778 lines
23 KiB
PHP
778 lines
23 KiB
PHP
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<?php
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/**
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* Zend Framework
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*
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* LICENSE
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*
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* This source file is subject to the new BSD license that is bundled
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* with this package in the file LICENSE.txt.
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* It is also available through the world-wide-web at this URL:
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* http://framework.zend.com/license/new-bsd
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* If you did not receive a copy of the license and are unable to
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* obtain it through the world-wide-web, please send an email
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* to license@zend.com so we can send you a copy immediately.
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*
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* @category Zend
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* @package Zend_Pdf
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* @subpackage Fonts
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* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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* @version $Id: Font.php 16541 2009-07-07 06:59:03Z bkarwin $
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*/
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/** Zend_Pdf_FileParserDataSource */
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require_once 'Zend/Pdf/FileParserDataSource.php';
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/** Zend_Pdf_FileParserDataSource_File */
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require_once 'Zend/Pdf/FileParserDataSource/File.php';
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/** Zend_Pdf_FileParserDataSource_String */
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require_once 'Zend/Pdf/FileParserDataSource/String.php';
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/** Zend_Pdf_FileParser_Font_OpenType_TrueType */
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require_once 'Zend/Pdf/FileParser/Font/OpenType/TrueType.php';
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/** Zend_Pdf_Resource_Font_Simple_Parsed_TrueType */
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require_once 'Zend/Pdf/Resource/Font/Simple/Parsed/TrueType.php';
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/** Zend_Pdf_Resource_Font_Type0 */
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require_once 'Zend/Pdf/Resource/Font/Type0.php';
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/** Zend_Pdf_Resource_Font_CidFont_TrueType */
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require_once 'Zend/Pdf/Resource/Font/CidFont/TrueType.php';
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/** Zend_Pdf_Resource_Font_Simple_Standard_Courier */
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require_once 'Zend/Pdf/Resource/Font/Simple/Standard/Courier.php';
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/** Zend_Pdf_Resource_Font_Simple_Standard_CourierBold */
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require_once 'Zend/Pdf/Resource/Font/Simple/Standard/CourierBold.php';
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/** Zend_Pdf_Resource_Font_Simple_Standard_CourierBoldOblique */
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require_once 'Zend/Pdf/Resource/Font/Simple/Standard/CourierBoldOblique.php';
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/** Zend_Pdf_Resource_Font_Simple_Standard_CourierOblique */
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require_once 'Zend/Pdf/Resource/Font/Simple/Standard/CourierOblique.php';
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/** Zend_Pdf_Resource_Font_Simple_Standard_Helvetica */
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require_once 'Zend/Pdf/Resource/Font/Simple/Standard/Helvetica.php';
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/** Zend_Pdf_Resource_Font_Simple_Standard_HelveticaBold */
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require_once 'Zend/Pdf/Resource/Font/Simple/Standard/HelveticaBold.php';
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/** Zend_Pdf_Resource_Font_Simple_Standard_HelveticaBoldOblique */
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require_once 'Zend/Pdf/Resource/Font/Simple/Standard/HelveticaBoldOblique.php';
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/** Zend_Pdf_Resource_Font_Simple_Standard_HelveticaOblique */
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require_once 'Zend/Pdf/Resource/Font/Simple/Standard/HelveticaOblique.php';
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/** Zend_Pdf_Resource_Font_Simple_Standard_Symbol */
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require_once 'Zend/Pdf/Resource/Font/Simple/Standard/Symbol.php';
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/** Zend_Pdf_Resource_Font_Simple_Standard_TimesBold */
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require_once 'Zend/Pdf/Resource/Font/Simple/Standard/TimesBold.php';
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/** Zend_Pdf_Resource_Font_Simple_Standard_TimesBoldItalic */
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require_once 'Zend/Pdf/Resource/Font/Simple/Standard/TimesBoldItalic.php';
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/** Zend_Pdf_Resource_Font_Simple_Standard_TimesItalic */
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require_once 'Zend/Pdf/Resource/Font/Simple/Standard/TimesItalic.php';
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/** Zend_Pdf_Resource_Font_Simple_Standard_TimesRoman */
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require_once 'Zend/Pdf/Resource/Font/Simple/Standard/TimesRoman.php';
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/** Zend_Pdf_Resource_Font_Simple_Standard_ZapfDingbats */
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require_once 'Zend/Pdf/Resource/Font/Simple/Standard/ZapfDingbats.php';
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/** Zend_Pdf_Resource_Font_Extracted */
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require_once 'Zend/Pdf/Resource/Font/Extracted.php';
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/**
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* Abstract factory class which vends {@link Zend_Pdf_Resource_Font} objects.
