--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/web/Zend/Pdf/Cmap/TrimmedTable.php Mon Dec 13 18:29:26 2010 +0100
@@ -0,0 +1,231 @@
+<?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: TrimmedTable.php 20096 2010-01-06 02:05:09Z bkarwin $
+ */
+
+/** Zend_Pdf_Cmap */
+require_once 'Zend/Pdf/Cmap.php';
+
+
+/**
+ * Implements the "trimmed table mapping" character map (type 6).
+ *
+ * This table type is preferred over the {@link Zend_Pdf_Cmap_SegmentToDelta}
+ * table when the Unicode characters covered by the font fall into a single
+ * contiguous range.
+ *
+ * @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_TrimmedTable extends Zend_Pdf_Cmap
+{
+ /**** Instance Variables ****/
+
+
+ /**
+ * The starting character code covered by this table.
+ * @var integer
+ */
+ protected $_startCode = 0;
+
+ /**
+ * The ending character code covered by this table.
+ * @var integer
+ */
+ protected $_endCode = 0;
+
+ /**
+ * Glyph index array. Stores the actual glyph numbers.
+ * @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 => $characterCode) {
+
+ if (($characterCode < $this->_startCode) || ($characterCode > $this->_endCode)) {
+ $glyphNumbers[$key] = Zend_Pdf_Cmap::MISSING_CHARACTER_GLYPH;
+ continue;
+ }
+
+ $glyphIndex = $characterCode - $this->_startCode;
+ $glyphNumbers[$key] = $this->_glyphIndexArray[$glyphIndex];
+
+ }
+ 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 (($characterCode < $this->_startCode) || ($characterCode > $this->_endCode)) {
+ return Zend_Pdf_Cmap::MISSING_CHARACTER_GLYPH;
+ }
+ $glyphIndex = $characterCode - $this->_startCode;
+ return $this->_glyphIndexArray[$glyphIndex];
+ }
+
+ /**
+ * Returns an array containing the Unicode characters that have entries in
+ * this character map.
+ *
+ * @return array Unicode character codes.
+ */
+ public function getCoveredCharacters()
+ {
+ $characterCodes = array();
+ for ($code = $this->_startCode; $code <= $this->_endCode; $code++) {
+ $characterCodes[] = $code;
+ }
+ return $characterCodes;
+ }
+
+
+ /**
+ * 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()
+ {
+ $glyphNumbers = array();
+ for ($code = $this->_startCode; $code <= $this->_endCode; $code++) {
+ $glyphNumbers[$code] = $this->_glyphIndexArray[$code - $this->_startCode];
+ }
+
+ return $glyphNumbers;
+ }
+
+
+ /* 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: The table should be at least 9 bytes in size.
+ */
+ $actualLength = strlen($cmapData);
+ if ($actualLength < 9) {
+ 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_TRIMMED_TABLE) {
+ 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?
+ }
+
+ $this->_startCode = $this->_extractUInt2($cmapData, 6);
+
+ $entryCount = $this->_extractUInt2($cmapData, 8);
+ $expectedCount = ($length - 10) >> 1;
+ if ($entryCount != $expectedCount) {
+ require_once 'Zend/Pdf/Exception.php';
+ throw new Zend_Pdf_Exception("Entry count is wrong; expected: $expectedCount; actual: $entryCount",
+ Zend_Pdf_Exception::CMAP_WRONG_ENTRY_COUNT);
+ }
+
+ $this->_endCode = $this->_startCode + $entryCount - 1;
+
+ $offset = 10;
+ for ($i = 0; $i < $entryCount; $i++, $offset += 2) {
+ $this->_glyphIndexArray[] = $this->_extractUInt2($cmapData, $offset);
+ }
+
+ /* Sanity check: After reading all of the data, we should be at the end
+ * of the table.
+ */
+ if ($offset != $length) {
+ require_once 'Zend/Pdf/Exception.php';
+ throw new Zend_Pdf_Exception("Ending offset ($offset) does not match length ($length)",
+ Zend_Pdf_Exception::CMAP_FINAL_OFFSET_NOT_LENGTH);
+ }
+ }
+
+}