/vendor/dompdf/dompdf/lib/Cpdf.php
PHP | 5122 lines | 3296 code | 772 blank | 1054 comment | 560 complexity | 5b783bb56ccd74d70400cf0c079b683b MD5 | raw file
Possible License(s): Apache-2.0, AGPL-1.0, GPL-2.0, LGPL-3.0, BSD-3-Clause, Unlicense, MPL-2.0, GPL-3.0, LGPL-2.1
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- <?php
- /**
- * A PHP class to provide the basic functionality to create a pdf document without
- * any requirement for additional modules.
- *
- * Extended by Orion Richardson to support Unicode / UTF-8 characters using
- * TCPDF and others as a guide.
- *
- * @author Wayne Munro <pdf@ros.co.nz>
- * @author Orion Richardson <orionr@yahoo.com>
- * @author Helmut Tischer <htischer@weihenstephan.org>
- * @author Ryan H. Masten <ryan.masten@gmail.com>
- * @author Brian Sweeney <eclecticgeek@gmail.com>
- * @author Fabien MĂŠnager <fabien.menager@gmail.com>
- * @license Public Domain http://creativecommons.org/licenses/publicdomain/
- * @package Cpdf
- */
- use FontLib\Font;
- use FontLib\BinaryStream;
- class Cpdf
- {
- /**
- * @var integer The current number of pdf objects in the document
- */
- public $numObj = 0;
- /**
- * @var array This array contains all of the pdf objects, ready for final assembly
- */
- public $objects = array();
- /**
- * @var integer The objectId (number within the objects array) of the document catalog
- */
- public $catalogId;
- /**
- * @var array Array carrying information about the fonts that the system currently knows about
- * Used to ensure that a font is not loaded twice, among other things
- */
- public $fonts = array();
- /**
- * @var string The default font metrics file to use if no other font has been loaded.
- * The path to the directory containing the font metrics should be included
- */
- public $defaultFont = './fonts/Helvetica.afm';
- /**
- * @string A record of the current font
- */
- public $currentFont = '';
- /**
- * @var string The current base font
- */
- public $currentBaseFont = '';
- /**
- * @var integer The number of the current font within the font array
- */
- public $currentFontNum = 0;
- /**
- * @var integer
- */
- public $currentNode;
- /**
- * @var integer Object number of the current page
- */
- public $currentPage;
- /**
- * @var integer Object number of the currently active contents block
- */
- public $currentContents;
- /**
- * @var integer Number of fonts within the system
- */
- public $numFonts = 0;
- /**
- * @var integer Number of graphic state resources used
- */
- private $numStates = 0;
- /**
- * @var array Current color for fill operations, defaults to inactive value,
- * all three components should be between 0 and 1 inclusive when active
- */
- public $currentColor = null;
- /**
- * @var array Current color for stroke operations (lines etc.)
- */
- public $currentStrokeColor = null;
- /**
- * @var string Fill rule (nonzero or evenodd)
- */
- public $fillRule = "nonzero";
- /**
- * @var string Current style that lines are drawn in
- */
- public $currentLineStyle = '';
- /**
- * @var array Current line transparency (partial graphics state)
- */
- public $currentLineTransparency = array("mode" => "Normal", "opacity" => 1.0);
- /**
- * array Current fill transparency (partial graphics state)
- */
- public $currentFillTransparency = array("mode" => "Normal", "opacity" => 1.0);
- /**
- * @var array An array which is used to save the state of the document, mainly the colors and styles
- * it is used to temporarily change to another state, the change back to what it was before
- */
- public $stateStack = array();
- /**
- * @var integer Number of elements within the state stack
- */
- public $nStateStack = 0;
- /**
- * @var integer Number of page objects within the document
- */
- public $numPages = 0;
- /**
- * @var array Object Id storage stack
- */
- public $stack = array();
- /**
- * @var integer Number of elements within the object Id storage stack
- */
- public $nStack = 0;
- /**
- * an array which contains information about the objects which are not firmly attached to pages
- * these have been added with the addObject function
- */
- public $looseObjects = array();
- /**
- * array contains information about how the loose objects are to be added to the document
- */
- public $addLooseObjects = array();
- /**
- * @var integer The objectId of the information object for the document
- * this contains authorship, title etc.
- */
- public $infoObject = 0;
- /**
- * @var integer Number of images being tracked within the document
- */
- public $numImages = 0;
- /**
- * @var array An array containing options about the document
- * it defaults to turning on the compression of the objects
- */
- public $options = array('compression' => true);
- /**
- * @var integer The objectId of the first page of the document
- */
- public $firstPageId;
- /**
- * @var integer The object Id of the procset object
- */
- public $procsetObjectId;
- /**
- * @var array Store the information about the relationship between font families
- * this used so that the code knows which font is the bold version of another font, etc.
- * the value of this array is initialised in the constructor function.
- */
- public $fontFamilies = array();
- /**
- * @var string Folder for php serialized formats of font metrics files.
- * If empty string, use same folder as original metrics files.
- * This can be passed in from class creator.
- * If this folder does not exist or is not writable, Cpdf will be **much** slower.
