5 * http://www.ros.co.nz/pdf
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7 * A PHP class to provide the basic functionality to create a pdf document without
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8 * any requirement for additional modules.
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10 * Note that they companion class CezPdf can be used to extend this class and dramatically
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11 * simplify the creation of documents.
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14 * there is no warranty, implied or otherwise with this software.
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17 * This code has been placed in the Public Domain for all to enjoy.
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19 * @author Wayne Munro <pdf@ros.co.nz>
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26 * the current number of pdf objects in the document
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30 * this array contains all of the pdf objects, ready for final assembly
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32 var $objects = array();
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34 * the objectId (number within the objects array) of the document catalog
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38 * array carrying information about the fonts that the system currently knows about
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39 * used to ensure that a font is not loaded twice, among other things
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43 * a record of the current font
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45 var $currentFont='';
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47 * the current base font
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49 var $currentBaseFont='';
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51 * the number of the current font within the font array
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53 var $currentFontNum=0;
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59 * object number of the current page
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63 * object number of the currently active contents block
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65 var $currentContents;
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67 * number of fonts within the system
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71 * current colour for fill operations, defaults to inactive value, all three components should be between 0 and 1 inclusive when active
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73 var $currentColour=array('r'=>-1,'g'=>-1,'b'=>-1);
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75 * current colour for stroke operations (lines etc.)
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77 var $currentStrokeColour=array('r'=>-1,'g'=>-1,'b'=>-1);
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79 * current style that lines are drawn in
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81 var $currentLineStyle='';
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83 * an array which is used to save the state of the document, mainly the colours and styles
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84 * it is used to temporarily change to another state, the change back to what it was before
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86 var $stateStack = array();
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88 * number of elements within the state stack
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90 var $nStateStack = 0;
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92 * number of page objects within the document
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96 * object Id storage stack
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100 * number of elements within the object Id storage stack
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104 * an array which contains information about the objects which are not firmly attached to pages
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105 * these have been added with the addObject function
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107 var $looseObjects=array();
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109 * array contains infomation about how the loose objects are to be added to the document
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111 var $addLooseObjects=array();
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113 * the objectId of the information object for the document
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114 * this contains authorship, title etc.
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118 * number of images being tracked within the document
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122 * an array containing options about the document
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123 * it defaults to turning on the compression of the objects
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125 var $options=array('compression'=>1);
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127 * the objectId of the first page of the document
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131 * used to track the last used value of the inter-word spacing, this is so that it is known
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132 * when the spacing is changed.
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134 var $wordSpaceAdjust=0;
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136 * the object Id of the procset object
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138 var $procsetObjectId;
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140 * store the information about the relationship between font families
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141 * this used so that the code knows which font is the bold version of another font, etc.
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142 * the value of this array is initialised in the constuctor function.
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144 var $fontFamilies = array();
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146 * track if the current font is bolded or italicised
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148 var $currentTextState = '';
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150 * messages are stored here during processing, these can be selected afterwards to give some useful debug information
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154 * the ancryption array for the document encryption is stored here
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158 * the object Id of the encryption information
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160 var $arc4_objnum=0;
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162 * the file identifier, used to uniquely identify a pdf document
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164 var $fileIdentifier='';
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166 * a flag to say if a document is to be encrypted or not
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170 * the ancryption key for the encryption of all the document content (structure is not encrypted)
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172 var $encryptionKey='';
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174 * array which forms a stack to keep track of nested callback functions
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176 var $callback = array();
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178 * the number of callback functions in the callback array
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180 var $nCallback = 0;
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182 * store label->id pairs for named destinations, these will be used to replace internal links
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183 * done this way so that destinations can be defined after the location that links to them
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185 var $destinations = array();
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187 * store the stack for the transaction commands, each item in here is a record of the values of all the
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188 * variables within the class, so that the user can rollback at will (from each 'start' command)
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189 * note that this includes the objects array, so these can be large.
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191 var $checkpoint = '';
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193 * class constructor
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194 * this will start a new document
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195 * @var array array of 4 numbers, defining the bottom left and upper right corner of the page. first two are normally zero.
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197 function Cpdf ($pageSize=array(0,0,612,792)){
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198 $this->newDocument($pageSize);
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200 // also initialize the font families that are known about already
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201 $this->setFontFamily('init');
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202 // $this->fileIdentifier = md5('xxxxxxxx'.time());
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207 * Document object methods (internal use only)
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209 * There is about one object method for each type of object in the pdf document
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210 * Each function has the same call list ($id,$action,$options).
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211 * $id = the object ID of the object, or what it is to be if it is being created
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212 * $action = a string specifying the action to be performed, though ALL must support:
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213 * 'new' - create the object with the id $id
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214 * 'out' - produce the output for the pdf object
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215 * $options = optional, a string or array containing the various parameters for the object
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217 * These, in conjunction with the output function are the ONLY way for output to be produced
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218 * within the pdf 'file'.
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222 *destination object, used to specify the location for the user to jump to, presently on opening
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224 function o_destination($id,$action,$options=''){
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225 if ($action!='new'){
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226 $o =& $this->objects[$id];
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230 $this->objects[$id]=array('t'=>'destination','info'=>array());
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232 switch ($options['type']){
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235 $tmp = ' '.$options['p3'].$tmp;
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240 $tmp = ' '.$options['p1'].' '.$options['p2'].$tmp;
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243 $tmp = $options['type'].$tmp;
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244 $this->objects[$id]['info']['string']=$tmp;
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245 $this->objects[$id]['info']['page']=$options['page'];
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250 $res="\n".$id." 0 obj\n".'['.$tmp['page'].' 0 R /'.$tmp['string']."]\nendobj\n";
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257 * set the viewer preferences
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259 function o_viewerPreferences($id,$action,$options=''){
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260 if ($action!='new'){
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261 $o =& $this->objects[$id];
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265 $this->objects[$id]=array('t'=>'viewerPreferences','info'=>array());
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268 foreach($options as $k=>$v){
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270 case 'HideToolbar':
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271 case 'HideMenubar':
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272 case 'HideWindowUI':
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274 case 'CenterWindow':
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275 case 'NonFullScreenPageMode':
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284 $res="\n".$id." 0 obj\n".'<< ';
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285 foreach($o['info'] as $k=>$v){
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286 $res.="\n/".$k.' '.$v;
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295 * define the document catalog, the overall controller for the document
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297 function o_catalog($id,$action,$options=''){
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298 if ($action!='new'){
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299 $o =& $this->objects[$id];
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303 $this->objects[$id]=array('t'=>'catalog','info'=>array());
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304 $this->catalogId=$id;
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309 $o['info'][$action]=$options;
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311 case 'viewerPreferences':
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312 if (!isset($o['info']['viewerPreferences'])){
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314 $this->o_viewerPreferences($this->numObj,'new');
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315 $o['info']['viewerPreferences']=$this->numObj;
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317 $vp = $o['info']['viewerPreferences'];
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318 $this->o_viewerPreferences($vp,'add',$options);
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321 $res="\n".$id." 0 obj\n".'<< /Type /Catalog';
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322 foreach($o['info'] as $k=>$v){
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325 $res.="\n".'/Outlines '.$v.' 0 R';
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328 $res.="\n".'/Pages '.$v.' 0 R';
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330 case 'viewerPreferences':
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331 $res.="\n".'/ViewerPreferences '.$o['info']['viewerPreferences'].' 0 R';
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334 $res.="\n".'/OpenAction '.$o['info']['openHere'].' 0 R';
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338 $res.=" >>\nendobj";
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345 * object which is a parent to the pages in the document
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347 function o_pages($id,$action,$options=''){
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348 if ($action!='new'){
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349 $o =& $this->objects[$id];
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353 $this->objects[$id]=array('t'=>'pages','info'=>array());
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354 $this->o_catalog($this->catalogId,'pages',$id);
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357 if (!is_array($options)){
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358 // then it will just be the id of the new page
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359 $o['info']['pages'][]=$options;
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361 // then it should be an array having 'id','rid','pos', where rid=the page to which this one will be placed relative
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362 // and pos is either 'before' or 'after', saying where this page will fit.
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363 if (isset($options['id']) && isset($options['rid']) && isset($options['pos'])){
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364 $i = array_search($options['rid'],$o['info']['pages']);
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365 if (isset($o['info']['pages'][$i]) && $o['info']['pages'][$i]==$options['rid']){
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366 // then there is a match
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368 switch ($options['pos']){
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380 for ($j=count($o['info']['pages'])-1;$j>=$k;$j--){
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381 $o['info']['pages'][$j+1]=$o['info']['pages'][$j];
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383 $o['info']['pages'][$k]=$options['id'];
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390 $o['info']['procset']=$options;
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393 $o['info']['mediaBox']=$options; // which should be an array of 4 numbers
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396 $o['info']['fonts'][]=array('objNum'=>$options['objNum'],'fontNum'=>$options['fontNum']);
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399 $o['info']['xObjects'][]=array('objNum'=>$options['objNum'],'label'=>$options['label']);
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402 if (count($o['info']['pages'])){
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403 $res="\n".$id." 0 obj\n<< /Type /Pages\n/Kids [";
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404 foreach($o['info']['pages'] as $k=>$v){
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407 $res.="]\n/Count ".count($this->objects[$id]['info']['pages']);
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408 if ((isset($o['info']['fonts']) && count($o['info']['fonts'])) || isset($o['info']['procset'])){
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409 $res.="\n/Resources <<";
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410 if (isset($o['info']['procset'])){
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411 $res.="\n/ProcSet ".$o['info']['procset']." 0 R";
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413 if (isset($o['info']['fonts']) && count($o['info']['fonts'])){
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414 $res.="\n/Font << ";
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415 foreach($o['info']['fonts'] as $finfo){
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416 $res.="\n/F".$finfo['fontNum']." ".$finfo['objNum']." 0 R";
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420 if (isset($o['info']['xObjects']) && count($o['info']['xObjects'])){
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421 $res.="\n/XObject << ";
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422 foreach($o['info']['xObjects'] as $finfo){
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423 $res.="\n/".$finfo['label']." ".$finfo['objNum']." 0 R";
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428 if (isset($o['info']['mediaBox'])){
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429 $tmp=$o['info']['mediaBox'];
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430 $res.="\n/MediaBox [".sprintf('%.3f',$tmp[0]).' '.sprintf('%.3f',$tmp[1]).' '.sprintf('%.3f',$tmp[2]).' '.sprintf('%.3f',$tmp[3]).']';
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433 $res.="\n >>\nendobj";
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435 $res="\n".$id." 0 obj\n<< /Type /Pages\n/Count 0\n>>\nendobj";
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443 * define the outlines in the doc, empty for now
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445 function o_outlines($id,$action,$options=''){
