1: <?php
   2: /*******************************************************************************
   3: * FPDF                                                                         *
   4: *                                                                              *
   5: * Version: 1.7                                                                 *
   6: * Date:    2011-06-18                                                          *
   7: * Author:  Olivier PLATHEY                                                     *
   8: *******************************************************************************/
   9: 
  10: define('FPDF_VERSION','1.7');
  11: 
  12: class FPDF
  13: {
  14:     public $page;               // current page number
  15:     public $n;                  // current object number
  16:     public $offsets;            // array of object offsets
  17:     public $buffer;             // buffer holding in-memory PDF
  18:     public $pages;              // array containing pages
  19:     public $state;              // current document state
  20:     public $compress;           // compression flag
  21:     public $k;                  // scale factor (number of points in user unit)
  22:     public $DefOrientation;     // default orientation
  23:     public $CurOrientation;     // current orientation
  24:     public $StdPageSizes;       // standard page sizes
  25:     public $DefPageSize;        // default page size
  26:     public $CurPageSize;        // current page size
  27:     public $PageSizes;          // used for pages with non default sizes or orientations
  28:     public $wPt, $hPt;          // dimensions of current page in points
  29:     public $w, $h;              // dimensions of current page in user unit
  30:     public $lMargin;            // left margin
  31:     public $tMargin;            // top margin
  32:     public $rMargin;            // right margin
  33:     public $bMargin;            // page break margin
  34:     public $cMargin;            // cell margin
  35:     public $x, $y;              // current position in user unit
  36:     public $lasth;              // height of last printed cell
  37:     public $LineWidth;          // line width in user unit
  38:     public $fontpath;           // path containing fonts
  39:     public $CoreFonts;          // array of core font names
  40:     public $fonts;              // array of used fonts
  41:     public $FontFiles;          // array of font files
  42:     public $diffs;              // array of encoding differences
  43:     public $FontFamily;         // current font family
  44:     public $FontStyle;          // current font style
  45:     public $underline;          // underlining flag
  46:     public $CurrentFont;        // current font info
  47:     public $FontSizePt;         // current font size in points
  48:     public $FontSize;           // current font size in user unit
  49:     public $DrawColor;          // commands for drawing color
  50:     public $FillColor;          // commands for filling color
  51:     public $TextColor;          // commands for text color
  52:     public $ColorFlag;          // indicates whether fill and text colors are different
  53:     public $ws;                 // word spacing
  54:     public $images;             // array of used images
  55:     public $PageLinks;          // array of links in pages
  56:     public $links;              // array of internal links
  57:     public $AutoPageBreak;      // automatic page breaking
  58:     public $PageBreakTrigger;   // threshold used to trigger page breaks
  59:     public $InHeader;           // flag set when processing header
  60:     public $InFooter;           // flag set when processing footer
  61:     public $ZoomMode;           // zoom display mode
  62:     public $LayoutMode;         // layout display mode
  63:     public $title;              // title
  64:     public $subject;            // subject
  65:     public $author;             // author
  66:     public $keywords;           // keywords
  67:     public $creator;            // creator
  68:     public $AliasNbPages;       // alias for total number of pages
  69:     public $PDFVersion;         // PDF version number
  70:     
  71:     /*******************************************************************************
  72:     *                                                                              *
  73:     *                               Public methods                                 *
  74:     *                                                                              *
  75:     *******************************************************************************/
  76:     function FPDF($orientation='P', $unit='mm', $size='A4')
  77:     {
  78:         // Some checks
  79:         $this->_dochecks();
  80:         // Initialization of properties
  81:         $this->page = 0;
  82:         $this->n = 2;
  83:         $this->buffer = '';
  84:         $this->pages = array();
  85:         $this->PageSizes = array();
  86:         $this->state = 0;
  87:         $this->fonts = array();
  88:         $this->FontFiles = array();
  89:         $this->diffs = array();
  90:         $this->images = array();
  91:         $this->links = array();
  92:         $this->InHeader = false;
  93:         $this->InFooter = false;
  94:         $this->lasth = 0;
  95:         $this->FontFamily = '';
  96:         $this->FontStyle = '';
  97:         $this->FontSizePt = 12;
  98:         $this->underline = false;
  99:         $this->DrawColor = '0 G';
 100:         $this->FillColor = '0 g';
 101:         $this->TextColor = '0 g';
 102:         $this->ColorFlag = false;
 103:         $this->ws = 0;
 104:         // Font path
 105:         if(defined('FPDF_FONTPATH'))
 106:         {
 107:             $this->fontpath = FPDF_FONTPATH;
 108:             if(substr($this->fontpath,-1)!='/' && substr($this->fontpath,-1)!='\\')
 109:                 $this->fontpath .= '/';
 110:         }
 111:         elseif(is_dir(dirname(__FILE__).'/font'))
 112:             $this->fontpath = dirname(__FILE__).'/font/';
 113:         else
 114:             $this->fontpath = '';
 115:         // Core fonts
 116:         $this->CoreFonts = array('courier', 'helvetica', 'times', 'symbol', 'zapfdingbats');
 117:         // Scale factor
 118:         if($unit=='pt')
 119:             $this->k = 1;
 120:         elseif($unit=='mm')
 121:             $this->k = 72/25.4;
 122:         elseif($unit=='cm')
 123:             $this->k = 72/2.54;
 124:         elseif($unit=='in')
 125:             $this->k = 72;
 126:         else
 127:             $this->Error('Incorrect unit: '.$unit);
 128:         // Page sizes
 129:         $this->StdPageSizes = array('a3'=>array(841.89,1190.55), 'a4'=>array(595.28,841.89), 'a5'=>array(420.94,595.28),
 130:             'letter'=>array(612,792), 'legal'=>array(612,1008));
 131:         $size = $this->_getpagesize($size);
 132:         $this->DefPageSize = $size;
 133:         $this->CurPageSize = $size;
 134:         // Page orientation
 135:         $orientation = strtolower($orientation);
 136:         if($orientation=='p' || $orientation=='portrait')
 137:         {
 138:             $this->DefOrientation = 'P';
 139:             $this->w = $size[0];
 140:             $this->h = $size[1];
 141:         }
 142:         elseif($orientation=='l' || $orientation=='landscape')
 143:         {
 144:             $this->DefOrientation = 'L';
 145:             $this->w = $size[1];
 146:             $this->h = $size[0];
 147:         }
 148:         else
 149:             $this->Error('Incorrect orientation: '.$orientation);
 150:         $this->CurOrientation = $this->DefOrientation;
 151:         $this->wPt = $this->w*$this->k;
 152:         $this->hPt = $this->h*$this->k;
 153:         // Page margins (1 cm)
 154:         $margin = 28.35/$this->k;
 155:         $this->SetMargins($margin,$margin);
 156:         // Interior cell margin (1 mm)
 157:         $this->cMargin = $margin/10;
 158:         // Line width (0.2 mm)
 159:         $this->LineWidth = .567/$this->k;
 160:         // Automatic page break
 161:         $this->SetAutoPageBreak(true,2*$margin);
 162:         // Default display mode
 163:         $this->SetDisplayMode('default');
 164:         // Enable compression
 165:         $this->SetCompression(true);
 166:         // Set default PDF version number
 167:         $this->PDFVersion = '1.3';
 168:     }
 169:     
 170:     function SetMargins($left, $top, $right=null)
 171:     {
 172:         // Set left, top and right margins
 173:         $this->lMargin = $left;
 174:         $this->tMargin = $top;
 175:         if($right===null)
 176:             $right = $left;
 177:         $this->rMargin = $right;
 178:     }
 179:     