- * Because of potential trouble with php safe mode, folder cannot be created at runtime.
- */
- public $fontcache = '';
- /**
- * @var integer The version of the font metrics cache file.
- * This value must be manually incremented whenever the internal font data structure is modified.
- */
- public $fontcacheVersion = 6;
- /**
- * @var string Temporary folder.
- * If empty string, will attempt system tmp folder.
- * This can be passed in from class creator.
- */
- public $tmp = '';
- /**
- * @var string Track if the current font is bolded or italicised
- */
- public $currentTextState = '';
- /**
- * @var string Messages are stored here during processing, these can be selected afterwards to give some useful debug information
- */
- public $messages = '';
- /**
- * @var string The encryption array for the document encryption is stored here
- */
- public $arc4 = '';
- /**
- * @var integer The object Id of the encryption information
- */
- public $arc4_objnum = 0;
- /**
- * @var string The file identifier, used to uniquely identify a pdf document
- */
- public $fileIdentifier = '';
- /**
- * @var boolean A flag to say if a document is to be encrypted or not
- */
- public $encrypted = false;
- /**
- * @var string The encryption key for the encryption of all the document content (structure is not encrypted)
- */
- public $encryptionKey = '';
- /**
- * @var array Array which forms a stack to keep track of nested callback functions
- */
- public $callback = array();
- /**
- * @var integer The number of callback functions in the callback array
- */
- public $nCallback = 0;
- /**
- * @var array Store label->id pairs for named destinations, these will be used to replace internal links
- * done this way so that destinations can be defined after the location that links to them
- */
- public $destinations = array();
- /**
- * @var array Store the stack for the transaction commands, each item in here is a record of the values of all the
- * publiciables within the class, so that the user can rollback at will (from each 'start' command)
- * note that this includes the objects array, so these can be large.
- */
- public $checkpoint = '';
- /**
- * @var array Table of Image origin filenames and image labels which were already added with o_image().
- * Allows to merge identical images
- */
- public $imagelist = array();
- /**
- * @var boolean Whether the text passed in should be treated as Unicode or just local character set.
- */
- public $isUnicode = false;
- /**
- * @var string the JavaScript code of the document
- */
- public $javascript = '';
- /**
- * @var boolean whether the compression is possible
- */
- protected $compressionReady = false;
- /**
- * @var array Current page size
- */
- protected $currentPageSize = array("width" => 0, "height" => 0);
- /**
- * @var array All the chars that will be required in the font subsets
- */
- protected $stringSubsets = array();
- /**
- * @var string The target internal encoding
- */
- static protected $targetEncoding = 'iso-8859-1';
- /**
- * @var array The list of the core fonts
- */
- static protected $coreFonts = array(
- 'courier',
- 'courier-bold',
- 'courier-oblique',
- 'courier-boldoblique',
- 'helvetica',
- 'helvetica-bold',
- 'helvetica-oblique',
- 'helvetica-boldoblique',
- 'times-roman',
- 'times-bold',
- 'times-italic',
- 'times-bolditalic',
- 'symbol',
- 'zapfdingbats'
- );
- /**
- * Class constructor
- * This will start a new document
- *
- * @param array $pageSize Array of 4 numbers, defining the bottom left and upper right corner of the page. first two are normally zero.
- * @param boolean $isUnicode Whether text will be treated as Unicode or not.
- * @param string $fontcache The font cache folder
- * @param string $tmp The temporary folder
- */
- function __construct($pageSize = array(0, 0, 612, 792), $isUnicode = false, $fontcache = '', $tmp = '')
- {
- $this->isUnicode = $isUnicode;
- $this->fontcache = rtrim($fontcache, DIRECTORY_SEPARATOR."/\\");
- $this->tmp = ($tmp !== '' ? $tmp : sys_get_temp_dir());
- $this->newDocument($pageSize);
- $this->compressionReady = function_exists('gzcompress');
- if (in_array('Windows-1252', mb_list_encodings())) {
- self::$targetEncoding = 'Windows-1252';
- }
- // also initialize the font families that are known about already
- $this->setFontFamily('init');
- // $this->fileIdentifier = md5('xxxxxxxx'.time());
- }
- /**
- * Document object methods (internal use only)
- *
- * There is about one object method for each type of object in the pdf document
- * Each function has the same call list ($id,$action,$options).
- * $id = the object ID of the object, or what it is to be if it is being created
- * $action = a string specifying the action to be performed, though ALL must support:
- * 'new' - create the object with the id $id
- * 'out' - produce the output for the pdf object
- * $options = optional, a string or array containing the various parameters for the object
- *
- * These, in conjunction with the output function are the ONLY way for output to be produced
- * within the pdf 'file'.