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446 if ($action!='new'){
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447 $o =& $this->objects[$id];
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451 $this->objects[$id]=array('t'=>'outlines','info'=>array('outlines'=>array()));
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452 $this->o_catalog($this->catalogId,'outlines',$id);
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455 $o['info']['outlines'][]=$options;
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458 if (count($o['info']['outlines'])){
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459 $res="\n".$id." 0 obj\n<< /Type /Outlines /Kids [";
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460 foreach($o['info']['outlines'] as $k=>$v){
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463 $res.="] /Count ".count($o['info']['outlines'])." >>\nendobj";
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465 $res="\n".$id." 0 obj\n<< /Type /Outlines /Count 0 >>\nendobj";
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473 * an object to hold the font description
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475 function o_font($id,$action,$options=''){
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476 if ($action!='new'){
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477 $o =& $this->objects[$id];
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481 $this->objects[$id]=array('t'=>'font','info'=>array('name'=>$options['name'],'SubType'=>'Type1'));
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482 $fontNum=$this->numFonts;
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483 $this->objects[$id]['info']['fontNum']=$fontNum;
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484 // deal with the encoding and the differences
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485 if (isset($options['differences'])){
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486 // then we'll need an encoding dictionary
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488 $this->o_fontEncoding($this->numObj,'new',$options);
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489 $this->objects[$id]['info']['encodingDictionary']=$this->numObj;
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490 } else if (isset($options['encoding'])){
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491 // we can specify encoding here
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492 switch($options['encoding']){
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493 case 'WinAnsiEncoding':
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494 case 'MacRomanEncoding':
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495 case 'MacExpertEncoding':
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496 $this->objects[$id]['info']['encoding']=$options['encoding'];
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501 $this->objects[$id]['info']['encoding']='WinAnsiEncoding';
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505 $this->objects[$id]['info']['encoding']='WinAnsiEncoding';
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507 // also tell the pages node about the new font
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508 $this->o_pages($this->currentNode,'font',array('fontNum'=>$fontNum,'objNum'=>$id));
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511 foreach ($options as $k=>$v){
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514 $o['info']['name'] = $v;
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519 case 'FontDescriptor':
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521 $this->addMessage('o_font '.$k." : ".$v);
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522 $o['info'][$k] = $v;
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528 $res="\n".$id." 0 obj\n<< /Type /Font\n/Subtype /".$o['info']['SubType']."\n";
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529 $res.="/Name /F".$o['info']['fontNum']."\n";
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530 $res.="/BaseFont /".$o['info']['name']."\n";
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531 if (isset($o['info']['encodingDictionary'])){
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532 // then place a reference to the dictionary
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533 $res.="/Encoding ".$o['info']['encodingDictionary']." 0 R\n";
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534 } else if (isset($o['info']['encoding'])){
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535 // use the specified encoding
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536 $res.="/Encoding /".$o['info']['encoding']."\n";
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538 if (isset($o['info']['FirstChar'])){
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539 $res.="/FirstChar ".$o['info']['FirstChar']."\n";
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541 if (isset($o['info']['LastChar'])){
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542 $res.="/LastChar ".$o['info']['LastChar']."\n";
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544 if (isset($o['info']['Widths'])){
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545 $res.="/Widths ".$o['info']['Widths']." 0 R\n";
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547 if (isset($o['info']['FontDescriptor'])){
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548 $res.="/FontDescriptor ".$o['info']['FontDescriptor']." 0 R\n";
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550 $res.=">>\nendobj";
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557 * a font descriptor, needed for including additional fonts
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559 function o_fontDescriptor($id,$action,$options=''){
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560 if ($action!='new'){
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561 $o =& $this->objects[$id];
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565 $this->objects[$id]=array('t'=>'fontDescriptor','info'=>$options);
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568 $res="\n".$id." 0 obj\n<< /Type /FontDescriptor\n";
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569 foreach ($o['info'] as $label => $value){
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575 case 'ItalicAngle':
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580 case 'MissingWidth':
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584 if (strlen($value)){
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585 $res.='/'.$label.' '.$value."\n";
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591 $res.='/'.$label.' '.$value." 0 R\n";
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594 $res.='/'.$label.' ['.$value[0].' '.$value[1].' '.$value[2].' '.$value[3]."]\n";
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597 $res.='/'.$label.' /'.$value."\n";
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601 $res.=">>\nendobj";
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608 * the font encoding
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610 function o_fontEncoding($id,$action,$options=''){
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611 if ($action!='new'){
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612 $o =& $this->objects[$id];
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616 // the options array should contain 'differences' and maybe 'encoding'
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617 $this->objects[$id]=array('t'=>'fontEncoding','info'=>$options);
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620 $res="\n".$id." 0 obj\n<< /Type /Encoding\n";
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621 if (!isset($o['info']['encoding'])){
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622 $o['info']['encoding']='WinAnsiEncoding';
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624 if ($o['info']['encoding']!='none'){
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625 $res.="/BaseEncoding /".$o['info']['encoding']."\n";
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627 $res.="/Differences \n[";
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629 foreach($o['info']['differences'] as $num=>$label){
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630 if ($num!=$onum+1){
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631 // we cannot make use of consecutive numbering
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632 $res.= "\n".$num." /".$label;
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634 $res.= " /".$label;
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638 $res.="\n]\n>>\nendobj";
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645 * the document procset, solves some problems with printing to old PS printers
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647 function o_procset($id,$action,$options=''){
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648 if ($action!='new'){
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649 $o =& $this->objects[$id];
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653 $this->objects[$id]=array('t'=>'procset','info'=>array('PDF'=>1,'Text'=>1));
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654 $this->o_pages($this->currentNode,'procset',$id);
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655 $this->procsetObjectId=$id;
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658 // this is to add new items to the procset list, despite the fact that this is considered
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659 // obselete, the items are required for printing to some postscript printers
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660 switch ($options) {
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664 $o['info'][$options]=1;
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669 $res="\n".$id." 0 obj\n[";
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670 foreach ($o['info'] as $label=>$val){
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671 $res.='/'.$label.' ';
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680 * define the document information
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682 function o_info($id,$action,$options=''){
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683 if ($action!='new'){
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684 $o =& $this->objects[$id];
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688 $this->infoObject=$id;
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689 $date='D:'.date('Ymd');
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690 $this->objects[$id]=array('t'=>'info','info'=>array('Creator'=>'R and OS php pdf writer, http://www.ros.co.nz','CreationDate'=>$date));
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698 case 'CreationDate':
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701 $o['info'][$action]=$options;
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704 if ($this->encrypted){
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705 $this->encryptInit($id);
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707 $res="\n".$id." 0 obj\n<<\n";
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708 foreach ($o['info'] as $k=>$v){
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710 if ($this->encrypted){
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711 $res.=$this->filterText($this->ARC4($v));
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713 $res.=$this->filterText($v);
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717 $res.=">>\nendobj";
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724 * an action object, used to link to URLS initially
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726 function o_action($id,$action,$options=''){
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727 if ($action!='new'){
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728 $o =& $this->objects[$id];
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732 if (is_array($options)){
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733 $this->objects[$id]=array('t'=>'action','info'=>$options,'type'=>$options['type']);
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735 // then assume a URI action
\r
736 $this->objects[$id]=array('t'=>'action','info'=>$options,'type'=>'URI');
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740 if ($this->encrypted){
\r
741 $this->encryptInit($id);
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743 $res="\n".$id." 0 obj\n<< /Type /Action";
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744 switch($o['type']){
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746 // there will be an 'label' setting, this is the name of the destination
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747 $res.="\n/S /GoTo\n/D ".$this->destinations[(string)$o['info']['label']]." 0 R";
\r
750 $res.="\n/S /URI\n/URI (";
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751 if ($this->encrypted){
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752 $res.=$this->filterText($this->ARC4($o['info']));
\r
754 $res.=$this->filterText($o['info']);
\r
759 $res.="\n>>\nendobj";
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766 * an annotation object, this will add an annotation to the current page.
\r
767 * initially will support just link annotations
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769 function o_annotation($id,$action,$options=''){
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770 if ($action!='new'){
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771 $o =& $this->objects[$id];
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775 // add the annotation to the current page
\r
776 $pageId = $this->currentPage;
\r
777 $this->o_page($pageId,'annot',$id);
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778 // and add the action object which is going to be required
\r
779 switch($options['type']){
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781 $this->objects[$id]=array('t'=>'annotation','info'=>$options);
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783 $this->o_action($this->numObj,'new',$options['url']);
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784 $this->objects[$id]['info']['actionId']=$this->numObj;
\r
787 // this is to a named internal link
\r
788 $label = $options['label'];
\r
789 $this->objects[$id]=array('t'=>'annotation','info'=>$options);
\r
791 $this->o_action($this->numObj,'new',array('type'=>'ilink','label'=>$label));
\r
792 $this->objects[$id]['info']['actionId']=$this->numObj;
\r
797 $res="\n".$id." 0 obj\n<< /Type /Annot";
\r
798 switch($o['info']['type']){
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801 $res.= "\n/Subtype /Link";
\r
804 $res.="\n/A ".$o['info']['actionId']." 0 R";
\r
805 $res.="\n/Border [0 0 0]";
\r
807 $res.="\n/Rect [ ";
\r
808 foreach($o['info']['rect'] as $v){
\r
809 $res.= sprintf("%.4f ",$v);
\r
812 $res.="\n>>\nendobj";
\r
819 * a page object, it also creates a contents object to hold its contents
\r
821 function o_page($id,$action,$options=''){
\r
822 if ($action!='new'){
\r
823 $o =& $this->objects[$id];
\r
828 $this->objects[$id]=array('t'=>'page','info'=>array('parent'=>$this->currentNode,'pageNum'=>$this->numPages));
\r
829 if (is_array($options)){
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830 // then this must be a page insertion, array shoudl contain 'rid','pos'=[before|after]
\r
831 $options['id']=$id;
\r
832 $this->o_pages($this->currentNode,'page',$options);
\r
834 $this->o_pages($this->currentNode,'page',$id);
\r
836 $this->currentPage=$id;
\r
837 //make a contents object to go with this page
\r
839 $this->o_contents($this->numObj,'new',$id);
\r
840 $this->currentContents=$this->numObj;
\r
841 $this->objects[$id]['info']['contents']=array();
\r
842 $this->objects[$id]['info']['contents'][]=$this->numObj;
\r
843 $match = ($this->numPages%2 ? 'odd' : 'even');
\r
844 foreach($this->addLooseObjects as $oId=>$target){
\r
845 if ($target=='all' || $match==$target){
\r
846 $this->objects[$id]['info']['contents'][]=$oId;
\r
851 $o['info']['contents'][]=$options;
\r
854 // add an annotation to this page
\r
855 if (!isset($o['info']['annot'])){
\r
856 $o['info']['annot']=array();
\r
858 // $options should contain the id of the annotation dictionary
\r
859 $o['info']['annot'][]=$options;
\r
862 $res="\n".$id." 0 obj\n<< /Type /Page";
\r
863 $res.="\n/Parent ".$o['info']['parent']." 0 R";
\r
864 if (isset($o['info']['annot'])){
\r
865 $res.="\n/Annots [";
\r
866 foreach($o['info']['annot'] as $aId){
\r
867 $res.=" ".$aId." 0 R";
\r
871 $count = count($o['info']['contents']);
\r
873 $res.="\n/Contents ".$o['info']['contents'][0]." 0 R";
\r
874 } else if ($count>1){
\r
875 $res.="\n/Contents [\n";
\r
876 foreach ($o['info']['contents'] as $cId){
\r
877 $res.=$cId." 0 R\n";
\r
881 $res.="\n>>\nendobj";
\r
888 * the contents objects hold all of the content which appears on pages
\r
890 function o_contents($id,$action,$options=''){
\r
891 if ($action!='new'){
\r
892 $o =& $this->objects[$id];
\r
896 $this->objects[$id]=array('t'=>'contents','c'=>'','info'=>array());
\r
897 if (strlen($options) && intval($options)){
\r
898 // then this contents is the primary for a page
\r
899 $this->objects[$id]['onPage']=$options;
\r
900 } else if ($options=='raw'){
\r
901 // then this page contains some other type of system object
\r
902 $this->objects[$id]['raw']=1;
\r
906 // add more options to the decleration
\r
907 foreach ($options as $k=>$v){
\r
912 $res= "\n".$id." 0 obj\n";
\r
913 if (isset($this->objects[$id]['raw'])){
\r
917 if (function_exists('gzcompress') && $this->options['compression']){
\r
918 // then implement ZLIB based compression on this content stream
\r
919 $res.=" /Filter /FlateDecode";
\r
920 $tmp = gzcompress($tmp);
\r
922 if ($this->encrypted){
\r
923 $this->encryptInit($id);
\r
924 $tmp = $this->ARC4($tmp);
\r
926 foreach($o['info'] as $k=>$v){
\r
927 $res .= "\n/".$k.' '.$v;
\r
929 $res.="\n/Length ".strlen($tmp)." >>\nstream\n".$tmp."\nendstream";
\r
931 $res.="\nendobj\n";
\r
938 * an image object, will be an XObject in the document, includes description and data
\r
940 function o_image($id,$action,$options=''){
\r
941 if ($action!='new'){
\r
942 $o =& $this->objects[$id];
\r
946 // make the new object
\r
947 $this->objects[$id]=array('t'=>'image','data'=>$options['data'],'info'=>array());
\r
948 $this->objects[$id]['info']['Type']='/XObject';
\r
949 $this->objects[$id]['info']['Subtype']='/Image';
\r
950 $this->objects[$id]['info']['Width']=$options['iw'];
\r
951 $this->objects[$id]['info']['Height']=$options['ih'];
\r
952 if (!isset($options['type']) || $options['type']=='jpg'){
\r
953 if (!isset($options['channels'])){
\r
954 $options['channels']=3;
\r
956 switch($options['channels']){
\r
958 $this->objects[$id]['info']['ColorSpace']='/DeviceGray';
\r
961 $this->objects[$id]['info']['ColorSpace']='/DeviceRGB';
\r
964 $this->objects[$id]['info']['Filter']='/DCTDecode';
\r
965 $this->objects[$id]['info']['BitsPerComponent']=8;
\r
966 } else if ($options['type']=='png'){
\r
967 $this->objects[$id]['info']['Filter']='/FlateDecode';
\r
968 $this->objects[$id]['info']['DecodeParms']='<< /Predictor 15 /Colors '.$options['ncolor'].' /Columns '.$options['iw'].' /BitsPerComponent '.$options['bitsPerComponent'].'>>';
\r
969 if (strlen($options['pdata'])){
\r
970 $tmp = ' [ /Indexed /DeviceRGB '.(strlen($options['pdata'])/3-1).' ';
\r
972 $this->o_contents($this->numObj,'new');
\r
973 $this->objects[$this->numObj]['c']=$options['pdata'];
\r
974 $tmp.=$this->numObj.' 0 R';
\r
976 $this->objects[$id]['info']['ColorSpace'] = $tmp;
\r
977 if (isset($options['transparency'])){
\r
978 switch($options['transparency']['type']){
\r
980 $tmp=' [ '.$options['transparency']['data'].' '.$options['transparency']['data'].'] ';
\r
981 $this->objects[$id]['info']['Mask'] = $tmp;
\r
986 $this->objects[$id]['info']['ColorSpace']='/'.$options['color'];
\r
988 $this->objects[$id]['info']['BitsPerComponent']=$options['bitsPerComponent'];
\r
990 // assign it a place in the named resource dictionary as an external object, according to
\r
991 // the label passed in with it.