 180:     function SetLeftMargin($margin)
 181:     {
 182:         // Set left margin
 183:         $this->lMargin = $margin;
 184:         if($this->page>0 && $this->x<$margin)
 185:             $this->x = $margin;
 186:     }
 187:     
 188:     function SetTopMargin($margin)
 189:     {
 190:         // Set top margin
 191:         $this->tMargin = $margin;
 192:     }
 193:     
 194:     function SetRightMargin($margin)
 195:     {
 196:         // Set right margin
 197:         $this->rMargin = $margin;
 198:     }
 199:     
 200:     function SetAutoPageBreak($auto, $margin=0)
 201:     {
 202:         // Set auto page break mode and triggering margin
 203:         $this->AutoPageBreak = $auto;
 204:         $this->bMargin = $margin;
 205:         $this->PageBreakTrigger = $this->h-$margin;
 206:     }
 207:     
 208:     function SetDisplayMode($zoom, $layout='default')
 209:     {
 210:         // Set display mode in viewer
 211:         if($zoom=='fullpage' || $zoom=='fullwidth' || $zoom=='real' || $zoom=='default' || !is_string($zoom))
 212:             $this->ZoomMode = $zoom;
 213:         else
 214:             $this->Error('Incorrect zoom display mode: '.$zoom);
 215:         if($layout=='single' || $layout=='continuous' || $layout=='two' || $layout=='default')
 216:             $this->LayoutMode = $layout;
 217:         else
 218:             $this->Error('Incorrect layout display mode: '.$layout);
 219:     }
 220:     
 221:     function SetCompression($compress)
 222:     {
 223:         // Set page compression
 224:         if(function_exists('gzcompress'))
 225:             $this->compress = $compress;
 226:         else
 227:             $this->compress = false;
 228:     }
 229:     
 230:     function SetTitle($title, $isUTF8=false)
 231:     {
 232:         // Title of document
 233:         if($isUTF8)
 234:             $title = $this->_UTF8toUTF16($title);
 235:         $this->title = $title;
 236:     }
 237:     
 238:     function SetSubject($subject, $isUTF8=false)
 239:     {
 240:         // Subject of document
 241:         if($isUTF8)
 242:             $subject = $this->_UTF8toUTF16($subject);
 243:         $this->subject = $subject;
 244:     }
 245:     
 246:     function SetAuthor($author, $isUTF8=false)
 247:     {
 248:         // Author of document
 249:         if($isUTF8)
 250:             $author = $this->_UTF8toUTF16($author);
 251:         $this->author = $author;
 252:     }
 253:     
 254:     function SetKeywords($keywords, $isUTF8=false)
 255:     {
 256:         // Keywords of document
 257:         if($isUTF8)
 258:             $keywords = $this->_UTF8toUTF16($keywords);
 259:         $this->keywords = $keywords;
 260:     }
 261:     
 262:     function SetCreator($creator, $isUTF8=false)
 263:     {
 264:         // Creator of document
 265:         if($isUTF8)
 266:             $creator = $this->_UTF8toUTF16($creator);
 267:         $this->creator = $creator;
 268:     }
 269:     
 270:     function AliasNbPages($alias='{nb}')
 271:     {
 272:         // Define an alias for total number of pages
 273:         $this->AliasNbPages = $alias;
 274:     }
 275:     
 276:     function Error($msg)
 277:     {
 278:         // Fatal error
 279:         die('<b>FPDF error:</b> '.$msg);
 280:     }
 281:     
 282:     function Open()
 283:     {
 284:         // Begin document
 285:         $this->state = 1;
 286:     }
 287:     
 288:     function Close()
 289:     {
 290:         // Terminate document
 291:         if($this->state==3)
 292:             return;
 293:         if($this->page==0)
 294:             $this->AddPage();
 295:         // Page footer
 296:         $this->InFooter = true;
 297:         $this->Footer();
 298:         $this->InFooter = false;
 299:         // Close page
 300:         $this->_endpage();
 301:         // Close document
 302:         $this->_enddoc();
 303:     }
 304:     
 305:     function AddPage($orientation='', $size='')
 306:     {
 307:         // Start a new page
 308:         if($this->state==0)
 309:             $this->Open();
 310:         $family = $this->FontFamily;
 311:         $style = $this->FontStyle.($this->underline ? 'U' : '');
 312:         $fontsize = $this->FontSizePt;
 313:         $lw = $this->LineWidth;
 314:         $dc = $this->DrawColor;
 315:         $fc = $this->FillColor;
 316:         $tc = $this->TextColor;
 317:         $cf = $this->ColorFlag;
 318:         if($this->page>0)
 319:         {
 320:             // Page footer
 321:             $this->InFooter = true;
 322:             $this->Footer();
 323:             $this->InFooter = false;
 324:             // Close page
 325:             $this->_endpage();
 326:         }
 327:         // Start new page
 328:         $this->_beginpage($orientation,$size);
 329:         // Set line cap style to square
 330:         $this->_out('2 J');
 331:         // Set line width
 332:         $this->LineWidth = $lw;
 333:         $this->_out(sprintf('%.2F w',$lw*$this->k));
 334:         // Set font
 335:         if($family)
 336:             $this->SetFont($family,$style,$fontsize);
 337:         // Set colors
 338:         $this->DrawColor = $dc;
 339:         if($dc!='0 G')
 340:             $this->_out($dc);
 341:         $this->FillColor = $fc;
 342:         if($fc!='0 g')
 343:             $this->_out($fc);
 344:         $this->TextColor = $tc;
 345:         $this->ColorFlag = $cf;
 346:         // Page header
 347:         $this->InHeader = true;
 348:         $this->Header();
 349:         $this->InHeader = false;
 350:         // Restore line width
 351:         if($this->LineWidth!=$lw)
 352:         {
 353:             $this->LineWidth = $lw;
 354:             $this->_out(sprintf('%.2F w',$lw*$this->k));
 355:         }
 356:         // Restore font
 357:         if($family)
 358:             $this->SetFont($family,$style,$fontsize);
 359:         // Restore colors
 360:         if($this->DrawColor!=$dc)
 361:         {
 362:             $this->DrawColor = $dc;
 363:             $this->_out($dc);
 364:         }
 365:         if($this->FillColor!=$fc)
 366:         {
 367:             $this->FillColor = $fc;
 368:             $this->_out($fc);
 369:         }
 370:         $this->TextColor = $tc;
 371:         $this->ColorFlag = $cf;
 372:     }
 373:     
 374:     function Header()
 375:     {
 376:         // To be implemented in your own inherited class
 377:     }
 378:     
 379:     function Footer()
 380:     {
 381:         // To be implemented in your own inherited class
 382:     }
 383:     
 384:     function PageNo()
 385:     {
 386:         // Get current page number
 387:         return $this->page;
 388:     }
 389:     
 390:     function SetDrawColor($r, $g=null, $b=null)
 391:     {
 392:         // Set color for all stroking operations
 393:         if(($r==0 && $g==0 && $b==0) || $g===null)
 394:             $this->DrawColor = sprintf('%.3F G',$r/255);
 395:         else
 396:             $this->DrawColor = sprintf('%.3F %.3F %.3F RG',$r/255,$g/255,$b/255);
 397:         if($this->page>0)
 398:             $this->_out($this->DrawColor);
 399:     }
 400:     
 401:     function SetFillColor($r, $g=null, $b=null)
 402:     {
 403:         // Set color for all filling operations
 404:         if(($r==0 && $g==0 && $b==0) || $g===null)
 405:             $this->FillColor = sprintf('%.3F g',$r/255);
 406:         else
 407:             $this->FillColor = sprintf('%.3F %.3F %.3F rg',$r/255,$g/255,$b/255);
 408:         $this->ColorFlag = ($this->FillColor!=$this->TextColor);
 409:         if($this->page>0)
 410:             $this->_out($this->FillColor);
 411:     }
 412:     
 413:     function SetTextColor($r, $g=null, $b=null)
 414:     {
 415:         // Set color for text
 416:         if(($r==0 && $g==0 && $b==0) || $g===null)
 417:             $this->TextColor = sprintf('%.3F g',$r/255);
 418:         else
 419:             $this->TextColor = sprintf('%.3F %.3F %.3F rg',$r/255,$g/255,$b/255);
 420:         $this->ColorFlag = ($this->FillColor!=$this->TextColor);
 421:     }
 422:     
 423:     function GetStringWidth($s)
 424:     {
 425:         // Get width of a string in the current font
 426:         $s = (string)$s;
 427:         $cw = &$this->CurrentFont['cw'];
 428:         $w = 0;
 429:         $l = strlen($s);
 430:         for($i=0;$i<$l;$i++)
 431:             $w += $cw[$s[$i]];
 432:         return $w*$this->FontSize/1000;
 433:     }
 434:     
 435:     function SetLineWidth($width)
 436:     {
 437:         // Set line width
 438:         $this->LineWidth = $width;
 439:         if($this->page>0)
 440:             $this->_out(sprintf('%.2F w',$width*$this->k));
 441:     }
 442:     
 443:     function Line($x1, $y1, $x2, $y2)
 444:     {
 445:         // Draw a line