- */
- /**
- * Destination object, used to specify the location for the user to jump to, presently on opening
- */
- protected function o_destination($id, $action, $options = '')
- {
- if ($action !== 'new') {
- $o = &$this->objects[$id];
- }
- switch ($action) {
- case 'new':
- $this->objects[$id] = array('t' => 'destination', 'info' => array());
- $tmp = '';
- switch ($options['type']) {
- case 'XYZ':
- case 'FitR':
- $tmp = ' ' . $options['p3'] . $tmp;
- case 'FitH':
- case 'FitV':
- case 'FitBH':
- case 'FitBV':
- $tmp = ' ' . $options['p1'] . ' ' . $options['p2'] . $tmp;
- case 'Fit':
- case 'FitB':
- $tmp = $options['type'] . $tmp;
- $this->objects[$id]['info']['string'] = $tmp;
- $this->objects[$id]['info']['page'] = $options['page'];
- }
- break;
- case 'out':
- $tmp = $o['info'];
- $res = "\n$id 0 obj\n" . '[' . $tmp['page'] . ' 0 R /' . $tmp['string'] . "]\nendobj";
- return $res;
- }
- }
- /**
- * set the viewer preferences
- */
- protected function o_viewerPreferences($id, $action, $options = '')
- {
- if ($action !== 'new') {
- $o = &$this->objects[$id];
- }
- switch ($action) {
- case 'new':
- $this->objects[$id] = array('t' => 'viewerPreferences', 'info' => array());
- break;
- case 'add':
- foreach ($options as $k => $v) {
- switch ($k) {
- // Boolean keys
- case 'HideToolbar':
- case 'HideMenubar':
- case 'HideWindowUI':
- case 'FitWindow':
- case 'CenterWindow':
- case 'DisplayDocTitle':
- case 'PickTrayByPDFSize':
- $o['info'][$k] = (bool)$v;
- break;
- // Integer keys
- case 'NumCopies':
- $o['info'][$k] = (int)$v;
- break;
- // Name keys
- case 'ViewArea':
- case 'ViewClip':
- case 'PrintClip':
- case 'PrintArea':
- $o['info'][$k] = (string)$v;
- break;
- // Named with limited valid values
- case 'NonFullScreenPageMode':
- if (!in_array($v, array('UseNone', 'UseOutlines', 'UseThumbs', 'UseOC'))) {
- continue;
- }
- $o['info'][$k] = $v;
- break;
- case 'Direction':
- if (!in_array($v, array('L2R', 'R2L'))) {
- continue;
- }
- $o['info'][$k] = $v;
- break;
- case 'PrintScaling':
- if (!in_array($v, array('None', 'AppDefault'))) {
- continue;
- }
- $o['info'][$k] = $v;
- break;
- case 'Duplex':
- if (!in_array($v, array('None', 'AppDefault'))) {
- continue;
- }
- $o['info'][$k] = $v;
- break;
- // Integer array
- case 'PrintPageRange':
- // Cast to integer array
- foreach ($v as $vK => $vV) {
- $v[$vK] = (int)$vV;
- }
- $o['info'][$k] = array_values($v);
- break;
- }
- }
- break;
- case 'out':
- $res = "\n$id 0 obj\n<< ";
- foreach ($o['info'] as $k => $v) {
- if (is_string($v)) {
- $v = '/' . $v;
- } elseif (is_int($v)) {
- $v = (string) $v;
- } elseif (is_bool($v)) {
- $v = ($v ? 'true' : 'false');
- } elseif (is_array($v)) {
- $v = '[' . implode(' ', $v) . ']';
- }
- $res .= "\n/$k $v";
- }
- $res .= "\n>>\n";
- return $res;
- }
- }
- /**
- * define the document catalog, the overall controller for the document
- */
- protected function o_catalog($id, $action, $options = '')
- {
- if ($action !== 'new') {
- $o = &$this->objects[$id];
- }
- switch ($action) {
- case 'new':
- $this->objects[$id] = array('t' => 'catalog', 'info' => array());
- $this->catalogId = $id;
- break;
- case 'outlines':
- case 'pages':
- case 'openHere':
- case 'javascript':
- $o['info'][$action] = $options;
- break;
- case 'viewerPreferences':
- if (!isset($o['info']['viewerPreferences'])) {
- $this->numObj++;
- $this->o_viewerPreferences($this->numObj, 'new');
- $o['info']['viewerPreferences'] = $this->numObj;
- }
- $vp = $o['info']['viewerPreferences'];
- $this->o_viewerPreferences($vp, 'add', $options);
- break;
- case 'out':
- $res = "\n$id 0 obj\n<< /Type /Catalog";
- foreach ($o['info'] as $k => $v) {
- switch ($k) {
- case 'outlines':
- $res .= "\n/Outlines $v 0 R";
- break;
- case 'pages':
- $res .= "\n/Pages $v 0 R";
- break;
- case 'viewerPreferences':
- $res .= "\n/ViewerPreferences $v 0 R";
- break;
- case 'openHere':
- $res .= "\n/OpenAction $v 0 R";
- break;
- case 'javascript':
- $res .= "\n/Names <</JavaScript $v 0 R>>";
- break;
- }
- }
- $res .= " >>\nendobj";
- return $res;
- }
- }
- /**
- * object which is a parent to the pages in the document
- */
- protected function o_pages($id, $action, $options = '')
- {
- if ($action !== 'new') {
- $o = &$this->objects[$id];
- }
- switch ($action) {
- case 'new':
- $this->objects[$id] = array('t' => 'pages', 'info' => array());
- $this->o_catalog($this->catalogId, 'pages', $id);
- break;
- case 'page':
- if (!is_array($options)) {
- // then it will just be the id of the new page
- $o['info']['pages'][] = $options;
- } else {
- // then it should be an array having 'id','rid','pos', where rid=the page to which this one will be placed relative
- // and pos is either 'before' or 'after', saying where this page will fit.
