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88 lines
3.4 KiB
88 lines
3.4 KiB
<?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) 2005-2015 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 $Id$
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*/
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/** Internally used classes */
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// require_once 'Zend/Pdf/Element/Name.php';
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/** Zend_Pdf_Resource_Font_FontDescriptor */
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// require_once 'Zend/Pdf/Resource/Font/FontDescriptor.php';
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/** Zend_Pdf_Resource_Font_CidFont */
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// require_once 'Zend/Pdf/Resource/Font/CidFont.php';
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/**
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* Type 2 CIDFonts implementation
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*
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* For Type 2, the CIDFont program is actually a TrueType font program, which has
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* no native notion of CIDs. In a TrueType font program, glyph descriptions are
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* identified by glyph index values. Glyph indices are internal to the font and are not
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* defined consistently from one font to another. Instead, a TrueType font program
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* contains a 'cmap' table that provides mappings directly from character codes to
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* glyph indices for one or more predefined encodings.
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*
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* @package Zend_Pdf
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* @subpackage Fonts
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* @copyright Copyright (c) 2005-2015 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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class Zend_Pdf_Resource_Font_CidFont_TrueType extends Zend_Pdf_Resource_Font_CidFont
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{
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/**
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* Object constructor
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*
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* @todo Joing this class with Zend_Pdf_Resource_Font_Simple_Parsed_TrueType
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*
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* @param Zend_Pdf_FileParser_Font_OpenType_TrueType $fontParser Font parser
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* object containing parsed TrueType file.
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* @param integer $embeddingOptions Options for font embedding.
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* @throws Zend_Pdf_Exception
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*/
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public function __construct(Zend_Pdf_FileParser_Font_OpenType_TrueType $fontParser, $embeddingOptions)
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{
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parent::__construct($fontParser, $embeddingOptions);
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$this->_fontType = Zend_Pdf_Font::TYPE_CIDFONT_TYPE_2;
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$this->_resource->Subtype = new Zend_Pdf_Element_Name('CIDFontType2');
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$fontDescriptor = Zend_Pdf_Resource_Font_FontDescriptor::factory($this, $fontParser, $embeddingOptions);
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$this->_resource->FontDescriptor = $this->_objectFactory->newObject($fontDescriptor);
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/* Prepare CIDToGIDMap */
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// Initialize 128K string of null characters (65536 2 byte integers)
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$cidToGidMapData = str_repeat("\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 8192);
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// Fill the index
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$charGlyphs = $this->_cmap->getCoveredCharactersGlyphs();
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foreach ($charGlyphs as $charCode => $glyph) {
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$cidToGidMapData[$charCode*2 ] = chr($glyph >> 8);
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$cidToGidMapData[$charCode*2 + 1] = chr($glyph & 0xFF);
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}
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// Store CIDToGIDMap within compressed stream object
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$cidToGidMap = $this->_objectFactory->newStreamObject($cidToGidMapData);
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$cidToGidMap->dictionary->Filter = new Zend_Pdf_Element_Name('FlateDecode');
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$this->_resource->CIDToGIDMap = $cidToGidMap;
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}
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}
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