<?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) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

 * @license    http://framework.zend.com/license/new-bsd     New BSD License

 * @version    $Id: ByteEncoding.php 20096 2010-01-06 02:05:09Z bkarwin $

 */

/** Zend_Pdf_Cmap */

require_once 'Zend/Pdf/Cmap.php';

/**

 * Implements the "byte encoding" character map (type 0).

 *

 * This is the (legacy) Apple standard encoding mechanism and provides coverage

 * for characters in the Mac Roman character set only. Consequently, this cmap

 * type should be used only as a last resort.

 *

 * The mapping from Mac Roman to Unicode can be found at

 * {@link http://www.unicode.org/Public/MAPPINGS/VENDORS/APPLE/ROMAN.TXT}.

 *

 * @package    Zend_Pdf

 * @subpackage Fonts

 * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

 * @license    http://framework.zend.com/license/new-bsd     New BSD License

 */

class Zend_Pdf_Cmap_ByteEncoding extends Zend_Pdf_Cmap

{

  /**** Instance Variables ****/

    /**

     * Glyph index array. Stores the actual glyph numbers. The array keys are

     * the translated Unicode code points.

     * @var array

     */

    protected $_glyphIndexArray = array();

  /**** Public Interface ****/

  /* Concrete Class Implementation */

    /**

     * 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)

    {

        $glyphNumbers = array();

        foreach ($characterCodes as $key => $characterCode) {

           if (! isset($this->_glyphIndexArray[$characterCode])) {

                $glyphNumbers[$key] = Zend_Pdf_Cmap::MISSING_CHARACTER_GLYPH;

                continue;

            }

            $glyphNumbers[$key] = $this->_glyphIndexArray[$characterCode];

        }

        return $glyphNumbers;

    }

    /**

     * 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)

    {

        if (! isset($this->_glyphIndexArray[$characterCode])) {

            return Zend_Pdf_Cmap::MISSING_CHARACTER_GLYPH;

        }

        return $this->_glyphIndexArray[$characterCode];

    }

    /**

     * Returns an array containing the Unicode characters that have entries in

     * this character map.

     *

     * @return array Unicode character codes.

     */

    public function getCoveredCharacters()

    {

        return array_keys($this->_glyphIndexArray);

    }

    /**

     * Returns an array containing the glyphs numbers that have entries in this character map.

     * Keys are Unicode character codes (integers)

     *

     * This functionality is partially covered by glyphNumbersForCharacters(getCoveredCharacters())

     * call, but this method do it in more effective way (prepare complete list instead of searching

     * glyph for each character code).

     *

     * @internal

     * @return array Array representing <Unicode character code> => <glyph number> pairs.

     */

    public function getCoveredCharactersGlyphs()

    {

        return $this->_glyphIndexArray;

    }

  /* Object Lifecycle */

    /**

     * Object constructor

     *

     * Parses the raw binary table data. Throws an exception if the table is

     * malformed.

     *

     * @param string $cmapData Raw binary cmap table data.

     * @throws Zend_Pdf_Exception

     */

    public function __construct($cmapData)

    {

        /* Sanity check: This table must be exactly 262 bytes long.

         */

        $actualLength = strlen($cmapData);

        if ($actualLength != 262) {

            require_once 'Zend/Pdf/Exception.php';

            throw new Zend_Pdf_Exception('Insufficient table data',

                                         Zend_Pdf_Exception::CMAP_TABLE_DATA_TOO_SMALL);

        }

        /* Sanity check: Make sure this is right data for this table type.

         */

        $type = $this->_extractUInt2($cmapData, 0);

        if ($type != Zend_Pdf_Cmap::TYPE_BYTE_ENCODING) {

            require_once 'Zend/Pdf/Exception.php';

            throw new Zend_Pdf_Exception('Wrong cmap table type',

                                         Zend_Pdf_Exception::CMAP_WRONG_TABLE_TYPE);

        }

        $length = $this->_extractUInt2($cmapData, 2);

        if ($length != $actualLength) {

            require_once 'Zend/Pdf/Exception.php';

            throw new Zend_Pdf_Exception("Table length ($length) does not match actual length ($actualLength)",

                                         Zend_Pdf_Exception::CMAP_WRONG_TABLE_LENGTH);

        }

        /* Mapping tables should be language-independent. The font may not work

         * as expected if they are not. Unfortunately, many font files in the

         * wild incorrectly record a language ID in this field, so we can't

         * call this a failure.

         */

        $language = $this->_extractUInt2($cmapData, 4);

        if ($language != 0) {

            // Record a warning here somehow?

        }

        /* The mapping between the Mac Roman and Unicode characters is static.

         * For simplicity, just put all 256 glyph indices into one array keyed

         * off the corresponding Unicode character.

         */

        $i = 6;

        $this->_glyphIndexArray[0x00]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x01]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x02]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x03]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x04]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x05]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x06]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x07]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x08]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x09]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x0a]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x0b]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x0c]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x0d]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x0e]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x0f]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x10]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x11]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x12]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x13]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x14]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x15]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x16]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x17]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x18]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x19]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x1a]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x1b]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x1c]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x1d]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x1e]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x1f]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x20]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x21]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x22]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x23]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x24]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x25]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x26]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x27]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x28]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x29]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x2a]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x2b]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x2c]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x2d]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x2e]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x2f]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x30]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x31]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x32]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x33]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x34]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x35]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x36]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x37]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x38]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x39]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x3a]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x3b]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x3c]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x3d]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x3e]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x3f]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x40]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x41]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x42]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x43]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x44]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x45]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x46]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x47]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x48]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x49]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x4a]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x4b]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x4c]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x4d]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x4e]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x4f]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x50]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x51]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x52]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x53]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x54]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x55]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x56]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x57]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x58]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x59]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x5a]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x5b]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x5c]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x5d]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x5e]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x5f]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x60]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x61]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x62]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x63]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x64]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x65]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x66]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x67]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x68]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x69]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x6a]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x6b]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x6c]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x6d]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x6e]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x6f]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x70]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x71]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x72]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x73]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x74]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x75]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x76]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x77]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x78]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x79]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x7a]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x7b]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x7c]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x7d]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x7e]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x7f]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0xc4]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0xc5]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0xc7]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0xc9]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0xd1]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0xd6]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0xdc]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0xe1]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0xe0]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0xe2]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0xe4]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0xe3]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0xe5]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0xe7]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0xe9]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0xe8]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0xea]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0xeb]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0xed]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0xec]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0xee]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0xef]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0xf1]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0xf3]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0xf2]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0xf4]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0xf6]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0xf5]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0xfa]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0xf9]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0xfb]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0xfc]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0x2020] = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0xb0]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0xa2]   = ord($cmapData[$i++]);

        $this->_glyphIndexArray[0xa3]   = ord($cmapData[$i++]);