File indexing completed on 2024-06-23 05:55:35

 <?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/Array.php';
 // require_once 'Zend/Pdf/Element/Name.php';
 
 
 /** Zend_Pdf_Resource_Font */
 // require_once 'Zend/Pdf/Resource/Font.php';
 
 /**
  * Adobe PDF composite fonts implementation
  *
  * A composite font is one whose glyphs are obtained from other fonts or from fontlike
  * objects called CIDFonts ({@link Zend_Pdf_Resource_Font_CidFont}), organized hierarchically.
  * In PDF, a composite font is represented by a font dictionary whose Subtype value is Type0;
  * this is also called a Type 0 font (the Type 0 font at the top level of the hierarchy is the
  * root font).
  *
  * In PDF, a Type 0 font is a CID-keyed font.
  *
  * CID-keyed fonts provide effective method to operate with multi-byte character encodings.
  *
  * The CID-keyed font architecture specifies the external representation of certain font programs,
  * called CMap and CIDFont files, along with some conventions for combining and using those files.
  *
  * A CID-keyed font is the combination of a CMap with one or more CIDFonts, simple fonts,
  * or composite fonts containing glyph descriptions.
  *
  * The term 'CID-keyed font' reflects the fact that CID (character identifier) numbers
  * are used to index and access the glyph descriptions in the font.
  *
  *
  * Font objects should be normally be obtained from the factory methods
  * {@link Zend_Pdf_Font::fontWithName} and {@link Zend_Pdf_Font::fontWithPath}.
  *
  * @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_Type0 extends Zend_Pdf_Resource_Font
 {
     /**
      * Descendant CIDFont
      *
      * @var Zend_Pdf_Resource_Font_CidFont
      */
     private $_descendantFont;
 
 
     /**
      * Generate ToUnicode character map data
      *
      * @return string
      */
     static private function getToUnicodeCMapData()
     {
         return '/CIDInit /ProcSet findresource begin '              . "\n"
              . '12 dict begin '                                     . "\n"
              . 'begincmap '                                         . "\n"
              . '/CIDSystemInfo '                                    . "\n"
              . '<</Registry (Adobe) '                               . "\n"
              . '/Ordering (UCS) '                                   . "\n"
              . '/Supplement 0'                                      . "\n"
              . '>> def'                                             . "\n"
              . '/CMapName /Adobe-Identity-UCS def '                 . "\n"
              . '/CMapType 2 def '                                   . "\n"
              . '1 begincodespacerange'                              . "\n"
              . '<0000> <FFFF> '                                     . "\n"
              . 'endcodespacerange '                                 . "\n"
              . '1 beginbfrange '                                    . "\n"
              . '<0000> <FFFF> <0000> '                              . "\n"
              . 'endbfrange '                                        . "\n"
              . 'endcmap '                                           . "\n"
              . 'CMapName currentdict /CMap defineresource pop '     . "\n"
              . 'end '
              . 'end ';
             }
 
     /**
      * Object constructor
      *
      */
     public function __construct(Zend_Pdf_Resource_Font_CidFont $descendantFont)
     {
         parent::__construct();
 
         $this->_objectFactory->attach($descendantFont->getFactory());
 
         $this->_fontType       = Zend_Pdf_Font::TYPE_TYPE_0;
         $this->_descendantFont = $descendantFont;
 
 
         $this->_fontNames    = $descendantFont->getFontNames();
 
         $this->_isBold       = $descendantFont->isBold();
         $this->_isItalic     = $descendantFont->isItalic();
         $this->_isMonospaced = $descendantFont->isMonospace();
 
         $this->_underlinePosition  = $descendantFont->getUnderlinePosition();
         $this->_underlineThickness = $descendantFont->getUnderlineThickness();
         $this->_strikePosition     = $descendantFont->getStrikePosition();
         $this->_strikeThickness    = $descendantFont->getStrikeThickness();
 
         $this->_unitsPerEm = $descendantFont->getUnitsPerEm();
 
         $this->_ascent  = $descendantFont->getAscent();
         $this->_descent = $descendantFont->getDescent();
         $this->_lineGap = $descendantFont->getLineGap();
 