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*
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* Font objects themselves are normally instantiated through the factory methods
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* {@link fontWithName()} or {@link fontWithPath()}.
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*
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* This class is also the home for font-related constants because the name of
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* the true base class ({@link Zend_Pdf_Resource_Font}) is not intuitive for the
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* end user.
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*
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* @package Zend_Pdf
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* @subpackage Fonts
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* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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*/
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abstract class Zend_Pdf_Font
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{
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/**** Class Constants ****/
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/* Font Types */
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/**
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* Unknown font type.
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*/
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const TYPE_UNKNOWN = 0;
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/**
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* One of the standard 14 PDF fonts.
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*/
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const TYPE_STANDARD = 1;
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/**
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* A PostScript Type 1 font.
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*/
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const TYPE_TYPE_1 = 2;
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/**
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* A TrueType font or an OpenType font containing TrueType outlines.
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*/
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const TYPE_TRUETYPE = 3;
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/**
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* Type 0 composite font.
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*/
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const TYPE_TYPE_0 = 4;
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/**
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* CID font containing a PostScript Type 1 font.
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* These fonts are used only to construct Type 0 composite fonts and can't be used directly
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*/
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const TYPE_CIDFONT_TYPE_0 = 5;
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/**
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* CID font containing a TrueType font or an OpenType font containing TrueType outlines.
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* These fonts are used only to construct Type 0 composite fonts and can't be used directly
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*/
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const TYPE_CIDFONT_TYPE_2 = 6;
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/* Names of the Standard 14 PDF Fonts */
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/**
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* Name of the standard PDF font Courier.
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*/
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const FONT_COURIER = 'Courier';
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/**
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* Name of the bold style of the standard PDF font Courier.
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*/
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const FONT_COURIER_BOLD = 'Courier-Bold';
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/**
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* Name of the italic style of the standard PDF font Courier.
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*/
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const FONT_COURIER_OBLIQUE = 'Courier-Oblique';
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/**
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* Convenience constant for a common misspelling of
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* {@link FONT_COURIER_OBLIQUE}.
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*/
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const FONT_COURIER_ITALIC = 'Courier-Oblique';
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/**
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* Name of the bold and italic style of the standard PDF font Courier.
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*/
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const FONT_COURIER_BOLD_OBLIQUE = 'Courier-BoldOblique';
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/**
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* Convenience constant for a common misspelling of
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* {@link FONT_COURIER_BOLD_OBLIQUE}.
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*/
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const FONT_COURIER_BOLD_ITALIC = 'Courier-BoldOblique';
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/**
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* Name of the standard PDF font Helvetica.
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*/
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const FONT_HELVETICA = 'Helvetica';
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/**
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* Name of the bold style of the standard PDF font Helvetica.
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*/
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const FONT_HELVETICA_BOLD = 'Helvetica-Bold';
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/**
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* Name of the italic style of the standard PDF font Helvetica.
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*/
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const FONT_HELVETICA_OBLIQUE = 'Helvetica-Oblique';
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/**
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* Convenience constant for a common misspelling of
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* {@link FONT_HELVETICA_OBLIQUE}.
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*/
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const FONT_HELVETICA_ITALIC = 'Helvetica-Oblique';
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/**
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* Name of the bold and italic style of the standard PDF font Helvetica.
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*/
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const FONT_HELVETICA_BOLD_OBLIQUE = 'Helvetica-BoldOblique';
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/**
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* Convenience constant for a common misspelling of
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* {@link FONT_HELVETICA_BOLD_OBLIQUE}.
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*/
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const FONT_HELVETICA_BOLD_ITALIC = 'Helvetica-BoldOblique';
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/**
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* Name of the standard PDF font Symbol.
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*/
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const FONT_SYMBOL = 'Symbol';
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/**
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* Name of the standard PDF font Times.