\r
992 $this->o_pages($this->currentNode,'xObject',array('label'=>$options['label'],'objNum'=>$id));
\r
993 // also make sure that we have the right procset object for it.
\r
994 $this->o_procset($this->procsetObjectId,'add','ImageC');
\r
998 $res= "\n".$id." 0 obj\n<<";
\r
999 foreach($o['info'] as $k=>$v){
\r
1000 $res.="\n/".$k.' '.$v;
\r
1002 if ($this->encrypted){
\r
1003 $this->encryptInit($id);
\r
1004 $tmp = $this->ARC4($tmp);
\r
1006 $res.="\n/Length ".strlen($tmp)." >>\nstream\n".$tmp."\nendstream\nendobj\n";
\r
1013 * encryption object.
\r
1015 function o_encryption($id,$action,$options=''){
\r
1016 if ($action!='new'){
\r
1017 $o =& $this->objects[$id];
\r
1021 // make the new object
\r
1022 $this->objects[$id]=array('t'=>'encryption','info'=>$options);
\r
1023 $this->arc4_objnum=$id;
\r
1024 // figure out the additional paramaters required
\r
1025 $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);
\r
1026 $len = strlen($options['owner']);
\r
1028 $owner = substr($options['owner'],0,32);
\r
1029 } else if ($len<32){
\r
1030 $owner = $options['owner'].substr($pad,0,32-$len);
\r
1032 $owner = $options['owner'];
\r
1034 $len = strlen($options['user']);
\r
1036 $user = substr($options['user'],0,32);
\r
1037 } else if ($len<32){
\r
1038 $user = $options['user'].substr($pad,0,32-$len);
\r
1040 $user = $options['user'];
\r
1042 $tmp = $this->md5_16($owner);
\r
1043 $okey = substr($tmp,0,5);
\r
1044 $this->ARC4_init($okey);
\r
1045 $ovalue=$this->ARC4($user);
\r
1046 $this->objects[$id]['info']['O']=$ovalue;
\r
1047 // now make the u value, phew.
\r
1048 $tmp = $this->md5_16($user.$ovalue.chr($options['p']).chr(255).chr(255).chr(255).$this->fileIdentifier);
\r
1049 $ukey = substr($tmp,0,5);
\r
1051 $this->ARC4_init($ukey);
\r
1052 $this->encryptionKey = $ukey;
\r
1053 $this->encrypted=1;
\r
1054 $uvalue=$this->ARC4($pad);
\r
1056 $this->objects[$id]['info']['U']=$uvalue;
\r
1057 $this->encryptionKey=$ukey;
\r
1059 // initialize the arc4 array
\r
1062 $res= "\n".$id." 0 obj\n<<";
\r
1063 $res.="\n/Filter /Standard";
\r
1066 $res.="\n/O (".$this->filterText($o['info']['O']).')';
\r
1067 $res.="\n/U (".$this->filterText($o['info']['U']).')';
\r
1068 // and the p-value needs to be converted to account for the twos-complement approach
\r
1069 $o['info']['p'] = (($o['info']['p']^255)+1)*-1;
\r
1070 $res.="\n/P ".($o['info']['p']);
\r
1071 $res.="\n>>\nendobj\n";
\r
1080 * A series of function to implement ARC4 encoding in PHP
\r
1084 * calculate the 16 byte version of the 128 bit md5 digest of the string
\r
1086 function md5_16($string){
\r
1087 $tmp = md5($string);
\r
1089 for ($i=0;$i<=30;$i=$i+2){
\r
1090 $out.=chr(hexdec(substr($tmp,$i,2)));
\r
1096 * initialize the encryption for processing a particular object
\r
1098 function encryptInit($id){
\r
1099 $tmp = $this->encryptionKey;
\r
1100 $hex = dechex($id);
\r
1101 if (strlen($hex)<6){
\r
1102 $hex = substr('000000',0,6-strlen($hex)).$hex;
\r
1104 $tmp.= chr(hexdec(substr($hex,4,2))).chr(hexdec(substr($hex,2,2))).chr(hexdec(substr($hex,0,2))).chr(0).chr(0);
\r
1105 $key = $this->md5_16($tmp);
\r
1106 $this->ARC4_init(substr($key,0,10));
\r
1110 * initialize the ARC4 encryption
\r
1112 function ARC4_init($key=''){
\r
1114 // setup the control array
\r
1115 if (strlen($key)==0){
\r
1119 while(strlen($k)<256){
\r
1122 $k=substr($k,0,256);
\r
1123 for ($i=0;$i<256;$i++){
\r
1124 $this->arc4 .= chr($i);
\r
1127 for ($i=0;$i<256;$i++){
\r
1128 $t = $this->arc4[$i];
\r
1129 $j = ($j + ord($t) + ord($k[$i]))%256;
\r
1130 $this->arc4[$i]=$this->arc4[$j];
\r
1131 $this->arc4[$j]=$t;
\r
1136 * ARC4 encrypt a text string
\r
1138 function ARC4($text){
\r
1139 $len=strlen($text);
\r
1144 for ($i=0;$i<$len;$i++){
\r
1147 $b = ($b+ord($t))%256;
\r
1150 $k = ord($c[(ord($c[$a])+ord($c[$b]))%256]);
\r
1151 $out.=chr(ord($text[$i]) ^ $k);
\r
1158 * functions which can be called to adjust or add to the document
\r
1162 * add a link in the document to an external URL
\r
1164 function addLink($url,$x0,$y0,$x1,$y1){
\r
1166 $info = array('type'=>'link','url'=>$url,'rect'=>array($x0,$y0,$x1,$y1));
\r
1167 $this->o_annotation($this->numObj,'new',$info);
\r
1171 * add a link in the document to an internal destination (ie. within the document)
\r
1173 function addInternalLink($label,$x0,$y0,$x1,$y1){
\r
1175 $info = array('type'=>'ilink','label'=>$label,'rect'=>array($x0,$y0,$x1,$y1));
\r
1176 $this->o_annotation($this->numObj,'new',$info);
\r
1180 * set the encryption of the document
\r
1181 * can be used to turn it on and/or set the passwords which it will have.
\r
1182 * also the functions that the user will have are set here, such as print, modify, add
\r
1184 function setEncryption($userPass='',$ownerPass='',$pc=array()){
\r
1185 $p=bindec(11000000);
\r
1193 foreach($pc as $k=>$v){
\r
1194 if ($v && isset($options[$k])){
\r
1196 } else if (isset($options[$v])){
\r
1200 // implement encryption on the document
\r
1201 if ($this->arc4_objnum == 0){
\r
1202 // then the block does not exist already, add it.
\r
1204 if (strlen($ownerPass)==0){
\r
1205 $ownerPass=$userPass;
\r
1207 $this->o_encryption($this->numObj,'new',array('user'=>$userPass,'owner'=>$ownerPass,'p'=>$p));
\r
1212 * should be used for internal checks, not implemented as yet
\r
1214 function checkAllHere(){
\r
1218 * return the pdf stream as a string returned from the function
\r
1220 function output($debug=0){
\r
1223 // turn compression off
\r
1224 $this->options['compression']=0;
\r
1227 if ($this->arc4_objnum){
\r
1228 $this->ARC4_init($this->encryptionKey);
\r
1231 $this->checkAllHere();
\r
1234 $content="%PDF-1.3\n%����\n";
\r
1235 // $content="%PDF-1.3\n";
\r
1236 $pos=strlen($content);
\r
1237 foreach($this->objects as $k=>$v){
\r
1238 $tmp='o_'.$v['t'];
\r
1239 $cont=$this->$tmp($k,'out');
\r
1242 $pos+=strlen($cont);
\r
1244 $content.="\nxref\n0 ".(count($xref)+1)."\n0000000000 65535 f \n";
\r
1245 foreach($xref as $p){
\r
1246 $content.=substr('0000000000',0,10-strlen($p)).$p." 00000 n \n";
\r
1248 $content.="\ntrailer\n << /Size ".(count($xref)+1)."\n /Root 1 0 R\n /Info ".$this->infoObject." 0 R\n";
\r
1249 // if encryption has been applied to this document then add the marker for this dictionary
\r
1250 if ($this->arc4_objnum > 0){
\r
1251 $content .= "/Encrypt ".$this->arc4_objnum." 0 R\n";
\r
1253 if (strlen($this->fileIdentifier)){
\r
1254 $content .= "/ID[<".$this->fileIdentifier."><".$this->fileIdentifier.">]\n";
\r
1256 $content .= " >>\nstartxref\n".$pos."\n%%EOF\n";
\r
1261 * intialize a new document
\r
1262 * if this is called on an existing document results may be unpredictable, but the existing document would be lost at minimum
\r
1263 * this function is called automatically by the constructor function
\r
1267 function newDocument($pageSize=array(0,0,612,792)){
\r
1269 $this->objects = array();
\r
1272 $this->o_catalog($this->numObj,'new');
\r
1275 $this->o_outlines($this->numObj,'new');
\r
1278 $this->o_pages($this->numObj,'new');
\r
1280 $this->o_pages($this->numObj,'mediaBox',$pageSize);
\r
1281 $this->currentNode = 3;
\r
1284 $this->o_procset($this->numObj,'new');
\r
1287 $this->o_info($this->numObj,'new');
\r
1290 $this->o_page($this->numObj,'new');
\r
1292 // need to store the first page id as there is no way to get it to the user during
\r
1294 $this->firstPageId = $this->currentContents;
\r
1298 * open the font file and return a php structure containing it.
\r
1299 * first check if this one has been done before and saved in a form more suited to php
\r
1300 * note that if a php serialized version does not exist it will try and make one, but will
\r
1301 * require write access to the directory to do it... it is MUCH faster to have these serialized
\r
1306 function openFont($font){
\r
1307 // assume that $font contains both the path and perhaps the extension to the file, split them
\r
1308 $pos=strrpos($font,'/');
\r
1309 if ($pos===false){
\r
1310 $dir = './media/';
\r
1313 //$dir=substr($font,0,$pos+1);
\r
1315 $name=substr($font,$pos+1);
\r
1318 if (substr($name,-4)=='.afm'){
\r
1319 $name=substr($name,0,strlen($name)-4);
\r
1321 $this->addMessage('openFont: '.$font.' - '.$name);
\r
1322 if (file_exists($dir.'php_'.$name.'.afm')){
\r
1323 $this->addMessage('openFont: php file exists '.$dir.'php_'.$name.'.afm');
\r
1324 $tmp = file($dir.'php_'.$name.'.afm');
\r
1325 $this->fonts[$font]=unserialize($tmp[0]);
\r
1326 if (!isset($this->fonts[$font]['_version_']) || $this->fonts[$font]['_version_']<1){
\r
1327 // if the font file is old, then clear it out and prepare for re-creation
\r
1328 $this->addMessage('openFont: clear out, make way for new version.');
\r
1329 unset($this->fonts[$font]);
\r
1332 if (!isset($this->fonts[$font]) && file_exists($dir.$name.'.afm')){
\r
1333 // then rebuild the php_<font>.afm file from the <font>.afm file
\r
1334 $this->addMessage('openFont: build php file from '.$dir.$name.'.afm');
\r
1336 $file = file($dir.$name.'.afm');
\r
1337 foreach ($file as $rowA){
\r
1339 $pos=strpos($row,' ');
\r
1341 // then there must be some keyword
\r
1342 $key = substr($row,0,$pos);
\r
1346 case 'FamilyName':
\r
1348 case 'ItalicAngle':
\r
1349 case 'IsFixedPitch':
\r
1350 case 'CharacterSet':
\r
1351 case 'UnderlinePosition':
\r
1352 case 'UnderlineThickness':
\r
1354 case 'EncodingScheme':
\r
1361 case 'StartCharMetrics':
\r
1362 $data[$key]=trim(substr($row,$pos));
\r
1365 $data[$key]=explode(' ',trim(substr($row,$pos)));
\r
1368 //C 39 ; WX 222 ; N quoteright ; B 53 463 157 718 ;
\r
1369 $bits=explode(';',trim($row));
\r
1371 foreach($bits as $bit){
\r
1372 $bits2 = explode(' ',trim($bit));
\r
1373 if (strlen($bits2[0])){
\r
1374 if (count($bits2)>2){
\r
1375 $dtmp[$bits2[0]]=array();
\r
1376 for ($i=1;$i<count($bits2);$i++){
\r
1377 $dtmp[$bits2[0]][]=$bits2[$i];
\r
1379 } else if (count($bits2)==2){
\r
1380 $dtmp[$bits2[0]]=$bits2[1];
\r
1384 if ($dtmp['C']>=0){
\r
1385 $data['C'][$dtmp['C']]=$dtmp;
\r
1386 $data['C'][$dtmp['N']]=$dtmp;
\r
1388 $data['C'][$dtmp['N']]=$dtmp;
\r
1392 //KPX Adieresis yacute -40
\r
1393 $bits=explode(' ',trim($row));
\r
1394 $data['KPX'][$bits[1]][$bits[2]]=$bits[3];
\r
1399 $data['_version_']=1;
\r
1400 $this->fonts[$font]=$data;
\r
1401 $fp = @fopen($dir.'php_'.$name.'.afm','w') or die ("Please make sure your \"media\" directory is writeable (CHMOD 777).");
\r
1402 fwrite($fp,serialize($data));
\r
1404 mosChmod($dir.'php_'.$name.'.afm');
\r
1405 } else if (!isset($this->fonts[$font])){
\r
1406 $this->addMessage('openFont: no font file found');
\r
1407 // echo 'Font not Found '.$font;
\r
1412 * if the font is not loaded then load it and make the required object
\r
1413 * else just make it the current font
\r
1414 * the encoding array can contain 'encoding'=> 'none','WinAnsiEncoding','MacRomanEncoding' or 'MacExpertEncoding'
\r
1415 * note that encoding='none' will need to be used for symbolic fonts
\r
1416 * and 'differences' => an array of mappings between numbers 0->255 and character names.
