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Font.php

Last change on this file was 780, checked in by dungnv, 10 years ago

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1	<?php
2	/**
3	* PHPExcel
4	*
5	* Copyright (c) 2006 - 2014 PHPExcel
6	*
7	* This library is free software; you can redistribute it and/or
8	* modify it under the terms of the GNU Lesser General Public
9	* License as published by the Free Software Foundation; either
10	* version 2.1 of the License, or (at your option) any later version.
11	*
12	* This library is distributed in the hope that it will be useful,
13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15	* Lesser General Public License for more details.
16	*
17	* You should have received a copy of the GNU Lesser General Public
18	* License along with this library; if not, write to the Free Software
19	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20	*
21	* @category PHPExcel
22	* @package PHPExcel_Shared
23	* @copyright Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
24	* @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL
25	* @version 1.8.0, 2014-03-02
26	*/
27
28
29	/**
30	* PHPExcel_Shared_Font
31	*
32	* @category PHPExcel
33	* @package PHPExcel_Shared
34	* @copyright Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
35	*/
36	class PHPExcel_Shared_Font
37	{
38	/* Methods for resolving autosize value */
39	const AUTOSIZE_METHOD_APPROX = 'approx';
40	const AUTOSIZE_METHOD_EXACT = 'exact';
41
42	private static $_autoSizeMethods = array(
43	self::AUTOSIZE_METHOD_APPROX,
44	self::AUTOSIZE_METHOD_EXACT,
45	);
46
47	/** Character set codes used by BIFF5-8 in Font records */
48	const CHARSET_ANSI_LATIN = 0x00;
49	const CHARSET_SYSTEM_DEFAULT = 0x01;
50	const CHARSET_SYMBOL = 0x02;
51	const CHARSET_APPLE_ROMAN = 0x4D;
52	const CHARSET_ANSI_JAPANESE_SHIFTJIS = 0x80;
53	const CHARSET_ANSI_KOREAN_HANGUL = 0x81;
54	const CHARSET_ANSI_KOREAN_JOHAB = 0x82;
55	const CHARSET_ANSI_CHINESE_SIMIPLIFIED = 0x86; // gb2312
56	const CHARSET_ANSI_CHINESE_TRADITIONAL = 0x88; // big5
57	const CHARSET_ANSI_GREEK = 0xA1;
58	const CHARSET_ANSI_TURKISH = 0xA2;
59	const CHARSET_ANSI_VIETNAMESE = 0xA3;
60	const CHARSET_ANSI_HEBREW = 0xB1;
61	const CHARSET_ANSI_ARABIC = 0xB2;
62	const CHARSET_ANSI_BALTIC = 0xBA;
63	const CHARSET_ANSI_CYRILLIC = 0xCC;
64	const CHARSET_ANSI_THAI = 0xDD;
65	const CHARSET_ANSI_LATIN_II = 0xEE;
66	const CHARSET_OEM_LATIN_I = 0xFF;
67
68	// XXX: Constants created!
69	/** Font filenames */
70	const ARIAL = 'arial.ttf';
71	const ARIAL_BOLD = 'arialbd.ttf';
72	const ARIAL_ITALIC = 'ariali.ttf';
73	const ARIAL_BOLD_ITALIC = 'arialbi.ttf';
74
75	const CALIBRI = 'CALIBRI.TTF';
76	const CALIBRI_BOLD = 'CALIBRIB.TTF';
77	const CALIBRI_ITALIC = 'CALIBRII.TTF';
78	const CALIBRI_BOLD_ITALIC = 'CALIBRIZ.TTF';
79
80	const COMIC_SANS_MS = 'comic.ttf';
81	const COMIC_SANS_MS_BOLD = 'comicbd.ttf';
82
83	const COURIER_NEW = 'cour.ttf';
84	const COURIER_NEW_BOLD = 'courbd.ttf';
85	const COURIER_NEW_ITALIC = 'couri.ttf';
86	const COURIER_NEW_BOLD_ITALIC = 'courbi.ttf';
87
88	const GEORGIA = 'georgia.ttf';
89	const GEORGIA_BOLD = 'georgiab.ttf';
90	const GEORGIA_ITALIC = 'georgiai.ttf';
