 0xFF;
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// XXX: Constants created!
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/** Font filenames */
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const ARIAL = 'arial.ttf';
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const ARIAL_BOLD = 'arialbd.ttf';
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const ARIAL_ITALIC = 'ariali.ttf';
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const ARIAL_BOLD_ITALIC = 'arialbi.ttf';
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const CALIBRI = 'CALIBRI.TTF';
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const CALIBRI_BOLD = 'CALIBRIB.TTF';
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const CALIBRI_ITALIC = 'CALIBRII.TTF';
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const CALIBRI_BOLD_ITALIC = 'CALIBRIZ.TTF';
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const COMIC_SANS_MS = 'comic.ttf';
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const COMIC_SANS_MS_BOLD = 'comicbd.ttf';
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const COURIER_NEW = 'cour.ttf';
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const COURIER_NEW_BOLD = 'courbd.ttf';
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const COURIER_NEW_ITALIC = 'couri.ttf';
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const COURIER_NEW_BOLD_ITALIC = 'courbi.ttf';
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const GEORGIA = 'georgia.ttf';
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const GEORGIA_BOLD = 'georgiab.ttf';
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const GEORGIA_ITALIC = 'georgiai.ttf';
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const GEORGIA_BOLD_ITALIC = 'georgiaz.ttf';
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const IMPACT = 'impact.ttf';
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const LIBERATION_SANS = 'LiberationSans-Regular.ttf';
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const LIBERATION_SANS_BOLD = 'LiberationSans-Bold.ttf';
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const LIBERATION_SANS_ITALIC = 'LiberationSans-Italic.ttf';
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const LIBERATION_SANS_BOLD_ITALIC = 'LiberationSans-BoldItalic.ttf';
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const LUCIDA_CONSOLE = 'lucon.ttf';
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const LUCIDA_SANS_UNICODE = 'l_10646.ttf';
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const MICROSOFT_SANS_SERIF = 'micross.ttf';
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const PALATINO_LINOTYPE = 'pala.ttf';
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const PALATINO_LINOTYPE_BOLD = 'palab.ttf';
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const PALATINO_LINOTYPE_ITALIC = 'palai.ttf';
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const PALATINO_LINOTYPE_BOLD_ITALIC = 'palabi.ttf';
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const SYMBOL = 'symbol.ttf';
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const TAHOMA = 'tahoma.ttf';
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const TAHOMA_BOLD = 'tahomabd.ttf';
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const TIMES_NEW_ROMAN = 'times.ttf';
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const TIMES_NEW_ROMAN_BOLD = 'timesbd.ttf';
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const TIMES_NEW_ROMAN_ITALIC = 'timesi.ttf';
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const TIMES_NEW_ROMAN_BOLD_ITALIC = 'timesbi.ttf';
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const TREBUCHET_MS = 'trebuc.ttf';
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const TREBUCHET_MS_BOLD = 'trebucbd.ttf';
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const TREBUCHET_MS_ITALIC = 'trebucit.ttf';
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const TREBUCHET_MS_BOLD_ITALIC = 'trebucbi.ttf';
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const VERDANA = 'verdana.ttf';
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const VERDANA_BOLD = 'verdanab.ttf';
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const VERDANA_ITALIC = 'verdanai.ttf';
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const VERDANA_BOLD_ITALIC = 'verdanaz.ttf';
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/**
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* AutoSize method
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*
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* @var string
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*/
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private static $autoSizeMethod = self::AUTOSIZE_METHOD_APPROX;
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/**
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* Path to folder containing TrueType font .ttf files
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*
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* @var string
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*/
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private static $trueTypeFontPath = null;
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/**
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* How wide is a default column for a given default font and size?
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* Empirical data found by inspecting real Excel files and reading off the pixel width
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* in Microsoft Office Excel 2007.