\r
1419 function selectFont($fontName,$encoding='',$set=1){
\r
1420 if (!isset($this->fonts[$fontName])){
\r
1422 $this->openFont($fontName);
\r
1423 if (isset($this->fonts[$fontName])){
\r
1425 $this->numFonts++;
\r
1426 $pos=strrpos($fontName,'/');
\r
1427 // $dir=substr($fontName,0,$pos+1);
\r
1428 $name=substr($fontName,$pos+1);
\r
1429 if (substr($name,-4)=='.afm'){
\r
1430 $name=substr($name,0,strlen($name)-4);
\r
1432 $options=array('name'=>$name);
\r
1433 if (is_array($encoding)){
\r
1434 // then encoding and differences might be set
\r
1435 if (isset($encoding['encoding'])){
\r
1436 $options['encoding']=$encoding['encoding'];
\r
1438 if (isset($encoding['differences'])){
\r
1439 $options['differences']=$encoding['differences'];
\r
1441 } else if (strlen($encoding)){
\r
1442 // then perhaps only the encoding has been set
\r
1443 $options['encoding']=$encoding;
\r
1445 $fontObj = $this->numObj;
\r
1446 $this->o_font($this->numObj,'new',$options);
\r
1447 $this->fonts[$fontName]['fontNum']=$this->numFonts;
\r
1448 // if this is a '.afm' font, and there is a '.pfa' file to go with it ( as there
\r
1449 // should be for all non-basic fonts), then load it into an object and put the
\r
1450 // references into the font object
\r
1451 $basefile = substr($fontName,0,strlen($fontName)-4);
\r
1452 if (file_exists($basefile.'.pfb')){
\r
1454 } else if (file_exists($basefile.'.ttf')){
\r
1459 $fbfile = $basefile.'.'.$fbtype;
\r
1461 // $pfbfile = substr($fontName,0,strlen($fontName)-4).'.pfb';
\r
1462 // $ttffile = substr($fontName,0,strlen($fontName)-4).'.ttf';
\r
1463 $this->addMessage('selectFont: checking for - '.$fbfile);
\r
1464 if (substr($fontName,-4)=='.afm' && strlen($fbtype) ){
\r
1465 $adobeFontName = $this->fonts[$fontName]['FontName'];
\r
1466 // $fontObj = $this->numObj;
\r
1467 $this->addMessage('selectFont: adding font file - '.$fbfile.' - '.$adobeFontName);
\r
1468 // find the array of fond widths, and put that into an object.
\r
1471 $widths = array();
\r
1472 foreach ($this->fonts[$fontName]['C'] as $num=>$d){
\r
1473 if (intval($num)>0 || $num=='0'){
\r
1474 if ($lastChar>0 && $num>$lastChar+1){
\r
1475 for($i=$lastChar+1;$i<$num;$i++){
\r
1479 $widths[] = $d['WX'];
\r
1480 if ($firstChar==-1){
\r
1481 $firstChar = $num;
\r
1486 // also need to adjust the widths for the differences array
\r
1487 if (isset($options['differences'])){
\r
1488 foreach($options['differences'] as $charNum=>$charName){
\r
1489 if ($charNum>$lastChar){
\r
1490 for($i=$lastChar+1;$i<=$charNum;$i++){
\r
1493 $lastChar=$charNum;
\r
1495 if (isset($this->fonts[$fontName]['C'][$charName])){
\r
1496 $widths[$charNum-$firstChar]=$this->fonts[$fontName]['C'][$charName]['WX'];
\r
1500 $this->addMessage('selectFont: FirstChar='.$firstChar);
\r
1501 $this->addMessage('selectFont: LastChar='.$lastChar);
\r
1503 $this->o_contents($this->numObj,'new','raw');
\r
1504 $this->objects[$this->numObj]['c'].='[';
\r
1505 foreach($widths as $width){
\r
1506 $this->objects[$this->numObj]['c'].=' '.$width;
\r
1508 $this->objects[$this->numObj]['c'].=' ]';
\r
1509 $widthid = $this->numObj;
\r
1511 // load the pfb file, and put that into an object too.
\r
1512 // note that pdf supports only binary format type 1 font files, though there is a
\r
1513 // simple utility to convert them from pfa to pfb.
\r
1514 $fp = fopen($fbfile,'rb');
\r
1515 $tmp = get_magic_quotes_runtime();
\r
1516 set_magic_quotes_runtime(0);
\r
1517 $data = fread($fp,filesize($fbfile));
\r
1518 set_magic_quotes_runtime($tmp);
\r
1521 // create the font descriptor
\r
1523 $fontDescriptorId = $this->numObj;
\r
1525 $pfbid = $this->numObj;
\r
1526 // determine flags (more than a little flakey, hopefully will not matter much)
\r
1528 if ($this->fonts[$fontName]['ItalicAngle']!=0){ $flags+=pow(2,6); }
\r
1529 if ($this->fonts[$fontName]['IsFixedPitch']=='true'){ $flags+=1; }
\r
1530 $flags+=pow(2,5); // assume non-sybolic
\r
1532 $list = array('Ascent'=>'Ascender','CapHeight'=>'CapHeight','Descent'=>'Descender','FontBBox'=>'FontBBox','ItalicAngle'=>'ItalicAngle');
\r
1535 ,'FontName'=>$adobeFontName
\r
1536 ,'StemV'=>100 // don't know what the value for this should be!
\r
1538 foreach($list as $k=>$v){
\r
1539 if (isset($this->fonts[$fontName][$v])){
\r
1540 $fdopt[$k]=$this->fonts[$fontName][$v];
\r
1544 if ($fbtype=='pfb'){
\r
1545 $fdopt['FontFile']=$pfbid;
\r
1546 } else if ($fbtype=='ttf'){
\r
1547 $fdopt['FontFile2']=$pfbid;
\r
1549 $this->o_fontDescriptor($fontDescriptorId,'new',$fdopt);
\r
1551 // embed the font program
\r
1552 $this->o_contents($this->numObj,'new');
\r
1553 $this->objects[$pfbid]['c'].=$data;
\r
1554 // determine the cruicial lengths within this file
\r
1555 if ($fbtype=='pfb'){
\r
1556 $l1 = strpos($data,'eexec')+6;
\r
1557 $l2 = strpos($data,'00000000')-$l1;
\r
1558 $l3 = strlen($data)-$l2-$l1;
\r
1559 $this->o_contents($this->numObj,'add',array('Length1'=>$l1,'Length2'=>$l2,'Length3'=>$l3));
\r
1560 } else if ($fbtype=='ttf'){
\r
1561 $l1 = strlen($data);
\r
1562 $this->o_contents($this->numObj,'add',array('Length1'=>$l1));
\r
1566 // tell the font object about all this new stuff
\r
1567 $tmp = array('BaseFont'=>$adobeFontName,'Widths'=>$widthid
\r
1568 ,'FirstChar'=>$firstChar,'LastChar'=>$lastChar
\r
1569 ,'FontDescriptor'=>$fontDescriptorId);
\r
1570 if ($fbtype=='ttf'){
\r
1571 $tmp['SubType']='TrueType';
\r
1573 $this->addMessage('adding extra info to font.('.$fontObj.')');
\r
1574 foreach($tmp as $fk=>$fv){
\r
1575 $this->addMessage($fk." : ".$fv);
\r
1577 $this->o_font($fontObj,'add',$tmp);
\r
1580 $this->addMessage('selectFont: pfb or ttf file not found, ok if this is one of the 14 standard fonts');
\r
1584 // also set the differences here, note that this means that these will take effect only the
\r
1585 //first time that a font is selected, else they are ignored
\r
1586 if (isset($options['differences'])){
\r
1587 $this->fonts[$fontName]['differences']=$options['differences'];
\r
1591 if ($set && isset($this->fonts[$fontName])){
\r
1592 // so if for some reason the font was not set in the last one then it will not be selected
\r
1593 $this->currentBaseFont=$fontName;
\r
1594 // the next line means that if a new font is selected, then the current text state will be
\r
1595 // applied to it as well.
\r
1596 $this->setCurrentFont();
\r
1598 return $this->currentFontNum;
\r
1602 * sets up the current font, based on the font families, and the current text state
\r
1603 * note that this system is quite flexible, a <b><i> font can be completely different to a
\r
1604 * <i><b> font, and even <b><b> will have to be defined within the family to have meaning
\r
1605 * This function is to be called whenever the currentTextState is changed, it will update
\r
1606 * the currentFont setting to whatever the appropriatte family one is.
\r
1607 * If the user calls selectFont themselves then that will reset the currentBaseFont, and the currentFont
\r
1608 * This function will change the currentFont to whatever it should be, but will not change the
\r
1609 * currentBaseFont.
\r
1613 function setCurrentFont(){
\r
1614 if (strlen($this->currentBaseFont)==0){
\r
1615 // then assume an initial font
\r
1616 $this->selectFont('./fonts/Helvetica.afm');
\r
1618 $cf = substr($this->currentBaseFont,strrpos($this->currentBaseFont,'/')+1);
\r
1619 if (strlen($this->currentTextState)
\r
1620 && isset($this->fontFamilies[$cf])
\r
1621 && isset($this->fontFamilies[$cf][$this->currentTextState])){
\r
1622 // then we are in some state or another
\r
1623 // and this font has a family, and the current setting exists within it
\r
1624 // select the font, then return it
\r
1625 $nf = substr($this->currentBaseFont,0,strrpos($this->currentBaseFont,'/')+1).$this->fontFamilies[$cf][$this->currentTextState];
\r
1626 $this->selectFont($nf,'',0);
\r
1627 $this->currentFont = $nf;
\r
1628 $this->currentFontNum = $this->fonts[$nf]['fontNum'];
\r
1630 // the this font must not have the right family member for the current state
\r
1631 // simply assume the base font
\r
1632 $this->currentFont = $this->currentBaseFont;
\r
1633 $this->currentFontNum = $this->fonts[$this->currentFont]['fontNum'];
\r
1638 * function for the user to find out what the ID is of the first page that was created during
\r
1639 * startup - useful if they wish to add something to it later.
\r
1641 function getFirstPageId(){
\r
1642 return $this->firstPageId;
\r
1646 * add content to the currently active object
\r
1650 function addContent($content){
\r
1651 $this->objects[$this->currentContents]['c'].=$content;
\r
1655 * sets the colour for fill operations
\r
1657 function setColor($r,$g,$b,$force=0){
\r
1658 if ($r>=0 && ($force || $r!=$this->currentColour['r'] || $g!=$this->currentColour['g'] || $b!=$this->currentColour['b'])){
\r
1659 $this->objects[$this->currentContents]['c'].="\n".sprintf('%.3f',$r).' '.sprintf('%.3f',$g).' '.sprintf('%.3f',$b).' rg';
\r
1660 $this->currentColour=array('r'=>$r,'g'=>$g,'b'=>$b);
\r
1665 * sets the colour for stroke operations
\r
1667 function setStrokeColor($r,$g,$b,$force=0){
\r
1668 if ($r>=0 && ($force || $r!=$this->currentStrokeColour['r'] || $g!=$this->currentStrokeColour['g'] || $b!=$this->currentStrokeColour['b'])){
\r
1669 $this->objects[$this->currentContents]['c'].="\n".sprintf('%.3f',$r).' '.sprintf('%.3f',$g).' '.sprintf('%.3f',$b).' RG';
\r
1670 $this->currentStrokeColour=array('r'=>$r,'g'=>$g,'b'=>$b);
\r
1675 * draw a line from one set of coordinates to another
\r
1677 function line($x1,$y1,$x2,$y2){
\r
1678 $this->objects[$this->currentContents]['c'].="\n".sprintf('%.3f',$x1).' '.sprintf('%.3f',$y1).' m '.sprintf('%.3f',$x2).' '.sprintf('%.3f',$y2).' l S';
\r
1682 * draw a bezier curve based on 4 control points
\r
1684 function curve($x0,$y0,$x1,$y1,$x2,$y2,$x3,$y3){
\r
1685 // in the current line style, draw a bezier curve from (x0,y0) to (x3,y3) using the other two points
\r
1686 // as the control points for the curve.