91	const GEORGIA_BOLD_ITALIC = 'georgiaz.ttf';
92
93	const IMPACT = 'impact.ttf';
94
95	const LIBERATION_SANS = 'LiberationSans-Regular.ttf';
96	const LIBERATION_SANS_BOLD = 'LiberationSans-Bold.ttf';
97	const LIBERATION_SANS_ITALIC = 'LiberationSans-Italic.ttf';
98	const LIBERATION_SANS_BOLD_ITALIC = 'LiberationSans-BoldItalic.ttf';
99
100	const LUCIDA_CONSOLE = 'lucon.ttf';
101	const LUCIDA_SANS_UNICODE = 'l_10646.ttf';
102
103	const MICROSOFT_SANS_SERIF = 'micross.ttf';
104
105	const PALATINO_LINOTYPE = 'pala.ttf';
106	const PALATINO_LINOTYPE_BOLD = 'palab.ttf';
107	const PALATINO_LINOTYPE_ITALIC = 'palai.ttf';
108	const PALATINO_LINOTYPE_BOLD_ITALIC = 'palabi.ttf';
109
110	const SYMBOL = 'symbol.ttf';
111
112	const TAHOMA = 'tahoma.ttf';
113	const TAHOMA_BOLD = 'tahomabd.ttf';
114
115	const TIMES_NEW_ROMAN = 'times.ttf';
116	const TIMES_NEW_ROMAN_BOLD = 'timesbd.ttf';
117	const TIMES_NEW_ROMAN_ITALIC = 'timesi.ttf';
118	const TIMES_NEW_ROMAN_BOLD_ITALIC = 'timesbi.ttf';
119
120	const TREBUCHET_MS = 'trebuc.ttf';
121	const TREBUCHET_MS_BOLD = 'trebucbd.ttf';
122	const TREBUCHET_MS_ITALIC = 'trebucit.ttf';
123	const TREBUCHET_MS_BOLD_ITALIC = 'trebucbi.ttf';
124
125	const VERDANA = 'verdana.ttf';
126	const VERDANA_BOLD = 'verdanab.ttf';
127	const VERDANA_ITALIC = 'verdanai.ttf';
128	const VERDANA_BOLD_ITALIC = 'verdanaz.ttf';
129
130	/**
131	* AutoSize method
132	*
133	* @var string
134	*/
135	private static $autoSizeMethod = self::AUTOSIZE_METHOD_APPROX;
136
137	/**
138	* Path to folder containing TrueType font .ttf files
139	*
140	* @var string
141	*/
142	private static $trueTypeFontPath = null;
143
144	/**
145	* How wide is a default column for a given default font and size?
146	* Empirical data found by inspecting real Excel files and reading off the pixel width
147	* in Microsoft Office Excel 2007.
148	*
149	* @var array
150	*/
151	public static $defaultColumnWidths = array(
152	'Arial' => array(
153	1 => array('px' => 24, 'width' => 12.00000000),
154	2 => array('px' => 24, 'width' => 12.00000000),
155	3 => array('px' => 32, 'width' => 10.66406250),
156	4 => array('px' => 32, 'width' => 10.66406250),
157	5 => array('px' => 40, 'width' => 10.00000000),
158	6 => array('px' => 48, 'width' => 9.59765625),
159	7 => array('px' => 48, 'width' => 9.59765625),
160	8 => array('px' => 56, 'width' => 9.33203125),
161	9 => array('px' => 64, 'width' => 9.14062500),
162	10 => array('px' => 64, 'width' => 9.14062500),
163	),
164	'Calibri' => array(
165	1 => array('px' => 24, 'width' => 12.00000000),
166	2 => array('px' => 24, 'width' => 12.00000000),
167	3 => array('px' => 32, 'width' => 10.66406250),
168	4 => array('px' => 32, 'width' => 10.66406250),
169	5 => array('px' => 40, 'width' => 10.00000000),
170	6 => array('px' => 48, 'width' => 9.59765625),
171	7 => array('px' => 48, 'width' => 9.59765625),
172	8 => array('px' => 56, 'width' => 9.33203125),
173	9 => array('px' => 56, 'width' => 9.33203125),
174	10 => array('px' => 64, 'width' => 9.14062500),
175	11 => array('px' => 64, 'width' => 9.14062500),
176	),
177	'Verdana' => array(
178	1 => array('px' => 24, 'width' => 12.00000000),
179	2 => array('px' => 24, 'width' => 12.00000000),