 446:         $this->_out(sprintf('%.2F %.2F m %.2F %.2F l S',$x1*$this->k,($this->h-$y1)*$this->k,$x2*$this->k,($this->h-$y2)*$this->k));
 447:     }
 448:     
 449:     function Rect($x, $y, $w, $h, $style='')
 450:     {
 451:         // Draw a rectangle
 452:         if($style=='F')
 453:             $op = 'f';
 454:         elseif($style=='FD' || $style=='DF')
 455:             $op = 'B';
 456:         else
 457:             $op = 'S';
 458:         $this->_out(sprintf('%.2F %.2F %.2F %.2F re %s',$x*$this->k,($this->h-$y)*$this->k,$w*$this->k,-$h*$this->k,$op));
 459:     }
 460:     
 461:     function AddFont($family, $style='', $file='')
 462:     {
 463:         // Add a TrueType, OpenType or Type1 font
 464:         $family = strtolower($family);
 465:         if($file=='')
 466:             $file = str_replace(' ','',$family).strtolower($style).'.php';
 467:         $style = strtoupper($style);
 468:         if($style=='IB')
 469:             $style = 'BI';
 470:         $fontkey = $family.$style;
 471:         if(isset($this->fonts[$fontkey]))
 472:             return;
 473:         $info = $this->_loadfont($file);
 474:         $info['i'] = count($this->fonts)+1;
 475:         if(!empty($info['diff']))
 476:         {
 477:             // Search existing encodings
 478:             $n = array_search($info['diff'],$this->diffs);
 479:             if(!$n)
 480:             {
 481:                 $n = count($this->diffs)+1;
 482:                 $this->diffs[$n] = $info['diff'];
 483:             }
 484:             $info['diffn'] = $n;
 485:         }
 486:         if(!empty($info['file']))
 487:         {
 488:             // Embedded font
 489:             if($info['type']=='TrueType')
 490:                 $this->FontFiles[$info['file']] = array('length1'=>$info['originalsize']);
 491:             else
 492:                 $this->FontFiles[$info['file']] = array('length1'=>$info['size1'], 'length2'=>$info['size2']);
 493:         }
 494:         $this->fonts[$fontkey] = $info;
 495:     }
 496:     
 497:     function SetFont($family, $style='', $size=0)
 498:     {
 499:         // Select a font; size given in points
 500:         if($family=='')
 501:             $family = $this->FontFamily;
 502:         else
 503:             $family = strtolower($family);
 504:         $style = strtoupper($style);
 505:         if(strpos($style,'U')!==false)
 506:         {
 507:             $this->underline = true;
 508:             $style = str_replace('U','',$style);
 509:         }
 510:         else
 511:             $this->underline = false;
 512:         if($style=='IB')
 513:             $style = 'BI';
 514:         if($size==0)
 515:             $size = $this->FontSizePt;
 516:         // Test if font is already selected
 517:         if($this->FontFamily==$family && $this->FontStyle==$style && $this->FontSizePt==$size)
 518:             return;
 519:         // Test if font is already loaded
 520:         $fontkey = $family.$style;
 521:         if(!isset($this->fonts[$fontkey]))
 522:         {
 523:             // Test if one of the core fonts
 524:             if($family=='arial')
 525:                 $family = 'helvetica';
 526:             if(in_array($family,$this->CoreFonts))
 527:             {
 528:                 if($family=='symbol' || $family=='zapfdingbats')
 529:                     $style = '';
 530:                 $fontkey = $family.$style;
 531:                 if(!isset($this->fonts[$fontkey]))
 532:                     $this->AddFont($family,$style);
 533:             }
 534:             else
 535:                 $this->Error('Undefined font: '.$family.' '.$style);
 536:         }
 537:         // Select it
 538:         $this->FontFamily = $family;
 539:         $this->FontStyle = $style;
 540:         $this->FontSizePt = $size;
 541:         $this->FontSize = $size/$this->k;
 542:         $this->CurrentFont = &$this->fonts[$fontkey];
 543:         if($this->page>0)
 544:             $this->_out(sprintf('BT /F%d %.2F Tf ET',$this->CurrentFont['i'],$this->FontSizePt));
 545:     }
 546:     
 547:     function SetFontSize($size)
 548:     {
 549:         // Set font size in points
 550:         if($this->FontSizePt==$size)
 551:             return;
 552:         $this->FontSizePt = $size;
 553:         $this->FontSize = $size/$this->k;
 554:         if($this->page>0)
 555:             $this->_out(sprintf('BT /F%d %.2F Tf ET',$this->CurrentFont['i'],$this->FontSizePt));
 556:     }
 557:     
 558:     function AddLink()
 559:     {
 560:         // Create a new internal link
 561:         $n = count($this->links)+1;
 562:         $this->links[$n] = array(0, 0);
 563:         return $n;
 564:     }
 565:     
 566:     function SetLink($link, $y=0, $page=-1)
 567:     {
 568:         // Set destination of internal link
 569:         if($y==-1)
 570:             $y = $this->y;
 571:         if($page==-1)
 572:             $page = $this->page;
 573:         $this->links[$link] = array($page, $y);
 574:     }
 575:     
 576:     function Link($x, $y, $w, $h, $link)
 577:     {
 578:         // Put a link on the page
 579:         $this->PageLinks[$this->page][] = array($x*$this->k, $this->hPt-$y*$this->k, $w*$this->k, $h*$this->k, $link);
 580:     }
 581:     
 582:     function Text($x, $y, $txt)
 583:     {
 584:         // Output a string
 585:         $s = sprintf('BT %.2F %.2F Td (%s) Tj ET',$x*$this->k,($this->h-$y)*$this->k,$this->_escape($txt));
 586:         if($this->underline && $txt!='')
 587:             $s .= ' '.$this->_dounderline($x,$y,$txt);
 588:         if($this->ColorFlag)
 589:             $s = 'q '.$this->TextColor.' '.$s.' Q';
 590:         $this->_out($s);
 591:     }
 592:     
 593:     function AcceptPageBreak()
 594:     {
 595:         // Accept automatic page break or not
 596:         return $this->AutoPageBreak;
 597:     }
 598:     
 599:     function Cell($w, $h=0, $txt='', $border=0, $ln=0, $align='', $fill=false, $link='')
 600:     {
 601:         // Output a cell
 602:         $k = $this->k;
 603:         if($this->y+$h>$this->PageBreakTrigger && !$this->InHeader && !$this->InFooter && $this->AcceptPageBreak())
 604:         {
 605:             // Automatic page break
 606:             $x = $this->x;
 607:             $ws = $this->ws;
 608:             if($ws>0)
 609:             {
 610:                 $this->ws = 0;
 611:                 $this->_out('0 Tw');
 612:             }
 613:             $this->AddPage($this->CurOrientation,$this->CurPageSize);
 614:             $this->x = $x;
 615:             if($ws>0)
 616:             {
 617:                 $this->ws = $ws;
 618:                 $this->_out(sprintf('%.3F Tw',$ws*$k));
 619:             }
 620:         }
 621:         if($w==0)
 622:             $w = $this->w-$this->rMargin-$this->x;
 623:         $s = '';
 624:         if($fill || $border==1)
 625:         {
 626:             if($fill)
 627:                 $op = ($border==1) ? 'B' : 'f';
 628:             else
 629:                 $op = 'S';
 630:             $s = sprintf('%.2F %.2F %.2F %.2F re %s ',$this->x*$k,($this->h-$this->y)*$k,$w*$k,-$h*$k,$op);
 631:         }
 632:         if(is_string($border))
 633:         {
 634:             $x = $this->x;
 635:             $y = $this->y;
 636:             if(strpos($border,'L')!==false)
 637:                 $s .= sprintf('%.2F %.2F m %.2F %.2F l S ',$x*$k,($this->h-$y)*$k,$x*$k,($this->h-($y+$h))*$k);
 638:             if(strpos($border,'T')!==false)
 639:                 $s .= sprintf('%.2F %.2F m %.2F %.2F l S ',$x*$k,($this->h-$y)*$k,($x+$w)*$k,($this->h-$y)*$k);
 640:             if(strpos($border,'R')!==false)
 641:                 $s .= sprintf('%.2F %.2F m %.2F %.2F l S ',($x+$w)*$k,($this->h-$y)*$k,($x+$w)*$k,($this->h-($y+$h))*$k);
 642:             if(strpos($border,'B')!==false)
 643:                 $s .= sprintf('%.2F %.2F m %.2F %.2F l S ',$x*$k,($this->h-($y+$h))*$k,($x+$w)*$k,($this->h-($y+$h))*$k);
 644:         }
 645:         if($txt!=='')
 646:         {
 647:             if($align=='R')
 648:                 $dx = $w-$this->cMargin-$this->GetStringWidth($txt);
 649:             elseif($align=='C')
 650:                 $dx = ($w-$this->GetStringWidth($txt))/2;
 651:             else
 652:                 $dx = $this->cMargin;
 653:             if($this->ColorFlag)
 654:                 $s .= 'q '.$this->TextColor.' ';
 655:             $txt2 = str_replace(')','\\)',str_replace('(','\\(',str_replace('\\','\\\\',$txt)));
 656:             $s .= sprintf('BT %.2F %.2F Td (%s) Tj ET',($this->x+$dx)*$k,($this->h-($this->y+.5*$h+.3*$this->FontSize))*$k,$txt2);
 657:             if($this->underline)
 658:                 $s .= ' '.$this->_dounderline($this->x+$dx,$this->y+.5*$h+.3*$this->FontSize,$txt);
 659:             if($this->ColorFlag)
 660:                 $s .= ' Q';
 661:             if($link)