- if (isset($options['id']) && isset($options['rid']) && isset($options['pos'])) {
- $i = array_search($options['rid'], $o['info']['pages']);
- if (isset($o['info']['pages'][$i]) && $o['info']['pages'][$i] == $options['rid']) {
- // then there is a match
- // make a space
- switch ($options['pos']) {
- case 'before':
- $k = $i;
- break;
- case 'after':
- $k = $i + 1;
- break;
- default:
- $k = -1;
- break;
- }
- if ($k >= 0) {
- for ($j = count($o['info']['pages']) - 1; $j >= $k; $j--) {
- $o['info']['pages'][$j + 1] = $o['info']['pages'][$j];
- }
- $o['info']['pages'][$k] = $options['id'];
- }
- }
- }
- }
- break;
- case 'procset':
- $o['info']['procset'] = $options;
- break;
- case 'mediaBox':
- $o['info']['mediaBox'] = $options;
- // which should be an array of 4 numbers
- $this->currentPageSize = array('width' => $options[2], 'height' => $options[3]);
- break;
- case 'font':
- $o['info']['fonts'][] = array('objNum' => $options['objNum'], 'fontNum' => $options['fontNum']);
- break;
- case 'extGState':
- $o['info']['extGStates'][] = array('objNum' => $options['objNum'], 'stateNum' => $options['stateNum']);
- break;
- case 'xObject':
- $o['info']['xObjects'][] = array('objNum' => $options['objNum'], 'label' => $options['label']);
- break;
- case 'out':
- if (count($o['info']['pages'])) {
- $res = "\n$id 0 obj\n<< /Type /Pages\n/Kids [";
- foreach ($o['info']['pages'] as $v) {
- $res .= "$v 0 R\n";
- }
- $res .= "]\n/Count " . count($this->objects[$id]['info']['pages']);
- if ((isset($o['info']['fonts']) && count($o['info']['fonts'])) ||
- isset($o['info']['procset']) ||
- (isset($o['info']['extGStates']) && count($o['info']['extGStates']))
- ) {
- $res .= "\n/Resources <<";
- if (isset($o['info']['procset'])) {
- $res .= "\n/ProcSet " . $o['info']['procset'] . " 0 R";
- }
- if (isset($o['info']['fonts']) && count($o['info']['fonts'])) {
- $res .= "\n/Font << ";
- foreach ($o['info']['fonts'] as $finfo) {
- $res .= "\n/F" . $finfo['fontNum'] . " " . $finfo['objNum'] . " 0 R";
- }
- $res .= "\n>>";
- }
- if (isset($o['info']['xObjects']) && count($o['info']['xObjects'])) {
- $res .= "\n/XObject << ";
- foreach ($o['info']['xObjects'] as $finfo) {
- $res .= "\n/" . $finfo['label'] . " " . $finfo['objNum'] . " 0 R";
- }
- $res .= "\n>>";
- }
- if (isset($o['info']['extGStates']) && count($o['info']['extGStates'])) {
- $res .= "\n/ExtGState << ";
- foreach ($o['info']['extGStates'] as $gstate) {
- $res .= "\n/GS" . $gstate['stateNum'] . " " . $gstate['objNum'] . " 0 R";
- }
- $res .= "\n>>";
- }
- $res .= "\n>>";
- if (isset($o['info']['mediaBox'])) {
- $tmp = $o['info']['mediaBox'];
- $res .= "\n/MediaBox [" . sprintf(
- '%.3F %.3F %.3F %.3F',
- $tmp[0],
- $tmp[1],
- $tmp[2],
- $tmp[3]
- ) . ']';
- }
- }
- $res .= "\n >>\nendobj";
- } else {
- $res = "\n$id 0 obj\n<< /Type /Pages\n/Count 0\n>>\nendobj";
- }
- return $res;
- }
- }
- /**
- * define the outlines in the doc, empty for now
- */
- protected function o_outlines($id, $action, $options = '')
- {
- if ($action !== 'new') {
- $o = &$this->objects[$id];
- }
- switch ($action) {
- case 'new':
- $this->objects[$id] = array('t' => 'outlines', 'info' => array('outlines' => array()));
- $this->o_catalog($this->catalogId, 'outlines', $id);
- break;
- case 'outline':
- $o['info']['outlines'][] = $options;
- break;
- case 'out':
- if (count($o['info']['outlines'])) {
- $res = "\n$id 0 obj\n<< /Type /Outlines /Kids [";
- foreach ($o['info']['outlines'] as $v) {
- $res .= "$v 0 R ";
- }
- $res .= "] /Count " . count($o['info']['outlines']) . " >>\nendobj";
- } else {
- $res = "\n$id 0 obj\n<< /Type /Outlines /Count 0 >>\nendobj";
- }
- return $res;
- }
- }
- /**
- * an object to hold the font description
- */