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*/
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const FONT_TIMES_ROMAN = 'Times-Roman';
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/**
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* Convenience constant for a common misspelling of
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* {@link FONT_TIMES_ROMAN}.
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*/
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const FONT_TIMES = 'Times-Roman';
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/**
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* Name of the bold style of the standard PDF font Times.
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*/
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const FONT_TIMES_BOLD = 'Times-Bold';
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/**
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* Name of the italic style of the standard PDF font Times.
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*/
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const FONT_TIMES_ITALIC = 'Times-Italic';
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/**
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* Name of the bold and italic style of the standard PDF font Times.
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*/
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const FONT_TIMES_BOLD_ITALIC = 'Times-BoldItalic';
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/**
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* Name of the standard PDF font Zapf Dingbats.
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*/
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const FONT_ZAPFDINGBATS = 'ZapfDingbats';
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/* Font Name String Types */
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/**
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* Full copyright notice for the font.
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*/
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const NAME_COPYRIGHT = 0;
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/**
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* Font family name. Used to group similar styles of fonts together.
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*/
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const NAME_FAMILY = 1;
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/**
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* Font style within the font family. Examples: Regular, Italic, Bold, etc.
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*/
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const NAME_STYLE = 2;
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/**
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* Unique font identifier.
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*/
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const NAME_ID = 3;
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/**
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* Full font name. Usually a combination of the {@link NAME_FAMILY} and
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* {@link NAME_STYLE} strings.
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*/
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const NAME_FULL = 4;
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/**
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* Version number of the font.
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*/
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const NAME_VERSION = 5;
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/**
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* PostScript name for the font. This is the name used to identify fonts
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* internally and within the PDF file.
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*/
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const NAME_POSTSCRIPT = 6;
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/**
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* Font trademark notice. This is distinct from the {@link NAME_COPYRIGHT}.
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*/
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const NAME_TRADEMARK = 7;
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/**
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* Name of the font manufacturer.
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*/
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const NAME_MANUFACTURER = 8;
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/**
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* Name of the designer of the font.
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*/
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const NAME_DESIGNER = 9;
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/**
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* Description of the font. May contain revision information, usage
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* recommendations, features, etc.
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*/
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const NAME_DESCRIPTION = 10;
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/**
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* URL of the font vendor. Some fonts may contain a unique serial number
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* embedded in this URL, which is used for licensing.
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*/
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const NAME_VENDOR_URL = 11;
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/**
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* URL of the font designer ({@link NAME_DESIGNER}).
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*/
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const NAME_DESIGNER_URL = 12;
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/**
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* Plain language licensing terms for the font.
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*/
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const NAME_LICENSE = 13;
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/**
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* URL of more detailed licensing information for the font.
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*/
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const NAME_LICENSE_URL = 14;
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/**
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* Preferred font family. Used by some fonts to work around a Microsoft
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* Windows limitation where only four fonts styles can share the same
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* {@link NAME_FAMILY} value.
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*/
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const NAME_PREFERRED_FAMILY = 16;
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/**
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* Preferred font style. A more descriptive string than {@link NAME_STYLE}.
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*/
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const NAME_PREFERRED_STYLE = 17;
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/**
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* Suggested text to use as a representative sample of the font.
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*/
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const NAME_SAMPLE_TEXT = 19;
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/**
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* PostScript CID findfont name.
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*/
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const NAME_CID_NAME = 20;
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/* Font Weights */
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/**
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* Thin font weight.
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*/
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const WEIGHT_THIN = 100;
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/**
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* Extra-light (Ultra-light) font weight.
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*/
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const WEIGHT_EXTRA_LIGHT = 200;
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/**
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* Light font weight.
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*/
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const WEIGHT_LIGHT = 300;
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/**
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* Normal (Regular) font weight.
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*/
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const WEIGHT_NORMAL = 400;
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/**
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* Medium font weight.
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*/
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const WEIGHT_MEDIUM = 500;
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/**
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* Semi-bold (Demi-bold) font weight.
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*/
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const WEIGHT_SEMI_BOLD = 600;
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/**
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* Bold font weight.