 662:                 $this->Link($this->x+$dx,$this->y+.5*$h-.5*$this->FontSize,$this->GetStringWidth($txt),$this->FontSize,$link);
 663:         }
 664:         if($s)
 665:             $this->_out($s);
 666:         $this->lasth = $h;
 667:         if($ln>0)
 668:         {
 669:             // Go to next line
 670:             $this->y += $h;
 671:             if($ln==1)
 672:                 $this->x = $this->lMargin;
 673:         }
 674:         else
 675:             $this->x += $w;
 676:     }
 677:     
 678:     function MultiCell($w, $h, $txt, $border=0, $align='J', $fill=false)
 679:     {
 680:         // Output text with automatic or explicit line breaks
 681:         $cw = &$this->CurrentFont['cw'];
 682:         if($w==0)
 683:             $w = $this->w-$this->rMargin-$this->x;
 684:         $wmax = ($w-2*$this->cMargin)*1000/$this->FontSize;
 685:         $s = str_replace("\r",'',$txt);
 686:         $nb = strlen($s);
 687:         if($nb>0 && $s[$nb-1]=="\n")
 688:             $nb--;
 689:         $b = 0;
 690:         if($border)
 691:         {
 692:             if($border==1)
 693:             {
 694:                 $border = 'LTRB';
 695:                 $b = 'LRT';
 696:                 $b2 = 'LR';
 697:             }
 698:             else
 699:             {
 700:                 $b2 = '';
 701:                 if(strpos($border,'L')!==false)
 702:                     $b2 .= 'L';
 703:                 if(strpos($border,'R')!==false)
 704:                     $b2 .= 'R';
 705:                 $b = (strpos($border,'T')!==false) ? $b2.'T' : $b2;
 706:             }
 707:         }
 708:         $sep = -1;
 709:         $i = 0;
 710:         $j = 0;
 711:         $l = 0;
 712:         $ns = 0;
 713:         $nl = 1;
 714:         while($i<$nb)
 715:         {
 716:             // Get next character
 717:             $c = $s[$i];
 718:             if($c=="\n")
 719:             {
 720:                 // Explicit line break
 721:                 if($this->ws>0)
 722:                 {
 723:                     $this->ws = 0;
 724:                     $this->_out('0 Tw');
 725:                 }
 726:                 $this->Cell($w,$h,substr($s,$j,$i-$j),$b,2,$align,$fill);
 727:                 $i++;
 728:                 $sep = -1;
 729:                 $j = $i;
 730:                 $l = 0;
 731:                 $ns = 0;
 732:                 $nl++;
 733:                 if($border && $nl==2)
 734:                     $b = $b2;
 735:                 continue;
 736:             }
 737:             if($c==' ')
 738:             {
 739:                 $sep = $i;
 740:                 $ls = $l;
 741:                 $ns++;
 742:             }
 743:             $l += $cw[$c];
 744:             if($l>$wmax)
 745:             {
 746:                 // Automatic line break
 747:                 if($sep==-1)
 748:                 {
 749:                     if($i==$j)
 750:                         $i++;
 751:                     if($this->ws>0)
 752:                     {
 753:                         $this->ws = 0;
 754:                         $this->_out('0 Tw');
 755:                     }
 756:                     $this->Cell($w,$h,substr($s,$j,$i-$j),$b,2,$align,$fill);
 757:                 }
 758:                 else
 759:                 {
 760:                     if($align=='J')
 761:                     {
 762:                         $this->ws = ($ns>1) ? ($wmax-$ls)/1000*$this->FontSize/($ns-1) : 0;
 763:                         $this->_out(sprintf('%.3F Tw',$this->ws*$this->k));
 764:                     }
 765:                     $this->Cell($w,$h,substr($s,$j,$sep-$j),$b,2,$align,$fill);
 766:                     $i = $sep+1;
 767:                 }
 768:                 $sep = -1;
 769:                 $j = $i;
 770:                 $l = 0;
 771:                 $ns = 0;
 772:                 $nl++;
 773:                 if($border && $nl==2)
 774:                     $b = $b2;
 775:             }
 776:             else
 777:                 $i++;
 778:         }
 779:         // Last chunk
 780:         if($this->ws>0)
 781:         {
 782:             $this->ws = 0;
 783:             $this->_out('0 Tw');
 784:         }
 785:         if($border && strpos($border,'B')!==false)
 786:             $b .= 'B';
 787:         $this->Cell($w,$h,substr($s,$j,$i-$j),$b,2,$align,$fill);
 788:         $this->x = $this->lMargin;
 789:     }
 790:     
 791:     function Write($h, $txt, $link='')
 792:     {
 793:         // Output text in flowing mode
 794:         $cw = &$this->CurrentFont['cw'];
 795:         $w = $this->w-$this->rMargin-$this->x;
 796:         $wmax = ($w-2*$this->cMargin)*1000/$this->FontSize;
 797:         $s = str_replace("\r",'',$txt);
 798:         $nb = strlen($s);
 799:         $sep = -1;
 800:         $i = 0;
 801:         $j = 0;
 802:         $l = 0;
 803:         $nl = 1;
 804:         while($i<$nb)
 805:         {
 806:             // Get next character
 807:             $c = $s[$i];
 808:             if($c=="\n")
 809:             {
 810:                 // Explicit line break
 811:                 $this->Cell($w,$h,substr($s,$j,$i-$j),0,2,'',0,$link);
 812:                 $i++;
 813:                 $sep = -1;
 814:                 $j = $i;
 815:                 $l = 0;
 816:                 if($nl==1)
 817:                 {
 818:                     $this->x = $this->lMargin;
 819:                     $w = $this->w-$this->rMargin-$this->x;
 820:                     $wmax = ($w-2*$this->cMargin)*1000/$this->FontSize;
 821:                 }
 822:                 $nl++;
 823:                 continue;
 824:             }
 825:             if($c==' ')
 826:                 $sep = $i;
 827:             $l += $cw[$c];
 828:             if($l>$wmax)
 829:             {
 830:                 // Automatic line break
 831:                 if($sep==-1)
 832:                 {
 833:                     if($this->x>$this->lMargin)
 834:                     {
 835:                         // Move to next line
 836:                         $this->x = $this->lMargin;
 837:                         $this->y += $h;
 838:                         $w = $this->w-$this->rMargin-$this->x;
 839:                         $wmax = ($w-2*$this->cMargin)*1000/$this->FontSize;
 840:                         $i++;
 841:                         $nl++;
 842:                         continue;
 843:                     }
 844:                     if($i==$j)
 845:                         $i++;
 846:                     $this->Cell($w,$h,substr($s,$j,$i-$j),0,2,'',0,$link);
 847:                 }
 848:                 else
 849:                 {
 850:                     $this->Cell($w,$h,substr($s,$j,$sep-$j),0,2,'',0,$link);
 851:                     $i = $sep+1;
 852:                 }
 853:                 $sep = -1;
 854:                 $j = $i;
 855:                 $l = 0;
 856:                 if($nl==1)
 857:                 {
 858:                     $this->x = $this->lMargin;
 859:                     $w = $this->w-$this->rMargin-$this->x;
 860:                     $wmax = ($w-2*$this->cMargin)*1000/$this->FontSize;
 861:                 }
 862:                 $nl++;
 863:             }
 864:             else
 865:                 $i++;
 866:         }
 867:         // Last chunk
 868:         if($i!=$j)
 869:             $this->Cell($l/1000*$this->FontSize,$h,substr($s,$j),0,0,'',0,$link);
 870:     }
 871:     
 872:     function Ln($h=null)
 873:     {
 874:         // Line feed; default value is last cell height
 875:         $this->x = $this->lMargin;
 876:         if($h===null)
 877:             $this->y += $this->lasth;
 878:         else
 879:             $this->y += $h;
 880:     }
 881:     
 882:     function Image($file, $x=null, $y=null, $w=0, $h=0, $type='', $link='')
 883:     {
 884:         // Put an image on the page
 885:         if(!isset($this->images[$file]))
 886:         {
 887:             // First use of this image, get info
 888:             if($type=='')
 889:             {
 890:                 $pos = strrpos($file,'.');
 891:                 if(!$pos)
 892:                     $this->Error('Image file has no extension and no type was specified: '.$file);
 893:                 $type = substr($file,$pos+1);
 894:             }
 895:             $type = strtolower($type);
 896:             if($type=='jpeg')
 897:                 $type = 'jpg';
 898:             $mtd = '_parse'.$type;
 899:             if(!method_exists($this,$mtd))
 900:                 $this->Error('Unsupported image type: '.$type);
 901:             $info = $this->$mtd($file);
 902:             $info['i'] = count($this->images)+1;
 903:             $this->images[$file] = $info;
 904:         }
 905:         else
 906:             $info = $this->images[$file];
 907:     
 908:         // Automatic width and height calculation if needed
