/genetics/main/classes/dompdf/lib/class.pdf.php
PHP | 4972 lines | 2219 code | 1870 blank | 883 comment | 492 complexity | adc923628a98c7a4d5c43eea456518be MD5 | raw file
Possible License(s): LGPL-2.1
- <?php
- /**
- * Cpdf
- *
- * http://www.ros.co.nz/pdf
- *
- * A PHP class to provide the basic functionality to create a pdf document without
- * any requirement for additional modules.
- *
- * Note that they companion class CezPdf can be used to extend this class and dramatically
- * simplify the creation of documents.
- *
- * IMPORTANT NOTE
- * there is no warranty, implied or otherwise with this software.
- *
- * LICENCE
- * This code has been placed in the Public Domain for all to enjoy.
- *
- * @author Wayne Munro <pdf@ros.co.nz>
- * @version 009
- * @package Cpdf
- */
- class Cpdf {
- /**
- * the current number of pdf objects in the document
- */
- public $numObj = 0;
- /**
- * this array contains all of the pdf objects, ready for final assembly
- */
- public $objects = array();
- /**
- * the objectId (number within the objects array) of the document catalog
- */
- public $catalogId;
- /**
- * 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();
- /**
- * a record of the current font
- */
- public $currentFont = '';
- /**
- * the current base font
- */
- public $currentBaseFont = '';
- /**
- * the number of the current font within the font array
- */
- public $currentFontNum = 0;
- /**
- *
- */
- public $currentNode;
- /**
- * object number of the current page
- */
- public $currentPage;
- /**
- * object number of the currently active contents block
- */
- public $currentContents;
- /**
- * number of fonts within the system
- */
- public $numFonts = 0;
- /**
- * Number of graphic state resources used
- */
- private $numStates = 0;
- /**
- * current colour for fill operations, defaults to inactive value, all three components should be between 0 and 1 inclusive when active
- */
- public $currentColour = array('r'=>-1, 'g'=>-1, 'b'=>-1);
- /**
- * current colour for stroke operations (lines etc.)
- */
- public $currentStrokeColour = array('r'=>-1, 'g'=>-1, 'b'=>-1);
- /**
- * current style that lines are drawn in
- */
- public $currentLineStyle = '';
- /**
- * current line transparency (partial graphics state)
- */
- public $currentLineTransparency = array("mode" => "Normal", "opacity" => 1.0);
-
- /**
- * current fill transparency (partial graphics state)
- */
- public $currentFillTransparency = array("mode" => "Normal", "opacity" => 1.0);
-
- /**
- * an array which is used to save the state of the document, mainly the colours and styles
- * it is used to temporarily change to another state, the change back to what it was before
- */
- public $stateStack = array();
- /**
- * number of elements within the state stack
- */
- public $nStateStack = 0;
- /**
- * number of page objects within the document
- */
- public $numPages = 0;
- /**
- * object Id storage stack
- */
- public $stack = array();
- /**
- * 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 infomation about how the loose objects are to be added to the document
- */
- public $addLooseObjects = array();
- /**
- * the objectId of the information object for the document
- * this contains authorship, title etc.
- */
- public $infoObject = 0;
- /**
- * number of images being tracked within the document
- */
- public $numImages = 0;
- /**
- * an array containing options about the document
- * it defaults to turning on the compression of the objects
- */
- public $options = array('compression'=>1);
- /**
- * the objectId of the first page of the document
- */
- public $firstPageId;
- /**
- * used to track the last used value of the inter-word spacing, this is so that it is known
- * when the spacing is changed.
- */
- public $wordSpaceAdjust = 0;
- /**
- * the object Id of the procset object
- */
- public $procsetObjectId;
- /**
- * 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 constuctor function.
- */
- public $fontFamilies = array();
- /**
- * track if the current font is bolded or italicised
- */
- public $currentTextState = '';
- /**
- * messages are stored here during processing, these can be selected afterwards to give some useful debug information
- */
- public $messages = '';
- /**
- * the ancryption array for the document encryption is stored here
- */
- public $arc4 = '';
- /**
- * the object Id of the encryption information
- */
- public $arc4_objnum = 0;
- /**
- * the file identifier, used to uniquely identify a pdf document
- */
- public $fileIdentifier = '';
- /**
- * a flag to say if a document is to be encrypted or not
- */
- public $encrypted = 0;
- /**
- * the ancryption key for the encryption of all the document content (structure is not encrypted)
- */
- public $encryptionKey = '';
- /**
- * array which forms a stack to keep track of nested callback functions
- */
- public $callback = array();
- /**
- * the number of callback functions in the callback array
- */
- public $nCallback = 0;
- /**
- * 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();
- /**
- * 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 $checkpoint = '';
- /**
- * class constructor
- * this will start a new document
- * @var array array of 4 numbers, defining the bottom left and upper right corner of the page. first two are normally zero.
- */
- function Cpdf ($pageSize = array(0, 0, 612, 792)) {
- $this->newDocument($pageSize);
- // 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
- * $options = optional, a string or array containing the various parameters for the object
- *
- * These, in conjunction with the output function are the ONLY way for output to be produced
- * within the pdf 'file'.
- */
- /**
- *destination object, used to specify the location for the user to jump to, presently on opening
- */
- function o_destination($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\n";
- return $res;
- break;
- }
- }
- /**
- * set the viewer preferences
- */
- function o_viewerPreferences($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) {
- case 'HideToolbar':
- case 'HideMenubar':
- case 'HideWindowUI':
- case 'FitWindow':
- case 'CenterWindow':
- case 'NonFullScreenPageMode':
- case 'Direction':
- $o['info'][$k] = $v;
- break;
- }
- }
- break;
- case 'out':
- $res = "\n".$id." 0 obj\n".'<< ';
- foreach($o['info'] as $k=>$v) {
- $res.= "\n/".$k.' '.$v;
- }
- $res.= "\n>>\n";
- return $res;
- break;
- }
- }
- /**
- * define the document catalog, the overall controller for the document
- */
- function o_catalog($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':
- $o['info'][$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':
- $res.= "\n".'/ViewerPreferences '.$o['info']['viewerPreferences'].' 0 R';
- break;
- case 'openHere':
- $res.= "\n".'/OpenAction '.$o['info']['openHere'].' 0 R';
- break;
- }
- }
- $res.= " >>\nendobj";
- return $res;
- break;
- }
- }
- /**
- * object which is a parent to the pages in the document
- */
- function o_pages($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
- 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 $k=>$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";
- }
- $res.= " >>";
- }
- if (isset($o['info']['xObjects']) && count($o['info']['xObjects'])) {
- $res.= "\n/XObject << ";
- foreach($o['info']['xObjects'] as $finfo) {
- $res.= "\n/".$finfo['label']." ".$finfo['objNum']." 0 R";
- }
- $res.= " >>";
- }
- if ( isset($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.= " >>";
- }
- $res.= "\n>>";
- if (isset($o['info']['mediaBox'])) {
- $tmp = $o['info']['mediaBox'];
- $res.= "\n/MediaBox [".sprintf('%.3f', $tmp[0]) .' '.sprintf('%.3f', $tmp[1]) .' '.sprintf('%.3f', $tmp[2]) .' '.sprintf('%.3f', $tmp[3]) .']';
- }
- }
- $res.= "\n >>\nendobj";
- } else {
- $res = "\n".$id." 0 obj\n<< /Type /Pages\n/Count 0\n>>\nendobj";
- }
- return $res;
- break;
- }
- }
- /**
- * define the outlines in the doc, empty for now
- */
- function o_outlines($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 $k=>$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 $res;
- break;
- }
- }
- /**
- * an object to hold the font description
- */
- function o_font($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'], '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';
- }
- // 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;
- }
- }
- break;
- case 'out':
- $res = "\n".$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.= ">>\nendobj";
- return $res;
- break;
- }
- }
- /**
- * a font descriptor, needed for including additional fonts
- */
- function o_fontDescriptor($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 (strlen($value)) {
- $res.= '/'.$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 $res;
- break;
- }
- }
- /**
- * the font encoding
- */
- function o_fontEncoding($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 $res;
- break;
- }
- }
- /**
- * the document procset, solves some problems with printing to old PS printers
- */
- function o_procset($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 = $id;
- break;
- case 'add':
- // this is to add new items to the procset list, despite the fact that this is considered
- // obselete, the items are required for printing to some postscript printers
- switch ($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 $res;
- break;
- }
- }
- /**
- * define the document information
- */
- function o_info($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('Creator'=>'R and OS php pdf writer, http://www.ros.co.nz', '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) {
- $res.= $this->filterText($this->ARC4($v));
- } else {
- $res.= $this->filterText($v);
- }
- $res.= ")\n";
- }
- $res.= ">>\nendobj";
- return $res;
- break;
- }
- }
- /**
- * an action object, used to link to URLS initially
- */
- function o_action($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':
- // 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']));
- } else {
- $res.= $this->filterText($o['info']);
- }
- $res.= ")";
- break;
- }
- $res.= "\n>>\nendobj";
- return $res;
- break;
- }
- }
- /**
- * an annotation object, this will add an annotation to the current page.
- * initially will support just link annotations
- */
- function o_annotation($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 $res;
- break;
- }
- }
- /**
- * a page object, it also creates a contents object to hold its contents
- */
- function o_page($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));
- if (is_array($options)) {
- // then this must be a page insertion, array shoudl 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' || $match == $target) {
- $this->objects[$id]['info']['contents'][] = $oId;
- }
- }
- break;
- case 'content':
- $o['info']['contents'][] = $options;
- break;
- case 'annot':
- // add an annotation to this page
- if (!isset($o['info']['annot'])) {
- $o['info']['annot'] = array();
- }
- // $options should contain the id of the annotation dictionary
- $o['info']['annot'][] = $options;
- break;
- case 'out':
- $res = "\n".$id." 0 obj\n<< /Type /Page";
- $res.= "\n/Parent ".$o['info']['parent']." 0 R";
- if (isset($o['info']['annot'])) {
- $res.= "\n/Annots [";
- foreach($o['info']['annot'] as $aId) {
- $res.= " ".$aId." 0 R";
- }
- $res.= " ]";
- }
- $count = count($o['info']['contents']);
- if ($count == 1) {
- $res.= "\n/Contents ".$o['info']['contents'][0]." 0 R";
- } else if ($count>1) {
- $res.= "\n/Contents [\n";
- // reverse the page contents so added objects are below normal content
- //foreach (array_reverse($o['info']['contents']) as $cId) {
- // Back to normal now that I've got transparency working --Benj
- foreach ($o['info']['contents'] as $cId) {
- $res.= $cId." 0 R\n";
- }
- $res.= "]";
- }
- $res.= "\n>>\nendobj";
- return $res;
- break;
- }
- }
- /**
- * the contents objects hold all of the content which appears on pages
- */
- function o_contents($id, $action, $options = '') {
- if ($action != 'new') {
- $o = & $this->objects[$id];
- }
- switch ($action) {
- case 'new':
- $this->objects[$id] = array('t'=>'contents', 'c'=>'', 'info'=>array());
- if (strlen($options) && intval($options)) {
- // then this contents is the primary for a page
- $this->objects[$id]['onPage'] = $options;
- } else if ($options == 'raw') {
- // then this page contains some other type of system object
- $this->objects[$id]['raw'] = 1;
- }
- break;
- case 'add':
- // add more options to the decleration
- foreach ($options as $k=>$v) {
- $o['info'][$k] = $v;
- }
- case 'out':
- $tmp = $o['c'];
- $res = "\n".$id." 0 obj\n";
- if (isset($this->objects[$id]['raw'])) {
- $res.= $tmp;
- } else {
- $res.= "<<";
- if (function_exists('gzcompress') && $this->options['compression']) {
- // then implement ZLIB based compression on this content stream
- $res.= " /Filter /FlateDecode";
- $tmp = gzcompress($tmp, 6);
- }
- if ($this->encrypted) {
- $this->encryptInit($id);
- $tmp = $this->ARC4($tmp);
- }
- foreach($o['info'] as $k=>$v) {
- $res.= "\n/".$k.' '.$v;
- }
- $res.= "\n/Length ".strlen($tmp) ." >>\nstream\n".$tmp."\nendstream";
- }
- $res.= "\nendobj\n";
- return $res;
- break;
- }
- }
- /**
- * an image object, will be an XObject in the document, includes description and data
- */
- function o_image($id, $action, $options = '') {
- if ($action != 'new') {
- $o = & $this->objects[$id];
- }
- switch ($action) {
- case 'new':
- // make the new object
- $this->objects[$id] = array('t'=>'image', 'data'=>&$options['data'], 'info'=>array());
- $this->objects[$id]['info']['Type'] = '/XObject';
- $this->objects[$id]['info']['Subtype'] = '/Image';
- $this->objects[$id]['info']['Width'] = $options['iw'];
- $this->objects[$id]['info']['Height'] = $options['ih'];
- if (!isset($options['type']) || $options['type'] == 'jpg') {
- if (!isset($options['channels'])) {
- $options['channels'] = 3;
- }
- switch ($options['channels']) {
- case 1:
- $this->objects[$id]['info']['ColorSpace'] = '/DeviceGray';
- break;
- default:
- $this->objects[$id]['info']['ColorSpace'] = '/DeviceRGB';
- break;
- }
- $this->objects[$id]['info']['Filter'] = '/DCTDecode';
- $this->objects[$id]['info']['BitsPerComponent'] = 8;
- } else if ($options['type'] == 'png') {
-
- $this->objects[$id]['info']['Filter'] = '/FlateDecode';
- $this->objects[$id]['info']['DecodeParms'] = '<< /Predictor 15 /Colors '.$options['ncolor'].' /Columns '.$options['iw'].' /BitsPerComponent '.$options['bitsPerComponent'].'>>';
- if (strlen($options['pdata'])) {
- $tmp = ' [ /Indexed /DeviceRGB '.(strlen($options['pdata']) /3-1) .' ';
- $this->numObj++;
- $this->o_contents($this->numObj, 'new');
- $this->objects[$this->numObj]['c'] = $options['pdata'];
- $tmp.= $this->numObj.' 0 R';
- $tmp.= ' ]';
- $this->objects[$id]['info']['ColorSpace'] = $tmp;
- if (isset($options['transparency'])) {
- switch ($options['transparency']['type']) {
- case 'indexed':
- $tmp = ' [ '.$options['transparency']['data'].' '.$options['transparency']['data'].'] ';
- $this->objects[$id]['info']['Mask'] = $tmp;
- break;
- case 'color-key':
- $tmp = ' [ '.