- protected function o_font($id, $action, $options = '')
- {
- if ($action !== 'new') {
- $o = &$this->objects[$id];
- }
- switch ($action) {
- case 'new':
- $this->objects[$id] = array(
- 't' => 'font',
- 'info' => array(
- 'name' => $options['name'],
- 'fontFileName' => $options['fontFileName'],
- 'SubType' => 'Type1'
- )
- );
- $fontNum = $this->numFonts;
- $this->objects[$id]['info']['fontNum'] = $fontNum;
- // deal with the encoding and the differences
- if (isset($options['differences'])) {
- // then we'll need an encoding dictionary
- $this->numObj++;
- $this->o_fontEncoding($this->numObj, 'new', $options);
- $this->objects[$id]['info']['encodingDictionary'] = $this->numObj;
- } else {
- if (isset($options['encoding'])) {
- // we can specify encoding here
- switch ($options['encoding']) {
- case 'WinAnsiEncoding':
- case 'MacRomanEncoding':
- case 'MacExpertEncoding':
- $this->objects[$id]['info']['encoding'] = $options['encoding'];
- break;
- case 'none':
- break;
- default:
- $this->objects[$id]['info']['encoding'] = 'WinAnsiEncoding';
- break;
- }
- } else {
- $this->objects[$id]['info']['encoding'] = 'WinAnsiEncoding';
- }
- }
- if ($this->fonts[$options['fontFileName']]['isUnicode']) {
- // For Unicode fonts, we need to incorporate font data into
- // sub-sections that are linked from the primary font section.
- // Look at o_fontGIDtoCID and o_fontDescendentCID functions
- // for more information.
- //
- // All of this code is adapted from the excellent changes made to
- // transform FPDF to TCPDF (http://tcpdf.sourceforge.net/)
- $toUnicodeId = ++$this->numObj;
- $this->o_contents($toUnicodeId, 'new', 'raw');
- $this->objects[$id]['info']['toUnicode'] = $toUnicodeId;
- $stream = <<<EOT
- /CIDInit /ProcSet findresource begin
- 12 dict begin
- begincmap
- /CIDSystemInfo
- <</Registry (Adobe)
- /Ordering (UCS)
- /Supplement 0
- >> def
- /CMapName /Adobe-Identity-UCS def
- /CMapType 2 def
- 1 begincodespacerange
- <0000> <FFFF>
- endcodespacerange
- 1 beginbfrange
- <0000> <FFFF> <0000>
- endbfrange
- endcmap
- CMapName currentdict /CMap defineresource pop
- end
- end
- EOT;
- $res = "<</Length " . mb_strlen($stream, '8bit') . " >>\n";
- $res .= "stream\n" . $stream . "\nendstream";
- $this->objects[$toUnicodeId]['c'] = $res;
- $cidFontId = ++$this->numObj;
- $this->o_fontDescendentCID($cidFontId, 'new', $options);
- $this->objects[$id]['info']['cidFont'] = $cidFontId;
- }
- // also tell the pages node about the new font
- $this->o_pages($this->currentNode, 'font', array('fontNum' => $fontNum, 'objNum' => $id));
- break;
- case 'add':
- foreach ($options as $k => $v) {
- switch ($k) {
- case 'BaseFont':
- $o['info']['name'] = $v;
- break;
- case 'FirstChar':
- case 'LastChar':
- case 'Widths':
- case 'FontDescriptor':
- case 'SubType':
- $this->addMessage('o_font ' . $k . " : " . $v);
- $o['info'][$k] = $v;
- break;
- }
- }
- // pass values down to descendent font
- if (isset($o['info']['cidFont'])) {
- $this->o_fontDescendentCID($o['info']['cidFont'], 'add', $options);
- }
- break;
- case 'out':
- if ($this->fonts[$this->objects[$id]['info']['fontFileName']]['isUnicode']) {
- // For Unicode fonts, we need to incorporate font data into
- // sub-sections that are linked from the primary font section.
- // Look at o_fontGIDtoCID and o_fontDescendentCID functions
- // for more information.
- //
- // All of this code is adapted from the excellent changes made to
- // transform FPDF to TCPDF (http://tcpdf.sourceforge.net/)
- $res = "\n$id 0 obj\n<</Type /Font\n/Subtype /Type0\n";
- $res .= "/BaseFont /" . $o['info']['name'] . "\n";
- // The horizontal identity mapping for 2-byte CIDs; may be used
- // with CIDFonts using any Registry, Ordering, and Supplement values.