 909:         if($w==0 && $h==0)
 910:         {
 911:             // Put image at 96 dpi
 912:             $w = -96;
 913:             $h = -96;
 914:         }
 915:         if($w<0)
 916:             $w = -$info['w']*72/$w/$this->k;
 917:         if($h<0)
 918:             $h = -$info['h']*72/$h/$this->k;
 919:         if($w==0)
 920:             $w = $h*$info['w']/$info['h'];
 921:         if($h==0)
 922:             $h = $w*$info['h']/$info['w'];
 923:     
 924:         // Flowing mode
 925:         if($y===null)
 926:         {
 927:             if($this->y+$h>$this->PageBreakTrigger && !$this->InHeader && !$this->InFooter && $this->AcceptPageBreak())
 928:             {
 929:                 // Automatic page break
 930:                 $x2 = $this->x;
 931:                 $this->AddPage($this->CurOrientation,$this->CurPageSize);
 932:                 $this->x = $x2;
 933:             }
 934:             $y = $this->y;
 935:             $this->y += $h;
 936:         }
 937:     
 938:         if($x===null)
 939:             $x = $this->x;
 940:         $this->_out(sprintf('q %.2F 0 0 %.2F %.2F %.2F cm /I%d Do Q',$w*$this->k,$h*$this->k,$x*$this->k,($this->h-($y+$h))*$this->k,$info['i']));
 941:         if($link)
 942:             $this->Link($x,$y,$w,$h,$link);
 943:     }
 944:     
 945:     function GetX()
 946:     {
 947:         // Get x position
 948:         return $this->x;
 949:     }
 950:     
 951:     function SetX($x)
 952:     {
 953:         // Set x position
 954:         if($x>=0)
 955:             $this->x = $x;
 956:         else
 957:             $this->x = $this->w+$x;
 958:     }
 959:     
 960:     function GetY()
 961:     {
 962:         // Get y position
 963:         return $this->y;
 964:     }
 965:     
 966:     function SetY($y)
 967:     {
 968:         // Set y position and reset x
 969:         $this->x = $this->lMargin;
 970:         if($y>=0)
 971:             $this->y = $y;
 972:         else
 973:             $this->y = $this->h+$y;
 974:     }
 975:     
 976:     function SetXY($x, $y)
 977:     {
 978:         // Set x and y positions
 979:         $this->SetY($y);
 980:         $this->SetX($x);
 981:     }
 982:     
 983:     function Output($name='', $dest='')
 984:     {
 985:         // Output PDF to some destination
 986:         if($this->state<3)
 987:             $this->Close();
 988:         $dest = strtoupper($dest);
 989:         if($dest=='')
 990:         {
 991:             if($name=='')
 992:             {
 993:                 $name = 'doc.pdf';
 994:                 $dest = 'I';
 995:             }
 996:             else
 997:                 $dest = 'F';
 998:         }
 999:         switch($dest)
1000:         {
1001:             case 'I':
1002:                 // Send to standard output
1003:                 $this->_checkoutput();
1004:                 if(PHP_SAPI!='cli')
1005:                 {
1006:                     // We send to a browser
1007:                     header('Content-Type: application/pdf');
1008:                     header('Content-Disposition: inline; filename="'.$name.'"');
1009:                     header('Cache-Control: private, max-age=0, must-revalidate');
1010:                     header('Pragma: public');
1011:                 }
1012:                 echo $this->buffer;
1013:                 break;
1014:             case 'D':
1015:                 // Download file
1016:                 $this->_checkoutput();
1017:                 header('Content-Type: application/x-download');
1018:                 header('Content-Disposition: attachment; filename="'.$name.'"');
1019:                 header('Cache-Control: private, max-age=0, must-revalidate');
1020:                 header('Pragma: public');
1021:                 echo $this->buffer;
1022:                 break;
1023:             case 'F':
1024:                 // Save to local file
1025:                 $f = fopen($name,'wb');
1026:                 if(!$f)
1027:                     $this->Error('Unable to create output file: '.$name);
1028:                 fwrite($f,$this->buffer,strlen($this->buffer));
1029:                 fclose($f);
1030:                 break;
1031:             case 'S':
1032:                 // Return as a string
1033:                 return $this->buffer;
1034:             default:
1035:                 $this->Error('Incorrect output destination: '.$dest);
1036:         }
1037:         return '';
1038:     }
1039:     
1040:     /*******************************************************************************
1041:     *                                                                              *
1042:     *                              Protected methods                               *
1043:     *                                                                              *
1044:     *******************************************************************************/
1045:     function _dochecks()
1046:     {
1047:         // Check availability of %F
1048:         if(sprintf('%.1F',1.0)!='1.0')
1049:             $this->Error('This version of PHP is not supported');
1050:         // Check mbstring overloading
1051:         if(ini_get('mbstring.func_overload') & 2)
1052:             $this->Error('mbstring overloading must be disabled');
1053:         // Ensure runtime magic quotes are disabled
1054:         if(get_magic_quotes_runtime())
1055:             @set_magic_quotes_runtime(0);
1056:     }
1057:     
1058:     function _checkoutput()
1059:     {
1060:         if(PHP_SAPI!='cli')
1061:         {
1062:             if(headers_sent($file,$line))
1063:                 $this->Error("Some data has already been output, can't send PDF file (output started at $file:$line)");
1064:         }
1065:         if(ob_get_length())
1066:         {
1067:             // The output buffer is not empty
1068:             if(preg_match('/^(\xEF\xBB\xBF)?\s*$/',ob_get_contents()))
1069:             {
1070:                 // It contains only a UTF-8 BOM and/or whitespace, let's clean it
1071:                 ob_clean();
1072:             }
1073:             else
1074:                 $this->Error("Some data has already been output, can't send PDF file");
1075:         }
1076:     }
1077:     
1078:     function _getpagesize($size)
1079:     {
1080:         if(is_string($size))
1081:         {
1082:             $size = strtolower($size);
1083:             if(!isset($this->StdPageSizes[$size]))
1084:                 $this->Error('Unknown page size: '.$size);
1085:             $a = $this->StdPageSizes[$size];
1086:             return array($a[0]/$this->k, $a[1]/$this->k);
1087:         }
1088:         else
1089:         {
1090:             if($size[0]>$size[1])
1091:                 return array($size[1], $size[0]);
1092:             else
1093:                 return $size;
1094:         }
1095:     }
1096:     
1097:     function _beginpage($orientation, $size)
1098:     {
1099:         $this->page++;
1100:         $this->pages[$this->page] = '';
1101:         $this->state = 2;
1102:         $this->x = $this->lMargin;
1103:         $this->y = $this->tMargin;
1104:         $this->FontFamily = '';
1105:         // Check page size and orientation
1106:         if($orientation=='')
1107:             $orientation = $this->DefOrientation;
1108:         else
1109:             $orientation = strtoupper($orientation[0]);
1110:         if($size=='')
1111:             $size = $this->DefPageSize;
1112:         else
1113:             $size = $this->_getpagesize($size);
1114:         if($orientation!=$this->CurOrientation || $size[0]!=$this->CurPageSize[0] || $size[1]!=$this->CurPageSize[1])
1115:         {
1116:             // New size or orientation
1117:             if($orientation=='P')
1118:             {
1119:                 $this->w = $size[0];
1120:                 $this->h = $size[1];
1121:             }
1122:             else
1123:             {
1124:                 $this->w = $size[1];
1125:                 $this->h = $size[0];
1126:             }
1127:             $this->wPt = $this->w*$this->k;
1128:             $this->hPt = $this->h*$this->k;
1129:             $this->PageBreakTrigger = $this->h-$this->bMargin;
1130:             $this->CurOrientation = $orientation;
1131:             $this->CurPageSize = $size;
1132:         }
1133:         if($orientation!=$this->DefOrientation || $size[0]!=$this->DefPageSize[0] || $size[1]!=$this->DefPageSize[1])
1134:             $this->PageSizes[$this->page] = array($this->wPt, $this->hPt);
1135:     }
1136:     
1137:     function _endpage()
1138:     {
1139:         $this->state = 1;
1140:     }
1141:     
1142:     function _loadfont($font)
1143:     {
1144:         // Load a font definition file from the font directory
1145:         include($this->fontpath.$font);
1146:         $a = get_defined_vars();