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*/
|
||
|
|
const WEIGHT_BOLD = 700;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Extra-bold (Ultra-bold) font weight.
|
||
|
|
*/
|
||
|
|
const WEIGHT_EXTRA_BOLD = 800;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Black (Heavy) font weight.
|
||
|
|
*/
|
||
|
|
const WEIGHT_BLACK = 900;
|
||
|
|
|
||
|
|
|
||
|
|
/* Font Widths */
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Ultra-condensed font width. Typically 50% of normal.
|
||
|
|
*/
|
||
|
|
const WIDTH_ULTRA_CONDENSED = 1;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Extra-condensed font width. Typically 62.5% of normal.
|
||
|
|
*/
|
||
|
|
const WIDTH_EXTRA_CONDENSED = 2;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Condensed font width. Typically 75% of normal.
|
||
|
|
*/
|
||
|
|
const WIDTH_CONDENSED = 3;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Semi-condensed font width. Typically 87.5% of normal.
|
||
|
|
*/
|
||
|
|
const WIDTH_SEMI_CONDENSED = 4;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Normal (Medium) font width.
|
||
|
|
*/
|
||
|
|
const WIDTH_NORMAL = 5;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Semi-expanded font width. Typically 112.5% of normal.
|
||
|
|
*/
|
||
|
|
const WIDTH_SEMI_EXPANDED = 6;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Expanded font width. Typically 125% of normal.
|
||
|
|
*/
|
||
|
|
const WIDTH_EXPANDED = 7;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Extra-expanded font width. Typically 150% of normal.
|
||
|
|
*/
|
||
|
|
const WIDTH_EXTRA_EXPANDED = 8;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Ultra-expanded font width. Typically 200% of normal.
|
||
|
|
*/
|
||
|
|
const WIDTH_ULTRA_EXPANDED = 9;
|
||
|
|
|
||
|
|
|
||
|
|
/* Font Embedding Options */
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Do not embed the font in the PDF document.
|
||
|
|
*/
|
||
|
|
const EMBED_DONT_EMBED = 0x01;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Embed, but do not subset the font in the PDF document.
|
||
|
|
*/
|
||
|
|
const EMBED_DONT_SUBSET = 0x02;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Embed, but do not compress the font in the PDF document.
|
||
|
|
*/
|
||
|
|
const EMBED_DONT_COMPRESS = 0x04;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Suppress the exception normally thrown if the font cannot be embedded
|
||
|
|
* due to its copyright bits being set.
|
||
|
|
*/
|
||
|
|
const EMBED_SUPPRESS_EMBED_EXCEPTION = 0x08;
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/**** Class Variables ****/
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Array whose keys are the unique PostScript names of instantiated fonts.
|
||
|
|
* The values are the font objects themselves.
|
||
|
|
* @var array
|
||
|
|
*/
|
||
|
|
private static $_fontNames = array();
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Array whose keys are the md5 hash of the full paths on disk for parsed
|
||
|
|
* fonts. The values are the font objects themselves.
|
||
|
|
* @var array
|
||
|
|
*/
|
||
|
|
private static $_fontFilePaths = array();
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/**** Public Interface ****/
|
||
|
|
|
||
|
|
|
||
|
|
/* Factory Methods */
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns a {@link Zend_Pdf_Resource_Font} object by full name.
|
||
|
|
*
|
||
|
|
* This is the preferred method to obtain one of the standard 14 PDF fonts.
|
||
|
|
*
|
||
|
|
* The result of this method is cached, preventing unnecessary duplication
|
||
|
|
* of font objects. Repetitive calls for a font with the same name will
|
||
|
|
* return the same object.
|
||
|
|
*
|
||
|
|
* The $embeddingOptions parameter allows you to set certain flags related
|
||
|
|
* to font embedding. You may combine options by OR-ing them together. See
|
||
|
|
* the EMBED_ constants defined in {@link Zend_Pdf_Font} for the list of
|
||
|
|
* available options and their descriptions. Note that this value is only
|
||
|
|
* used when creating a font for the first time. If a font with the same
|
||
|
|
* name already exists, you will get that object and the options you specify
|
||
|
|
* here will be ignored. This is because fonts are only embedded within the
|
||
|
|
* PDF file once.
|
||
|
|
*
|
||
|
|
* If the font name supplied does not match the name of a previously
|
||
|
|
* instantiated object and it is not one of the 14 standard PDF fonts, an
|
||
|
|
* exception will be thrown.
|
||
|
|
*
|
||
|
|
* @param string $name Full PostScript name of font.