- $options['transparency']['r'] . ' ' . $options['transparency']['r'] .
- $options['transparency']['g'] . ' ' . $options['transparency']['g'] .
- $options['transparency']['b'] . ' ' . $options['transparency']['b'] .
- ' ] ';
- $this->objects[$id]['info']['Mask'] = $tmp;
- pre_r($tmp);
- break;
-
- }
- }
- } else {
- if (isset($options['transparency'])) {
- switch ($options['transparency']['type']) {
- case 'indexed':
- $tmp = ' [ '.$options['transparency']['data'].' '.$options['transparency']['data'].'] ';
- $this->objects[$id]['info']['Mask'] = $tmp;
- break;
- case 'color-key':
- $tmp = ' [ '.
- $options['transparency']['r'] . ' ' . $options['transparency']['r'] . ' ' .
- $options['transparency']['g'] . ' ' . $options['transparency']['g'] . ' ' .
- $options['transparency']['b'] . ' ' . $options['transparency']['b'] .
- ' ] ';
- $this->objects[$id]['info']['Mask'] = $tmp;
- break;
-
- }
- }
- $this->objects[$id]['info']['ColorSpace'] = '/'.$options['color'];
- }
- $this->objects[$id]['info']['BitsPerComponent'] = $options['bitsPerComponent'];
- }
- // assign it a place in the named resource dictionary as an external object, according to
- // the label passed in with it.
- $this->o_pages($this->currentNode, 'xObject', array('label'=>$options['label'], 'objNum'=>$id));
- // also make sure that we have the right procset object for it.
- $this->o_procset($this->procsetObjectId, 'add', 'ImageC');
- break;
- case 'out':
- $tmp = &$o['data'];
- $res = "\n".$id." 0 obj\n<<";
- foreach($o['info'] as $k=>$v) {
- $res.= "\n/".$k.' '.$v;
- }
- if ($this->encrypted) {
- $this->encryptInit($id);
- $tmp = $this->ARC4($tmp);
- }
- $res.= "\n/Length ".strlen($tmp) ." >>\nstream\n".$tmp."\nendstream\nendobj\n";
- return $res;
- break;
- }
- }
- /**
- * graphics state object
- */
- function o_extGState($id, $action, $options = "") {
- static $valid_params = array("LW", "LC", "LC", "LJ", "ML",
- "D", "RI", "OP", "op", "OPM",
- "Font", "BG", "BG2", "UCR",
- "TR", "TR2", "HT", "FL",
- "SM", "SA", "BM", "SMask",
- "CA", "ca", "AIS", "TK");
- if ( $action != "new") {
- $o = & $this->objects[$id];
- }
- switch ($action) {
- case "new":
- $this->objects[$id] = array('t' => 'extGState', 'info' => $options);
- // Tell the pages about the new resource
- $this->numStates++;
- $this->o_pages($this->currentNode, 'extGState', array("objNum" => $id, "stateNum" => $this->numStates));
- break;
- case "out":
- $res =
- "\n" . $id . " 0 obj\n".
- "<< /Type /ExtGState\n";
- foreach ($o["info"] as $parameter => $value) {
- if ( !in_array($parameter, $valid_params))
- continue;
- $res.= "/$parameter $value\n";
- }
- $res.=
- ">>\n".
- "endobj";
- return $res;
- }
- }
- /**
- * encryption object.
- */
- function o_encryption($id, $action, $options = '') {
- if ($action != 'new') {
- $o = & $this->objects[$id];
- }
- switch ($action) {
- case 'new':
- // make the new object
- $this->objects[$id] = array('t'=>'encryption', 'info'=>$options);
- $this->arc4_objnum = $id;
- // figure out the additional paramaters required
- $pad = chr(0x28) .chr(0xBF) .chr(0x4E) .chr(0x5E) .chr(0x4E) .chr(0x75) .chr(0x8A) .chr(0x41) .chr(0x64) .chr(0x00) .chr(0x4E) .chr(0x56) .chr(0xFF) .chr(0xFA) .chr(0x01) .chr(0x08) .chr(0x2E) .chr(0x2E) .chr(0x00) .chr(0xB6) .chr(0xD0) .chr(0x68) .chr(0x3E) .chr(0x80) .chr(0x2F) .chr(0x0C) .chr(0xA9) .chr(0xFE) .chr(0x64) .chr(0x53) .chr(0x69) .chr(0x7A);
- $len = strlen($options['owner']);
- if ($len>32) {
- $owner = substr($options['owner'], 0, 32);
- } else if ($len<32) {
- $owner = $options['owner'].substr($pad, 0, 32-$len);
- } else {
- $owner = $options['owner'];
- }
- $len = strlen($options['user']);
- if ($len>32) {
- $user = substr($options['user'], 0, 32);
- } else if ($len<32) {
- $user = $options['user'].substr($pad, 0, 32-$len);
- } else {
- $user = $options['user'];
- }
- $tmp = $this->md5_16($owner);
- $okey = substr($tmp, 0, 5);
- $this->ARC4_init($okey);
- $ovalue = $this->ARC4($user);
- $this->objects[$id]['info']['O'] = $ovalue;
- // now make the u value, phew.
- $tmp = $this->md5_16($user.$ovalue.chr($options['p']) .chr(255) .chr(255) .chr(255) .$this->fileIdentifier);
- $ukey = substr($tmp, 0, 5);
- $this->ARC4_init($ukey);
- $this->encryptionKey = $ukey;
- $this->encrypted = 1;
- $uvalue = $this->ARC4($pad);
- $this->objects[$id]['info']['U'] = $uvalue;
- $this->encryptionKey = $ukey;
- // initialize the arc4 array
- break;
- case 'out':
- $res = "\n".$id." 0 obj\n<<";
- $res.= "\n/Filter /Standard";
- $res.= "\n/V 1";
- $res.= "\n/R 2";
- $res.= "\n/O (".$this->filterText($o['info']['O']) .')';
- $res.= "\n/U (".$this->filterText($o['info']['U']) .')';
- // and the p-value needs to be converted to account for the twos-complement approach
- $o['info']['p'] = (($o['info']['p']^255) +1) *-1;
- $res.= "\n/P ".($o['info']['p']);
- $res.= "\n>>\nendobj\n";
- return $res;
- break;
- }
- }
- /**
- * ARC4 functions
- * A series of function to implement ARC4 encoding in PHP
- */
- /**
- * calculate the 16 byte version of the 128 bit md5 digest of the string
- */
- function md5_16($string) {
- $tmp = md5($string);
- $out = '';
- for ($i = 0;$i <= 30;$i = $i+2) {
- $out.= chr(hexdec(substr($tmp, $i, 2)));
- }
- return $out;
- }
- /**
- * initialize the encryption for processing a particular object
- */
- function encryptInit($id) {
- $tmp = $this->encryptionKey;
- $hex = dechex($id);
- if (strlen($hex) <6) {
- $hex = substr('000000', 0, 6-strlen($hex)) .$hex;
- }
- $tmp.= chr(hexdec(substr($hex, 4, 2))) .chr(hexdec(substr($hex, 2, 2))) .chr(hexdec(substr($hex, 0, 2))) .chr(0) .chr(0);
- $key = $this->md5_16($tmp);
- $this->ARC4_init(substr($key, 0, 10));
- }
- /**
- * initialize the ARC4 encryption
- */
- function ARC4_init($key = '') {
- $this->arc4 = '';
- // setup the control array
- if (strlen($key) == 0) {
- return;
- }
- $k = '';
- while (strlen($k) <256) {
- $k.= $key;
- }
- $k = substr($k, 0, 256);
- for ($i = 0;$i<256;$i++) {
- $this->arc4.= chr($i);
- }
- $j = 0;
- for ($i = 0;$i<256;$i++) {
- $t = $this->arc4[$i];
- $j = ($j + ord($t) + ord($k[$i])) %256;
- $this->arc4[$i] = $this->arc4[$j];
- $this->arc4[$j] = $t;
- }
- }
- /**
- * ARC4 encrypt a text string
- */
- function ARC4($text) {
- $len = strlen($text);
- $a = 0;
- $b = 0;
- $c = $this->arc4;
- $out = '';
- for ($i = 0;$i<$len;$i++) {
- $a = ($a+1) %256;
- $t = $c[$a];
- $b = ($b+ord($t)) %256;
- $c[$a] = $c[$b];
- $c[$b] = $t;
- $k = ord($c[(ord($c[$a]) +ord($c[$b])) %256]);
- $out.= chr(ord($text[$i]) ^ $k);
- }
- return $out;
- }
- /**
- * functions which can be called to adjust or add to the document
- */
- /**
- * add a link in the document to an external URL
- */
- function addLink($url, $x0, $y0, $x1, $y1) {
- $this->numObj++;
- $info = array('type'=>'link', 'url'=>$url, 'rect'=>array($x0, $y0, $x1, $y1));
- $this->o_annotation($this->numObj, 'new', $info);
- }
- /**
- * add a link in the document to an internal destination (ie. within the document)
- */
- function addInternalLink($label, $x0, $y0, $x1, $y1) {
- $this->numObj++;
- $info = array('type'=>'ilink', 'label'=>$label, 'rect'=>array($x0, $y0, $x1, $y1));
- $this->o_annotation($this->numObj, 'new', $info);
- }
- /**
- * set the encryption of the document
- * can be used to turn it on and/or set the passwords which it will have.
- * also the functions that the user will have are set here, such as print, modify, add
- */
- function setEncryption($userPass = '', $ownerPass = '', $pc = array()) {
- $p = bindec(11000000);
- $options = array(
- 'print'=>4, 'modify'=>8, 'copy'=>16, 'add'=>32);
- foreach($pc as $k=>$v) {
- if ($v && isset($options[$k])) {
- $p+= $options[$k];
- } else if (isset($options[$v])) {
- $p+= $options[$v];
- }
- }
- // implement encryption on the document
- if ($this->arc4_objnum == 0) {
- // then the block does not exist already, add it.