1147:         if(!isset($a['name']))
1148:             $this->Error('Could not include font definition file');
1149:         return $a;
1150:     }
1151:     
1152:     function _escape($s)
1153:     {
1154:         // Escape special characters in strings
1155:         $s = str_replace('\\','\\\\',$s);
1156:         $s = str_replace('(','\\(',$s);
1157:         $s = str_replace(')','\\)',$s);
1158:         $s = str_replace("\r",'\\r',$s);
1159:         return $s;
1160:     }
1161:     
1162:     function _textstring($s)
1163:     {
1164:         // Format a text string
1165:         return '('.$this->_escape($s).')';
1166:     }
1167:     
1168:     function _UTF8toUTF16($s, $with_boom = true)
1169:     {
1170:         $res = "";
1171:         // Convert UTF-8 to UTF-16BE with BOM
1172:         if ($with_boom === true) {
1173:             $res = "\xFE\xFF";
1174:         }
1175:         $nb = strlen($s);
1176:         $i = 0;
1177:         while($i<$nb)
1178:         {
1179:             $c1 = ord($s[$i++]);
1180:             if($c1>=224)
1181:             {
1182:                 // 3-byte character
1183:                 $c2 = ord($s[$i++]);
1184:                 $c3 = ord($s[$i++]);
1185:                 $res .= chr((($c1 & 0x0F)<<4) + (($c2 & 0x3C)>>2));
1186:                 $res .= chr((($c2 & 0x03)<<6) + ($c3 & 0x3F));
1187:             }
1188:             elseif($c1>=192)
1189:             {
1190:                 // 2-byte character
1191:                 $c2 = ord($s[$i++]);
1192:                 $res .= chr(($c1 & 0x1C)>>2);
1193:                 $res .= chr((($c1 & 0x03)<<6) + ($c2 & 0x3F));
1194:             }
1195:             else
1196:             {
1197:                 // Single-byte character
1198:                 $res .= "\0".chr($c1);
1199:             }
1200:         }
1201:         return $res;
1202:     }
1203:     
1204:     function _dounderline($x, $y, $txt)
1205:     {
1206:         // Underline text
1207:         $up = $this->CurrentFont['up'];
1208:         $ut = $this->CurrentFont['ut'];
1209:         $w = $this->GetStringWidth($txt)+$this->ws*substr_count($txt,' ');
1210:         return sprintf('%.2F %.2F %.2F %.2F re f',$x*$this->k,($this->h-($y-$up/1000*$this->FontSize))*$this->k,$w*$this->k,-$ut/1000*$this->FontSizePt);
1211:     }
1212:     
1213:     function _parsejpg($file)
1214:     {
1215:         // Extract info from a JPEG file
1216:         $a = getimagesize($file);
1217:         if(!$a)
1218:             $this->Error('Missing or incorrect image file: '.$file);
1219:         if($a[2]!=2)
1220:             $this->Error('Not a JPEG file: '.$file);
1221:         if(!isset($a['channels']) || $a['channels']==3)
1222:             $colspace = 'DeviceRGB';
1223:         elseif($a['channels']==4)
1224:             $colspace = 'DeviceCMYK';
1225:         else
1226:             $colspace = 'DeviceGray';
1227:         $bpc = isset($a['bits']) ? $a['bits'] : 8;
1228:         $data = file_get_contents($file);
1229:         return array('w'=>$a[0], 'h'=>$a[1], 'cs'=>$colspace, 'bpc'=>$bpc, 'f'=>'DCTDecode', 'data'=>$data);
1230:     }
1231:     
1232:     function _parsepng($file)
1233:     {
1234:         // Extract info from a PNG file
1235:         $f = fopen($file,'rb');
1236:         if(!$f)
1237:             $this->Error('Can\'t open image file: '.$file);
1238:         $info = $this->_parsepngstream($f,$file);
1239:         fclose($f);
1240:         return $info;
1241:     }
1242:     
1243:     function _parsepngstream($f, $file)
1244:     {
1245:         // Check signature
1246:         if($this->_readstream($f,8)!=chr(137).'PNG'.chr(13).chr(10).chr(26).chr(10))
1247:             $this->Error('Not a PNG file: '.$file);
1248:     
1249:         // Read header chunk
1250:         $this->_readstream($f,4);
1251:         if($this->_readstream($f,4)!='IHDR')
1252:             $this->Error('Incorrect PNG file: '.$file);
1253:         $w = $this->_readint($f);
1254:         $h = $this->_readint($f);
1255:         $bpc = ord($this->_readstream($f,1));
1256:         if($bpc>8)
1257:             $this->Error('16-bit depth not supported: '.$file);
1258:         $ct = ord($this->_readstream($f,1));
1259:         if($ct==0 || $ct==4)
1260:             $colspace = 'DeviceGray';
1261:         elseif($ct==2 || $ct==6)
1262:             $colspace = 'DeviceRGB';
1263:         elseif($ct==3)
1264:             $colspace = 'Indexed';
1265:         else
1266:             $this->Error('Unknown color type: '.$file);
1267:         if(ord($this->_readstream($f,1))!=0)
1268:             $this->Error('Unknown compression method: '.$file);
1269:         if(ord($this->_readstream($f,1))!=0)
1270:             $this->Error('Unknown filter method: '.$file);
1271:         if(ord($this->_readstream($f,1))!=0)
1272:             $this->Error('Interlacing not supported: '.$file);
1273:         $this->_readstream($f,4);
1274:         $dp = '/Predictor 15 /Colors '.($colspace=='DeviceRGB' ? 3 : 1).' /BitsPerComponent '.$bpc.' /Columns '.$w;
1275:     
1276:         // Scan chunks looking for palette, transparency and image data
1277:         $pal = '';
1278:         $trns = '';
1279:         $data = '';
1280:         do
1281:         {
1282:             $n = $this->_readint($f);
1283:             $type = $this->_readstream($f,4);
1284:             if($type=='PLTE')
1285:             {
1286:                 // Read palette
1287:                 $pal = $this->_readstream($f,$n);
1288:                 $this->_readstream($f,4);
1289:             }
1290:             elseif($type=='tRNS')
1291:             {
1292:                 // Read transparency info
1293:                 $t = $this->_readstream($f,$n);
1294:                 if($ct==0)
1295:                     $trns = array(ord(substr($t,1,1)));
1296:                 elseif($ct==2)
1297:                     $trns = array(ord(substr($t,1,1)), ord(substr($t,3,1)), ord(substr($t,5,1)));
1298:                 else
1299:                 {
1300:                     $pos = strpos($t,chr(0));
1301:                     if($pos!==false)
1302:                         $trns = array($pos);
1303:                 }
1304:                 $this->_readstream($f,4);
1305:             }
1306:             elseif($type=='IDAT')
1307:             {
1308:                 // Read image data block
1309:                 $data .= $this->_readstream($f,$n);
1310:                 $this->_readstream($f,4);
1311:             }
1312:             elseif($type=='IEND')
1313:                 break;
1314:             else
1315:                 $this->_readstream($f,$n+4);
1316:         }
1317:         while($n);
1318:     
1319:         if($colspace=='Indexed' && empty($pal))
1320:             $this->Error('Missing palette in '.$file);
1321:         $info = array('w'=>$w, 'h'=>$h, 'cs'=>$colspace, 'bpc'=>$bpc, 'f'=>'FlateDecode', 'dp'=>$dp, 'pal'=>$pal, 'trns'=>$trns);
1322:         if($ct>=4)
1323:         {
1324:             // Extract alpha channel
1325:             if(!function_exists('gzuncompress'))
1326:                 $this->Error('Zlib not available, can\'t handle alpha channel: '.$file);
1327:             $data = gzuncompress($data);
1328:             $color = '';
1329:             $alpha = '';
1330:             if($ct==4)
1331:             {
1332:                 // Gray image
1333:                 $len = 2*$w;
1334:                 for($i=0;$i<$h;$i++)
1335:                 {
1336:                     $pos = (1+$len)*$i;
1337:                     $color .= $data[$pos];
1338:                     $alpha .= $data[$pos];
1339:                     $line = substr($data,$pos+1,$len);
1340:                     $color .= preg_replace('/(.)./s','$1',$line);
1341:                     $alpha .= preg_replace('/.(.)/s','$1',$line);
1342:                 }
1343:             }
1344:             else
1345:             {
1346:                 // RGB image
1347:                 $len = 4*$w;
1348:                 for($i=0;$i<$h;$i++)
1349:                 {
1350:                     $pos = (1+$len)*$i;
1351:                     $color .= $data[$pos];
1352:                     $alpha .= $data[$pos];
1353:                     $line = substr($data,$pos+1,$len);
1354:                     $color .= preg_replace('/(.{3})./s','$1',$line);
1355:                     $alpha .= preg_replace('/.{3}(.)/s','$1',$line);
1356:                 }
1357:             }
1358:             unset($data);
1359:             $data = gzcompress($color);
1360:             $info['smask'] = gzcompress($alpha);
1361:             if($this->PDFVersion<'1.4')
1362:                 $this->PDFVersion = '1.4';
1363:         }
1364:         $info['data'] = $data;
1365:         return $info;
1366:     }
1367:     
1368:     function _readstream($f, $n)
1369:     {
1370:         // Read n bytes from stream
1371:         $res = '';
1372:         while($n>0 && !feof($f))