- $res .= "/Encoding /Identity-H\n";
- $res .= "/DescendantFonts [" . $o['info']['cidFont'] . " 0 R]\n";
- $res .= "/ToUnicode " . $o['info']['toUnicode'] . " 0 R\n";
- $res .= ">>\n";
- $res .= "endobj";
- } else {
- $res = "\n$id 0 obj\n<< /Type /Font\n/Subtype /" . $o['info']['SubType'] . "\n";
- $res .= "/Name /F" . $o['info']['fontNum'] . "\n";
- $res .= "/BaseFont /" . $o['info']['name'] . "\n";
- if (isset($o['info']['encodingDictionary'])) {
- // then place a reference to the dictionary
- $res .= "/Encoding " . $o['info']['encodingDictionary'] . " 0 R\n";
- } else {
- if (isset($o['info']['encoding'])) {
- // use the specified encoding
- $res .= "/Encoding /" . $o['info']['encoding'] . "\n";
- }
- }
- if (isset($o['info']['FirstChar'])) {
- $res .= "/FirstChar " . $o['info']['FirstChar'] . "\n";
- }
- if (isset($o['info']['LastChar'])) {
- $res .= "/LastChar " . $o['info']['LastChar'] . "\n";
- }
- if (isset($o['info']['Widths'])) {
- $res .= "/Widths " . $o['info']['Widths'] . " 0 R\n";
- }
- if (isset($o['info']['FontDescriptor'])) {
- $res .= "/FontDescriptor " . $o['info']['FontDescriptor'] . " 0 R\n";
- }
- $res .= ">>\n";
- $res .= "endobj";
- }
- return $res;
- }
- }
- /**
- * a font descriptor, needed for including additional fonts
- */
- protected function o_fontDescriptor($id, $action, $options = '')
- {
- if ($action !== 'new') {
- $o = &$this->objects[$id];
- }
- switch ($action) {
- case 'new':
- $this->objects[$id] = array('t' => 'fontDescriptor', 'info' => $options);
- break;
- case 'out':
- $res = "\n$id 0 obj\n<< /Type /FontDescriptor\n";
- foreach ($o['info'] as $label => $value) {
- switch ($label) {
- case 'Ascent':
- case 'CapHeight':
- case 'Descent':
- case 'Flags':
- case 'ItalicAngle':
- case 'StemV':
- case 'AvgWidth':
- case 'Leading':
- case 'MaxWidth':
- case 'MissingWidth':
- case 'StemH':
- case 'XHeight':
- case 'CharSet':
- if (mb_strlen($value, '8bit')) {
- $res .= "/$label $value\n";
- }
- break;
- case 'FontFile':
- case 'FontFile2':
- case 'FontFile3':
- $res .= "/$label $value 0 R\n";
- break;
- case 'FontBBox':
- $res .= "/$label [$value[0] $value[1] $value[2] $value[3]]\n";
- break;
- case 'FontName':
- $res .= "/$label /$value\n";
- break;
- }
- }
- $res .= ">>\nendobj";
- return $res;
- }
- }
- /**
- * the font encoding
- */
- protected function o_fontEncoding($id, $action, $options = '')
- {
- if ($action !== 'new') {
- $o = &$this->objects[$id];
- }
- switch ($action) {
- case 'new':
- // the options array should contain 'differences' and maybe 'encoding'
- $this->objects[$id] = array('t' => 'fontEncoding', 'info' => $options);
- break;
- case 'out':
- $res = "\n$id 0 obj\n<< /Type /Encoding\n";
- if (!isset($o['info']['encoding'])) {
- $o['info']['encoding'] = 'WinAnsiEncoding';
- }
- if ($o['info']['encoding'] !== 'none') {
- $res .= "/BaseEncoding /" . $o['info']['encoding'] . "\n";
- }
- $res .= "/Differences \n[";
- $onum = -100;
- foreach ($o['info']['differences'] as $num => $label) {
- if ($num != $onum + 1) {
- // we cannot make use of consecutive numbering
- $res .= "\n$num /$label";
- } else {
- $res .= " /$label";
- }
- $onum = $num;
- }
- $res .= "\n]\n>>\nendobj";
- return $res;
- }
- }
- /**
- * a descendent cid font, needed for unicode fonts
- */
- protected function o_fontDescendentCID($id, $action, $options = '')
- {
- if ($action !== 'new') {
- $o = &$this->objects[$id];
- }
- switch ($action) {
- case 'new':
- $this->objects[$id] = array('t' => 'fontDescendentCID', 'info' => $options);
- // we need a CID system info section
- $cidSystemInfoId = ++$this->numObj;
- $this->o_contents($cidSystemInfoId, 'new', 'raw');
- $this->objects[$id]['info']['cidSystemInfo'] = $cidSystemInfoId;
- $res = "<</Registry (Adobe)\n"; // A string identifying an issuer of character collections
- $res .= "/Ordering (UCS)\n"; // A string that uniquely names a character collection issued by a specific registry
- $res .= "/Supplement 0\n"; // The supplement number of the character collection.