180	3 => array('px' => 32, 'width' => 10.66406250),
181	4 => array('px' => 32, 'width' => 10.66406250),
182	5 => array('px' => 40, 'width' => 10.00000000),
183	6 => array('px' => 48, 'width' => 9.59765625),
184	7 => array('px' => 48, 'width' => 9.59765625),
185	8 => array('px' => 64, 'width' => 9.14062500),
186	9 => array('px' => 72, 'width' => 9.00000000),
187	10 => array('px' => 72, 'width' => 9.00000000),
188	),
189	);
190
191	/**
192	* Set autoSize method
193	*
194	* @param string $pValue
195	* @return boolean Success or failure
196	*/
197	public static function setAutoSizeMethod($pValue = self::AUTOSIZE_METHOD_APPROX)
198	{
199	if (!in_array($pValue,self::$_autoSizeMethods)) {
200	return FALSE;
201	}
202
203	self::$autoSizeMethod = $pValue;
204
205	return TRUE;
206	}
207
208	/**
209	* Get autoSize method
210	*
211	* @return string
212	*/
213	public static function getAutoSizeMethod()
214	{
215	return self::$autoSizeMethod;
216	}
217
218	/**
219	* Set the path to the folder containing .ttf files. There should be a trailing slash.
220	* Typical locations on variout some platforms:
221	* <ul>
222	* <li>C:/Windows/Fonts/</li>
223	* <li>/usr/share/fonts/truetype/</li>
224	* <li>~/.fonts/</li>
225	* </ul>
226	*
227	* @param string $pValue
228	*/
229	public static function setTrueTypeFontPath($pValue = '')
230	{
231	self::$trueTypeFontPath = $pValue;
232	}
233
234	/**
235	* Get the path to the folder containing .ttf files.
236	*
237	* @return string
238	*/
239	public static function getTrueTypeFontPath()
240	{
241	return self::$trueTypeFontPath;
242	}
243
244	/**
245	* Calculate an (approximate) OpenXML column width, based on font size and text contained
246	*
247	* @param PHPExcel_Style_Font $font Font object
248	* @param PHPExcel_RichText\|string $cellText Text to calculate width
249	* @param integer $rotation Rotation angle
250	* @param PHPExcel_Style_Font\|NULL $defaultFont Font object
251	* @return integer Column width
252	*/
253	public static function calculateColumnWidth(PHPExcel_Style_Font $font, $cellText = '', $rotation = 0, PHPExcel_Style_Font $defaultFont = null) {
254
255	// If it is rich text, use plain text
256	if ($cellText instanceof PHPExcel_RichText) {
257	$cellText = $cellText->getPlainText();
258	}
259
260	// Special case if there are one or more newline characters ("\n")
261	if (strpos($cellText, "\n") !== false) {
262	$lineTexts = explode("\n", $cellText);
263	$lineWitdhs = array();
264	foreach ($lineTexts as $lineText) {
265	$lineWidths[] = self::calculateColumnWidth($font, $lineText, $rotation = 0, $defaultFont);
266	}
267	return max($lineWidths); // width of longest line in cell
268	}
269
270	// Try to get the exact text width in pixels
271	try {
272	// If autosize method is set to 'approx', use approximation
273	if (self::$autoSizeMethod == self::AUTOSIZE_METHOD_APPROX) {
274	throw new PHPExcel_Exception('AutoSize method is set to approx');
275	}
276
277	// Width of text in pixels excl. padding
278	$columnWidth = self::getTextWidthPixelsExact($cellText, $font, $rotation);
279
280	// Excel adds some padding, use 1.07 of the width of an 'n' glyph
281	$columnWidth += ceil(self::getTextWidthPixelsExact('0', $font, 0) * 1.07); // pixels incl. padding