\r
1687 $this->objects[$this->currentContents]['c'].="\n".sprintf('%.3f',$x0).' '.sprintf('%.3f',$y0).' m '.sprintf('%.3f',$x1).' '.sprintf('%.3f',$y1);
\r
1688 $this->objects[$this->currentContents]['c'].= ' '.sprintf('%.3f',$x2).' '.sprintf('%.3f',$y2).' '.sprintf('%.3f',$x3).' '.sprintf('%.3f',$y3).' c S';
\r
1692 * draw a part of an ellipse
\r
1694 function partEllipse($x0,$y0,$astart,$afinish,$r1,$r2=0,$angle=0,$nSeg=8){
\r
1695 $this->ellipse($x0,$y0,$r1,$r2,$angle,$nSeg,$astart,$afinish,0);
\r
1699 * draw a filled ellipse
\r
1701 function filledEllipse($x0,$y0,$r1,$r2=0,$angle=0,$nSeg=8,$astart=0,$afinish=360){
\r
1702 return $this->ellipse($x0,$y0,$r1,$r2=0,$angle,$nSeg,$astart,$afinish,1,1);
\r
1707 * note that the part and filled ellipse are just special cases of this function
\r
1709 * draws an ellipse in the current line style
\r
1710 * centered at $x0,$y0, radii $r1,$r2
\r
1711 * if $r2 is not set, then a circle is drawn
\r
1712 * nSeg is not allowed to be less than 2, as this will simply draw a line (and will even draw a
\r
1713 * pretty crappy shape at 2, as we are approximating with bezier curves.
\r
1715 function ellipse($x0,$y0,$r1,$r2=0,$angle=0,$nSeg=8,$astart=0,$afinish=360,$close=1,$fill=0){
\r
1726 $astart = deg2rad((float)$astart);
\r
1727 $afinish = deg2rad((float)$afinish);
\r
1728 $totalAngle =$afinish-$astart;
\r
1730 $dt = $totalAngle/$nSeg;
\r
1734 $a = -1*deg2rad((float)$angle);
\r
1736 $tmp .= sprintf('%.3f',cos($a)).' '.sprintf('%.3f',(-1.0*sin($a))).' '.sprintf('%.3f',sin($a)).' '.sprintf('%.3f',cos($a)).' ';
\r
1737 $tmp .= sprintf('%.3f',$x0).' '.sprintf('%.3f',$y0).' cm';
\r
1738 $this->objects[$this->currentContents]['c'].= $tmp;
\r
1744 $a0 = $x0+$r1*cos($t1);
\r
1745 $b0 = $y0+$r2*sin($t1);
\r
1746 $c0 = -$r1*sin($t1);
\r
1747 $d0 = $r2*cos($t1);
\r
1749 $this->objects[$this->currentContents]['c'].="\n".sprintf('%.3f',$a0).' '.sprintf('%.3f',$b0).' m ';
\r
1750 for ($i=1;$i<=$nSeg;$i++){
\r
1751 // draw this bit of the total curve
\r
1752 $t1 = $i*$dt+$astart;
\r
1753 $a1 = $x0+$r1*cos($t1);
\r
1754 $b1 = $y0+$r2*sin($t1);
\r
1755 $c1 = -$r1*sin($t1);
\r
1756 $d1 = $r2*cos($t1);
\r
1757 $this->objects[$this->currentContents]['c'].="\n".sprintf('%.3f',($a0+$c0*$dtm)).' '.sprintf('%.3f',($b0+$d0*$dtm));
\r
1758 $this->objects[$this->currentContents]['c'].= ' '.sprintf('%.3f',($a1-$c1*$dtm)).' '.sprintf('%.3f',($b1-$d1*$dtm)).' '.sprintf('%.3f',$a1).' '.sprintf('%.3f',$b1).' c';
\r
1765 $this->objects[$this->currentContents]['c'].=' f';
\r
1768 $this->objects[$this->currentContents]['c'].=' s'; // small 's' signifies closing the path as well
\r
1770 $this->objects[$this->currentContents]['c'].=' S';
\r
1774 $this->objects[$this->currentContents]['c'].=' Q';
\r
1779 * this sets the line drawing style.
\r
1780 * width, is the thickness of the line in user units
\r
1781 * cap is the type of cap to put on the line, values can be 'butt','round','square'
\r
1782 * where the diffference between 'square' and 'butt' is that 'square' projects a flat end past the
\r
1783 * end of the line.
\r
1784 * join can be 'miter', 'round', 'bevel'
\r
1785 * dash is an array which sets the dash pattern, is a series of length values, which are the lengths of the
\r
1786 * on and off dashes.
\r
1787 * (2) represents 2 on, 2 off, 2 on , 2 off ...
\r
1788 * (2,1) is 2 on, 1 off, 2 on, 1 off.. etc
\r
1789 * phase is a modifier on the dash pattern which is used to shift the point at which the pattern starts.
\r
1791 function setLineStyle($width=1,$cap='',$join='',$dash='',$phase=0){
\r
1793 // this is quite inefficient in that it sets all the parameters whenever 1 is changed, but will fix another day
\r
1796 $string.= $width.' w';
\r
1798 $ca = array('butt'=>0,'round'=>1,'square'=>2);
\r
1799 if (isset($ca[$cap])){
\r
1800 $string.= ' '.$ca[$cap].' J';
\r
1802 $ja = array('miter'=>0,'round'=>1,'bevel'=>2);
\r
1803 if (isset($ja[$join])){
\r
1804 $string.= ' '.$ja[$join].' j';
\r
1806 if (is_array($dash)){
\r
1808 foreach ($dash as $len){
\r
1809 $string.=' '.$len;
\r
1811 $string.= ' ] '.$phase.' d';
\r
1813 $this->currentLineStyle = $string;
\r
1814 $this->objects[$this->currentContents]['c'].="\n".$string;
\r
1818 * draw a polygon, the syntax for this is similar to the GD polygon command
\r
1820 function polygon($p,$np,$f=0){
\r
1821 $this->objects[$this->currentContents]['c'].="\n";
\r
1822 $this->objects[$this->currentContents]['c'].=sprintf('%.3f',$p[0]).' '.sprintf('%.3f',$p[1]).' m ';
\r
1823 for ($i=2;$i<$np*2;$i=$i+2){
\r
1824 $this->objects[$this->currentContents]['c'].= sprintf('%.3f',$p[$i]).' '.sprintf('%.3f',$p[$i+1]).' l ';
\r
1827 $this->objects[$this->currentContents]['c'].=' f';
\r
1829 $this->objects[$this->currentContents]['c'].=' S';
\r
1834 * a filled rectangle, note that it is the width and height of the rectangle which are the secondary paramaters, not
\r
1835 * the coordinates of the upper-right corner
\r
1837 function filledRectangle($x1,$y1,$width,$height){
\r
1838 $this->objects[$this->currentContents]['c'].="\n".sprintf('%.3f',$x1).' '.sprintf('%.3f',$y1).' '.sprintf('%.3f',$width).' '.sprintf('%.3f',$height).' re f';
\r
1842 * draw a rectangle, note that it is the width and height of the rectangle which are the secondary paramaters, not
\r
1843 * the coordinates of the upper-right corner
\r
1845 function rectangle($x1,$y1,$width,$height){
\r
1846 $this->objects[$this->currentContents]['c'].="\n".sprintf('%.3f',$x1).' '.sprintf('%.3f',$y1).' '.sprintf('%.3f',$width).' '.sprintf('%.3f',$height).' re S';
\r
1850 * add a new page to the document
\r
1851 * this also makes the new page the current active object
\r
1853 function newPage($insert=0,$id=0,$pos='after'){
\r
1855 // if there is a state saved, then go up the stack closing them
\r
1856 // then on the new page, re-open them with the right setings
\r
1858 if ($this->nStateStack){
\r
1859 for ($i=$this->nStateStack;$i>=1;$i--){
\r
1860 $this->restoreState($i);
\r
1866 // the id from the ezPdf class is the od of the contents of the page, not the page object itself
\r
1867 // query that object to find the parent
\r
1868 $rid = $this->objects[$id]['onPage'];
\r
1869 $opt= array('rid'=>$rid,'pos'=>$pos);
\r
1870 $this->o_page($this->numObj,'new',$opt);
\r
1872 $this->o_page($this->numObj,'new');
\r
1874 // if there is a stack saved, then put that onto the page
\r
1875 if ($this->nStateStack){
\r
1876 for ($i=1;$i<=$this->nStateStack;$i++){
\r
1877 $this->saveState($i);
\r
1880 // and if there has been a stroke or fill colour set, then transfer them
\r
1881 if ($this->currentColour['r']>=0){
\r
1882 $this->setColor($this->currentColour['r'],$this->currentColour['g'],$this->currentColour['b'],1);
\r
1884 if ($this->currentStrokeColour['r']>=0){
\r
1885 $this->setStrokeColor($this->currentStrokeColour['r'],$this->currentStrokeColour['g'],$this->currentStrokeColour['b'],1);
\r
1888 // if there is a line style set, then put this in too
\r
1889 if (strlen($this->currentLineStyle)){
\r
1890 $this->objects[$this->currentContents]['c'].="\n".$this->currentLineStyle;
\r
1893 // the call to the o_page object set currentContents to the present page, so this can be returned as the page id
\r
1894 return $this->currentContents;
\r
1898 * output the pdf code, streaming it to the browser
\r
1899 * the relevant headers are set so that hopefully the browser will recognise it
\r
1901 function stream($options=''){
\r
1902 // setting the options allows the adjustment of the headers
\r
1903 // values at the moment are:
\r
1904 // 'Content-Disposition'=>'filename' - sets the filename, though not too sure how well this will
\r
1905 // work as in my trial the browser seems to use the filename of the php file with .pdf on the end
\r
1906 // 'Accept-Ranges'=>1 or 0 - if this is not set to 1, then this header is not included, off by default
\r
1907 // this header seems to have caused some problems despite tha fact that it is supposed to solve
\r
1908 // them, so I am leaving it off by default.