|
||
|
|
* @param integer $embeddingOptions (optional) Options for font embedding.
|
||
|
|
* @return Zend_Pdf_Resource_Font
|
||
|
|
* @throws Zend_Pdf_Exception
|
||
|
|
*/
|
||
|
|
public static function fontWithName($name, $embeddingOptions = 0)
|
||
|
|
{
|
||
|
|
/* First check the cache. Don't duplicate font objects.
|
||
|
|
*/
|
||
|
|
if (isset(Zend_Pdf_Font::$_fontNames[$name])) {
|
||
|
|
return Zend_Pdf_Font::$_fontNames[$name];
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @todo It would be cool to be able to have a mapping of font names to
|
||
|
|
* file paths in a configuration file for frequently used custom
|
||
|
|
* fonts. This would allow a user to use custom fonts without having
|
||
|
|
* to hard-code file paths all over the place. Table this idea until
|
||
|
|
* {@link Zend_Config} is ready.
|
||
|
|
*/
|
||
|
|
|
||
|
|
/* Not an existing font and no mapping in the config file. Check to see
|
||
|
|
* if this is one of the standard 14 PDF fonts.
|
||
|
|
*/
|
||
|
|
switch ($name) {
|
||
|
|
case Zend_Pdf_Font::FONT_COURIER:
|
||
|
|
$font = new Zend_Pdf_Resource_Font_Simple_Standard_Courier();
|
||
|
|
break;
|
||
|
|
|
||
|
|
case Zend_Pdf_Font::FONT_COURIER_BOLD:
|
||
|
|
$font = new Zend_Pdf_Resource_Font_Simple_Standard_CourierBold();
|
||
|
|
break;
|
||
|
|
|
||
|
|
case Zend_Pdf_Font::FONT_COURIER_OBLIQUE:
|
||
|
|
$font = new Zend_Pdf_Resource_Font_Simple_Standard_CourierOblique();
|
||
|
|
break;
|
||
|
|
|
||
|
|
case Zend_Pdf_Font::FONT_COURIER_BOLD_OBLIQUE:
|
||
|
|
$font = new Zend_Pdf_Resource_Font_Simple_Standard_CourierBoldOblique();
|
||
|
|
break;
|
||
|
|
|
||
|
|
case Zend_Pdf_Font::FONT_HELVETICA:
|
||
|
|
$font = new Zend_Pdf_Resource_Font_Simple_Standard_Helvetica();
|
||
|
|
break;
|
||
|
|
|
||
|
|
case Zend_Pdf_Font::FONT_HELVETICA_BOLD:
|
||
|
|
$font = new Zend_Pdf_Resource_Font_Simple_Standard_HelveticaBold();
|
||
|
|
break;
|
||
|
|
|
||
|
|
case Zend_Pdf_Font::FONT_HELVETICA_OBLIQUE:
|
||
|
|
$font = new Zend_Pdf_Resource_Font_Simple_Standard_HelveticaOblique();
|
||
|
|
break;
|
||
|
|
|
||
|
|
case Zend_Pdf_Font::FONT_HELVETICA_BOLD_OBLIQUE:
|
||
|
|
$font = new Zend_Pdf_Resource_Font_Simple_Standard_HelveticaBoldOblique();
|
||
|
|
break;
|
||
|
|
|
||
|
|
case Zend_Pdf_Font::FONT_SYMBOL:
|
||
|
|
$font = new Zend_Pdf_Resource_Font_Simple_Standard_Symbol();
|
||
|
|
break;
|
||
|
|
|
||
|
|
case Zend_Pdf_Font::FONT_TIMES_ROMAN:
|
||
|
|
$font = new Zend_Pdf_Resource_Font_Simple_Standard_TimesRoman();
|
||
|
|
break;
|
||
|
|
|
||
|
|
case Zend_Pdf_Font::FONT_TIMES_BOLD:
|
||
|
|
$font = new Zend_Pdf_Resource_Font_Simple_Standard_TimesBold();
|
||
|
|
break;
|
||
|
|
|
||
|
|
case Zend_Pdf_Font::FONT_TIMES_ITALIC:
|
||
|
|
$font = new Zend_Pdf_Resource_Font_Simple_Standard_TimesItalic();
|
||
|
|
break;
|
||
|
|
|
||
|
|
case Zend_Pdf_Font::FONT_TIMES_BOLD_ITALIC:
|
||
|
|
$font = new Zend_Pdf_Resource_Font_Simple_Standard_TimesBoldItalic();
|
||
|
|
break;
|
||
|
|
|
||
|
|
case Zend_Pdf_Font::FONT_ZAPFDINGBATS:
|
||
|
|
$font = new Zend_Pdf_Resource_Font_Simple_Standard_ZapfDingbats();
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
throw new Zend_Pdf_Exception("Unknown font name: $name",
|
||
|
|
Zend_Pdf_Exception::BAD_FONT_NAME);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Add this new font to the cache array and return it for use.