282
283	} catch (PHPExcel_Exception $e) {
284	// Width of text in pixels excl. padding, approximation
285	$columnWidth = self::getTextWidthPixelsApprox($cellText, $font, $rotation);
286
287	// Excel adds some padding, just use approx width of 'n' glyph
288	$columnWidth += self::getTextWidthPixelsApprox('n', $font, 0);
289	}
290
291	// Convert from pixel width to column width
292	$columnWidth = PHPExcel_Shared_Drawing::pixelsToCellDimension($columnWidth, $defaultFont);
293
294	// Return
295	return round($columnWidth, 6);
296	}
297
298	/**
299	* Get GD text width in pixels for a string of text in a certain font at a certain rotation angle
300	*
301	* @param string $text
302	* @param PHPExcel_Style_Font
303	* @param int $rotation
304	* @return int
305	* @throws PHPExcel_Exception
306	*/
307	public static function getTextWidthPixelsExact($text, PHPExcel_Style_Font $font, $rotation = 0) {
308	if (!function_exists('imagettfbbox')) {
309	throw new PHPExcel_Exception('GD library needs to be enabled');
310	}
311
312	// font size should really be supplied in pixels in GD2,
313	// but since GD2 seems to assume 72dpi, pixels and points are the same
314	$fontFile = self::getTrueTypeFontFileFromFont($font);
315	$textBox = imagettfbbox($font->getSize(), $rotation, $fontFile, $text);
316
317	// Get corners positions
318	$lowerLeftCornerX = $textBox[0];
319	$lowerLeftCornerY = $textBox[1];
320	$lowerRightCornerX = $textBox[2];
321	$lowerRightCornerY = $textBox[3];
322	$upperRightCornerX = $textBox[4];
323	$upperRightCornerY = $textBox[5];
324	$upperLeftCornerX = $textBox[6];
325	$upperLeftCornerY = $textBox[7];
326
327	// Consider the rotation when calculating the width
328	$textWidth = max($lowerRightCornerX - $upperLeftCornerX, $upperRightCornerX - $lowerLeftCornerX);
329
330	return $textWidth;
331	}
332
333	/**
334	* Get approximate width in pixels for a string of text in a certain font at a certain rotation angle
335	*
336	* @param string $columnText
337	* @param PHPExcel_Style_Font $font
338	* @param int $rotation
339	* @return int Text width in pixels (no padding added)
340	*/
341	public static function getTextWidthPixelsApprox($columnText, PHPExcel_Style_Font $font = null, $rotation = 0)
342	{
343	$fontName = $font->getName();
344	$fontSize = $font->getSize();
345
346	// Calculate column width in pixels. We assume fixed glyph width. Result varies with font name and size.
347	switch ($fontName) {
348	case 'Calibri':
349	// value 8.26 was found via interpolation by inspecting real Excel files with Calibri 11 font.
350	$columnWidth = (int) (8.26 * PHPExcel_Shared_String::CountCharacters($columnText));
351	$columnWidth = $columnWidth * $fontSize / 11; // extrapolate from font size
352	break;
353
354	case 'Arial':
355	// value 7 was found via interpolation by inspecting real Excel files with Arial 10 font.
356	$columnWidth = (int) (7 * PHPExcel_Shared_String::CountCharacters($columnText));
357	$columnWidth = $columnWidth * $fontSize / 10; // extrapolate from font size
358	break;
359
360	case 'Verdana':
361	// value 8 was found via interpolation by inspecting real Excel files with Verdana 10 font.