\r
1909 // 'compress'=> 1 or 0 - apply content stream compression, this is on (1) by default
\r
1910 if (!is_array($options)){
\r
1913 if ( isset($options['compress']) && $options['compress']==0){
\r
1914 $tmp = $this->output(1);
\r
1916 $tmp = $this->output();
\r
1918 header("Content-type: application/pdf");
\r
1919 header("Content-Length: ".strlen(ltrim($tmp)));
\r
1920 $fileName = (isset($options['Content-Disposition'])?$options['Content-Disposition']:'file.pdf');
\r
1921 header("Content-Disposition: inline; filename=".$fileName);
\r
1922 if (isset($options['Accept-Ranges']) && $options['Accept-Ranges']==1){
\r
1923 header("Accept-Ranges: ".strlen(ltrim($tmp)));
\r
1929 * return the height in units of the current font in the given size
\r
1931 function getFontHeight($size){
\r
1932 if (!$this->numFonts){
\r
1933 $this->selectFont('./fonts/Helvetica');
\r
1935 // for the current font, and the given size, what is the height of the font in user units
\r
1936 $h = $this->fonts[$this->currentFont]['FontBBox'][3]-$this->fonts[$this->currentFont]['FontBBox'][1];
\r
1937 return $size*$h/1000;
\r
1941 * return the font decender, this will normally return a negative number
\r
1942 * if you add this number to the baseline, you get the level of the bottom of the font
\r
1943 * it is in the pdf user units
\r
1945 function getFontDecender($size){
\r
1946 // note that this will most likely return a negative value
\r
1947 if (!$this->numFonts){
\r
1948 $this->selectFont('./fonts/Helvetica');
\r
1950 $h = $this->fonts[$this->currentFont]['FontBBox'][1];
\r
1951 return $size*$h/1000;
\r
1955 * filter the text, this is applied to all text just before being inserted into the pdf document
\r
1956 * it escapes the various things that need to be escaped, and so on
\r
1960 function filterText($text){
\r
1961 $text = str_replace('\\','\\\\',$text);
\r
1962 $text = str_replace('(','\(',$text);
\r
1963 $text = str_replace(')','\)',$text);
\r
1964 $text = str_replace('<','<',$text);
\r
1965 $text = str_replace('>','>',$text);
\r
1966 $text = str_replace(''','\'',$text);
\r
1967 $text = str_replace('"','"',$text);
\r
1968 $text = str_replace('&','&',$text);
\r
1974 * given a start position and information about how text is to be laid out, calculate where
\r
1975 * on the page the text will end
\r
1979 function PRVTgetTextPosition($x,$y,$angle,$size,$wa,$text){
\r
1980 // given this information return an array containing x and y for the end position as elements 0 and 1
\r
1981 $w = $this->getTextWidth($size,$text);
\r
1982 // need to adjust for the number of spaces in this text
\r
1983 $words = explode(' ',$text);
\r
1984 $nspaces=count($words)-1;
\r
1985 $w += $wa*$nspaces;
\r
1986 $a = deg2rad((float)$angle);
\r
1987 return array(cos($a)*$w+$x,-sin($a)*$w+$y);
\r
1991 * wrapper function for PRVTcheckTextDirective1
\r
1995 function PRVTcheckTextDirective(&$text,$i,&$f){
\r
1998 return $this->PRVTcheckTextDirective1($text,$i,$f,0,$x,$y);
\r
2002 * checks if the text stream contains a control directive
\r
2003 * if so then makes some changes and returns the number of characters involved in the directive
\r
2004 * this has been re-worked to include everything neccesary to fins the current writing point, so that
\r
2005 * the location can be sent to the callback function if required
\r
2006 * if the directive does not require a font change, then $f should be set to 0
\r
2010 function PRVTcheckTextDirective1(&$text,$i,&$f,$final,&$x,&$y,$size=0,$angle=0,$wordSpaceAdjust=0){
\r
2013 if ($text[$j]=='<'){
\r
2015 switch($text[$j]){
\r
2018 if (strlen($text) <= $j){
\r
2019 return $directive;
\r
2021 switch($text[$j]){
\r
2025 if ($text[$j]=='>'){
\r
2026 $p = strrpos($this->currentTextState,$text[$j-1]);
\r
2027 if ($p !== false){
\r
2028 // then there is one to remove
\r
2029 $this->currentTextState = substr($this->currentTextState,0,$p).substr($this->currentTextState,$p+1);
\r
2031 $directive=$j-$i+1;
\r
2035 // this this might be a callback function
\r
2037 $k = strpos($text,'>',$j);
\r
2038 if ($k!==false && $text[$j]==':'){
\r
2039 // then this will be treated as a callback directive
\r
2040 $directive = $k-$i+1;
\r
2042 // split the remainder on colons to get the function name and the paramater
\r
2043 $tmp = substr($text,$j+1,$k-$j-1);
\r
2044 $b1 = strpos($tmp,':');
\r
2046 $func = substr($tmp,0,$b1);
\r
2047 $parm = substr($tmp,$b1+1);
\r
2052 if (!isset($func) || !strlen(trim($func))){
\r
2055 // only call the function if this is the final call
\r
2057 // need to assess the text position, calculate the text width to this point
\r
2058 // can use getTextWidth to find the text width I think
\r
2059 $tmp = $this->PRVTgetTextPosition($x,$y,$angle,$size,$wordSpaceAdjust,substr($text,0,$i));
\r
2060 $info = array('x'=>$tmp[0],'y'=>$tmp[1],'angle'=>$angle,'status'=>'end','p'=>$parm,'nCallback'=>$this->nCallback);
\r
2063 $ret = $this->$func($info);
\r
2064 if (is_array($ret)){
\r
2065 // then the return from the callback function could set the position, to start with, later will do font colour, and font
\r
2066 foreach($ret as $rk=>$rv){
\r
2075 // also remove from to the stack
\r
2076 // for simplicity, just take from the end, fix this another day
\r
2077 $this->nCallback--;
\r
2078 if ($this->nCallback<0){
\r
2079 $this->nCallBack=0;
\r
2090 if ($text[$j]=='>'){
\r
2091 $this->currentTextState.=$text[$j-1];
\r
2092 $directive=$j-$i+1;
\r
2098 // this this might be a callback function
\r
2100 $k = strpos($text,'>',$j);
\r
2101 if ($k!==false && $text[$j]==':'){
\r
2102 // then this will be treated as a callback directive
\r
2103 $directive = $k-$i+1;
\r
2105 // split the remainder on colons to get the function name and the paramater
\r
2106 // $bits = explode(':',substr($text,$j+1,$k-$j-1));
\r
2107 $tmp = substr($text,$j+1,$k-$j-1);
\r
2108 $b1 = strpos($tmp,':');
\r
2110 $func = substr($tmp,0,$b1);
\r
2111 $parm = substr($tmp,$b1+1);
\r
2116 if (!isset($func) || !strlen(trim($func))){
\r
2119 // only call the function if this is the final call, ie, the one actually doing printing, not measurement
\r
2121 // need to assess the text position, calculate the text width to this point
\r
2122 // can use getTextWidth to find the text width I think
\r
2123 // also add the text height and decender
\r
2124 $tmp = $this->PRVTgetTextPosition($x,$y,$angle,$size,$wordSpaceAdjust,substr($text,0,$i));
\r
2125 $info = array('x'=>$tmp[0],'y'=>$tmp[1],'angle'=>$angle,'status'=>'start','p'=>$parm,'f'=>$func,'height'=>$this->getFontHeight($size),'decender'=>$this->getFontDecender($size));
\r
2128 if (!isset($noClose) || !$noClose){
\r
2129 // only add to the stack if this is a small 'c', therefore is a start-stop pair
\r
2130 $this->nCallback++;
\r
2131 $info['nCallback']=$this->nCallback;
\r
2132 $this->callback[$this->nCallback]=$info;
\r
2134 $ret = $this->$func($info);
\r
2135 if (is_array($ret)){
\r
2136 // then the return from the callback function could set the position, to start with, later will do font colour, and font
\r
2137 foreach($ret as $rk=>$rv){
\r
2152 return $directive;
\r
2156 * add text to the document, at a specified location, size and angle on the page
\r
2158 function addText($x,$y,$size,$text,$angle=0,$wordSpaceAdjust=0){
\r
2159 if (!$this->numFonts){$this->selectFont('./fonts/Helvetica');}
\r
2161 // if there are any open callbacks, then they should be called, to show the start of the line
\r
2162 if ($this->nCallback>0){
\r
2163 for ($i=$this->nCallback;$i>0;$i--){
\r
2164 // call each function
\r
2165 $info = array('x'=>$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']);
\r
2166 $func = $this->callback[$i]['f'];
\r
2167 $this->$func($info);
\r
2171 $this->objects[$this->currentContents]['c'].="\n".'BT '.sprintf('%.3f',$x).' '.sprintf('%.3f',$y).' Td';
\r
2173 $a = deg2rad((float)$angle);
\r
2174 $tmp = "\n".'BT ';
\r
2175 $tmp .= sprintf('%.3f',cos($a)).' '.sprintf('%.3f',(-1.0*sin($a))).' '.sprintf('%.3f',sin($a)).' '.sprintf('%.3f',cos($a)).' ';
\r
2176 $tmp .= sprintf('%.3f',$x).' '.sprintf('%.3f',$y).' Tm';
\r
2177 $this->objects[$this->currentContents]['c'] .= $tmp;
\r
2179 if ($wordSpaceAdjust!=0 || $wordSpaceAdjust != $this->wordSpaceAdjust){
\r
2180 $this->wordSpaceAdjust=$wordSpaceAdjust;
\r
2181 $this->objects[$this->currentContents]['c'].=' '.sprintf('%.3f',$wordSpaceAdjust).' Tw';
\r
2183 $len=strlen($text);
\r
2185 for ($i=0;$i<$len;$i++){
\r
2187 $directive = $this->PRVTcheckTextDirective($text,$i,$f);
\r
2189 // then we should write what we need to
\r
2191 $part = substr($text,$start,$i-$start);
\r
2192 $this->objects[$this->currentContents]['c'].=' /F'.$this->currentFontNum.' '.sprintf('%.1f',$size).' Tf ';
\r
2193 $this->objects[$this->currentContents]['c'].=' ('.$this->filterText($part).') Tj';
\r
2196 // then there was nothing drastic done here, restore the contents
\r
2197 $this->setCurrentFont();
\r
2199 $this->objects[$this->currentContents]['c'] .= ' ET';
\r
2203 $directive = $this->PRVTcheckTextDirective1($text,$i,$f,1,$xp,$yp,$size,$angle,$wordSpaceAdjust);
\r
2205 // restart the text object
\r
2207 $this->objects[$this->currentContents]['c'].="\n".'BT '.sprintf('%.3f',$xp).' '.sprintf('%.3f',$yp).' Td';
\r
2209 $a = deg2rad((float)$angle);
\r
2210 $tmp = "\n".'BT ';
\r
2211 $tmp .= sprintf('%.3f',cos($a)).' '.sprintf('%.3f',(-1.0*sin($a))).' '.sprintf('%.3f',sin($a)).' '.sprintf('%.3f',cos($a)).' ';
\r
2212 $tmp .= sprintf('%.3f',$xp).' '.sprintf('%.3f',$yp).' Tm';
\r
2213 $this->objects[$this->currentContents]['c'] .= $tmp;
\r
2215 if ($wordSpaceAdjust!=0 || $wordSpaceAdjust != $this->wordSpaceAdjust){
\r
2216 $this->wordSpaceAdjust=$wordSpaceAdjust;
\r
2217 $this->objects[$this->currentContents]['c'].=' '.sprintf('%.3f',$wordSpaceAdjust).' Tw';
\r
2220 // and move the writing point to the next piece of text
\r
2221 $i=$i+$directive-1;
\r
2227 $part = substr($text,$start);
\r
2228 $this->objects[$this->currentContents]['c'].=' /F'.$this->currentFontNum.' '.sprintf('%.1f',$size).' Tf ';
\r
2229 $this->objects[$this->currentContents]['c'].=' ('.$this->filterText($part).') Tj';
\r
2231 $this->objects[$this->currentContents]['c'].=' ET';
\r
2233 // if there are any open callbacks, then they should be called, to show the end of the line
\r
2234 if ($this->nCallback>0){
\r
2235 for ($i=$this->nCallback;$i>0;$i--){
\r
2236 // call each function
\r
2237 $tmp = $this->PRVTgetTextPosition($x,$y,$angle,$size,$wordSpaceAdjust,$text);
\r
2238 $info = array('x'=>$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']);
\r
2239 $func = $this->callback[$i]['f'];
\r
2240 $this->$func($info);
\r
2247 * calculate how wide a given text string will be on a page, at a given size.
\r
2248 * this can be called externally, but is alse used by the other class functions
\r
2250 function getTextWidth($size,$text){
\r
2251 // this function should not change any of the settings, though it will need to
\r
2252 // track any directives which change during calculation, so copy them at the start
\r
2253 // and put them back at the end.
\r
2254 $store_currentTextState = $this->currentTextState;
\r
2256 if (!$this->numFonts){
\r
2257 $this->selectFont('./fonts/Helvetica');
\r
2260 // converts a number or a float to a string so it can get the width
\r
2263 // hmm, this is where it all starts to get tricky - use the font information to
\r
2264 // calculate the width of each character, add them up and convert to user units
\r
2266 $len=strlen($text);
\r
2267 $cf = $this->currentFont;
\r
2268 for ($i=0;$i<$len;$i++){
\r
2270 $directive = $this->PRVTcheckTextDirective($text,$i,$f);
\r
2273 $this->setCurrentFont();
\r
2274 $cf = $this->currentFont;
\r
2276 $i=$i+$directive-1;
\r
2278 $char=ord($text[$i]);
\r
2279 if (isset($this->fonts[$cf]['differences'][$char])){
\r
2280 // then this character is being replaced by another
\r
2281 $name = $this->fonts[$cf]['differences'][$char];
\r
2282 if (isset($this->fonts[$cf]['C'][$name]['WX'])){
\r
2283 $w+=$this->fonts[$cf]['C'][$name]['WX'];
\r
2285 } else if (isset($this->fonts[$cf]['C'][$char]['WX'])){
\r
2286 $w+=$this->fonts[$cf]['C'][$char]['WX'];
\r
2291 $this->currentTextState = $store_currentTextState;
\r
2292 $this->setCurrentFont();
\r
2294 return $w*$size/1000;
\r
2298 * do a part of the calculation for sorting out the justification of the text
\r
2302 function PRVTadjustWrapText($text,$actual,$width,&$x,&$adjust,$justification){
\r
2303 switch ($justification){
\r
2308 $x+=$width-$actual;
\r
2312 $x+=($width-$actual)/2;
\r
2315 // count the number of words
\r
2316 $words = explode(' ',$text);
\r
2317 $nspaces=count($words)-1;
\r
2319 $adjust = ($width-$actual)/$nspaces;
\r
2328 * add text to the page, but ensure that it fits within a certain width
\r
2329 * if it does not fit then put in as much as possible, splitting at word boundaries
\r
2330 * and return the remainder.