- $this->numObj++;
- if (strlen($ownerPass) == 0) {
- $ownerPass = $userPass;
- }
- $this->o_encryption($this->numObj, 'new', array('user'=>$userPass, 'owner'=>$ownerPass, 'p'=>$p));
- }
- }
- /**
- * should be used for internal checks, not implemented as yet
- */
- function checkAllHere() {
- }
- /**
- * return the pdf stream as a string returned from the function
- */
- function output($debug = 0) {
- if ($debug) {
- // turn compression off
- $this->options['compression'] = 0;
- }
- if ($this->arc4_objnum) {
- $this->ARC4_init($this->encryptionKey);
- }
- $this->checkAllHere();
- $xref = array();
- $content = "%PDF-1.3\n%âãÏÓ\n";
- // $content="%PDF-1.3\n";
- $pos = strlen($content);
- foreach($this->objects as $k=>$v) {
- $tmp = 'o_'.$v['t'];
- $cont = $this->$tmp($k, 'out');
- $content.= $cont;
- $xref[] = $pos;
- $pos+= strlen($cont);
- }
- $content.= "\nxref\n0 ".(count($xref) +1) ."\n0000000000 65535 f \n";
- foreach($xref as $p) {
- $content.= str_pad($p, 10, "0", STR_PAD_LEFT) . " 00000 n \n";
- }
- $content.= "trailer\n<<\n/Size ".(count($xref) +1) ."\n/Root 1 0 R\n/Info ".$this->infoObject." 0 R\n";
- // if encryption has been applied to this document then add the marker for this dictionary
- if ($this->arc4_objnum > 0) {
- $content.= "/Encrypt ".$this->arc4_objnum." 0 R\n";
- }
- if (strlen($this->fileIdentifier)) {
- $content.= "/ID[<".$this->fileIdentifier."><".$this->fileIdentifier.">]\n";
- }
- $content.= ">>\nstartxref\n".$pos."\n%%EOF\n";
- return $content;
- }
- /**
- * intialize a new document
- * if this is called on an existing document results may be unpredictable, but the existing document would be lost at minimum
- * this function is called automatically by the constructor function
- *
- * @access private
- */
- function newDocument($pageSize = array(0, 0, 612, 792)) {
- $this->numObj = 0;
- $this->objects = array();
- $this->numObj++;
- $this->o_catalog($this->numObj, 'new');
- $this->numObj++;
- $this->o_outlines($this->numObj, 'new');
- $this->numObj++;
- $this->o_pages($this->numObj, 'new');
- $this->o_pages($this->numObj, 'mediaBox', $pageSize);
- $this->currentNode = 3;
- $this->numObj++;
- $this->o_procset($this->numObj, 'new');
- $this->numObj++;
- $this->o_info($this->numObj, 'new');
- $this->numObj++;
- $this->o_page($this->numObj, 'new');
- // need to store the first page id as there is no way to get it to the user during
- // startup
- $this->firstPageId = $this->currentContents;
- }
- /**
- * open the font file and return a php structure containing it.
- * first check if this one has been done before and saved in a form more suited to php
- * note that if a php serialized version does not exist it will try and make one, but will
- * require write access to the directory to do it... it is MUCH faster to have these serialized
- * files.
- *
- * @access private
- */
- function openFont($font) {
- // assume that $font contains both the path and perhaps the extension to the file, split them
- $pos = strrpos($font, '/');
- if ($pos === false) {
- $dir = './';
- $name = $font;
- } else {
- $dir = substr($font, 0, $pos+1);
- $name = substr($font, $pos+1);
- }
- if (substr($name, -4) == '.afm') {
- $name = substr($name, 0, strlen($name) -4);
- }
- $this->addMessage('openFont: '.$font.' - '.$name);
- if (file_exists($dir . 'php_' . $name . '.afm')) {
- $this->addMessage('openFont: php file exists ' . $dir . 'php_' . $name.'.afm');
- $tmp = file_get_contents($dir.'php_'.$name.'.afm');
- eval($tmp);
- if (!isset($this->fonts[$font]['_version_']) || $this->fonts[$font]['_version_']<1) {
- // if the font file is old, then clear it out and prepare for re-creation
- $this->addMessage('openFont: clear out, make way for new version.');
- unset($this->fonts[$font]);
- }
- }
- if (!isset($this->fonts[$font]) && file_exists($dir.$name.'.afm')) {
- // then rebuild the php_<font>.afm file from the <font>.afm file
- $this->addMessage('openFont: build php file from '.$dir.$name.'.afm');
- $data = array();
- $file = file($dir.$name.'.afm');
- foreach ($file as $rowA) {
- $row = trim($rowA);
- $pos = strpos($row, ' ');
- if ($pos) {
- // then there must be some keyword
- $key = substr($row, 0, $pos);
- switch ($key) {
- case 'FontName':
- case 'FullName':
- case 'FamilyName':
- case 'Weight':
- case 'ItalicAngle':
- case 'IsFixedPitch':
- case 'CharacterSet':
- case 'UnderlinePosition':
- case 'UnderlineThickness':
- case 'Version':
- case 'EncodingScheme':
- case 'CapHeight':
- case 'XHeight':
- case 'Ascender':
- case 'Descender':
- case 'StdHW':
- case 'StdVW':
- case 'StartCharMetrics':
- $data[$key] = trim(substr($row, $pos));
- break;
- case 'FontBBox':
- $data[$key] = explode(' ', trim(substr($row, $pos)));
- break;
- case 'C':
- //C 39 ; WX 222 ; N quoteright ; B 53 463 157 718 ;
- $bits = explode(';', trim($row));
- $dtmp = array();
- foreach($bits as $bit) {
- $bits2 = explode(' ', trim($bit));
- if (strlen($bits2[0])) {
- if (count($bits2) >2) {
- $dtmp[$bits2[0]] = array();
- for ($i = 1;$i<count($bits2);$i++) {
- $dtmp[$bits2[0]][] = $bits2[$i];
- }
- } else if (count($bits2) == 2) {
- $dtmp[$bits2[0]] = $bits2[1];
- }
- }
- }
- if ($dtmp['C'] >= 0) {
- $data['C'][$dtmp['C']] = $dtmp;
- $data['C'][$dtmp['N']] = $dtmp;
- } else {
- $data['C'][$dtmp['N']] = $dtmp;
- }
- break;
- case 'KPX':
- //KPX Adieresis yacute -40
- $bits = explode(' ', trim($row));
- $data['KPX'][$bits[1]][$bits[2]] = $bits[3];
- break;
- }
- }
- }
- $data['_version_'] = 1;
- $this->fonts[$font] = $data;
- file_put_contents($dir . 'php_' . $name . '.afm', '$this->fonts[$font]=' . var_export($data, true) . ';');
- } else if (!isset($this->fonts[$font])) {
- $this->addMessage('openFont: no font file found');
- // echo 'Font not Found '.$font;
- }
- }
- /**
- * if the font is not loaded then load it and make the required object
- * else just make it the current font
- * the encoding array can contain 'encoding'=> 'none','WinAnsiEncoding','MacRomanEncoding' or 'MacExpertEncoding'
- * note that encoding='none' will need to be used for symbolic fonts
- * and 'differences' => an array of mappings between numbers 0->255 and character names.
- *
- */
- function selectFont($fontName, $encoding = '', $set = 1) {
- if (!isset($this->fonts[$fontName])) {
- // load the file
- $this->openFont($fontName);
- if (isset($this->fonts[$fontName])) {
- $this->numObj++;
- $this->numFonts++;
- //$this->numFonts = md5($fontName);
- $pos = strrpos($fontName, '/');
- // $dir = substr($fontName,0,$pos+1);
- $name = substr($fontName, $pos+1);
- if (substr($name, -4) == '.afm') {
- $name = substr($name, 0, strlen($name) -4);
- }
- $options = array('name' => $name);
- if (is_array($encoding)) {
- // then encoding and differences might be set
- if (isset($encoding['encoding'])) {
- $options['encoding'] = $encoding['encoding'];
- }
- if (isset($encoding['differences'])) {
- $options['differences'] = $encoding['differences'];
- }
- } else if (strlen($encoding)) {
- // then perhaps only the encoding has been set
- $options['encoding'] = $encoding;
- }
- $fontObj = $this->numObj;
- $this->o_font($this->numObj, 'new', $options);
- $this->fonts[$fontName]['fontNum'] = $this->numFonts;
- // if this is a '.afm' font, and there is a '.pfa' file to go with it ( as there
- // should be for all non-basic fonts), then load it into an object and put the
- // references into the font object
- $basefile = substr($fontName, 0, strlen($fontName) -4);
- if (file_exists($basefile.'.pfb')) {
- $fbtype = 'pfb';
- } else if (file_exists($basefile.'.ttf')) {
- $fbtype = 'ttf';
- } else {
- $fbtype = '';
- }
- $fbfile = $basefile.'.'.$fbtype;
- // $pfbfile = substr($fontName,0,strlen($fontName)-4).'.pfb';
- // $ttffile = substr($fontName,0,strlen($fontName)-4).'.ttf';
- $this->addMessage('selectFont: checking for - '.$fbfile);
- if (substr($fontName, -4) == '.afm' && strlen($fbtype)) {
- $adobeFontName = $this->fonts[$fontName]['FontName'];
- // $fontObj = $this->numObj;
- $this->addMessage('selectFont: adding font file - '.$fbfile.' - '.$adobeFontName);
- // find the array of fond widths, and put that into an object.
- $firstChar = -1;
- $lastChar = 0;
- $widths = array();
- foreach ($this->fonts[$fontName]['C'] as $num => $d) {
- if (intval($num) >0 || $num == '0') {
- if ($lastChar>0 && $num>$lastChar+1) {
- for ($i = $lastChar+1;$i<$num;$i++) {
- $widths[] = 0;
- }
- }
- $widths[] = $d['WX'];
- if ($firstChar == -1) {
- $firstChar = $num;
- }
- $lastChar = $num;
- }
- }
- // also need to adjust the widths for the differences array
- if (isset($options['differences'])) {
- foreach($options['differences'] as $charNum => $charName) {
- if ($charNum > $lastChar) {
- for ($i = $lastChar + 1; $i <= $charNum; $i++) {
- $widths[] = 0;
- }
- $lastChar = $charNum;
- }
- if (isset($this->fonts[$fontName]['C'][$charName])) {
- $widths[$charNum-$firstChar] = $this->fonts[$fontName]['C'][$charName]['WX'];
- }
- }
- }
- $this->addMessage('selectFont: FirstChar = '.$firstChar);
- $this->addMessage('selectFont: LastChar = '.$lastChar);
- $this->numObj++;
- $this->o_contents($this->numObj, 'new', 'raw');
- $this->objects[$this->numObj]['c'].= '[';
- foreach($widths as $width) {
- $this->objects[$this->numObj]['c'].= ' '.$width;
- }
- $this->objects[$this->numObj]['c'].= ' ]';
- $widthid = $this->numObj;
- // load the pfb file, and put that into an object too.
- // note that pdf supports only binary format type 1 font files, though there is a
- // simple utility to convert them from pfa to pfb.
- $tmp = get_magic_quotes_runtime();
- set_magic_quotes_runtime(0);
- $data = file_get_contents($fbfile);
- set_magic_quotes_runtime($tmp);
- // create the font descriptor
- $this->numObj++;
- $fontDescriptorId = $this->numObj;
- $this->numObj++;
- $pfbid = $this->numObj;
- // determine flags (more than a little flakey, hopefully will not matter much)
- $flags = 0;
- if ($this->fonts[$fontName]['ItalicAngle'] != 0) {
- $flags+= pow(2, 6);
- }
- if ($this->fonts[$fontName]['IsFixedPitch'] == 'true') {
- $flags+= 1;
- }
- $flags+= pow(2, 5);
- // assume non-sybolic
- $list = array('Ascent' => 'Ascender', 'CapHeight' => 'CapHeight', 'Descent' => 'Descender', 'FontBBox' => 'FontBBox', 'ItalicAngle' => 'ItalicAngle');
- $fdopt = array(
- 'Flags' => $flags, 'FontName' => $adobeFontName, 'StemV' => 100 // don't know what the value for this should be!