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*
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* @var array
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*/
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public static $defaultColumnWidths = array(
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'Arial' => array(
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1 => array('px' => 24, 'width' => 12.00000000),
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2 => array('px' => 24, 'width' => 12.00000000),
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3 => array('px' => 32, 'width' => 10.66406250),
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4 => array('px' => 32, 'width' => 10.66406250),
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5 => array('px' => 40, 'width' => 10.00000000),
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6 => array('px' => 48, 'width' => 9.59765625),
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7 => array('px' => 48, 'width' => 9.59765625),
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8 => array('px' => 56, 'width' => 9.33203125),
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9 => array('px' => 64, 'width' => 9.14062500),
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10 => array('px' => 64, 'width' => 9.14062500),
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),
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'Calibri' => array(
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1 => array('px' => 24, 'width' => 12.00000000),
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2 => array('px' => 24, 'width' => 12.00000000),
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3 => array('px' => 32, 'width' => 10.66406250),
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4 => array('px' => 32, 'width' => 10.66406250),
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5 => array('px' => 40, 'width' => 10.00000000),
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6 => array('px' => 48, 'width' => 9.59765625),
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7 => array('px' => 48, 'width' => 9.59765625),
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8 => array('px' => 56, 'width' => 9.33203125),
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9 => array('px' => 56, 'width' => 9.33203125),
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10 => array('px' => 64, 'width' => 9.14062500),
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11 => array('px' => 64, 'width' => 9.14062500),
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),
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'Verdana' => array(
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1 => array('px' => 24, 'width' => 12.00000000),
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2 => array('px' => 24, 'width' => 12.00000000),
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3 => array('px' => 32, 'width' => 10.66406250),
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4 => array('px' => 32, 'width' => 10.66406250),
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5 => array('px' => 40, 'width' => 10.00000000),
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6 => array('px' => 48, 'width' => 9.59765625),
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7 => array('px' => 48, 'width' => 9.59765625),
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8 => array('px' => 64, 'width' => 9.14062500),
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9 => array('px' => 72, 'width' => 9.00000000),
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10 => array('px' => 72, 'width' => 9.00000000),
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),
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);
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/**
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* Set autoSize method
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*
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* @param string $pValue
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* @return boolean Success or failure
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*/
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public static function setAutoSizeMethod($pValue = self::AUTOSIZE_METHOD_APPROX)
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{
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if (!in_array($pValue, self::$autoSizeMethods)) {
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return false;
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}
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self::$autoSizeMethod = $pValue;
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return true;
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}
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/**
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* Get autoSize method
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*
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* @return string
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*/
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public static function getAutoSizeMethod()
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{
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return self::$autoSizeMethod;
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}
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/**
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* Set the path to the folder containing .ttf files. There should be a trailing slash.
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* Typical locations on variout some platforms:
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* <ul>
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* <li>C:/Windows/Fonts/</li>
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* <li>/usr/share/fonts/truetype/</li>
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* <li>~/.fonts/</li>
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* </ul>
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*
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* @param string $pValue
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*/
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public static function setTrueTypeFontPath($pValue = '')
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{
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self::$trueTypeFontPath = $pValue;
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}
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/**
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* Get the path to the folder containing .ttf files.
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*
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* @return string
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*/
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public static function getTrueTypeFontPath()
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{
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return self::$trueTypeFontPath;
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}
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/**
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* Calculate an (approximate) OpenXML column width, based on font size and text contained
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*
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* @param PHPExcel_Style_Font $font Font object
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* @param PHPExcel_RichText|string $cellText Text to calculate width
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* @param integer $rotation Rotation angle
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* @param PHPExcel_Style_Font|NULL $defaultFont Font object
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* @return integer Column width
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*/
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public static function calculateColumnWidth(PHPExcel_Style_Font $font, $cellText = '', $rotation = 0, PHPExcel_Style_Font $defaultFont = null)
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{
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// If it is rich text, use plain text
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if ($cellText instanceof PHPExcel_RichText) {
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$cellText = $cellText->getPlainText();
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}
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// Special case if there are one or more newline characters ("\n")
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if (strpos($cellText, "\n") !== false) {
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$lineTexts = explode("\n", $cellText);
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$lineWidths = array();
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foreach ($lineTexts as $lineText) {
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$lineWidths[] = self::calculateColumnWidth($font, $lineText, $rotation = 0, $defaultFont);
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}
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return max($lineWidths); // width of longest line in cell
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}
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// Try to get the exact text width in pixels
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$approximate = self::$autoSizeMethod == self::AUTOSIZE_METHOD_APPROX;
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if (!$approximate) {
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$columnWidthAdjust = ceil(self::getTextWidthPixelsExact('n', $font, 0) * 1.07);
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try {
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// Width of text in pixels excl. padding
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// and addition because Excel adds some padding, just use approx width of 'n' glyph
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$columnWidth = self::getTextWidthPixelsExact($cellText, $font, $rotation) + $columnWidthAdjust;
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} catch (PHPExcel_Exception $e) {
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$approximate = true;
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}
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}
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if ($approximate) {
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$columnWidthAdjust = self::getTextWidthPixelsApprox('n', $font, 0);
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// Width of text in pixels excl. padding, approximation
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// and addition because Excel adds some padding, just use approx width of 'n' glyph
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$columnWidth = self::getTextWidthPixelsApprox($cellText, $font, $rotation) + $columnWidthAdjust;
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}
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// Convert from pixel width to column width
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$columnWidth = PHPExcel_Shared_Drawing::pixelsToCellDimension($columnWidth, $defaultFont);
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// Return
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return round($columnWidth, 6);
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}
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/**
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* Get GD text width in pixels for a string of text in a certain font at a certain rotation angle
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*
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* @param string $text
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* @param PHPExcel_Style_Font
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* @param int $rotation
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* @return int
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* @throws PHPExcel_Exception
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*/
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public static function getTextWidthPixelsExact($text, PHPExcel_Style_Font $font, $rotation = 0)
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{
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if (!function_exists('imagettfbbox')) {
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throw new PHPExcel_Exception('GD library needs to be enabled');
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}
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// font size should really be supplied in pixels in GD2,
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// but since GD2 seems to assume 72dpi, pixels and points are the same
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$fontFile = self::getTrueTypeFontFileFromFont($font);
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$textBox = imagettfbbox($font->getSize(), $rotation, $fontFile, $text);
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