\r
2331 * justification and angle can also be specified for the text
\r
2333 function addTextWrap($x,$y,$width,$size,$text,$justification='left',$angle=0,$test=0){
\r
2334 // this will display the text, and if it goes beyond the width $width, will backtrack to the
\r
2335 // previous space or hyphen, and return the remainder of the text.
\r
2337 // $justification can be set to 'left','right','center','centre','full'
\r
2339 // need to store the initial text state, as this will change during the width calculation
\r
2340 // but will need to be re-set before printing, so that the chars work out right
\r
2341 $store_currentTextState = $this->currentTextState;
\r
2343 if (!$this->numFonts){$this->selectFont('./fonts/Helvetica');}
\r
2345 // error, pretend it printed ok, otherwise risking a loop
\r
2351 $len=strlen($text);
\r
2352 $cf = $this->currentFont;
\r
2353 $tw = $width/$size*1000;
\r
2354 for ($i=0;$i<$len;$i++){
\r
2356 $directive = $this->PRVTcheckTextDirective($text,$i,$f);
\r
2359 $this->setCurrentFont();
\r
2360 $cf = $this->currentFont;
\r
2362 $i=$i+$directive-1;
\r
2364 $cOrd = ord($text[$i]);
\r
2365 if (isset($this->fonts[$cf]['differences'][$cOrd])){
\r
2366 // then this character is being replaced by another
\r
2367 $cOrd2 = $this->fonts[$cf]['differences'][$cOrd];
\r
2372 if (isset($this->fonts[$cf]['C'][$cOrd2]['WX'])){
\r
2373 $w+=$this->fonts[$cf]['C'][$cOrd2]['WX'];
\r
2376 // then we need to truncate this line
\r
2378 // then we have somewhere that we can split :)
\r
2379 if ($text[$break]==' '){
\r
2380 $tmp = substr($text,0,$break);
\r
2382 $tmp = substr($text,0,$break+1);
\r
2385 $this->PRVTadjustWrapText($tmp,$breakWidth,$width,$x,$adjust,$justification);
\r
2387 // reset the text state
\r
2388 $this->currentTextState = $store_currentTextState;
\r
2389 $this->setCurrentFont();
\r
2391 $this->addText($x,$y,$size,$tmp,$angle,$adjust);
\r
2393 return substr($text,$break+1);
\r
2395 // just split before the current character
\r
2396 $tmp = substr($text,0,$i);
\r
2398 $ctmp=ord($text[$i]);
\r
2399 if (isset($this->fonts[$cf]['differences'][$ctmp])){
\r
2400 $ctmp=$this->fonts[$cf]['differences'][$ctmp];
\r
2402 $tmpw=($w-$this->fonts[$cf]['C'][$ctmp]['WX'])*$size/1000;
\r
2403 $this->PRVTadjustWrapText($tmp,$tmpw,$width,$x,$adjust,$justification);
\r
2404 // reset the text state
\r
2405 $this->currentTextState = $store_currentTextState;
\r
2406 $this->setCurrentFont();
\r
2408 $this->addText($x,$y,$size,$tmp,$angle,$adjust);
\r
2410 return substr($text,$i);
\r
2413 if ($text[$i]=='-'){
\r
2415 $breakWidth = $w*$size/1000;
\r
2417 if ($text[$i]==' '){
\r
2419 $ctmp=ord($text[$i]);
\r
2420 if (isset($this->fonts[$cf]['differences'][$ctmp])){
\r
2421 $ctmp=$this->fonts[$cf]['differences'][$ctmp];
\r
2423 $breakWidth = ($w-$this->fonts[$cf]['C'][$ctmp]['WX'])*$size/1000;
\r
2427 // then there was no need to break this line
\r
2428 if ($justification=='full'){
\r
2429 $justification='left';
\r
2432 $tmpw=$w*$size/1000;
\r
2433 $this->PRVTadjustWrapText($text,$tmpw,$width,$x,$adjust,$justification);
\r
2434 // reset the text state
\r
2435 $this->currentTextState = $store_currentTextState;
\r
2436 $this->setCurrentFont();
\r
2438 $this->addText($x,$y,$size,$text,$angle,$adjust,$angle);
\r
2444 * this will be called at a new page to return the state to what it was on the
\r
2445 * end of the previous page, before the stack was closed down
\r
2446 * This is to get around not being able to have open 'q' across pages
\r
2449 function saveState($pageEnd=0){
\r
2451 // this will be called at a new page to return the state to what it was on the
\r
2452 // end of the previous page, before the stack was closed down
\r
2453 // This is to get around not being able to have open 'q' across pages
\r
2454 $opt = $this->stateStack[$pageEnd]; // ok to use this as stack starts numbering at 1
\r
2455 $this->setColor($opt['col']['r'],$opt['col']['g'],$opt['col']['b'],1);
\r
2456 $this->setStrokeColor($opt['str']['r'],$opt['str']['g'],$opt['str']['b'],1);
\r
2457 $this->objects[$this->currentContents]['c'].="\n".$opt['lin'];
\r
2458 // $this->currentLineStyle = $opt['lin'];
\r
2460 $this->nStateStack++;
\r
2461 $this->stateStack[$this->nStateStack]=array(
\r
2462 'col'=>$this->currentColour
\r
2463 ,'str'=>$this->currentStrokeColour
\r
2464 ,'lin'=>$this->currentLineStyle
\r
2467 $this->objects[$this->currentContents]['c'].="\nq";
\r
2471 * restore a previously saved state
\r
2473 function restoreState($pageEnd=0){
\r
2475 $n = $this->nStateStack;
\r
2476 $this->currentColour = $this->stateStack[$n]['col'];
\r
2477 $this->currentStrokeColour = $this->stateStack[$n]['str'];
\r
2478 $this->objects[$this->currentContents]['c'].="\n".$this->stateStack[$n]['lin'];
\r
2479 $this->currentLineStyle = $this->stateStack[$n]['lin'];
\r
2480 unset($this->stateStack[$n]);
\r
2481 $this->nStateStack--;
\r
2483 $this->objects[$this->currentContents]['c'].="\nQ";
\r
2487 * make a loose object, the output will go into this object, until it is closed, then will revert to
\r
2488 * the current one.
\r
2489 * this object will not appear until it is included within a page.
\r
2490 * the function will return the object number
\r
2492 function openObject(){
\r
2494 $this->stack[$this->nStack]=array('c'=>$this->currentContents,'p'=>$this->currentPage);
\r
2495 // add a new object of the content type, to hold the data flow
\r
2497 $this->o_contents($this->numObj,'new');
\r
2498 $this->currentContents=$this->numObj;
\r
2499 $this->looseObjects[$this->numObj]=1;
\r
2501 return $this->numObj;
\r
2505 * open an existing object for editing
\r
2507 function reopenObject($id){
\r
2509 $this->stack[$this->nStack]=array('c'=>$this->currentContents,'p'=>$this->currentPage);
\r
2510 $this->currentContents=$id;
\r
2511 // also if this object is the primary contents for a page, then set the current page to its parent
\r
2512 if (isset($this->objects[$id]['onPage'])){
\r
2513 $this->currentPage = $this->objects[$id]['onPage'];
\r
2520 function closeObject(){
\r
2521 // close the object, as long as there was one open in the first place, which will be indicated by
\r
2522 // an objectId on the stack.
\r
2523 if ($this->nStack>0){
\r
2524 $this->currentContents=$this->stack[$this->nStack]['c'];
\r
2525 $this->currentPage=$this->stack[$this->nStack]['p'];
\r
2527 // easier to probably not worry about removing the old entries, they will be overwritten
\r
2528 // if there are new ones.
\r
2533 * stop an object from appearing on pages from this point on
\r
2535 function stopObject($id){
\r
2536 // if an object has been appearing on pages up to now, then stop it, this page will
\r
2537 // be the last one that could contian it.
\r
2538 if (isset($this->addLooseObjects[$id])){
\r
2539 $this->addLooseObjects[$id]='';
\r
2544 * after an object has been created, it wil only show if it has been added, using this function.
\r
2546 function addObject($id,$options='add'){
\r
2547 // add the specified object to the page
\r
2548 if (isset($this->looseObjects[$id]) && $this->currentContents!=$id){
\r
2549 // then it is a valid object, and it is not being added to itself
\r
2552 // then this object is to be added to this page (done in the next block) and
\r
2553 // all future new pages.
\r
2554 $this->addLooseObjects[$id]='all';
\r
2556 if (isset($this->objects[$this->currentContents]['onPage'])){
\r
2557 // then the destination contents is the primary for the page
\r
2558 // (though this object is actually added to that page)
\r
2559 $this->o_page($this->objects[$this->currentContents]['onPage'],'content',$id);
\r
2563 $this->addLooseObjects[$id]='even';
\r
2564 $pageObjectId=$this->objects[$this->currentContents]['onPage'];
\r
2565 if ($this->objects[$pageObjectId]['info']['pageNum']%2==0){
\r
2566 $this->addObject($id); // hacky huh :)
\r
2570 $this->addLooseObjects[$id]='odd';
\r
2571 $pageObjectId=$this->objects[$this->currentContents]['onPage'];
\r
2572 if ($this->objects[$pageObjectId]['info']['pageNum']%2==1){
\r
2573 $this->addObject($id); // hacky huh :)
\r
2577 $this->addLooseObjects[$id]='all';
\r
2580 $this->addLooseObjects[$id]='even';
\r
2583 $this->addLooseObjects[$id]='odd';
\r
2590 * add content to the documents info object
\r
2592 function addInfo($label,$value=0){
\r
2593 // this will only work if the label is one of the valid ones.
\r
2594 // modify this so that arrays can be passed as well.
\r
2595 // if $label is an array then assume that it is key=>value pairs
\r
2596 // else assume that they are both scalar, anything else will probably error
\r
2597 if (is_array($label)){
\r
2598 foreach ($label as $l=>$v){
\r
2599 $this->o_info($this->infoObject,$l,$v);
\r
2602 $this->o_info($this->infoObject,$label,$value);
\r
2607 * set the viewer preferences of the document, it is up to the browser to obey these.
\r
2609 function setPreferences($label,$value=0){
\r
2610 // this will only work if the label is one of the valid ones.
\r
2611 if (is_array($label)){
\r
2612 foreach ($label as $l=>$v){
\r
2613 $this->o_catalog($this->catalogId,'viewerPreferences',array($l=>$v));
\r
2616 $this->o_catalog($this->catalogId,'viewerPreferences',array($label=>$value));
\r
2621 * extract an integer from a position in a byte stream
\r
2625 function PRVT_getBytes(&$data,$pos,$num){
\r
2626 // return the integer represented by $num bytes from $pos within $data
\r
2628 for ($i=0;$i<$num;$i++){
\r
2630 $ret+=ord($data[$pos+$i]);
\r
2636 * add a PNG image into the document, from a file
\r
2637 * this should work with remote files
\r
2639 function addPngFromFile($file,$x,$y,$w=0,$h=0){
\r
2640 // read in a png file, interpret it, then add to the system
\r
2642 $tmp = get_magic_quotes_runtime();
\r
2643 set_magic_quotes_runtime(0);
\r
2644 $fp = @fopen($file,'rb');
\r
2647 while(!feof($fp)){
\r
2648 $data .= fread($fp,1024);
\r
2653 $errormsg = 'trouble opening file: '.$file;
\r
2655 set_magic_quotes_runtime($tmp);
\r
2658 $header = chr(137).chr(80).chr(78).chr(71).chr(13).chr(10).chr(26).chr(10);
\r
2659 if (substr($data,0,8)!=$header){
\r
2661 $errormsg = 'this file does not have a valid header';
\r
2668 $len = strlen($data);
\r
2669 // cycle through the file, identifying chunks
\r
2675 $chunkLen = $this->PRVT_getBytes($data,$p,4);
\r
2676 $chunkType = substr($data,$p+4,4);
\r
2677 // echo $chunkType.' - '.$chunkLen.'<br>';
\r
2679 switch($chunkType){
\r
2681 // this is where all the file information comes from
\r
2682 $info['width']=$this->PRVT_getBytes($data,$p+8,4);
\r
2683 $info['height']=$this->PRVT_getBytes($data,$p+12,4);
\r
2684 $info['bitDepth']=ord($data[$p+16]);
\r
2685 $info['colorType']=ord($data[$p+17]);
\r
2686 $info['compressionMethod']=ord($data[$p+18]);
\r
2687 $info['filterMethod']=ord($data[$p+19]);
\r
2688 $info['interlaceMethod']=ord($data[$p+20]);
\r
2691 if ($info['compressionMethod']!=0){
\r
2693 $errormsg = 'unsupported compression method';
\r
2695 if ($info['filterMethod']!=0){
\r
2697 $errormsg = 'unsupported filter method';
\r
2701 $pdata.=substr($data,$p+8,$chunkLen);
\r
2704 $idata.=substr($data,$p+8,$chunkLen);
\r
2707 //this chunk can only occur once and it must occur after the PLTE chunk and before IDAT chunk
\r
2708 //print "tRNS found, color type = ".$info['colorType']."<BR>";
\r
2709 $transparency = array();
\r
2710 if ($info['colorType'] == 3) { // indexed color, rbg
\r
2711 /* corresponding to entries in the plte chunk
\r
2712 Alpha for palette index 0: 1 byte
\r
2713 Alpha for palette index 1: 1 byte
\r
2716 // there will be one entry for each palette entry. up until the last non-opaque entry.