362	$columnWidth = (int) (8 * PHPExcel_Shared_String::CountCharacters($columnText));
363	$columnWidth = $columnWidth * $fontSize / 10; // extrapolate from font size
364	break;
365
366	default:
367	// just assume Calibri
368	$columnWidth = (int) (8.26 * PHPExcel_Shared_String::CountCharacters($columnText));
369	$columnWidth = $columnWidth * $fontSize / 11; // extrapolate from font size
370	break;
371	}
372
373	// Calculate approximate rotated column width
374	if ($rotation !== 0) {
375	if ($rotation == -165) {
376	// stacked text
377	$columnWidth = 4; // approximation
378	} else {
379	// rotated text
380	$columnWidth = $columnWidth * cos(deg2rad($rotation))
381	+ $fontSize * abs(sin(deg2rad($rotation))) / 5; // approximation
382	}
383	}
384
385	// pixel width is an integer
386	$columnWidth = (int) $columnWidth;
387	return $columnWidth;
388	}
389
390	/**
391	* Calculate an (approximate) pixel size, based on a font points size
392	*
393	* @param int $fontSizeInPoints Font size (in points)
394	* @return int Font size (in pixels)
395	*/
396	public static function fontSizeToPixels($fontSizeInPoints = 11) {
397	return (int) ((4 / 3) * $fontSizeInPoints);
398	}
399
400	/**
401	* Calculate an (approximate) pixel size, based on inch size
402	*
403	* @param int $sizeInInch Font size (in inch)
404	* @return int Size (in pixels)
405	*/
406	public static function inchSizeToPixels($sizeInInch = 1) {
407	return ($sizeInInch * 96);
408	}
409
410	/**
411	* Calculate an (approximate) pixel size, based on centimeter size
412	*
413	* @param int $sizeInCm Font size (in centimeters)
414	* @return int Size (in pixels)
415	*/
416	public static function centimeterSizeToPixels($sizeInCm = 1) {
417	return ($sizeInCm * 37.795275591);
418	}
419
420	/**
421	* Returns the font path given the font
422	*
423	* @param PHPExcel_Style_Font
424	* @return string Path to TrueType font file
425	*/
426	public static function getTrueTypeFontFileFromFont($font) {
427	if (!file_exists(self::$trueTypeFontPath) \|\| !is_dir(self::$trueTypeFontPath)) {
428	throw new PHPExcel_Exception('Valid directory to TrueType Font files not specified');
429	}
430
431	$name = $font->getName();
432	$bold = $font->getBold();
433	$italic = $font->getItalic();
434
435	// Check if we can map font to true type font file
436	switch ($name) {
437	case 'Arial':
438	$fontFile = (
439	$bold ? ($italic ? self::ARIAL_BOLD_ITALIC : self::ARIAL_BOLD)
440	: ($italic ? self::ARIAL_ITALIC : self::ARIAL)
441	);
442	break;
443
444	case 'Calibri':
445	$fontFile = (
446	$bold ? ($italic ? self::CALIBRI_BOLD_ITALIC : self::CALIBRI_BOLD)
447	: ($italic ? self::CALIBRI_ITALIC : self::CALIBRI)
448	);
449	break;
450
451	case 'Courier New':
452	$fontFile = (
453	$bold ? ($italic ? self::COURIER_NEW_BOLD_ITALIC : self::COURIER_NEW_BOLD)
454	: ($italic ? self::COURIER_NEW_ITALIC : self::COURIER_NEW)
455	);
456	break;
457
458	case 'Comic Sans MS':
459	$fontFile = (
460	$bold ? self::COMIC_SANS_MS_BOLD : self::COMIC_SANS_MS
461	);
462	break;
463
464	case 'Georgia':
465	$fontFile = (
466	$bold ? ($italic ? self::GEORGIA_BOLD_ITALIC : self::GEORGIA_BOLD)
467	: ($italic ? self::GEORGIA_ITALIC : self::GEORGIA)
468	);
469	break;
470
471	case 'Impact':
472	$fontFile = self::IMPACT;
473	break;
474
475	case 'Liberation Sans':
476	$fontFile = (
477	$bold ? ($italic ? self::LIBERATION_SANS_BOLD_ITALIC : self::LIBERATION_SANS_BOLD)
478	: ($italic ? self::LIBERATION_SANS_ITALIC : self::LIBERATION_SANS)
479	);
480	break;
481
482	case 'Lucida Console':
483	$fontFile = self::LUCIDA_CONSOLE;
484	break;
485
486	case 'Lucida Sans Unicode':
487	$fontFile = self::LUCIDA_SANS_UNICODE;
488	break;
489
490	case 'Microsoft Sans Serif':
491	$fontFile = self::MICROSOFT_SANS_SERIF;
