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    $Id$
  */
 
 
 /** @see Zend_Pdf_Resource_Font */
 // require_once 'Zend/Pdf/Resource/Font.php';
 
 /**
  * Extracted fonts implementation
  *
  * Thes class allows to extract fonts already mentioned within PDF document and use them
  * for text drawing.
  *
  * @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_Extracted extends Zend_Pdf_Resource_Font
 {
     /**
      * Messages
      */
     const TYPE_NOT_SUPPORTED = 'Unsupported font type.';
     const ENCODING_NOT_SUPPORTED  = 'Font encoding is not supported';
     const OPERATION_NOT_SUPPORTED = 'Operation is not supported for extracted fonts';
 
     /**
      * Extracted font encoding
      *
      * Only 'Identity-H' and 'WinAnsiEncoding' encodings are supported now
      *
      * @var string
      */
     protected $_encoding = null;
 
     /**
      * Object constructor
      *
      * $fontDictionary is a Zend_Pdf_Element_Reference or Zend_Pdf_Element_Object object
      *
      * @param mixed $fontDictionary
      * @throws Zend_Pdf_Exception
      */
     public function __construct($fontDictionary)
     {
         // Extract object factory and resource object from font dirctionary object
         $this->_objectFactory = $fontDictionary->getFactory();
         $this->_resource      = $fontDictionary;
 
         if ($fontDictionary->Encoding !== null) {
             $this->_encoding = $fontDictionary->Encoding->value;
         }
 
         switch ($fontDictionary->Subtype->value) {
             case 'Type0':
                 // Composite type 0 font
                 if (count($fontDictionary->DescendantFonts->items) != 1) {
                     // Multiple descendant fonts are not supported
                     // require_once 'Zend/Pdf/Exception.php';
                     throw new Zend_Pdf_Exception(self::TYPE_NOT_SUPPORTED);
                 }
 
                 $fontDictionaryIterator = $fontDictionary->DescendantFonts->items->getIterator();
                 $fontDictionaryIterator->rewind();
                 $descendantFont = $fontDictionaryIterator->current();
                 $fontDescriptor = $descendantFont->FontDescriptor;
                 break;
 
             case 'Type1':
                 if ($fontDictionary->FontDescriptor === null) {
                     // That's one of the standard fonts
                     $standardFont = Zend_Pdf_Font::fontWithName($fontDictionary->BaseFont->value);
 
                     $this->_fontNames          = $standardFont->getFontNames();
                     $this->_isBold             = $standardFont->isBold();
                     $this->_isItalic           = $standardFont->isItalic();
                     $this->_isMonospace        = $standardFont->isMonospace();
                     $this->_underlinePosition  = $standardFont->getUnderlinePosition();
                     $this->_underlineThickness = $standardFont->getUnderlineThickness();
                     $this->_strikePosition     = $standardFont->getStrikePosition();
                     $this->_strikeThickness    = $standardFont->getStrikeThickness();
                     $this->_unitsPerEm         = $standardFont->getUnitsPerEm();
                     $this->_ascent             = $standardFont->getAscent();
                     $this->_descent            = $standardFont->getDescent();
                     $this->_lineGap            = $standardFont->getLineGap();
 
                     return;
                 }
 
                 $fontDescriptor = $fontDictionary->FontDescriptor;
                 break;
 
             case 'TrueType':
                 $fontDescriptor = $fontDictionary->FontDescriptor;
                 break;
 
             default:
                 // require_once 'Zend/Pdf/Exception.php';
                 throw new Zend_Pdf_Exception(self::TYPE_NOT_SUPPORTED);
         }
 
         $this->_fontNames[Zend_Pdf_Font::NAME_POSTSCRIPT]['en'] = iconv('UTF-8', 'UTF-16BE', $fontDictionary->BaseFont->value);
 
         $this->_isBold             = false; // this property is actually not used anywhere
         $this->_isItalic           = ( ($fontDescriptor->Flags->value & (1 << 6)) != 0 ); // Bit-7 is set
         $this->_isMonospace        = ( ($fontDescriptor->Flags->value & (1 << 0)) != 0 ); // Bit-1 is set
         $this->_underlinePosition  = null; // Can't be extracted
         $this->_underlineThickness = null; // Can't be extracted
         $this->_strikePosition     = null; // Can't be extracted
         $this->_strikeThickness    = null; // Can't be extracted
         $this->_unitsPerEm         = null; // Can't be extracted
         $this->_ascent             = $fontDescriptor->Ascent->value;
         $this->_descent            = $fontDescriptor->Descent->value;
         $this->_lineGap            = null; // Can't be extracted
     }
 
     /**
      * Returns an array of glyph numbers corresponding to the Unicode characters.
      *
      * If a particular character doesn't exist in this font, the special 'missing
      * character glyph' will be substituted.
      *
      * See also {@link glyphNumberForCharacter()}.
      *
      * @param array $characterCodes Array of Unicode character codes (code points).
      * @return array Array of glyph numbers.
      */
     public function glyphNumbersForCharacters($characterCodes)
     {
         // require_once 'Zend/Pdf/Exception.php';
         throw new Zend_Pdf_Exception(self::OPERATION_NOT_SUPPORTED);
     }
 
     /**
      * Returns the glyph number corresponding to the Unicode character.
      *
      * If a particular character doesn't exist in this font, the special 'missing
      * character glyph' will be substituted.
      *
      * See also {@link glyphNumbersForCharacters()} which is optimized for bulk
      * operations.
      *
      * @param integer $characterCode Unicode character code (code point).
      * @return integer Glyph number.
      */
     public function glyphNumberForCharacter($characterCode)
     {
         // require_once 'Zend/Pdf/Exception.php';
         throw new Zend_Pdf_Exception(self::OPERATION_NOT_SUPPORTED);
     }
 
     /**
      * 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 = '')
     {
         // require_once 'Zend/Pdf/Exception.php';
         throw new Zend_Pdf_Exception(self::OPERATION_NOT_SUPPORTED);
     }
 
     /**
      * 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()}.
      *
      * 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)
     {
         // require_once 'Zend/Pdf/Exception.php';
         throw new Zend_Pdf_Exception(self::OPERATION_NOT_SUPPORTED);
     }
 
     /**
      * 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)
     {
         // require_once 'Zend/Pdf/Exception.php';
         throw new Zend_Pdf_Exception(self::OPERATION_NOT_SUPPORTED);
     }
 
     /**
      * 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, $charEncoding)
     {
         if ($this->_encoding == 'Identity-H') {
             return iconv($charEncoding, 'UTF-16BE', $string);
         }
 
         if ($this->_encoding == 'WinAnsiEncoding') {
             return iconv($charEncoding, 'CP1252//IGNORE', $string);
         }
 
         // require_once 'Zend/Pdf/Exception.php';
         throw new Zend_Pdf_Exception(self::ENCODING_NOT_SUPPORTED);
     }
 
     /**
      * 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, $charEncoding)
     {
         if ($this->_encoding == 'Identity-H') {
             return iconv('UTF-16BE', $charEncoding, $string);
         }
 
         if ($this->_encoding == 'WinAnsiEncoding') {
             return iconv('CP1252', $charEncoding, $string);
         }
 
         // require_once 'Zend/Pdf/Exception.php';
         throw new Zend_Pdf_Exception(self::ENCODING_NOT_SUPPORTED);
     }
 }