\r
2717 // set up an array, stretching over all palette entries which will be o (opaque) or 1 (transparent)
\r
2718 $transparency['type']='indexed';
\r
2719 $numPalette = strlen($pdata)/3;
\r
2721 for ($i=$chunkLen;$i>=0;$i--){
\r
2722 if (ord($data[$p+8+$i])==0){
\r
2726 $transparency['data'] = $trans;
\r
2728 } elseif($info['colorType'] == 0) { // grayscale
\r
2729 /* corresponding to entries in the plte chunk
\r
2730 Gray: 2 bytes, range 0 .. (2^bitdepth)-1
\r
2732 // $transparency['grayscale']=$this->PRVT_getBytes($data,$p+8,2); // g = grayscale
\r
2733 $transparency['type']='indexed';
\r
2734 $transparency['data'] = ord($data[$p+8+1]);
\r
2736 } elseif($info['colorType'] == 2) { // truecolor
\r
2737 /* corresponding to entries in the plte chunk
\r
2738 Red: 2 bytes, range 0 .. (2^bitdepth)-1
\r
2739 Green: 2 bytes, range 0 .. (2^bitdepth)-1
\r
2740 Blue: 2 bytes, range 0 .. (2^bitdepth)-1
\r
2742 $transparency['r']=$this->PRVT_getBytes($data,$p+8,2); // r from truecolor
\r
2743 $transparency['g']=$this->PRVT_getBytes($data,$p+10,2); // g from truecolor
\r
2744 $transparency['b']=$this->PRVT_getBytes($data,$p+12,2); // b from truecolor
\r
2747 //unsupported transparency type
\r
2749 // KS End new code
\r
2755 $p += $chunkLen+12;
\r
2760 $errormsg = 'information header is missing';
\r
2762 if (isset($info['interlaceMethod']) && $info['interlaceMethod']){
\r
2764 $errormsg = 'There appears to be no support for interlaced images in pdf.';
\r
2768 if (!$error && $info['bitDepth'] > 8){
\r
2770 $errormsg = 'only bit depth of 8 or less is supported';
\r
2774 if ($info['colorType']!=2 && $info['colorType']!=0 && $info['colorType']!=3){
\r
2776 $errormsg = 'transparancey alpha channel not supported, transparency only supported for palette images.';
\r
2778 switch ($info['colorType']){
\r
2780 $color = 'DeviceRGB';
\r
2784 $color = 'DeviceRGB';
\r
2788 $color = 'DeviceGray';
\r
2795 $this->addMessage('PNG error - ('.$file.') '.$errormsg);
\r
2799 $w=$h/$info['height']*$info['width'];
\r
2802 $h=$w*$info['height']/$info['width'];
\r
2805 // so this image is ok... add it in.
\r
2806 $this->numImages++;
\r
2807 $im=$this->numImages;
\r
2810 // $this->o_image($this->numObj,'new',array('label'=>$label,'data'=>$idata,'iw'=>$w,'ih'=>$h,'type'=>'png','ic'=>$info['width']));
\r
2811 $options = array('label'=>$label,'data'=>$idata,'bitsPerComponent'=>$info['bitDepth'],'pdata'=>$pdata
\r
2812 ,'iw'=>$info['width'],'ih'=>$info['height'],'type'=>'png','color'=>$color,'ncolor'=>$ncolor);
\r
2813 if (isset($transparency)){
\r
2814 $options['transparency']=$transparency;
\r
2816 $this->o_image($this->numObj,'new',$options);
\r
2818 $this->objects[$this->currentContents]['c'].="\nq";
\r
2819 $this->objects[$this->currentContents]['c'].="\n".sprintf('%.3f',$w)." 0 0 ".sprintf('%.3f',$h)." ".sprintf('%.3f',$x)." ".sprintf('%.3f',$y)." cm";
\r
2820 $this->objects[$this->currentContents]['c'].="\n/".$label.' Do';
\r
2821 $this->objects[$this->currentContents]['c'].="\nQ";
\r
2825 * add a JPEG image into the document, from a file
\r
2827 function addJpegFromFile($img,$x,$y,$w=0,$h=0){
\r
2828 // attempt to add a jpeg image straight from a file, using no GD commands
\r
2829 // note that this function is unable to operate on a remote file.
\r
2831 if (!file_exists($img)){
\r
2835 $tmp=getimagesize($img);
\r
2836 $imageWidth=$tmp[0];
\r
2837 $imageHeight=$tmp[1];
\r
2839 if (isset($tmp['channels'])){
\r
2840 $channels = $tmp['channels'];
\r
2845 if ($w<=0 && $h<=0){
\r
2849 $w=$h/$imageHeight*$imageWidth;
\r
2852 $h=$w*$imageHeight/$imageWidth;
\r
2855 $fp=fopen($img,'rb');
\r
2857 $tmp = get_magic_quotes_runtime();
\r
2858 set_magic_quotes_runtime(0);
\r
2859 $data = fread($fp,filesize($img));
\r
2860 set_magic_quotes_runtime($tmp);
\r
2864 $this->addJpegImage_common($data,$x,$y,$w,$h,$imageWidth,$imageHeight,$channels);
\r
2868 * add an image into the document, from a GD object
\r
2869 * this function is not all that reliable, and I would probably encourage people to use
\r
2870 * the file based functions
\r
2872 function addImage(&$img,$x,$y,$w=0,$h=0,$quality=75){
\r
2873 // add a new image into the current location, as an external object
\r
2874 // add the image at $x,$y, and with width and height as defined by $w & $h
\r
2876 // note that this will only work with full colour images and makes them jpg images for display
\r
2877 // later versions could present lossless image formats if there is interest.
\r
2879 // there seems to be some problem here in that images that have quality set above 75 do not appear
\r
2880 // not too sure why this is, but in the meantime I have restricted this to 75.
\r
2885 // if the width or height are set to zero, then set the other one based on keeping the image
\r
2886 // height/width ratio the same, if they are both zero, then give up :)
\r
2887 $imageWidth=imagesx($img);
\r
2888 $imageHeight=imagesy($img);
\r
2890 if ($w<=0 && $h<=0){
\r
2894 $w=$h/$imageHeight*$imageWidth;
\r
2897 $h=$w*$imageHeight/$imageWidth;
\r
2900 // gotta get the data out of the img..
\r
2902 // so I write to a temp file, and then read it back.. soo ugly, my apologies.
\r
2904 $tmpName=tempnam($tmpDir,'img');
\r
2905 imagejpeg($img,$tmpName,$quality);
\r
2906 $fp=fopen($tmpName,'rb');
\r
2908 $tmp = get_magic_quotes_runtime();
\r
2909 set_magic_quotes_runtime(0);
\r
2910 $fp = @fopen($tmpName,'rb');
\r
2913 while(!feof($fp)){
\r
2914 $data .= fread($fp,1024);
\r
2919 $errormsg = 'trouble opening file';
\r
2921 // $data = fread($fp,filesize($tmpName));
\r
2922 set_magic_quotes_runtime($tmp);
\r
2925 $this->addJpegImage_common($data,$x,$y,$w,$h,$imageWidth,$imageHeight);
\r
2929 * common code used by the two JPEG adding functions
\r
2933 function addJpegImage_common(&$data,$x,$y,$w=0,$h=0,$imageWidth,$imageHeight,$channels=3){
\r
2934 // note that this function is not to be called externally
\r
2935 // it is just the common code between the GD and the file options
\r
2936 $this->numImages++;
\r
2937 $im=$this->numImages;
\r
2940 $this->o_image($this->numObj,'new',array('label'=>$label,'data'=>$data,'iw'=>$imageWidth,'ih'=>$imageHeight,'channels'=>$channels));
\r
2942 $this->objects[$this->currentContents]['c'].="\nq";
\r
2943 $this->objects[$this->currentContents]['c'].="\n".sprintf('%.3f',$w)." 0 0 ".sprintf('%.3f',$h)." ".sprintf('%.3f',$x)." ".sprintf('%.3f',$y)." cm";
\r
2944 $this->objects[$this->currentContents]['c'].="\n/".$label.' Do';
\r
2945 $this->objects[$this->currentContents]['c'].="\nQ";
\r
2949 * specify where the document should open when it first starts
\r
2951 function openHere($style,$a=0,$b=0,$c=0){
\r
2952 // this function will open the document at a specified page, in a specified style
\r
2953 // the values for style, and the required paramters are:
\r
2954 // 'XYZ' left, top, zoom
\r
2958 // 'FitR' left,bottom,right
\r
2963 $this->o_destination($this->numObj,'new',array('page'=>$this->currentPage,'type'=>$style,'p1'=>$a,'p2'=>$b,'p3'=>$c));
\r
2964 $id = $this->catalogId;
\r
2965 $this->o_catalog($id,'openHere',$this->numObj);
\r
2969 * create a labelled destination within the document
\r
2971 function addDestination($label,$style,$a=0,$b=0,$c=0){
\r
2972 // associates the given label with the destination, it is done this way so that a destination can be specified after
\r
2973 // it has been linked to
\r
2974 // styles are the same as the 'openHere' function
\r
2976 $this->o_destination($this->numObj,'new',array('page'=>$this->currentPage,'type'=>$style,'p1'=>$a,'p2'=>$b,'p3'=>$c));
\r
2977 $id = $this->numObj;
\r
2978 // store the label->idf relationship, note that this means that labels can be used only once
\r
2979 $this->destinations["$label"]=$id;
\r
2983 * define font families, this is used to initialize the font families for the default fonts
\r
2984 * and for the user to add new ones for their fonts. The default bahavious can be overridden should
\r
2985 * that be desired.
\r
2987 function setFontFamily($family,$options=''){
\r
2988 if (!is_array($options)){
\r
2989 if ($family=='init'){
\r
2990 // set the known family groups
\r
2991 // these font families will be used to enable bold and italic markers to be included
\r
2992 // within text streams. html forms will be used... <b></b> <i></i>
\r
2993 $this->fontFamilies['Helvetica.afm']=array(
\r
2994 'b'=>'Helvetica-Bold.afm'
\r
2995 ,'i'=>'Helvetica-Oblique.afm'
\r
2996 ,'bi'=>'Helvetica-BoldOblique.afm'
\r
2997 ,'ib'=>'Helvetica-BoldOblique.afm'
\r
2999 $this->fontFamilies['Courier.afm']=array(
\r
3000 'b'=>'Courier-Bold.afm'
\r
3001 ,'i'=>'Courier-Oblique.afm'
\r
3002 ,'bi'=>'Courier-BoldOblique.afm'
\r
3003 ,'ib'=>'Courier-BoldOblique.afm'
\r
3005 $this->fontFamilies['Times-Roman.afm']=array(
\r
3006 'b'=>'Times-Bold.afm'
\r
3007 ,'i'=>'Times-Italic.afm'
\r
3008 ,'bi'=>'Times-BoldItalic.afm'
\r
3009 ,'ib'=>'Times-BoldItalic.afm'
\r
3013 // the user is trying to set a font family
\r
3014 // note that this can also be used to set the base ones to something else
\r
3015 if (strlen($family)){
\r
3016 $this->fontFamilies[$family] = $options;
\r
3022 * used to add messages for use in debugging
\r
3024 function addMessage($message){
\r
3025 $this->messages.=$message."\n";
\r
3029 * a few functions which should allow the document to be treated transactionally.
\r
3031 function transaction($action){
\r
3034 // store all the data away into the checkpoint variable
\r
3035 $data = get_object_vars($this);
\r
3036 $this->checkpoint = $data;
\r
3040 if (is_array($this->checkpoint) && isset($this->checkpoint['checkpoint'])){
\r
3041 $tmp = $this->checkpoint['checkpoint'];
\r
3042 $this->checkpoint = $tmp;
\r
3045 $this->checkpoint='';
\r
3049 // do not destroy the current checkpoint, but move us back to the state then, so that we can try again
\r
3050 if (is_array($this->checkpoint)){
\r
3051 // can only abort if were inside a checkpoint
\r
3052 $tmp = $this->checkpoint;
\r
3053 foreach ($tmp as $k=>$v){
\r
3054 if ($k != 'checkpoint'){
\r
3062 if (is_array($this->checkpoint)){
\r
3063 // can only abort if were inside a checkpoint
\r
3064 $tmp = $this->checkpoint;
\r
3065 foreach ($tmp as $k=>$v){
\r