|
||
|
|
*/
|
||
|
|
Zend_Pdf_Font::$_fontNames[$name] = $font;
|
||
|
|
return $font;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns a {@link Zend_Pdf_Resource_Font} object by file path.
|
||
|
|
*
|
||
|
|
* The result of this method is cached, preventing unnecessary duplication
|
||
|
|
* of font objects. Repetitive calls for the font with the same path will
|
||
|
|
* return the same object.
|
||
|
|
*
|
||
|
|
* The $embeddingOptions parameter allows you to set certain flags related
|
||
|
|
* to font embedding. You may combine options by OR-ing them together. See
|
||
|
|
* the EMBED_ constants defined in {@link Zend_Pdf_Font} for the list of
|
||
|
|
* available options and their descriptions. Note that this value is only
|
||
|
|
* used when creating a font for the first time. If a font with the same
|
||
|
|
* name already exists, you will get that object and the options you specify
|
||
|
|
* here will be ignored. This is because fonts are only embedded within the
|
||
|
|
* PDF file once.
|
||
|
|
*
|
||
|
|
* If the file path supplied does not match the path of a previously
|
||
|
|
* instantiated object or the font type cannot be determined, an exception
|
||
|
|
* will be thrown.
|
||
|
|
*
|
||
|
|
* @param string $filePath Full path to the font file.
|
||
|
|
* @param integer $embeddingOptions (optional) Options for font embedding.
|
||
|
|
* @return Zend_Pdf_Resource_Font
|
||
|
|
* @throws Zend_Pdf_Exception
|
||
|
|
*/
|
||
|
|
public static function fontWithPath($filePath, $embeddingOptions = 0)
|
||
|
|
{
|
||
|
|
/* First check the cache. Don't duplicate font objects.
|
||
|
|
*/
|
||
|
|
$filePathKey = md5($filePath);
|
||
|
|
if (isset(Zend_Pdf_Font::$_fontFilePaths[$filePathKey])) {
|
||
|
|
return Zend_Pdf_Font::$_fontFilePaths[$filePathKey];
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Create a file parser data source object for this file. File path and
|
||
|
|
* access permission checks are handled here.
|
||
|
|
*/
|
||
|
|
$dataSource = new Zend_Pdf_FileParserDataSource_File($filePath);
|
||
|
|
|
||
|
|
/* Attempt to determine the type of font. We can't always trust file
|
||
|
|
* extensions, but try that first since it's fastest.
|
||
|
|
*/
|
||
|
|
$fileExtension = strtolower(pathinfo($filePath, PATHINFO_EXTENSION));
|
||
|
|
|
||
|
|
/* If it turns out that the file is named improperly and we guess the
|
||
|
|
* wrong type, we'll get null instead of a font object.
|
||
|
|
*/
|
||
|
|
switch ($fileExtension) {
|
||
|
|
case 'ttf':
|
||
|
|
$font = Zend_Pdf_Font::_extractTrueTypeFont($dataSource, $embeddingOptions);
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
/* Unrecognized extension. Try to determine the type by actually
|
||
|
|
* parsing it below.
|
||
|
|
*/
|
||
|
|
$font = null;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
if ($font === null) {
|
||
|
|
/* There was no match for the file extension or the extension was
|
||
|
|
* wrong. Attempt to detect the type of font by actually parsing it.
|
||
|
|
* We'll do the checks in order of most likely format to try to
|
||
|
|
* reduce the detection time.
|
||
|
|
*/
|
||
|
|
|
||
|
|
// OpenType
|
||
|
|
|
||
|
|
// TrueType
|
||
|
|
if (($font === null) && ($fileExtension != 'ttf')) {
|
||
|
|
$font = Zend_Pdf_Font::_extractTrueTypeFont($dataSource, $embeddingOptions);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Type 1 PostScript
|
||
|
|
|
||
|
|
// Mac OS X dfont
|
||
|
|
|
||
|
|
// others?