- );
- foreach($list as $k => $v) {
- if (isset($this->fonts[$fontName][$v])) {
- $fdopt[$k] = $this->fonts[$fontName][$v];
- }
- }
- if ($fbtype == 'pfb') {
- $fdopt['FontFile'] = $pfbid;
- } else if ($fbtype == 'ttf') {
- $fdopt['FontFile2'] = $pfbid;
- }
- $this->o_fontDescriptor($fontDescriptorId, 'new', $fdopt);
- // embed the font program
- $this->o_contents($this->numObj, 'new');
- $this->objects[$pfbid]['c'].= $data;
- // determine the cruicial lengths within this file
- if ($fbtype == 'pfb') {
- $l1 = strpos($data, 'eexec') +6;
- $l2 = strpos($data, '00000000') -$l1;
- $l3 = strlen($data) -$l2-$l1;
- $this->o_contents($this->numObj, 'add', array('Length1' => $l1, 'Length2' => $l2, 'Length3' => $l3));
- } else if ($fbtype == 'ttf') {
- $l1 = strlen($data);
- $this->o_contents($this->numObj, 'add', array('Length1' => $l1));
- }
- // tell the font object about all this new stuff
- $tmp = array('BaseFont' => $adobeFontName, 'Widths' => $widthid, 'FirstChar' => $firstChar, 'LastChar' => $lastChar, 'FontDescriptor' => $fontDescriptorId);
- if ($fbtype == 'ttf') {
- $tmp['SubType'] = 'TrueType';
- }
- $this->addMessage('adding extra info to font.('.$fontObj.')');
- foreach($tmp as $fk => $fv) {
- $this->addMessage($fk." : ".$fv);
- }
- $this->o_font($fontObj, 'add', $tmp);
- } else {
- $this->addMessage('selectFont: pfb or ttf file not found, ok if this is one of the 14 standard fonts');
- }
- // also set the differences here, note that this means that these will take effect only the
- //first time that a font is selected, else they are ignored
- if (isset($options['differences'])) {
- $this->fonts[$fontName]['differences'] = $options['differences'];
- }
- }
- }
- if ($set && isset($this->fonts[$fontName])) {
- // so if for some reason the font was not set in the last one then it will not be selected
- $this->currentBaseFont = $fontName;
- // the next lines mean that if a new font is selected, then the current text state will be
- // applied to it as well.
- $this->currentFont = $this->currentBaseFont;
- $this->currentFontNum = $this->fonts[$this->currentFont]['fontNum'];
- //$this->setCurrentFont();
- }
- return $this->currentFontNum;
- //return $this->numObj;
- }
- /**
- * sets up the current font, based on the font families, and the current text state
- * note that this system is quite flexible, a bold-italic font can be completely different to a
- * italic-bold font, and even bold-bold will have to be defined within the family to have meaning
- * This function is to be called whenever the currentTextState is changed, it will update
- * the currentFont setting to whatever the appropriatte family one is.
- * If the user calls selectFont themselves then that will reset the currentBaseFont, and the currentFont
- * This function will change the currentFont to whatever it should be, but will not change the
- * currentBaseFont.
- *
- * @access private
- */
- function setCurrentFont() {
- // if (strlen($this->currentBaseFont) == 0){
- // // then assume an initial font
- // $this->selectFont('./fonts/Helvetica.afm');
- // }
- // $cf = substr($this->currentBaseFont,strrpos($this->currentBaseFont,'/')+1);
- // if (strlen($this->currentTextState)
- // && isset($this->fontFamilies[$cf])
- // && isset($this->fontFamilies[$cf][$this->currentTextState])){
- // // then we are in some state or another
- // // and this font has a family, and the current setting exists within it
- // // select the font, then return it
- // $nf = substr($this->currentBaseFont,0,strrpos($this->currentBaseFont,'/')+1).$this->fontFamilies[$cf][$this->currentTextState];
- // $this->selectFont($nf,'',0);
- // $this->currentFont = $nf;
- // $this->currentFontNum = $this->fonts[$nf]['fontNum'];
- // } else {
- // // the this font must not have the right family member for the current state
- // // simply assume the base font
- $this->currentFont = $this->currentBaseFont;
- $this->currentFontNum = $this->fonts[$this->currentFont]['fontNum'];
- // }
- }
- /**
- * function for the user to find out what the ID is of the first page that was created during
- * startup - useful if they wish to add something to it later.
- */
- function getFirstPageId() {
- return $this->firstPageId;
- }
- /**
- * add content to the currently active object
- *
- * @access private
- */
- function addContent($content) {
- $this->objects[$this->currentContents]['c'].= $content;
- }
- /**
- * sets the colour for fill operations
- */
- function setColor($r, $g, $b, $force = 0) {
- if ($r >= 0 && ($force || $r != $this->currentColour['r'] || $g != $this->currentColour['g'] || $b != $this->currentColour['b'])) {
- $this->objects[$this->currentContents]['c'].= "\n".sprintf('%.3f', $r) .' '.sprintf('%.3f', $g) .' '.sprintf('%.3f', $b) .' rg';
- $this->currentColour = array('r' => $r, 'g' => $g, 'b' => $b);
- }
- }
- /**
- * sets the colour for stroke operations
- */
- function setStrokeColor($r, $g, $b, $force = 0) {
- if ($r >= 0 && ($force || $r != $this->currentStrokeColour['r'] || $g != $this->currentStrokeColour['g'] || $b != $this->currentStrokeColour['b'])) {
- $this->objects[$this->currentContents]['c'].= "\n".sprintf('%.3f', $r) .' '.sprintf('%.3f', $g) .' '.sprintf('%.3f', $b) .' RG';
- $this->currentStrokeColour = array('r' => $r, 'g' => $g, 'b' => $b);
- }
- }
- /**
- * Set the graphics state for compositions
- */
- function setGraphicsState($parameters) {
- // Create a new graphics state object
- // FIXME: should actually keep track of states that have already been created...
- $this->numObj++;
- $this->o_extGState($this->numObj, 'new', $parameters);
- $this->objects[ $this->currentContents ]['c'].= "\n/GS" . $this->numStates . " gs";
- }
- /**
- * Set current blend mode & opacity for lines.
- *
- * Valid blend modes are:
- *
- * Normal, Multiply, Screen, Overlay, Darken, Lighten,
- * ColorDogde, ColorBurn, HardLight, SoftLight, Difference,
- * Exclusion
- *
- * @param string $mode the blend mode to use
- * @param float $opacity 0.0 fully transparent, 1.0 fully opaque
- */
- function setLineTransparency($mode, $opacity) {
- static $blend_modes = array("Normal", "Multiply", "Screen",
- "Overlay", "Darken", "Lighten",
- "ColorDogde", "ColorBurn", "HardLight",
- "SoftLight", "Difference", "Exclusion");
- if ( !in_array($mode, $blend_modes) )
- $mode = "Normal";
-
- // Only create a new graphics state if required
- if ( $mode == $this->currentLineTransparency["mode"] &&
- $opacity == $this->currentLineTransparency["opacity"] )
- return;
- $options = array("BM" => "/$mode",
- "CA" => (float)$opacity);
- $this->setGraphicsState($options);
- }
-
- /**
- * Set current blend mode & opacity for filled objects.
- *
- * Valid blend modes are:
- *
- * Normal, Multiply, Screen, Overlay, Darken, Lighten,
- * ColorDogde, ColorBurn, HardLight, SoftLight, Difference,
- * Exclusion
- *
- * @param string $mode the blend mode to use
- * @param float $opacity 0.0 fully transparent, 1.0 fully opaque
- */
- function setFillTransparency($mode, $opacity) {
- static $blend_modes = array("Normal", "Multiply", "Screen",
- "Overlay", "Darken", "Lighten",
- "ColorDogde", "ColorBurn", "HardLight",
- "SoftLight", "Difference", "Exclusion");
- if ( !in_array($mode, $blend_modes) )
- $mode = "Normal";
- if ( $mode == $this->currentFillTransparency["mode"] &&
- $opacity == $this->currentFillTransparency["opacity"] )
- return;
- $options = array("BM" => "/$mode",
- "ca" => (float)$opacity);
-
- $this->setGraphicsState($options);
- }
- /**
- * draw a line from one set of coordinates to another
- */
- function line($x1, $y1, $x2, $y2) {
- $this->objects[$this->currentContents]['c'] .=
- "\n".sprintf('%.3f', $x1) .' '.sprintf('%.3f', $y1) .' m '.sprintf('%.3f', $x2) .' '.sprintf('%.3f', $y2) .' l S';
- }
- /**
- * draw a bezier curve based on 4 control points
- */
- function curve($x0, $y0, $x1, $y1, $x2, $y2, $x3, $y3) {
- // in the current line style, draw a bezier curve from (x0,y0) to (x3,y3) using the other two points
- // as the control points for the curve.
- $this->objects[$this->currentContents]['c'] .=
- "\n".sprintf('%.3f', $x0) .' '.sprintf('%.3f', $y0) .' m '.sprintf('%.3f', $x1) .' '.sprintf('%.3f', $y1);
- $this->objects[$this->currentContents]['c'] .=
- ' '.sprintf('%.3f', $x2) .' '.sprintf('%.3f', $y2) .' '.sprintf('%.3f', $x3) .' '.sprintf('%.3f', $y3) .' c S';
- }
- /**
- * draw a part of an ellipse
- */
- function partEllipse($x0, $y0, $astart, $afinish, $r1, $r2 = 0, $angle = 0, $nSeg = 8) {
- $this->ellipse($x0, $y0, $r1, $r2, $angle, $nSeg, $astart, $afinish, 0);
- }
- /**
- * draw a filled ellipse
- */
- function filledEllipse($x0, $y0, $r1, $r2 = 0, $angle = 0, $nSeg = 8, $astart = 0, $afinish = 360) {
- return $this->ellipse($x0, $y0, $r1, $r2 = 0, $angle, $nSeg, $astart, $afinish, 1, 1);
- }
- /**
- * draw an ellipse
- * note that the part and filled ellipse are just special cases of this function
- *
- * draws an ellipse in the current line style
- * centered at $x0,$y0, radii $r1,$r2
- * if $r2 is not set, then a circle is drawn
- * nSeg is not allowed to be less than 2, as this will simply draw a line (and will even draw a
- * pretty crappy shape at 2, as we are approximating with bezier curves.
- */
- function ellipse($x0, $y0, $r1, $r2 = 0, $angle = 0, $nSeg = 8, $astart = 0, $afinish = 360, $close = 1, $fill = 0) {
- if ($r1 == 0) {
- return;
- }
- if ($r2 == 0) {
- $r2 = $r1;
- }
- if ($nSeg < 2) {
- $nSeg = 2;
- }
- $astart = deg2rad((float)$astart);
- $afinish = deg2rad((float)$afinish);
- $totalAngle = $afinish-$astart;
- $dt = $totalAngle/$nSeg;
- $dtm = $dt/3;
- if ($angle != 0) {
- $a = -1*deg2rad((float)$angle);
- $tmp = "\n q ";
- $tmp .= sprintf('%.3f', cos($a)) .' '.sprintf('%.3f', (-1.0*sin($a))) .' '.sprintf('%.3f', sin($a)) .' '.sprintf('%.3f', cos($a)) .' ';
- $tmp .= sprintf('%.3f', $x0) .' '.sprintf('%.3f', $y0) .' cm';
- $this->objects[$this->currentContents]['c'].= $tmp;
- $x0 = 0;
- $y0 = 0;
- }
- $t1 = $astart;
- $a0 = $x0 + $r1*cos($t1);
- $b0 = $y0 + $r2*sin($t1);
- $c0 = -$r1 * sin($t1);
- $d0 = $r2 * cos($t1);
- $this->objects[$this->currentContents]['c'] .= "\n".sprintf('%.3f', $a0) .' '.sprintf('%.3f', $b0) .' m ';
- for ($i = 1; $i <= $nSeg; $i++) {
- // draw this bit of the total curve
- $t1 = $i * $dt + $astart;
- $a1 = $x0 + $r1 * cos($t1);
- $b1 = $y0 + $r2 * sin($t1);
- $c1 = -$r1 * sin($t1);
- $d1 = $r2 * cos($t1);
- $this->objects[$this->currentContents]['c']
- .= "\n".sprintf('%.3f', ($a0+$c0*$dtm)) .' '.sprintf('%.3f', ($b0 + $d0 * $dtm));
- $this->objects[$this->currentContents]['c'] .=
- ' '.sprintf('%.3f', ($a1-$c1*$dtm)) .' '.sprintf('%.3f', ($b1-$d1*$dtm)) .' '.sprintf('%.3f', $a1) .' '.sprintf('%.3f', $b1) .' c';
- $a0 = $a1;
- $b0 = $b1;
- $c0 = $c1;
- $d0 = $d1;
- }
- if ($fill) {
- $this->objects[$this->currentContents]['c'].= ' f';
- } else if ($close) {
- $this->objects[$this->currentContents]['c'].= ' s';
- // small 's' signifies closing the path as well
- } else {
- $this->objects[$this->currentContents]['c'].= ' S';
- }
- if ($angle != 0) {
- $this->objects[$this->currentContents]['c'].= ' Q';
- }
- }
- /**
- * this sets the line drawing style.
- * width, is the thickness of the line in user units
- * cap is the type of cap to put on the line, values can be 'butt','round','square'
- * where the diffference between 'square' and 'butt' is that 'square' projects a flat end past the
- * end of the line.
- * join can be 'miter', 'round', 'bevel'
- * dash is an array which sets the dash pattern, is a series of length values, which are the lengths of the
- * on and off dashes.
- * (2) represents 2 on, 2 off, 2 on , 2 off ...
- * (2,1) is 2 on, 1 off, 2 on, 1 off.. etc
- * phase is a modifier on the dash pattern which is used to shift the point at which the pattern starts.
- */
- function setLineStyle($width = 1, $cap = '', $join = '', $dash = '', $phase = 0) {
- // this is quite inefficient in that it sets all the parameters whenever 1 is changed, but will fix another day
- $string = '';
- if ($width>0) {
- $string.= $width.' w';
- }
- $ca = array('butt' => 0, 'round' => 1, 'square' => 2);
- if (isset($ca[$cap])) {
- $string.= ' '.$ca[$cap].' J';
- }
- $ja = array('miter' => 0, 'round' => 1, 'bevel' => 2);
- if (isset($ja[$join])) {
- $string.= ' '.$ja[$join].' j';
- }
- if (is_array($dash)) {
- $string.= ' [';
- foreach ($dash as $len) {
- $string.= ' '.$len;
- }
- $string.= ' ] '.$phase.' d';
- }
- $this->currentLineStyle = $string;
- $this->objects[$this->currentContents]['c'].= "\n".$string;
- }
- /**
- * draw a polygon, the syntax for this is similar to the GD polygon command
- */
- function polygon($p, $np, $f = 0) {
- $this->objects[$this->currentContents]['c'].= "\n";
- $this->objects[$this->currentContents]['c'].= sprintf('%.3f', $p[0]) .' '.sprintf('%.3f', $p[1]) .' m ';
- for ($i = 2; $i < $np * 2; $i = $i + 2) {
- $this->objects[$this->currentContents]['c'].= sprintf('%.3f', $p[$i]) .' '.sprintf('%.3f', $p[$i+1]) .' l ';
- }
- if ($f == 1) {
- $this->objects[$this->currentContents]['c'].= ' f';
- } else {
- $this->objects[$this->currentContents]['c'].= ' S';
- }
- }
- /**
- * a filled rectangle, note that it is the width and height of the rectangle which are the secondary paramaters, not
- * the coordinates of the upper-right corner
- */
- function filledRectangle($x1, $y1, $width, $height) {
- $this->objects[$this->currentContents]['c'].= "\n".sprintf('%.3f', $x1) .' '.sprintf('%.3f', $y1) .' '.sprintf('%.3f', $width) .' '.sprintf('%.3f', $height) .' re f';
- }
- /**
- * draw a rectangle, note that it is the width and height of the rectangle which are the secondary paramaters, not
- * the coordinates of the upper-right corner
- */
- function rectangle($x1, $y1, $width, $height) {
- $this->objects[$this->currentContents]['c'].= "\n".sprintf('%.3f', $x1) .' '.sprintf('%.3f', $y1) .' '.sprintf('%.3f', $width) .' '.sprintf('%.3f', $height) .' re S';
- }
- /**
- * add a new page to the document
- * this also makes the new page the current active object
- */
- function newPage($insert = 0, $id = 0, $pos = 'after') {
- // if there is a state saved, then go up the stack closing them
- // then on the new page, re-open them with the right setings
- if ($this->nStateStack) {
- for ($i = $this->nStateStack;$i >= 1;$i--) {
- $this->restoreState($i);
- }
- }
- $this->numObj++;
- if ($insert) {
- // the id from the ezPdf class is the od of the contents of the page, not the page object itself
- // query that object to find the parent
- $rid = $this->objects[$id]['onPage'];
- $opt = array('rid' => $rid, 'pos' => $pos);
- $this->o_page($this->numObj, 'new', $opt);
- } else {
- $this->o_page($this->numObj, 'new');
- }
- // if there is a stack saved, then put that onto the page
- if ($this->nStateStack) {
- for ($i = 1;$i <= $this->nStateStack;$i++) {
- $this->saveState($i);
- }
- }
- // and if there has been a stroke or fill colour set, then transfer them
- if ($this->currentColour['r'] >= 0) {
- $this->setColor($this->currentColour['r'], $this->currentColour['g'], $this->currentColour['b'], 1);
- }
- if ($this->currentStrokeColour['r'] >= 0) {
- $this->setStrokeColor($this->currentStrokeColour['r'], $this->currentStrokeColour['g'], $this->currentStrokeColour['b'], 1);
- }
- // if there is a line style set, then put this in too
- if (strlen($this->currentLineStyle)) {
- $this->objects[$this->currentContents]['c'].= "\n".$this->currentLineStyle;
- }
- // the call to the o_page object set currentContents to the present page, so this can be returned as the page id
- return $this->currentContents;
- }
- /**
- * output the pdf code, streaming it to the browser
- * the relevant headers are set so that hopefully the browser will recognise it
- */
- function stream($options = '') {
- // setting the options allows the adjustment of the headers
- // values at the moment are:
- // 'Content-Disposition' => 'filename' - sets the filename, though not too sure how well this will
- // work as in my trial the browser seems to use the filename of the php file with .pdf on the end
- // 'Accept-Ranges' => 1 or 0 - if this is not set to 1, then this header is not included, off by default
- // this header seems to have caused some problems despite tha fact that it is supposed to solve
- // them, so I am leaving it off by default.
- // 'compress' = > 1 or 0 - apply content stream compression, this is on (1) by default
- // 'Attachment' => 1 or 0 - if 1, force the browser to open a download dialog
- if (!is_array($options)) {
- $options = array();
- }
- if ( headers_sent())
- die("Unable to stream pdf: headers already sent");
- if ( isset($options['compress']) && $options['compress'] == 0) {
- $tmp = ltrim($this->output(1));
- } else {
- $tmp = ltrim($this->output());
- }
- header("Cache-Control: private");
- header("Content-type: application/pdf");
- //header("Content-Length: " . strlen($tmp));
- $fileName = (isset($options['Content-Disposition']) ? $options['Content-Disposition'] : 'file.pdf');
- if ( !isset($options["Attachment"]))
- $options["Attachment"] = true;
- $attachment = $options["Attachment"] ? "attachment" : "inline";
- header("Content-Disposition: $attachment; filename=\"$fileName\"");
- if (isset($options['Accept-Ranges']) && $options['Accept-Ranges'] == 1) {
- header("Accept-Ranges: " . strlen($tmp));
- }
- echo $tmp;
- flush();
- }
- /**
- * return the height in units of the current font in the given size
- */
- function getFontHeight($size) {
- if (!$this->numFonts) {
- $this->selectFont('./fonts/Helvetica');
- }
- // for the current font, and the given size, what is the height of the font in user units
- $h = $this->fonts[$this->currentFont]['FontBBox'][3]-$this->fonts[$this->currentFont]['FontBBox'][1];
- return $size*$h/1000;
- }
- /**
- * return the font decender, this will normally return a negative number
- * if you add this number to the baseline, you get the level of the bottom of the font
- * it is in the pdf user units
- */
- function getFontDecender($size) {
- // note that this will most likely return a negative value
- if (!$this->numFonts) {
- $this->selectFont('./fonts/Helvetica');
- }
- $h = $this->fonts[$this->currentFont]['FontBBox'][1];
- return $size*$h/1000;
- }
- /**
- * filter the text, this is applied to all text just before being inserted into the pdf document
- * it escapes the various things that need to be escaped, and so on
- *
- * @access private
- */
- function filterText($text) {
- $search = array("\\", "(", ")", "<", ">", "'", """, "&");
- $replace = array("\\\\", "\(", "\)", "<", ">", "\'", '"', "&");
- $text = str_replace($search, $replace, $text);
- return $text;
- }
- /**
- * given a start position and information about how text is to be laid out, calculate where
- * on the page the text will end
- *
- * @access private
- */
- function PRVTgetTextPosition($x, $y, $angle, $size, $wa, $text) {
- // given this information return an array containing x and y for the end position as elements 0 and 1
- $w = $this->getTextWidth($size, $text);
- // need to adjust for the number of spaces in this text
- $words = explode(' ', $text);
- $nspaces = count($words) -1;
- $w+= $wa*$nspaces;
- $a = deg2rad((float)$angle);
- return array(cos($a) *$w+$x, -sin($a) *$w+$y);
- }
- /**
- * wrapper function for PRVTcheckTextDirective1
- *
- * @access private
- */
- function PRVTcheckTextDirective(&$text, $i, &$f) {
- return 0;
- $x = 0;
- $y = 0;
- return $this->PRVTcheckTextDirective1($text, $i, $f, 0, $x, $y);
- }
- /**
- * checks if the text stream contains a control directive
- * if so then makes some changes and returns the number of characters involved in the directive
- * this has been re-worked to include everything neccesary to fins the current writing point, so that
- * the location can be sent to the callback function if required
- * if the directive does not require a font change, then $f should be set to 0
- *
- * @access private
- */
- function PRVTcheckTextDirective1(&$text, $i, &$f, $final, &$x, &$y, $size = 0, $angle = 0, $wordSpaceAdjust = 0) {
- return 0;
- $directive = 0;
- $j = $i;
- if ($text[$j] == '<') {
- $j++;
- switch ($text[$j]) {
- case '/':
- $j++;
- if (strlen($text) <= $j) {
- return $directive;
- }
- switch ($text[$j]) {
- case 'b':
- case 'i':
- $j++;
- if ($text[$j] == '>') {
- $p = strrpos($this->currentTextState, $text[$j-1]);
- if ($p !== false) {
- // then there is one to remove
- $this->currentTextState = substr($this->currentTextState, 0, $p) .substr($this->currentTextState, $p+1);
- }
- $directive = $j-$i+1;
- }
- break;
- case 'c':
- // this this might be a callback function
- $j++;
- $k = strpos($text, '>', $j);
- if ($k !== false && $text[$j] == ':') {
- // then this will be treated as a callback directive
- $directive = $k-$i+1;
- $f = 0;
- // split the remainder on colons to get the function name and the paramater
- $tmp = substr($text, $j+1, $k-$j-1);
- $b1 = strpos($tmp, ':');
- if ($b1 !== false) {
- $func = substr($tmp, 0, $b1);
- $parm = substr($tmp, $b1+1);
- } else {
- $func = $tmp;
- $parm = '';
- }
- if (!isset($func) || !strlen(trim($func))) {
- $directive = 0;
- } else {
- // only call the function if this is the final call
- if ($final) {
- // need to assess the text position, calculate the text width to this point
- // can use getTextWidth to find the text width I think
- $tmp = $this->PRVTgetTextPosition($x, $y, $angle, $size, $wordSpaceAdjust, substr($text, 0, $i));
- $info = array('x' => $tmp[0], 'y' => $tmp[1], 'angle' => $angle, 'status' => 'end', 'p' => $parm, 'nCallback' => $this->nCallback);
- $x = $tmp[0];
- $y = $tmp[1];
- $ret = $this->$func($info);
- if (is_array($ret)) {
- // then the return from the callback function could set the position, to start with, later will do font colour, and font
- foreach($ret as $rk => $rv) {
- switch ($rk) {
- case 'x':
- case 'y':
- $$rk = $rv;
- break;
- }
- }
- }
- // also remove from to the stack
- // for simplicity, just take from the end, fix this another day
- $this->nCallback--;
- if ($this->nCallback<0) {
- $this->nCallBack = 0;
- }
- }
- }
- }
- break;
- }
- break;
- case 'b':
- case 'i':
- $j++;
- if ($text[$j] == '>') {
- $this->currentTextState.= $text[$j-1];
- $directive = $j-$i+1;
- }
- break;
- case 'C':
- $noClose = 1;
- case 'c':
- // this this might be a callback function
- $j++;
- $k = strpos($text, '>', $j);
- if ($k !== false && $text[$j] == ':') {
- // then this will be treated as a callback directive
- $directive = $k-$i+1;
- $f = 0;
- // split the remainder on colons to get the function name and the paramater
- // $bits = explode(':',substr($text,$j+1,$k-$j-1));
- $tmp = substr($text, $j+1, $k-$j-1);
- $b1 = strpos($tmp, ':');
- if ($b1 !== false) {
- $func = substr($tmp, 0, $b1);
- $parm = substr($tmp, $b1+1);
- } else {
- $func = $tmp;
- $parm = '';
- }
- if (!isset($func) || !strlen(trim($func))) {
- $directive = 0;
- } else {
- // only call the function if this is the final call, ie, the one actually doing printing, not measurement
- if ($final) {
- // need to assess the text position, calculate the text width to this point
- // can use getTextWidth to find the text width I think
- // also add the text height and decender
- $tmp = $this->PRVTgetTextPosition($x, $y, $angle, $size, $wordSpaceAdjust, substr($text, 0, $i));
- $info = array('x' => $tmp[0], 'y' => $tmp[1], 'angle' => $angle, 'status' => 'start', 'p' => $parm, 'f' => $func, 'height' => $this->getFontHeight($size), 'decender' => $this->getFontDecender($size));
- $x = $tmp[0];
- $y = $tmp[1];
- if (!isset($noClose) || !$noClose) {
- // only add to the stack if this is a small 'c', therefore is a start-stop pair
- $this->nCallback++;
- $info['nCallback'] = $this->nCallback;
- $this->callback[$this->nCallback] = $info;
- }
- $ret = $this->$func($info);
- if (is_array($ret)) {
- // then the return from the callback function could set the position, to start with, later will do font colour, and font
- foreach($ret as $rk => $rv) {
- switch ($rk) {
- case 'x':
- case 'y':
- $$rk = $rv;
- break;
- }
- }
- }
- }
- }
- }
- break;
- }
- }
- return $directive;
- }
- /**
- * add text to the document, at a specified location, size and angle on the page
- */
- function addText($x, $y, $size, $text, $angle = 0, $wordSpaceAdjust = 0) {
- if (!$this->numFonts) {
- $this->selectFont('./fonts/Helvetica');
- }
- // if there are any open callbacks, then they should be called, to show the start of the line
- if ($this->nCallback>0) {
- for ($i = $this->nCallback;$i>0;$i--) {
- // call each function
- $info = array('x' => $x,
- 'y' => $y,
- 'angle' => $angle,
- 'status' => 'sol',
- 'p' => $this->callback[$i]['p'],
- 'nCallback' => $this->callback[$i]['nCallback'],
- 'height' => $this->callback[$i]['height'],
- 'decender' => $this->callback[$i]['decender']);
- $func = $this->callback[$i]['f'];
- $this->$func($info);
- }
- }
- if ($angle == 0) {
- $this->objects[$this->currentContents]['c'].= "\n".'BT '.sprintf('%.3f', $x) .' '.sprintf('%.3f', $y) .' Td';
- } else {
- $a = deg2rad((float)$angle);
- $tmp = "\n".'BT ';
- $tmp.= sprintf('%.3f', cos($a)) .' '.sprintf('%.3f', (-1.0*sin($a))) .' '.sprintf('%.3f', sin($a)) .' '.sprintf('%.3f', cos($a)) .' ';
- $tmp.= sprintf('%.3f', $x) .' '.sprintf('%.3f', $y) .' Tm';
- $this->objects[$this->currentContents]['c'].= $tmp;
- }
- if ($wordSpaceAdjust != 0 || $wordSpaceAdjust != $this->wordSpaceAdjust) {
- $this->wordSpaceAdjust = $wordSpaceAdjust;
- $this->objects[$this->currentContents]['c'].= ' '.sprintf('%.3f', $wordSpaceAdjust) .' Tw';
- }
- $len = strlen($text);
- $start = 0;
- /*
- for ($i = 0;$i<$len;$i++){
- $f = 1;
- $directive = 0; //$this->PRVTcheckTextDirective($text,$i,$f);
- if ($directive){
- // then we should write what we need to
- if ($i>$start){
- $part = substr($text,$start,$i-$start);
- $this->objects[$this->currentContents]['c'] .= ' /F'.$this->currentFontNum.' '.sprintf('%.1f',$size).' Tf ';
- $this->objects[$this->currentContents]['c'] .= ' ('.$this->filterText($part).') Tj';
- }
- if ($f){
- // then there was nothing drastic done here, restore the contents
- $this->setCurrentFont();
- } else {
- $this->objects[$this->currentContents]['c'] .= ' ET';
- $f = 1;
- $xp = $x;
- $yp = $y;
- $directive = 0; //$this->PRVTcheckTextDirective1($text,$i,$f,1,$xp,$yp,$size,$angle,$wordSpaceAdjust);
- // restart the text object
- if ($angle == 0){
- $this->objects[$this->currentContents]['c'] .= "\n".'BT '.sprintf('%.3f',$xp).' '.sprintf('%.3f',$yp).' Td';
- } else {
- $a = deg2rad((float)$angle);
- $tmp = "\n".'BT ';
- $tmp .= sprintf('%.3f',cos($a)).' '.sprintf('%.3f',(-1.0*sin($a))).' '.sprintf('%.3f',sin($a)).' '.sprintf('%.3f',cos($a)).' ';
- $tmp .= sprintf('%.3f',$xp).' '.sprintf('%.3f',$yp).' Tm';
- $this->objects[$this->currentContents]['c'] .= $tmp;
- }
- if ($wordSpaceAdjust != 0 || $wordSpaceAdjust != $this->wordSpaceAdjust){
- $this->wordSpaceAdjust = $wordSpaceAdjust;
- $this->objects[$this->currentContents]['c'] .= ' '.sprintf('%.3f',$wordSpaceAdjust).' Tw';
- }
- }
- // and move the writing point to the next piece of text
- $i = $i+$directive-1;
- $start = $i+1;
- }
- }
- */
- if ($start < $len) {
- $part = substr($text, $start);
- $this->objects[$this->currentContents]['c'].= ' /F'.$this->currentFontNum.' '.sprintf('%.1f', $size) .' Tf ';
- $this->objects[$this->currentContents]['c'].= ' ('.$this->filterText($part) .') Tj';
- }
- $this->objects[$this->currentContents]['c'].= ' ET';
- // if there are any open callbacks, then they should be called, to show the end of the line
- if ($this->nCallback>0) {
- for ($i = $this->nCallback;$i>0;$i--) {
- // call each function
- $tmp = $this->PRVTgetTextPosition($x, $y, $angle, $size, $wordSpaceAdjust, $text);
- $info = array('x' => $tmp[0], 'y' => $tmp[1], 'angle' => $angle, 'status' => 'eol', 'p' => $this->callback[$i]['p'], 'nCallback' => $this->callback[$i]['nCallback'], 'height' => $this->callback[$i]['height'], 'decender' => $this->callback[$i]['decender']);
- $func = $this->callback[$i]['f'];
- $this->$func($info);
- }
- }
- }
- /**
- * calculate how wide a given text string will be on a page, at a given size.
- * this can be called externally, but is alse used by the other class functions
- */
- function getTextWidth($size, $text, $spacing = 0) {
- // this function should not change any of the settings, though it will need to
- // track any directives which change during calculation, so copy them at the start
- // and put them back at the end.
- $store_currentTextState = $this->currentTextState;
- if (!$this->numFonts) {
- $this->selectFont('./fonts/Helvetica');
- }
- // converts a number or a float to a string so it can get the width
- $text = "$text";
- // hmm, this is where it all starts to get tricky - use the font information to
- // calculate the width of each character, add them up and convert to user units
- $w = 0;
- $len = strlen($text);
- $cf = $this->currentFont;
- $space_scale = 1000 / $size;
- for ($i = 0; $i < $len; $i++) {
- // $f = 1;
- // $directive = 0; //$this->PRVTcheckTextDirective($text,$i,$f);
- // if ($directive){
- // if ($f){
- // $this->setCurrentFont();
- // $cf = $this->currentFont;
- // }
- // $i = $i+$directive-1;
- // } else {
- $char = ord($text{$i});
- if ( isset($this->fonts[$cf]['differences'][$char])) {
- // then this character is being replaced by another
- $name = $this->fonts[$cf]['differences'][$char];
- if ( isset($this->fonts[$cf]['C'][$name]['WX']))
- $w+= $this->fonts[$cf]['C'][$name]['WX'];
- } else if (isset($this->fonts[$cf]['C'][$char]['WX']))
- $w+= $this->fonts[$cf]['C'][$char]['WX'];
- if ( $char == 32) // Space
- $w+= $spacing * $space_scale;
- }
- $this->currentTextState = $store_currentTextState;
- $this->setCurrentFont();
- return $w*$size/1000;
- }
- /**
- * do a part of the calculation for sorting out the justification of the text
- *
- * @access private
- */
- function PRVTadjustWrapText($text, $actual, $width, &$x, &$adjust, $justification) {
- switch ($justification) {
- case 'left':
- return;
- break;
- case 'right':
- $x+= $width-$actual;
- break;
- case 'center':
- case 'centre':
- $x+= ($width-$actual) /2;
- break;
- case 'full':
- // count the number of words
- $words = explode(' ', $text);
- $nspaces = count($words) -1;
- if ($nspaces>0) {
- $adjust = ($width-$actual) /$nspaces;
- } else {
- $adjust = 0;
- }
- break;
- }
- }
- /**
- * add text to the page, but ensure that it fits within a certain width
- * if it does not fit then put in as much as possible, splitting at word boundaries
- * and return the remainder.
- * justification and angle can also be specified for the text
- */
- function addTextWrap($x, $y, $width, $size, $text, $justification = 'left', $angle = 0, $test = 0) {
- // this will display the text, and if it goes beyond the width $width, will backtrack to the
- // previous space or hyphen, and return the remainder of the text.
- // $justification can be set to 'left','right','center','centre','full'
- // need to store the initial text state, as this will change during the width calculation
- // but will need to be re-set before printing, so that the chars work out right
- $store_currentTextState = $this->currentTextState;
- if (!$this->numFonts) {
- $this->selectFont('./fonts/Helvetica');
- }
- if ($width <= 0) {
- // error, pretend it printed ok, otherwise risking a loop
- return '';
- }
- $w = 0;
- $break = 0;
- $breakWidth = 0;
- $len = strlen($text);
- $cf = $this->currentFont;
- $tw = $width/$size*1000;
- for ($i = 0;$i<$len;$i++) {
- $f = 1;
- $directive = 0;
- //$this->PRVTcheckTextDirective($text,$i,$f);
- if ($directive) {
- if ($f) {
- $this->setCurrentFont();
- $cf = $this->currentFont;
- }
- $i = $i+$directive-1;
- } else {
- $cOrd = ord($text[$i]);
- if (isset($this->fonts[$cf]['differences'][$cOrd])) {
- // then this character is being replaced by another
- $cOrd2 = $this->fonts[$cf]['differences'][$cOrd];
- } else {
- $cOrd2 = $cOrd;
- }
- if (isset($this->fonts[$cf]['C'][$cOrd2]['WX'])) {
- $w+= $this->fonts[$cf]['C'][$cOrd2]['WX'];
- }
- if ($w>$tw) {
- // then we need to truncate this line
- if ($break>0) {
- // then we have somewhere that we can split :)
- if ($text[$break] == ' ') {
- $tmp = substr($text, 0, $break);
- } else {
- $tmp = substr($text, 0, $break+1);
- }
- $adjust = 0;
- $this->PRVTadjustWrapText($tmp, $breakWidth, $width, $x, $adjust, $justification);
- // reset the text state
- $this->currentTextState = $store_currentTextState;
- $this->setCurrentFont();
- if (!$test) {
- $this->addText($x, $y, $size, $tmp, $angle, $adjust);
- }
- return substr($text, $break+1);
- } else {
- // just split before the current character
- $tmp = substr($text, 0, $i);
- $adjust = 0;
- $ctmp = ord($text[$i]);
- if (isset($this->fonts[$cf]['differences'][$ctmp])) {
- $ctmp = $this->fonts[$cf]['differences'][$ctmp];
- }
- $tmpw = ($w-$this->fonts[$cf]['C'][$ctmp]['WX']) *$size/1000;
- $this->PRVTadjustWrapText($tmp, $tmpw, $width, $x, $adjust, $justification);
- // reset the text state
- $this->currentTextState = $store_currentTextState;
- $this->setCurrentFont();
- if (!$test) {
- $this->addText($x, $y, $size, $tmp, $angle, $adjust);
- }
- return substr($text, $i);
- }
- }
- if ($text[$i] == '-') {
- $break = $i;
- $breakWidth = $w*$size/1000;
- }
- if ($text[$i] == ' ') {
- $break = $i;
- $ctmp = ord($text[$i]);
- if (isset($this->fonts[$cf]['differences'][$ctmp])) {
- $ctmp = $this->fonts[$cf]['differences'][$ctmp];
- }
- $breakWidth = ($w-$this->fonts[$cf]['C'][$ctmp]['WX']) *$size/1000;
- }
- }
- }
- // then there was no need to break this line
- if ($justification == 'full') {
- $justification = 'left';
- }
- $adjust = 0;
- $tmpw = $w*$size/1000;
- $this->PRVTadjustWrapText($text, $tmpw, $width, $x, $adjust, $justification);
- // reset the text state
- $this->currentTextState = $store_currentTextState;
- $this->setCurrentFont();
- if (!$test) {
- $this->addText($x, $y, $size, $text, $angle, $adjust, $angle);
- }
- return '';
- }
- /**
- * this will be called at a new page to return the state to what it was on the
- * end of the previous page, before the stack was closed down
- * This is to get around not being able to have open 'q' across pages
- *
- */
- function saveState($pageEnd = 0) {
- if ($pageEnd) {
- // this will be called at a new page to return the state to what it was on the
- // end of the previous page, before the stack was closed down
- // This is to get around not being able to have open 'q' across pages
- $opt = $this->stateStack[$pageEnd];
- // ok to use this as stack starts numbering at 1
- $this->setColor($opt['col']['r'], $opt['col']['g'], $opt['col']['b'], 1);
- $this->setStrokeColor($opt['str']['r'], $opt['str']['g'], $opt['str']['b'], 1);
- $this->objects[$this->currentContents]['c'].= "\n".$opt['lin'];
- // $this->currentLineStyle = $opt['lin'];
- } else {
- $this->nStateStack++;
- $this->stateStack[$this->nStateStack] = array(
- 'col' => $this->currentColour, 'str' => $this->currentStrokeColour, 'lin' => $this->currentLineStyle);
- }
- $this->objects[$this->currentContents]['c'].= "\nq";
- }
- /**
- * restore a previously saved state
- */
- function restoreState($pageEnd = 0) {
- if (!$pageEnd) {
- $n = $this->nStateStack;
- $this->currentColour = $this->stateStack[$n]['col'];
- $this->currentStrokeColour = $this->stateStack[$n]['str'];
- $this->objects[$this->currentContents]['c'].= "\n".$this->stateStack[$n]['lin'];
- $this->currentLineStyle = $this->stateStack[$n]['lin'];
- unset($this->stateStack[$n]);
- $this->nStateStack--;
- }
- $this->objects[$this->currentContents]['c'].= "\nQ";
- }
- /**
- * make a loose object, the output will go into this object, until it is closed, then will revert to
- * the current one.
- * this object will not appear until it is included within a page.
- * the function will return the object number
- */
- function openObject() {
- $this->nStack++;
- $this->stack[$this->nStack] = array('c' => $this->currentContents, 'p' => $this->currentPage);
- // add a new object of the content type, to hold the data flow
- $this->numObj++;
- $this->o_contents($this->numObj, 'new');
- $this->currentContents = $this->numObj;
- $this->looseObjects[$this->numObj] = 1;
- return $this->numObj;
- }
- /**
- * open an existing object for editing
- */
- function reopenObject($id) {
- $this->nStack++;
- $this->stack[$this->nStack] = array('c' => $this->currentContents, 'p' => $this->currentPage);
- $this->currentContents = $id;
- // also if this object is the primary contents for a page, then set the current page to its parent
- if (isset($this->objects[$id]['onPage'])) {
- $this->currentPage = $this->objects[$id]['onPage'];
- }
- }
- /**
- * close an object
- */
- function closeObject() {
- // close the object, as long as there was one open in the first place, which will be indicated by
- // an objectId on the stack.
- if ($this->nStack>0) {
- $this->currentContents = $this->stack[$this->nStack]['c'];
- $this->currentPage = $this->stack[$this->nStack]['p'];
- $this->nStack--;
- // easier to probably not worry about removing the old entries, they will be overwritten
- // if there are new ones.
- }
- }
- /**
- * stop an object from appearing on pages from this point on
- */
- function stopObject($id) {
- // if an object has been appearing on pages up to now, then stop it, this page will
- // be the last one that could contian it.
- if (isset($this->addLooseObjects[$id])) {
- $this->addLooseObjects[$id] = '';
- }
- }
- /**
- * after an object has been created, it wil only show if it has been added, using this function.
- */
- function addObject($id, $options = 'add') {
- // add the specified object to the page
- if (isset($this->looseObjects[$id]) && $this->currentContents != $id) {
- // then it is a valid object, and it is not being added to itself
- switch ($options) {
- case 'all':
- // then this object is to be added to this page (done in the next block) and
- // all future new pages.
- $this->addLooseObjects[$id] = 'all';
- case 'add':
- if (isset($this->objects[$this->currentContents]['onPage'])) {
- // then the destination contents is the primary for the page
- // (though this object is actually added to that page)
- $this->o_page($this->objects[$this->currentContents]['onPage'], 'content', $id);
- }
- break;
- case 'even':
- $this->addLooseObjects[$id] = 'even';
- $pageObjectId = $this->objects[$this->currentContents]['onPage'];
- if ($this->objects[$pageObjectId]['info']['pageNum']%2 == 0) {
- $this->addObject($id);
- // hacky huh :)
- }
- break;
- case 'odd':
- $this->addLooseObjects[$id] = 'odd';
- $pageObjectId = $this->objects[$this->currentContents]['onPage'];
- if ($this->objects[$pageObjectId]['info']['pageNum']%2 == 1) {
- $this->addObject($id);
- // hacky huh :)
- }
- break;
- case 'next':
- $this->addLooseObjects[$id] = 'all';
- break;
- case 'nexteven':
- $this->addLooseObjects[$id] = 'even';
- break;
- case 'nextodd':
- $this->addLooseObjects[$id] = 'odd';
- break;
- }
- }
- }
- /**
- * return a storable representation of a specific object
- */
- function serializeObject($id) {
- if ( array_key_exists($id, $this->objects))
- return var_export($this->objects[$id], true);
- return null;
- }
- /**
- * restore an object from its stored representation. returns its new object id.
- */
- function restoreSerializedObject($obj) {
- $obj_id = $this->openObject();
- eval('$this->objects[$obj_id] = ' . $obj . ';');
- $this->closeObject();
- return $obj_id;
- }
- /**
- * add content to the documents info object
- */
- function addInfo($label, $value = 0) {
- // this will only work if the label is one of the valid ones.
- // modify this so that arrays can be passed as well.
- // if $label is an array then assume that it is key => value pairs
- // else assume that they are both scalar, anything else will probably error
- if (is_array($label)) {
- foreach ($label as $l => $v) {
- $this->o_info($this->infoObject, $l, $v);
- }
- } else {
- $this->o_info($this->infoObject, $label, $value);
- }
- }
- /**
- * set the viewer preferences of the document, it is up to the browser to obey these.
- */
- function setPreferences($label, $value = 0) {
- // this will only work if the label is one of the valid ones.
- if (is_array($label)) {
- foreach ($label as $l => $v) {
- $this->o_catalog($this->catalogId, 'viewerPreferences', array($l => $v));
- }
- } else {
- $this->o_catalog($this->catalogId, 'viewerPreferences', array($label => $value));
- }
- }
- /**
- * extract an integer from a position in a byte stream
- *
- * @access private
- */
- function PRVT_getBytes(&$data, $pos, $num) {
- // return the integer represented by $num bytes from $pos within $data
- $ret = 0;
- for ($i = 0;$i<$num;$i++) {
- $ret = $ret*256;
- $ret+= ord($data[$pos+$i]);
- }
- return $ret;
- }
- /**
- * add a PNG image into the document, from a file
- * this should work with remote files
- */
- function addPngFromFile($file, $x, $y, $w = 0, $h = 0) {
- // read in a png file, interpret it, then add to the system
- $error = 0;
- $tmp = get_magic_quotes_runtime();
- set_magic_quotes_runtime(0);
- if ( ($data = file_get_contents($file)) === false) {
- // $fp = @fopen($file,'rb');
- // if ($fp){
- // $data = '';
- // while(!feof($fp)){
- // $data .= fread($fp,1024);
- // }
- // fclose($fp);
- $error = 1;
- $errormsg = 'trouble opening file: '.$file;
- }
- set_magic_quotes_runtime($tmp);
- if (!$error) {
- $header = chr(137) .chr(80) .chr(78) .chr(71) .chr(13) .chr(10) .chr(26) .chr(10);
- if (substr($data, 0, 8) != $header) {
- $error = 1;
- $errormsg = 'this file does not have a valid header';
- }
- }
- if (!$error) {
- // set pointer
- $p = 8;
- $len = strlen($data);
- // cycle through the file, identifying chunks
- $haveHeader = 0;
- $info = array();
- $idata = '';
- $pdata = '';
- while ($p < $len) {
- $chunkLen = $this->PRVT_getBytes($data, $p, 4);
- $chunkType = substr($data, $p+4, 4);
- // echo $chunkType.' - '.$chunkLen.'<br>';
- switch ($chunkType) {
- case 'IHDR':
- // this is where all the file information comes from
- $info['width'] = $this->PRVT_getBytes($data, $p+8, 4);
- $info['height'] = $this->PRVT_getBytes($data, $p+12, 4);
- $info['bitDepth'] = ord($data[$p+16]);
- $info['colorType'] = ord($data[$p+17]);
- $info['compressionMethod'] = ord($data[$p+18]);
- $info['filterMethod'] = ord($data[$p+19]);
- $info['interlaceMethod'] = ord($data[$p+20]);
- //print_r($info);
- $haveHeader = 1;
- if ($info['compressionMethod'] != 0) {
- $error = 1;
- $errormsg = 'unsupported compression method';
- }
- if ($info['filterMethod'] != 0) {
- $error = 1;
- $errormsg = 'unsupported filter method';
- }
- break;
- case 'PLTE':
- $pdata.= substr($data, $p+8, $chunkLen);
- break;
- case 'IDAT':
- $idata.= substr($data, $p+8, $chunkLen);
- break;
- case 'tRNS':
- //this chunk can only occur once and it must occur after the PLTE chunk and before IDAT chunk
- //print "tRNS found, color type = ".$info['colorType']."\n";
- $transparency = array();
- if ($info['colorType'] == 3) {
- // indexed color, rbg
- /* corresponding to entries in the plte chunk
- Alpha for palette index 0: 1 byte
- Alpha for palette index 1: 1 byte
- ...etc...
- */
- // there will be one entry for each palette entry. up until the last non-opaque entry.
- // set up an array, stretching over all palette entries which will be o (opaque) or 1 (transparent)
- $transparency['type'] = 'indexed';
- $numPalette = strlen($pdata) /3;
- $trans = 0;
- for ($i = $chunkLen;$i >= 0;$i--) {
- if (ord($data[$p+8+$i]) == 0) {
- $trans = $i;
- }
- }
- $transparency['data'] = $trans;
- } elseif ($info['colorType'] == 0) {
- // grayscale
- /* corresponding to entries in the plte chunk
- Gray: 2 bytes, range 0 .. (2^bitdepth)-1
- */
- // $transparency['grayscale'] = $this->PRVT_getBytes($data,$p+8,2); // g = grayscale
- $transparency['type'] = 'indexed';
- $transparency['data'] = ord($data[$p+8+1]);
- } elseif ($info['colorType'] == 2) {
- // truecolor
- /* corresponding to entries in the plte chunk
- Red: 2 bytes, range 0 .. (2^bitdepth)-1
- Green: 2 bytes, range 0 .. (2^bitdepth)-1
- Blue: 2 bytes, range 0 .. (2^bitdepth)-1
- */
- $transparency['r'] = $this->PRVT_getBytes($data, $p+8, 2);
- // r from truecolor
- $transparency['g'] = $this->PRVT_getBytes($data, $p+10, 2);
- // g from truecolor
- $transparency['b'] = $this->PRVT_getBytes($data, $p+12, 2);
- // b from truecolor
- $transparency['type'] = 'color-key';
-
- } else {
- //unsupported transparency type
- }
- // KS End new code
- break;
- default:
- break;
- }
- $p+= $chunkLen+12;
- }
- if (!$haveHeader) {
- $error = 1;
- $errormsg = 'information header is missing';
- }
- if (isset($info['interlaceMethod']) && $info['interlaceMethod']) {
- $error = 1;
- $errormsg = 'There appears to be no support for interlaced images in pdf.';
- }
- }
- if (!$error && $info['bitDepth'] > 8) {
- $error = 1;
- $errormsg = 'only bit depth of 8 or less is supported';
- }
- if (!$error) {
- if ($info['colorType'] != 2 && $info['colorType'] != 0 && $info['colorType'] != 3) {
- $error = 1;
- $errormsg = 'transparancey alpha channel not supported, transparency only supported for palette images.';
- } else {
- switch ($info['colorType']) {
- case 3:
- $color = 'DeviceRGB';
- $ncolor = 1;
- break;
- case 2:
- $color = 'DeviceRGB';
- $ncolor = 3;
- break;
- case 0:
- $color = 'DeviceGray';
- $ncolor = 1;
- break;
- }
- }
- }
- if ($error) {
- $this->addMessage('PNG error - ('.$file.') '.$errormsg);
- return;
- }
- if ($w == 0) {
- $w = $h/$info['height']*$info['width'];
- }
- if ($h == 0) {
- $h = $w*$info['height']/$info['width'];
- }
- //print_r($info);
- // so this image is ok... add it in.
- $this->numImages++;
- $im = $this->numImages;
- $label = 'I'.$im;
- $this->numObj++;
- // $this->o_image($this->numObj,'new',array('label' => $label,'data' => $idata,'iw' => $w,'ih' => $h,'type' => 'png','ic' => $info['width']));
- $options = array('label' => $label, 'data' => $idata, 'bitsPerComponent' => $info['bitDepth'], 'pdata' => $pdata, 'iw' => $info['width'], 'ih' => $info['height'], 'type' => 'png', 'color' => $color, 'ncolor' => $ncolor);
- if (isset($transparency)) {
- $options['transparency'] = $transparency;
- }
- $this->o_image($this->numObj, 'new', $options);
- $this->objects[$this->currentContents]['c'].= "\nq";
- $this->objects[$this->currentContents]['c'].= "\n".sprintf('%.3f', $w) ." 0 0 ".sprintf('%.3f', $h) ." ".sprintf('%.3f', $x) ." ".sprintf('%.3f', $y) ." cm";
- $this->objects[$this->currentContents]['c'].= "\n/".$label.' Do';
- $this->objects[$this->currentContents]['c'].= "\nQ";
- }
- /**
- * add a JPEG image into the document, from a file
- */
- function addJpegFromFile($img, $x, $y, $w = 0, $h = 0) {
- // attempt to add a jpeg image straight from a file, using no GD commands
- // note that this function is unable to operate on a remote file.
- if (!file_exists($img)) {
- return;
- }
- $tmp = getimagesize($img);
- $imageWidth = $tmp[0];
- $imageHeight = $tmp[1];
- if (isset($tmp['channels'])) {
- $channels = $tmp['channels'];
- } else {
- $channels = 3;
- }
- if ($w <= 0 && $h <= 0) {
- $w = $imageWidth;
- }
- if ($w == 0) {
- $w = $h/$imageHeight*$imageWidth;
- }
- if ($h == 0) {
- $h = $w*$imageHeight/$imageWidth;
- }
- //$fp = fopen($img,'rb');
- $tmp = get_magic_quotes_runtime();
- set_magic_quotes_runtime(0);
- $data = file_get_contents($img);
- //fread($fp,filesize($img));
- set_magic_quotes_runtime($tmp);
- //fclose($fp);
- $this->addJpegImage_common($data, $x, $y, $w, $h, $imageWidth, $imageHeight, $channels);
- }
- /**
- * add an image into the document, from a GD object
- * this function is not all that reliable, and I would probably encourage people to use
- * the file based functions
- */
- function addImage(&$img, $x, $y, $w = 0, $h = 0, $quality = 75) {
- // add a new image into the current location, as an external object
- // add the image at $x,$y, and with width and height as defined by $w & $h
- // note that this will only work with full colour images and makes them jpg images for display
- // later versions could present lossless image formats if there is interest.
- // there seems to be some problem here in that images that have quality set above 75 do not appear
- // not too sure why this is, but in the meantime I have restricted this to 75.
- if ($quality>75) {
- $quality = 75;
- }
- // if the width or height are set to zero, then set the other one based on keeping the image
- // height/width ratio the same, if they are both zero, then give up :)
- $imageWidth = imagesx($img);
- $imageHeight = imagesy($img);
- if ($w <= 0 && $h <= 0) {
- return;
- }
- if ($w == 0) {
- $w = $h/$imageHeight*$imageWidth;
- }
- if ($h == 0) {
- $h = $w*$imageHeight/$imageWidth;
- }
- // gotta get the data out of the img..
- // so I write to a temp file, and then read it back.. soo ugly, my apologies.
- $tmpDir = '/tmp';
- $tmpName = tempnam($tmpDir, 'img');
- imagejpeg($img, $tmpName, $quality);
- //$fp = fopen($tmpName,'rb');
- $tmp = get_magic_quotes_runtime();
- set_magic_quotes_runtime(0);
- if ( ($data = file_get_contents($tmpName)) === false) {
- // $fp = @fopen($tmpName,'rb');
- // if ($fp){
- // $data = '';
- // while(!feof($fp)){
- // $data .= fread($fp,1024);
- // }
- // fclose($fp);
- $error = 1;
- $errormsg = 'trouble opening file';
- }
- // $data = fread($fp,filesize($tmpName));
- set_magic_quotes_runtime($tmp);
- // fclose($fp);
- unlink($tmpName);
- $this->addJpegImage_common($data, $x, $y, $w, $h, $imageWidth, $imageHeight);
- }
- /**
- * common code used by the two JPEG adding functions
- *
- * @access private
- */
- function addJpegImage_common(&$data, $x, $y, $w = 0, $h = 0, $imageWidth, $imageHeight, $channels = 3) {
- // note that this function is not to be called externally
- // it is just the common code between the GD and the file options
- $this->numImages++;
- $im = $this->numImages;
- $label = 'I'.$im;
- $this->numObj++;
- $this->o_image($this->numObj, 'new', array('label' => $label, 'data' => &$data, 'iw' => $imageWidth, 'ih' => $imageHeight, 'channels' => $channels));
- $this->objects[$this->currentContents]['c'].= "\nq";
- $this->objects[$this->currentContents]['c'].= "\n".sprintf('%.3f', $w) ." 0 0 ".sprintf('%.3f', $h) ." ".sprintf('%.3f', $x) ." ".sprintf('%.3f', $y) ." cm";
- $this->objects[$this->currentContents]['c'].= "\n/".$label.' Do';
- $this->objects[$this->currentContents]['c'].= "\nQ";
- }
- /**
- * specify where the document should open when it first starts
- */
- function openHere($style, $a = 0, $b = 0, $c = 0) {
- // this function will open the document at a specified page, in a specified style
- // the values for style, and the required paramters are:
- // 'XYZ' left, top, zoom
- // 'Fit'
- // 'FitH' top
- // 'FitV' left
- // 'FitR' left,bottom,right
- // 'FitB'
- // 'FitBH' top
- // 'FitBV' left
- $this->numObj++;
- $this->o_destination($this->numObj, 'new', array('page' => $this->currentPage, 'type' => $style, 'p1' => $a, 'p2' => $b, 'p3' => $c));
- $id = $this->catalogId;
- $this->o_catalog($id, 'openHere', $this->numObj);
- }
- /**
- * create a labelled destination within the document
- */
- function addDestination($label, $style, $a = 0, $b = 0, $c = 0) {
- // associates the given label with the destination, it is done this way so that a destination can be specified after
- // it has been linked to
- // styles are the same as the 'openHere' function
- $this->numObj++;
- $this->o_destination($this->numObj, 'new', array('page' => $this->currentPage, 'type' => $style, 'p1' => $a, 'p2' => $b, 'p3' => $c));
- $id = $this->numObj;
- // store the label->idf relationship, note that this means that labels can be used only once
- $this->destinations["$label"] = $id;
- }
- /**
- * define font families, this is used to initialize the font families for the default fonts
- * and for the user to add new ones for their fonts. The default bahavious can be overridden should
- * that be desired.
- */
- function setFontFamily($family, $options = '') {
- if (!is_array($options)) {
- if ($family == 'init') {
- // set the known family groups
- // these font families will be used to enable bold and italic markers to be included
- // within text streams. html forms will be used... <b></b> <i></i>
- $this->fontFamilies['Helvetica.afm'] =
- array('b' => 'Helvetica-Bold.afm',
- 'i' => 'Helvetica-Oblique.afm',
- 'bi' => 'Helvetica-BoldOblique.afm',
- 'ib' => 'Helvetica-BoldOblique.afm');
- $this->fontFamilies['Courier.afm'] =
- array('b' => 'Courier-Bold.afm',
- 'i' => 'Courier-Oblique.afm',
- 'bi' => 'Courier-BoldOblique.afm',
- 'ib' => 'Courier-BoldOblique.afm');
- $this->fontFamilies['Times-Roman.afm'] =
- array('b' => 'Times-Bold.afm',
- 'i' => 'Times-Italic.afm',
- 'bi' => 'Times-BoldItalic.afm',
- 'ib' => 'Times-BoldItalic.afm');
- }
- } else {
- // the user is trying to set a font family
- // note that this can also be used to set the base ones to something else
- if (strlen($family)) {
- $this->fontFamilies[$family] = $options;
- }
- }
- }
- /**
- * used to add messages for use in debugging
- */
- function addMessage($message) {
- $this->messages.= $message."\n";
- }
- /**
- * a few functions which should allow the document to be treated transactionally.
- */
- function transaction($action) {
- switch ($action) {
- case 'start':
- // store all the data away into the checkpoint variable
- $data = get_object_vars($this);
- $this->checkpoint = $data;
- unset($data);
- break;
- case 'commit':
- if (is_array($this->checkpoint) && isset($this->checkpoint['checkpoint'])) {
- $tmp = $this->checkpoint['checkpoint'];
- $this->checkpoint = $tmp;
- unset($tmp);
- } else {
- $this->checkpoint = '';
- }
- break;
- case 'rewind':
- // do not destroy the current checkpoint, but move us back to the state then, so that we can try again
- if (is_array($this->checkpoint)) {
- // can only abort if were inside a checkpoint
- $tmp = $this->checkpoint;
- foreach ($tmp as $k => $v) {
- if ($k != 'checkpoint') {
- $this->$k = $v;
- }
- }
- unset($tmp);
- }
- break;
- case 'abort':
- if (is_array($this->checkpoint)) {
- // can only abort if were inside a checkpoint
- $tmp = $this->checkpoint;
- foreach ($tmp as $k => $v) {
- $this->$k = $v;
- }
- unset($tmp);
- }
- break;
- }
- }
- }
- // end of class
- ?>