492	break;
493
494	case 'Palatino Linotype':
495	$fontFile = (
496	$bold ? ($italic ? self::PALATINO_LINOTYPE_BOLD_ITALIC : self::PALATINO_LINOTYPE_BOLD)
497	: ($italic ? self::PALATINO_LINOTYPE_ITALIC : self::PALATINO_LINOTYPE)
498	);
499	break;
500
501	case 'Symbol':
502	$fontFile = self::SYMBOL;
503	break;
504
505	case 'Tahoma':
506	$fontFile = (
507	$bold ? self::TAHOMA_BOLD : self::TAHOMA
508	);
509	break;
510
511	case 'Times New Roman':
512	$fontFile = (
513	$bold ? ($italic ? self::TIMES_NEW_ROMAN_BOLD_ITALIC : self::TIMES_NEW_ROMAN_BOLD)
514	: ($italic ? self::TIMES_NEW_ROMAN_ITALIC : self::TIMES_NEW_ROMAN)
515	);
516	break;
517
518	case 'Trebuchet MS':
519	$fontFile = (
520	$bold ? ($italic ? self::TREBUCHET_MS_BOLD_ITALIC : self::TREBUCHET_MS_BOLD)
521	: ($italic ? self::TREBUCHET_MS_ITALIC : self::TREBUCHET_MS)
522	);
523	break;
524
525	case 'Verdana':
526	$fontFile = (
527	$bold ? ($italic ? self::VERDANA_BOLD_ITALIC : self::VERDANA_BOLD)
528	: ($italic ? self::VERDANA_ITALIC : self::VERDANA)
529	);
530	break;
531
532	default:
533	throw new PHPExcel_Exception('Unknown font name "'. $name .'". Cannot map to TrueType font file');
534	break;
535	}
536
537	$fontFile = self::$trueTypeFontPath . $fontFile;
538
539	// Check if file actually exists
540	if (!file_exists($fontFile)) {
541	throw New PHPExcel_Exception('TrueType Font file not found');
542	}
543
544	return $fontFile;
545	}
546
547	/**
548	* Returns the associated charset for the font name.
549	*
550	* @param string $name Font name
551	* @return int Character set code
552	*/
553	public static function getCharsetFromFontName($name)
554	{
555	switch ($name) {
556	// Add more cases. Check FONT records in real Excel files.
557	case 'EucrosiaUPC': return self::CHARSET_ANSI_THAI;
558	case 'Wingdings': return self::CHARSET_SYMBOL;
559	case 'Wingdings 2': return self::CHARSET_SYMBOL;
560	case 'Wingdings 3': return self::CHARSET_SYMBOL;
561	default: return self::CHARSET_ANSI_LATIN;
562	}
563	}
564
565	/**
566	* Get the effective column width for columns without a column dimension or column with width -1
567	* For example, for Calibri 11 this is 9.140625 (64 px)
568	*
569	* @param PHPExcel_Style_Font $font The workbooks default font
570	* @param boolean $pPixels true = return column width in pixels, false = return in OOXML units
571	* @return mixed Column width
572	*/
573	public static function getDefaultColumnWidthByFont(PHPExcel_Style_Font $font, $pPixels = false)
574	{
575	if (isset(self::$defaultColumnWidths[$font->getName()][$font->getSize()])) {
576	// Exact width can be determined
577	$columnWidth = $pPixels ?
578	self::$defaultColumnWidths[$font->getName()][$font->getSize()]['px']
579	: self::$defaultColumnWidths[$font->getName()][$font->getSize()]['width'];
580
581	} else {
582	// We don't have data for this particular font and size, use approximation by
583	// extrapolating from Calibri 11
584	$columnWidth = $pPixels ?
585	self::$defaultColumnWidths['Calibri'][11]['px']
586	: self::$defaultColumnWidths['Calibri'][11]['width'];
587	$columnWidth = $columnWidth * $font->getSize() / 11;
588
589	// Round pixels to closest integer
590	if ($pPixels) {
591	$columnWidth = (int) round($columnWidth);
592	}
593	}
594
595	return $columnWidth;
596	}
597
598	/**
599	* Get the effective row height for rows without a row dimension or rows with height -1
600	* For example, for Calibri 11 this is 15 points
601	*
602	* @param PHPExcel_Style_Font $font The workbooks default font
603	* @return float Row height in points
604	*/
605	public static function getDefaultRowHeightByFont(PHPExcel_Style_Font $font)
606	{
607	switch ($font->getName()) {
608	case 'Arial':
609	switch ($font->getSize()) {
