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<?php
/**
* Zend Framework
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://framework.zend.com/license/new-bsd
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@zend.com so we can send you a copy immediately.
*
* @category Zend
* @package Zend_Pdf
* @subpackage Fonts
* @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id$
*/
/** Internally used classes */
// require_once 'Zend/Pdf/Element/Name.php';
/** Zend_Pdf_Resource_Font_FontDescriptor */
// require_once 'Zend/Pdf/Resource/Font/FontDescriptor.php';
/** Zend_Pdf_Resource_Font_CidFont */
// require_once 'Zend/Pdf/Resource/Font/CidFont.php';
/**
* Type 2 CIDFonts implementation
*
* For Type 2, the CIDFont program is actually a TrueType font program, which has
* no native notion of CIDs. In a TrueType font program, glyph descriptions are
* identified by glyph index values. Glyph indices are internal to the font and are not
* defined consistently from one font to another. Instead, a TrueType font program
* contains a 'cmap' table that provides mappings directly from character codes to
* glyph indices for one or more predefined encodings.
*
* @package Zend_Pdf
* @subpackage Fonts
* @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_Pdf_Resource_Font_CidFont_TrueType extends Zend_Pdf_Resource_Font_CidFont
{
/**
* Object constructor
*
* @todo Joing this class with Zend_Pdf_Resource_Font_Simple_Parsed_TrueType
*
* @param Zend_Pdf_FileParser_Font_OpenType_TrueType $fontParser Font parser
* object containing parsed TrueType file.
* @param integer $embeddingOptions Options for font embedding.
* @throws Zend_Pdf_Exception
*/
public function __construct(Zend_Pdf_FileParser_Font_OpenType_TrueType $fontParser, $embeddingOptions)
{
parent::__construct($fontParser, $embeddingOptions);
$this->_fontType = Zend_Pdf_Font::TYPE_CIDFONT_TYPE_2;
$this->_resource->Subtype = new Zend_Pdf_Element_Name('CIDFontType2');
$fontDescriptor = Zend_Pdf_Resource_Font_FontDescriptor::factory($this, $fontParser, $embeddingOptions);
$this->_resource->FontDescriptor = $this->_objectFactory->newObject($fontDescriptor);
/* Prepare CIDToGIDMap */
// Initialize 128K string of null characters (65536 2 byte integers)
$cidToGidMapData = str_repeat("\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 8192);
// Fill the index
$charGlyphs = $this->_cmap->getCoveredCharactersGlyphs();
foreach ($charGlyphs as $charCode => $glyph) {
$cidToGidMapData[$charCode*2 ] = chr($glyph >> 8);
$cidToGidMapData[$charCode*2 + 1] = chr($glyph & 0xFF);
}
// Store CIDToGIDMap within compressed stream object
$cidToGidMap = $this->_objectFactory->newStreamObject($cidToGidMapData);
$cidToGidMap->dictionary->Filter = new Zend_Pdf_Element_Name('FlateDecode');
$this->_resource->CIDToGIDMap = $cidToGidMap;
}
}