1373:         {
1374:             $s = fread($f,$n);
1375:             if($s===false)
1376:                 $this->Error('Error while reading stream');
1377:             $n -= strlen($s);
1378:             $res .= $s;
1379:         }
1380:         if($n>0)
1381:             $this->Error('Unexpected end of stream');
1382:         return $res;
1383:     }
1384:     
1385:     function _readint($f)
1386:     {
1387:         // Read a 4-byte integer from stream
1388:         $a = unpack('Ni',$this->_readstream($f,4));
1389:         return $a['i'];
1390:     }
1391:     
1392:     function _parsegif($file)
1393:     {
1394:         // Extract info from a GIF file (via PNG conversion)
1395:         if(!function_exists('imagepng'))
1396:             $this->Error('GD extension is required for GIF support');
1397:         if(!function_exists('imagecreatefromgif'))
1398:             $this->Error('GD has no GIF read support');
1399:         $im = imagecreatefromgif($file);
1400:         if(!$im)
1401:             $this->Error('Missing or incorrect image file: '.$file);
1402:         imageinterlace($im,0);
1403:         $f = @fopen('php://temp','rb+');
1404:         if($f)
1405:         {
1406:             // Perform conversion in memory
1407:             ob_start();
1408:             imagepng($im);
1409:             $data = ob_get_clean();
1410:             imagedestroy($im);
1411:             fwrite($f,$data);
1412:             rewind($f);
1413:             $info = $this->_parsepngstream($f,$file);
1414:             fclose($f);
1415:         }
1416:         else
1417:         {
1418:             // Use temporary file
1419:             $tmp = tempnam('.','gif');
1420:             if(!$tmp)
1421:                 $this->Error('Unable to create a temporary file');
1422:             if(!imagepng($im,$tmp))
1423:                 $this->Error('Error while saving to temporary file');
1424:             imagedestroy($im);
1425:             $info = $this->_parsepng($tmp);
1426:             unlink($tmp);
1427:         }
1428:         return $info;
1429:     }
1430:     
1431:     function _newobj()
1432:     {
1433:         // Begin a new object
1434:         $this->n++;
1435:         $this->offsets[$this->n] = strlen($this->buffer);
1436:         $this->_out($this->n.' 0 obj');
1437:     }
1438:     
1439:     function _putstream($s)
1440:     {
1441:         $this->_out('stream');
1442:         $this->_out($s);
1443:         $this->_out('endstream');
1444:     }
1445:     
1446:     function _out($s)
1447:     {
1448:         // Add a line to the document
1449:         if($this->state==2)
1450:             $this->pages[$this->page] .= $s."\n";
1451:         else
1452:             $this->buffer .= $s."\n";
1453:     }
1454:     
1455:     function _putpages()
1456:     {
1457:         $nb = $this->page;
1458:         if(!empty($this->AliasNbPages))
1459:         {
1460:             // Replace number of pages
1461:             for($n=1;$n<=$nb;$n++)
1462:                 $this->pages[$n] = str_replace($this->AliasNbPages,$nb,$this->pages[$n]);
1463:         }
1464:         if($this->DefOrientation=='P')
1465:         {
1466:             $wPt = $this->DefPageSize[0]*$this->k;
1467:             $hPt = $this->DefPageSize[1]*$this->k;
1468:         }
1469:         else
1470:         {
1471:             $wPt = $this->DefPageSize[1]*$this->k;
1472:             $hPt = $this->DefPageSize[0]*$this->k;
1473:         }
1474:         $filter = ($this->compress) ? '/Filter /FlateDecode ' : '';
1475:         for($n=1;$n<=$nb;$n++)
1476:         {
1477:             // Page
1478:             $this->_newobj();
1479:             $this->_out('<</Type /Page');
1480:             $this->_out('/Parent 1 0 R');
1481:             if(isset($this->PageSizes[$n]))
1482:                 $this->_out(sprintf('/MediaBox [0 0 %.2F %.2F]',$this->PageSizes[$n][0],$this->PageSizes[$n][1]));
1483:             $this->_out('/Resources 2 0 R');
1484:             if(isset($this->PageLinks[$n]))
1485:             {
1486:                 // Links
1487:                 $annots = '/Annots [';
1488:                 foreach($this->PageLinks[$n] as $pl)
1489:                 {
1490:                     $rect = sprintf('%.2F %.2F %.2F %.2F',$pl[0],$pl[1],$pl[0]+$pl[2],$pl[1]-$pl[3]);
1491:                     $annots .= '<</Type /Annot /Subtype /Link /Rect ['.$rect.'] /Border [0 0 0] ';
1492:                     if(is_string($pl[4]))
1493:                         $annots .= '/A <</S /URI /URI '.$this->_textstring($pl[4]).'>>>>';
1494:                     else
1495:                     {
1496:                         $l = $this->links[$pl[4]];
1497:                         $h = isset($this->PageSizes[$l[0]]) ? $this->PageSizes[$l[0]][1] : $hPt;
1498:                         $annots .= sprintf('/Dest [%d 0 R /XYZ 0 %.2F null]>>',1+2*$l[0],$h-$l[1]*$this->k);
1499:                     }
1500:                 }
1501:                 $this->_out($annots.']');
1502:             }
1503:             if($this->PDFVersion>'1.3')
1504:                 $this->_out('/Group <</Type /Group /S /Transparency /CS /DeviceRGB>>');
1505:             $this->_out('/Contents '.($this->n+1).' 0 R>>');
1506:             $this->_out('endobj');
1507:             // Page content
1508:             $p = ($this->compress) ? gzcompress($this->pages[$n]) : $this->pages[$n];
1509:             $this->_newobj();
1510:             $this->_out('<<'.$filter.'/Length '.strlen($p).'>>');
1511:             $this->_putstream($p);
1512:             $this->_out('endobj');
1513:         }
1514:         // Pages root
1515:         $this->offsets[1] = strlen($this->buffer);
1516:         $this->_out('1 0 obj');
1517:         $this->_out('<</Type /Pages');
1518:         $kids = '/Kids [';
1519:         for($i=0;$i<$nb;$i++)
1520:             $kids .= (3+2*$i).' 0 R ';
1521:         $this->_out($kids.']');
1522:         $this->_out('/Count '.$nb);
1523:         $this->_out(sprintf('/MediaBox [0 0 %.2F %.2F]',$wPt,$hPt));
1524:         $this->_out('>>');
1525:         $this->_out('endobj');
1526:     }
1527:     
1528:     function _putfonts()
1529:     {
1530:         $nf = $this->n;
1531:         foreach($this->diffs as $diff)
1532:         {
1533:             // Encodings
1534:             $this->_newobj();
1535:             $this->_out('<</Type /Encoding /BaseEncoding /WinAnsiEncoding /Differences ['.$diff.']>>');
1536:             $this->_out('endobj');
1537:         }
1538:         foreach($this->FontFiles as $file=>$info)
1539:         {
1540:             // Font file embedding
1541:             $this->_newobj();
1542:             $this->FontFiles[$file]['n'] = $this->n;
1543:             $font = file_get_contents($this->fontpath.$file,true);
1544:             if(!$font)
1545:                 $this->Error('Font file not found: '.$file);
1546:             $compressed = (substr($file,-2)=='.z');
1547:             if(!$compressed && isset($info['length2']))
1548:                 $font = substr($font,6,$info['length1']).substr($font,6+$info['length1']+6,$info['length2']);
1549:             $this->_out('<</Length '.strlen($font));
1550:             if($compressed)
1551:                 $this->_out('/Filter /FlateDecode');
1552:             $this->_out('/Length1 '.$info['length1']);
1553:             if(isset($info['length2']))
1554:                 $this->_out('/Length2 '.$info['length2'].' /Length3 0');
1555:             $this->_out('>>');
1556:             $this->_putstream($font);
1557:             $this->_out('endobj');
1558:         }
1559:         foreach($this->fonts as $k=>$font)
1560:         {
1561:             // Font objects
1562:             $this->fonts[$k]['n'] = $this->n+1;
1563:             $type = $font['type'];
1564:             $name = $font['name'];
1565:             if($type=='Core')
1566:             {
1567:                 // Core font
1568:                 $this->_newobj();
1569:                 $this->_out('<</Type /Font');
1570:                 $this->_out('/BaseFont /'.$name);
1571:                 $this->_out('/Subtype /Type1');
1572:                 if($name!='Symbol' && $name!='ZapfDingbats')
1573:                     $this->_out('/Encoding /WinAnsiEncoding');
1574:                 $this->_out('>>');
1575:                 $this->_out('endobj');
1576:             }
1577:             elseif($type=='Type1' || $type=='TrueType')
1578:             {
1579:                 // Additional Type1 or TrueType/OpenType font
1580:                 $this->_newobj();
1581:                 $this->_out('<</Type /Font');
1582:                 $this->_out('/BaseFont /'.$name);
1583:                 $this->_out('/Subtype /'.$type);
1584:                 $this->_out('/FirstChar 32 /LastChar 255');
1585:                 $this->_out('/Widths '.($this->n+1).' 0 R');
1586:                 $this->_out('/FontDescriptor '.($this->n+2).' 0 R');