610	case 10:
611	// inspection of Arial 10 workbook says 12.75pt ~17px
612	$rowHeight = 12.75;
613	break;
614
615	case 9:
616	// inspection of Arial 9 workbook says 12.00pt ~16px
617	$rowHeight = 12;
618	break;
619
620	case 8:
621	// inspection of Arial 8 workbook says 11.25pt ~15px
622	$rowHeight = 11.25;
623	break;
624
625	case 7:
626	// inspection of Arial 7 workbook says 9.00pt ~12px
627	$rowHeight = 9;
628	break;
629
630	case 6:
631	case 5:
632	// inspection of Arial 5,6 workbook says 8.25pt ~11px
633	$rowHeight = 8.25;
634	break;
635
636	case 4:
637	// inspection of Arial 4 workbook says 6.75pt ~9px
638	$rowHeight = 6.75;
639	break;
640
641	case 3:
642	// inspection of Arial 3 workbook says 6.00pt ~8px
643	$rowHeight = 6;
644	break;
645
646	case 2:
647	case 1:
648	// inspection of Arial 1,2 workbook says 5.25pt ~7px
649	$rowHeight = 5.25;
650	break;
651
652	default:
653	// use Arial 10 workbook as an approximation, extrapolation
654	$rowHeight = 12.75 * $font->getSize() / 10;
655	break;
656	}
657	break;
658
659	case 'Calibri':
660	switch ($font->getSize()) {
661	case 11:
662	// inspection of Calibri 11 workbook says 15.00pt ~20px
663	$rowHeight = 15;
664	break;
665
666	case 10:
667	// inspection of Calibri 10 workbook says 12.75pt ~17px
668	$rowHeight = 12.75;
669	break;
670
671	case 9:
672	// inspection of Calibri 9 workbook says 12.00pt ~16px
673	$rowHeight = 12;
674	break;
675
676	case 8:
677	// inspection of Calibri 8 workbook says 11.25pt ~15px
678	$rowHeight = 11.25;
679	break;
680
681	case 7:
682	// inspection of Calibri 7 workbook says 9.00pt ~12px
683	$rowHeight = 9;
684	break;
685
686	case 6:
687	case 5:
688	// inspection of Calibri 5,6 workbook says 8.25pt ~11px
689	$rowHeight = 8.25;
690	break;
691
692	case 4:
693	// inspection of Calibri 4 workbook says 6.75pt ~9px
694	$rowHeight = 6.75;
695	break;
696
697	case 3:
698	// inspection of Calibri 3 workbook says 6.00pt ~8px
699	$rowHeight = 6.00;
700	break;
701
702	case 2:
703	case 1:
704	// inspection of Calibri 1,2 workbook says 5.25pt ~7px
705	$rowHeight = 5.25;
706	break;
707
708	default:
709	// use Calibri 11 workbook as an approximation, extrapolation
710	$rowHeight = 15 * $font->getSize() / 11;
711	break;
712	}
713	break;
714
715	case 'Verdana':
716	switch ($font->getSize()) {
717	case 10:
718	// inspection of Verdana 10 workbook says 12.75pt ~17px
719	$rowHeight = 12.75;
720	break;
721
722	case 9:
723	// inspection of Verdana 9 workbook says 11.25pt ~15px
724	$rowHeight = 11.25;
725	break;
726
727	case 8:
728	// inspection of Verdana 8 workbook says 10.50pt ~14px
729	$rowHeight = 10.50;
730	break;
731
732	case 7:
733	// inspection of Verdana 7 workbook says 9.00pt ~12px
734	$rowHeight = 9.00;
735	break;
736
737	case 6:
738	case 5:
739	// inspection of Verdana 5,6 workbook says 8.25pt ~11px
740	$rowHeight = 8.25;
741	break;
742
743	case 4:
744	// inspection of Verdana 4 workbook says 6.75pt ~9px
745	$rowHeight = 6.75;
746	break;
747
748	case 3:
749	// inspection of Verdana 3 workbook says 6.00pt ~8px
750	$rowHeight = 6;
751	break;
752
753	case 2:
754	case 1:
755	// inspection of Verdana 1,2 workbook says 5.25pt ~7px
756	$rowHeight = 5.25;
757	break;
758
759	default:
760	// use Verdana 10 workbook as an approximation, extrapolation
761	$rowHeight = 12.75 * $font->getSize() / 10;
762	break;
763	}
764	break;
765
766	default:
767	// just use Calibri as an approximation
768	$rowHeight = 15 * $font->getSize() / 11;
769	break;
770	}
771
772	return $rowHeight;
773	}
774
775	}

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source: pro-violet-viettel/www/deploy/20150304/application/libraries/PHPExcel/Shared/Font.php

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