- $res .= ">>";
- $this->objects[$cidSystemInfoId]['c'] = $res;
- // and a CID to GID map
- $cidToGidMapId = ++$this->numObj;
- $this->o_fontGIDtoCIDMap($cidToGidMapId, 'new', $options);
- $this->objects[$id]['info']['cidToGidMap'] = $cidToGidMapId;
- break;
- case 'add':
- foreach ($options as $k => $v) {
- switch ($k) {
- case 'BaseFont':
- $o['info']['name'] = $v;
- break;
- case 'FirstChar':
- case 'LastChar':
- case 'MissingWidth':
- case 'FontDescriptor':
- case 'SubType':
- $this->addMessage("o_fontDescendentCID $k : $v");
- $o['info'][$k] = $v;
- break;
- }
- }
- // pass values down to cid to gid map
- $this->o_fontGIDtoCIDMap($o['info']['cidToGidMap'], 'add', $options);
- break;
- case 'out':
- $res = "\n$id 0 obj\n";
- $res .= "<</Type /Font\n";
- $res .= "/Subtype /CIDFontType2\n";
- $res .= "/BaseFont /" . $o['info']['name'] . "\n";
- $res .= "/CIDSystemInfo " . $o['info']['cidSystemInfo'] . " 0 R\n";
- // if (isset($o['info']['FirstChar'])) {
- // $res.= "/FirstChar ".$o['info']['FirstChar']."\n";
- // }
- // if (isset($o['info']['LastChar'])) {
- // $res.= "/LastChar ".$o['info']['LastChar']."\n";
- // }
- if (isset($o['info']['FontDescriptor'])) {
- $res .= "/FontDescriptor " . $o['info']['FontDescriptor'] . " 0 R\n";
- }
- if (isset($o['info']['MissingWidth'])) {
- $res .= "/DW " . $o['info']['MissingWidth'] . "\n";
- }
- if (isset($o['info']['fontFileName']) && isset($this->fonts[$o['info']['fontFileName']]['CIDWidths'])) {
- $cid_widths = &$this->fonts[$o['info']['fontFileName']]['CIDWidths'];
- $w = '';
- foreach ($cid_widths as $cid => $width) {
- $w .= "$cid [$width] ";
- }
- $res .= "/W [$w]\n";
- }
- $res .= "/CIDToGIDMap " . $o['info']['cidToGidMap'] . " 0 R\n";
- $res .= ">>\n";
- $res .= "endobj";
- return $res;
- }
- }
- /**
- * a font glyph to character map, needed for unicode fonts
- */
- protected function o_fontGIDtoCIDMap($id, $action, $options = '')
- {
- if ($action !== 'new') {
- $o = &$this->objects[$id];
- }
- switch ($action) {
- case 'new':
- $this->objects[$id] = array('t' => 'fontGIDtoCIDMap', 'info' => $options);
- break;
- case 'out':
- $res = "\n$id 0 obj\n";
- $fontFileName = $o['info']['fontFileName'];
- $tmp = $this->fonts[$fontFileName]['CIDtoGID'] = base64_decode($this->fonts[$fontFileName]['CIDtoGID']);
- $compressed = isset($this->fonts[$fontFileName]['CIDtoGID_Compressed']) &&
- $this->fonts[$fontFileName]['CIDtoGID_Compressed'];
- if (!$compressed && isset($o['raw'])) {
- $res .= $tmp;
- } else {
- $res .= "<<";
- if (!$compressed && $this->compressionReady && $this->options['compression']) {
- // then implement ZLIB based compression on this content stream
- $compressed = true;
- $tmp = gzcompress($tmp, 6);
- }
- if ($compressed) {
- $res .= "\n/Filter /FlateDecode";
- }
- $res .= "\n/Length " . mb_strlen($tmp, '8bit') . ">>\nstream\n$tmp\nendstream";
- }
- $res .= "\nendobj";
- return $res;
- }
- }
- /**
- * the document procset, solves some problems with printing to old PS printers
- */
- protected function o_procset($id, $action, $options = '')
- {
- if ($action !== 'new') {
- $o = &$this->objects[$id];
- }
- switch ($action) {
- case 'new':
- $this->objects[$id] = array('t' => 'procset', 'info' => array('PDF' => 1, 'Text' => 1));
- $this->o_pages($this->currentNode, 'procset', $id);
- $this->procsetObjectId = $id;
- break;
- case 'add':
- // this is to add new items to the procset list, despite the fact that this is considered
- // obsolete, the items are required for printing to some postscript printers
- switch ($options) {
- case 'ImageB':
- case 'ImageC':
- case 'ImageI':
- $o['info'][$options] = 1;
- break;
- }
- break;
- case 'out':
- $res = "\n$id 0 obj\n[";
- foreach ($o['info'] as $label => $val) {
- $res .= "/$label ";
- }
- $res .= "]\nendobj";
- return $res;
- }
- }
- /**
- * define the document information
- */
- protected function o_info($id, $action, $options = '')
- {
- if ($action !== 'new') {
- $o = &$this->objects[$id];
- }
- switch ($action) {
- case 'new':
- $this->infoObject = $id;
- $date = 'D:' . @date('Ymd');
- $this->objects[$id] = array(
- 't' => 'info',
- 'info' => array(
- 'Producer' => 'CPDF (dompdf)',
- 'CreationDate' => $date
- )
- );
- break;
- case 'Title':
- case 'Author':
- case 'Subject':
- case 'Keywords':
- case 'Creator':
- case 'Producer':
- case 'CreationDate':
- case 'ModDate':
- case 'Trapped':