1587:                 if(isset($font['diffn']))
1588:                     $this->_out('/Encoding '.($nf+$font['diffn']).' 0 R');
1589:                 else
1590:                     $this->_out('/Encoding /WinAnsiEncoding');
1591:                 $this->_out('>>');
1592:                 $this->_out('endobj');
1593:                 // Widths
1594:                 $this->_newobj();
1595:                 $cw = &$font['cw'];
1596:                 $s = '[';
1597:                 for($i=32;$i<=255;$i++)
1598:                     $s .= $cw[chr($i)].' ';
1599:                 $this->_out($s.']');
1600:                 $this->_out('endobj');
1601:                 // Descriptor
1602:                 $this->_newobj();
1603:                 $s = '<</Type /FontDescriptor /FontName /'.$name;
1604:                 foreach($font['desc'] as $l=>$v)
1605:                     $s .= ' /'.$l.' '.$v;
1606:                 if(!empty($font['file']))
1607:                     $s .= ' /FontFile'.($type=='Type1' ? '' : '2').' '.$this->FontFiles[$font['file']]['n'].' 0 R';
1608:                 $this->_out($s.'>>');
1609:                 $this->_out('endobj');
1610:             }
1611:             else
1612:             {
1613:                 // Allow for additional types
1614:                 $mtd = '_put'.strtolower($type);
1615:                 if(!method_exists($this,$mtd))
1616:                     $this->Error('Unsupported font type: '.$type);
1617:                 $this->$mtd($font);
1618:             }
1619:         }
1620:     }
1621:     
1622:     function _putimages()
1623:     {
1624:         foreach(array_keys($this->images) as $file)
1625:         {
1626:             $this->_putimage($this->images[$file]);
1627:             unset($this->images[$file]['data']);
1628:             unset($this->images[$file]['smask']);
1629:         }
1630:     }
1631:     
1632:     function _putimage(&$info)
1633:     {
1634:         $this->_newobj();
1635:         $info['n'] = $this->n;
1636:         $this->_out('<</Type /XObject');
1637:         $this->_out('/Subtype /Image');
1638:         $this->_out('/Width '.$info['w']);
1639:         $this->_out('/Height '.$info['h']);
1640:         if($info['cs']=='Indexed')
1641:             $this->_out('/ColorSpace [/Indexed /DeviceRGB '.(strlen($info['pal'])/3-1).' '.($this->n+1).' 0 R]');
1642:         else
1643:         {
1644:             $this->_out('/ColorSpace /'.$info['cs']);
1645:             if($info['cs']=='DeviceCMYK')
1646:                 $this->_out('/Decode [1 0 1 0 1 0 1 0]');
1647:         }
1648:         $this->_out('/BitsPerComponent '.$info['bpc']);
1649:         if(isset($info['f']))
1650:             $this->_out('/Filter /'.$info['f']);
1651:         if(isset($info['dp']))
1652:             $this->_out('/DecodeParms <<'.$info['dp'].'>>');
1653:         if(isset($info['trns']) && is_array($info['trns']))
1654:         {
1655:             $trns = '';
1656:             for($i=0;$i<count($info['trns']);$i++)
1657:                 $trns .= $info['trns'][$i].' '.$info['trns'][$i].' ';
1658:             $this->_out('/Mask ['.$trns.']');
1659:         }
1660:         if(isset($info['smask']))
1661:             $this->_out('/SMask '.($this->n+1).' 0 R');
1662:         $this->_out('/Length '.strlen($info['data']).'>>');
1663:         $this->_putstream($info['data']);
1664:         $this->_out('endobj');
1665:         // Soft mask
1666:         if(isset($info['smask']))
1667:         {
1668:             $dp = '/Predictor 15 /Colors 1 /BitsPerComponent 8 /Columns '.$info['w'];
1669:             $smask = array('w'=>$info['w'], 'h'=>$info['h'], 'cs'=>'DeviceGray', 'bpc'=>8, 'f'=>$info['f'], 'dp'=>$dp, 'data'=>$info['smask']);
1670:             $this->_putimage($smask);
1671:         }
1672:         // Palette
1673:         if($info['cs']=='Indexed')
1674:         {
1675:             $filter = ($this->compress) ? '/Filter /FlateDecode ' : '';
1676:             $pal = ($this->compress) ? gzcompress($info['pal']) : $info['pal'];
1677:             $this->_newobj();
1678:             $this->_out('<<'.$filter.'/Length '.strlen($pal).'>>');
1679:             $this->_putstream($pal);
1680:             $this->_out('endobj');
1681:         }
1682:     }
1683:     
1684:     function _putxobjectdict()
1685:     {
1686:         foreach($this->images as $image)
1687:             $this->_out('/I'.$image['i'].' '.$image['n'].' 0 R');
1688:     }
1689:     
1690:     function _putresourcedict()
1691:     {
1692:         $this->_out('/ProcSet [/PDF /Text /ImageB /ImageC /ImageI]');
1693:         $this->_out('/Font <<');
1694:         foreach($this->fonts as $font)
1695:             $this->_out('/F'.$font['i'].' '.$font['n'].' 0 R');
1696:         $this->_out('>>');
1697:         $this->_out('/XObject <<');
1698:         $this->_putxobjectdict();
1699:         $this->_out('>>');
1700:     }
1701:     
1702:     function _putresources()
1703:     {
1704:         $this->_putfonts();
1705:         $this->_putimages();
1706:         // Resource dictionary
1707:         $this->offsets[2] = strlen($this->buffer);
1708:         $this->_out('2 0 obj');
1709:         $this->_out('<<');
1710:         $this->_putresourcedict();
1711:         $this->_out('>>');
1712:         $this->_out('endobj');
1713:     }
1714:     
1715:     function _putinfo()
1716:     {
1717:         $this->_out('/Producer '.$this->_textstring('FPDF '.FPDF_VERSION));
1718:         if(!empty($this->title))
1719:             $this->_out('/Title '.$this->_textstring($this->title));
1720:         if(!empty($this->subject))
1721:             $this->_out('/Subject '.$this->_textstring($this->subject));
1722:         if(!empty($this->author))
1723:             $this->_out('/Author '.$this->_textstring($this->author));
1724:         if(!empty($this->keywords))
1725:             $this->_out('/Keywords '.$this->_textstring($this->keywords));
1726:         if(!empty($this->creator))
1727:             $this->_out('/Creator '.$this->_textstring($this->creator));
1728:         $this->_out('/CreationDate '.$this->_textstring('D:'.@date('YmdHis')));
1729:     }
1730:     
1731:     function _putcatalog()
1732:     {
1733:         $this->_out('/Type /Catalog');
1734:         $this->_out('/Pages 1 0 R');
1735:         if($this->ZoomMode=='fullpage')
1736:             $this->_out('/OpenAction [3 0 R /Fit]');
1737:         elseif($this->ZoomMode=='fullwidth')
1738:             $this->_out('/OpenAction [3 0 R /FitH null]');
1739:         elseif($this->ZoomMode=='real')
1740:             $this->_out('/OpenAction [3 0 R /XYZ null null 1]');
1741:         elseif(!is_string($this->ZoomMode))
1742:             $this->_out('/OpenAction [3 0 R /XYZ null null '.sprintf('%.2F',$this->ZoomMode/100).']');
1743:         if($this->LayoutMode=='single')
1744:             $this->_out('/PageLayout /SinglePage');
1745:         elseif($this->LayoutMode=='continuous')
1746:             $this->_out('/PageLayout /OneColumn');
1747:         elseif($this->LayoutMode=='two')
1748:             $this->_out('/PageLayout /TwoColumnLeft');
1749:     }
1750:     
1751:     function _putheader()
1752:     {
1753:         $this->_out('%PDF-'.$this->PDFVersion);
1754:     }
1755:     
1756:     function _puttrailer()
1757:     {
1758:         $this->_out('/Size '.($this->n+1));
1759:         $this->_out('/Root '.$this->n.' 0 R');
1760:         $this->_out('/Info '.($this->n-1).' 0 R');
1761:     }
1762:     
1763:     function _enddoc()
1764:     {
1765:         $this->_putheader();
1766:         $this->_putpages();
1767:         $this->_putresources();
1768:         // Info
1769:         $this->_newobj();
1770:         $this->_out('<<');
1771:         $this->_putinfo();
1772:         $this->_out('>>');
1773:         $this->_out('endobj');
1774:         // Catalog
1775:         $this->_newobj();
1776:         $this->_out('<<');
1777:         $this->_putcatalog();
1778:         $this->_out('>>');
1779:         $this->_out('endobj');
1780:         // Cross-ref
1781:         $o = strlen($this->buffer);
1782:         $this->_out('xref');
1783:         $this->_out('0 '.($this->n+1));
1784:         $this->_out('0000000000 65535 f ');
1785:         for($i=1;$i<=$this->n;$i++)
1786:             $this->_out(sprintf('%010d 00000 n ',$this->offsets[$i]));
1787:         // Trailer
1788:         $this->_out('trailer');
1789:         $this->_out('<<');
1790:         $this->_puttrailer();
1791:         $this->_out('>>');
1792:         $this->_out('startxref');
1793:         $this->_out($o);
1794:         $this->_out('%%EOF');
1795:         $this->state = 3;
1796:     }
1797: // End of class
1798: }
1799: 
1800: // Handle special IE contype request
1801: if(isset($_SERVER['HTTP_USER_AGENT']) && $_SERVER['HTTP_USER_AGENT']=='contype')
1802: {
1803:     header('Content-Type: application/pdf');
1804:     exit;
1805: }
1806: