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<?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
?>
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