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/* Done with the data source object.
|
||
|
|
*/
|
||
|
|
$dataSource = null;
|
||
|
|
|
||
|
|
if ($font !== null) {
|
||
|
|
/* Parsing was successful. Add this font instance to the cache arrays
|
||
|
|
* and return it for use.
|
||
|
|
*/
|
||
|
|
$fontName = $font->getFontName(Zend_Pdf_Font::NAME_POSTSCRIPT, '', '');
|
||
|
|
Zend_Pdf_Font::$_fontNames[$fontName] = $font;
|
||
|
|
$filePathKey = md5($filePath);
|
||
|
|
Zend_Pdf_Font::$_fontFilePaths[$filePathKey] = $font;
|
||
|
|
return $font;
|
||
|
|
|
||
|
|
} else {
|
||
|
|
/* The type of font could not be determined. Give up.
|
||
|
|
*/
|
||
|
|
throw new Zend_Pdf_Exception("Cannot determine font type: $filePath",
|
||
|
|
Zend_Pdf_Exception::CANT_DETERMINE_FONT_TYPE);
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/**** Internal Methods ****/
|
||
|
|
|
||
|
|
|
||
|
|
/* Font Extraction Methods */
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Attempts to extract a TrueType font from the data source.
|
||
|
|
*
|
||
|
|
* If the font parser throws an exception that suggests the data source
|
||
|
|
* simply doesn't contain a TrueType font, catches it and returns null. If
|
||
|
|
* an exception is thrown that suggests the TrueType font is corrupt or
|
||
|
|
* otherwise unusable, throws that exception. If successful, returns the
|
||
|
|
* font object.
|
||
|
|
*
|
||
|
|
* @param Zend_Pdf_FileParserDataSource $dataSource
|
||
|
|
* @param integer $embeddingOptions Options for font embedding.
|
||
|
|
* @return Zend_Pdf_Resource_Font_OpenType_TrueType May also return null if
|
||
|
|
* the data source does not appear to contain a TrueType font.
|
||
|
|
* @throws Zend_Pdf_Exception
|
||
|
|
*/
|
||
|
|
protected static function _extractTrueTypeFont($dataSource, $embeddingOptions)
|
||
|
|
{
|
||
|
|
try {
|
||
|
|
$fontParser = new Zend_Pdf_FileParser_Font_OpenType_TrueType($dataSource);
|
||
|
|
|
||
|
|
$fontParser->parse();
|
||
|
|
if ($fontParser->isAdobeLatinSubset) {
|
||
|
|
$font = new Zend_Pdf_Resource_Font_Simple_Parsed_TrueType($fontParser, $embeddingOptions);
|
||
|
|
} else {
|
||
|
|
/* Use Composite Type 0 font which supports Unicode character mapping */
|
||
|
|
$cidFont = new Zend_Pdf_Resource_Font_CidFont_TrueType($fontParser, $embeddingOptions);
|
||
|
|
$font = new Zend_Pdf_Resource_Font_Type0($cidFont);
|
||
|
|
}
|
||
|
|
} catch (Zend_Pdf_Exception $exception) {
|
||
|
|
/* The following exception codes suggest that this isn't really a
|
||
|
|
* TrueType font. If we caught such an exception, simply return
|
||
|
|
* null. For all other cases, it probably is a TrueType font but has
|
||
|
|
* a problem; throw the exception again.
|
||
|
|
*/
|
||
|
|
$fontParser = null;
|
||
|
|
switch ($exception->getCode()) {
|
||
|
|
case Zend_Pdf_Exception::WRONG_FONT_TYPE: // break intentionally omitted
|
||
|
|
case Zend_Pdf_Exception::BAD_TABLE_COUNT: // break intentionally omitted
|
||
|
|
case Zend_Pdf_Exception::BAD_MAGIC_NUMBER:
|
||
|
|
return null;
|
||
|
|
|
||
|
|
default:
|
||
|
|
throw $exception;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return $font;
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|