 
         $this->_resource->Subtype         = new Zend_Pdf_Element_Name('Type0');
         $this->_resource->BaseFont        = new Zend_Pdf_Element_Name($descendantFont->getResource()->BaseFont->value);
         $this->_resource->DescendantFonts = new Zend_Pdf_Element_Array(array( $descendantFont->getResource() ));
         $this->_resource->Encoding        = new Zend_Pdf_Element_Name('Identity-H');
 
         $toUnicode = $this->_objectFactory->newStreamObject(self::getToUnicodeCMapData());
         $this->_resource->ToUnicode = $toUnicode;
 
     }
 
     /**
      * Returns an array of glyph numbers corresponding to the Unicode characters.
      *
      * Zend_Pdf uses 'Identity-H' encoding for Type 0 fonts.
      * So we don't need to perform any conversion
      *
      * See also {@link glyphNumberForCharacter()}.
      *
      * @param array $characterCodes Array of Unicode character codes (code points).
      * @return array Array of glyph numbers.
      */
     public function glyphNumbersForCharacters($characterCodes)
     {
         return $characterCodes;
     }
 
     /**
      * Returns the glyph number corresponding to the Unicode character.
      *
      * Zend_Pdf uses 'Identity-H' encoding for Type 0 fonts.
      * So we don't need to perform any conversion
      *
      * @param integer $characterCode Unicode character code (code point).
      * @return integer Glyph number.
      */
     public function glyphNumberForCharacter($characterCode)
     {
         return $characterCode;
     }
 
     /**
      * Returns a number between 0 and 1 inclusive that indicates the percentage
      * of characters in the string which are covered by glyphs in this font.
      *
      * Since no one font will contain glyphs for the entire Unicode character
      * range, this method can be used to help locate a suitable font when the
      * actual contents of the string are not known.
      *
      * Note that some fonts lie about the characters they support. Additionally,
      * fonts don't usually contain glyphs for control characters such as tabs
      * and line breaks, so it is rare that you will get back a full 1.0 score.
      * The resulting value should be considered informational only.
      *
      * @param string $string
      * @param string $charEncoding (optional) Character encoding of source text.
      *   If omitted, uses 'current locale'.
      * @return float
      */
     public function getCoveredPercentage($string, $charEncoding = '')
     {
         return $this->_descendantFont->getCoveredPercentage($string, $charEncoding);
     }
 
     /**
      * Returns the widths of the glyphs.
      *
      * The widths are expressed in the font's glyph space. You are responsible
      * for converting to user space as necessary. See {@link unitsPerEm()}.
      *
      * Throws an exception if the glyph number is out of range.
      *
      * See also {@link widthForGlyph()}.
      *
      * @param array &$glyphNumbers Array of glyph numbers.
      * @return array Array of glyph widths (integers).
      * @throws Zend_Pdf_Exception
      */
     public function widthsForGlyphs($glyphNumbers)
     {
         return $this->_descendantFont->widthsForChars($glyphNumbers);
     }
 
     /**
      * Returns the width of the glyph.
      *
      * Like {@link widthsForGlyphs()} but used for one glyph at a time.
      *
      * @param integer $glyphNumber
      * @return integer
      * @throws Zend_Pdf_Exception
      */
     public function widthForGlyph($glyphNumber)
     {
         return $this->_descendantFont->widthForChar($glyphNumber);
     }
 
     /**
      * Convert string to the font encoding.
      *
      * The method is used to prepare string for text drawing operators
      *
      * @param string $string
      * @param string $charEncoding Character encoding of source text.
      * @return string
      */
     public function encodeString($string, $charEncoding)
     {
         return iconv($charEncoding, 'UTF-16BE', $string);
     }
 
     /**
      * Convert string from the font encoding.
      *
      * The method is used to convert strings retrieved from existing content streams
      *
      * @param string $string
      * @param string $charEncoding Character encoding of resulting text.
      * @return string
      */
         public function decodeString($string, $charEncoding)
     {
         return iconv('UTF-16BE', $charEncoding, $string);
     }
 }