- $o['info'][$action] = $options;
- break;
- case 'out':
- if ($this->encrypted) {
- $this->encryptInit($id);
- }
- $res = "\n$id 0 obj\n<<\n";
- foreach ($o['info'] as $k => $v) {
- $res .= "/$k (";
- if ($this->encrypted) {
- $v = $this->ARC4($v);
- } // dates must be outputted as-is, without Unicode transformations
- elseif (!in_array($k, array('CreationDate', 'ModDate'))) {
- $v = $this->filterText($v);
- }
- $res .= $v;
- $res .= ")\n";
- }
- $res .= ">>\nendobj";
- return $res;
- }
- }
- /**
- * an action object, used to link to URLS initially
- */
- protected function o_action($id, $action, $options = '')
- {
- if ($action !== 'new') {
- $o = &$this->objects[$id];
- }
- switch ($action) {
- case 'new':
- if (is_array($options)) {
- $this->objects[$id] = array('t' => 'action', 'info' => $options, 'type' => $options['type']);
- } else {
- // then assume a URI action
- $this->objects[$id] = array('t' => 'action', 'info' => $options, 'type' => 'URI');
- }
- break;
- case 'out':
- if ($this->encrypted) {
- $this->encryptInit($id);
- }
- $res = "\n$id 0 obj\n<< /Type /Action";
- switch ($o['type']) {
- case 'ilink':
- if (!isset($this->destinations[(string)$o['info']['label']])) {
- break;
- }
- // there will be an 'label' setting, this is the name of the destination
- $res .= "\n/S /GoTo\n/D " . $this->destinations[(string)$o['info']['label']] . " 0 R";
- break;
- case 'URI':
- $res .= "\n/S /URI\n/URI (";
- if ($this->encrypted) {
- $res .= $this->filterText($this->ARC4($o['info']), true, false);
- } else {
- $res .= $this->filterText($o['info'], true, false);
- }
- $res .= ")";
- break;
- }
- $res .= "\n>>\nendobj";
- return $res;
- }
- }
- /**
- * an annotation object, this will add an annotation to the current page.
- * initially will support just link annotations
- */
- protected function o_annotation($id, $action, $options = '')
- {
- if ($action !== 'new') {
- $o = &$this->objects[$id];
- }
- switch ($action) {
- case 'new':
- // add the annotation to the current page
- $pageId = $this->currentPage;
- $this->o_page($pageId, 'annot', $id);
- // and add the action object which is going to be required
- switch ($options['type']) {
- case 'link':
- $this->objects[$id] = array('t' => 'annotation', 'info' => $options);
- $this->numObj++;
- $this->o_action($this->numObj, 'new', $options['url']);
- $this->objects[$id]['info']['actionId'] = $this->numObj;
- break;
- case 'ilink':
- // this is to a named internal link
- $label = $options['label'];
- $this->objects[$id] = array('t' => 'annotation', 'info' => $options);
- $this->numObj++;
- $this->o_action($this->numObj, 'new', array('type' => 'ilink', 'label' => $label));
- $this->objects[$id]['info']['actionId'] = $this->numObj;
- break;
- }
- break;
- case 'out':
- $res = "\n$id 0 obj\n<< /Type /Annot";
- switch ($o['info']['type']) {
- case 'link':
- case 'ilink':
- $res .= "\n/Subtype /Link";
- break;
- }
- $res .= "\n/A " . $o['info']['actionId'] . " 0 R";
- $res .= "\n/Border [0 0 0]";
- $res .= "\n/H /I";
- $res .= "\n/Rect [ ";
- foreach ($o['info']['rect'] as $v) {
- $res .= sprintf("%.4F ", $v);
- }
- $res .= "]";
- $res .= "\n>>\nendobj";
- return $res;
- }
- }
- /**
- * a page object, it also creates a contents object to hold its contents
- */
- protected function o_page($id, $action, $options = '')
- {
- if ($action !== 'new') {
- $o = &$this->objects[$id];
- }
- switch ($action) {
- case 'new':
- $this->numPages++;
- $this->objects[$id] = array(
- 't' => 'page',
- 'info' => array(
- 'parent' => $this->currentNode,
- 'pageNum' => $this->numPages,
- 'mediaBox' => $this->objects[$this->currentNode]['info']['mediaBox']
- )
- );
- if (is_array($options)) {
- // then this must be a page insertion, array should contain 'rid','pos'=[before|after]
- $options['id'] = $id;
- $this->o_pages($this->currentNode, 'page', $options);
- } else {
- $this->o_pages($this->currentNode, 'page', $id);
- }
- $this->currentPage = $id;
- //make a contents object to go with this page
- $this->numObj++;
- $this->o_contents($this->numObj, 'new', $id);
- $this->currentContents = $this->numObj;
- $this->objects[$id]['info']['contents'] = array();
- $this->objects[$id]['info']['contents'][] = $this->numObj;
- $match = ($this->numPages % 2 ? 'odd' : 'even');
- foreach ($this->addLooseObjects as $oId => $target) {
- if ($target === 'all…
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