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fpdf.php

<?php
/*******************************************************************************
* Software: FPDF                                                               *
* Version:  1.53                                                               *
* Date:     2004-12-31                                                         *
* Author:   Olivier PLATHEY                                                    *
* License:  Freeware                                                           *
*                                                                              *
* You may use, modify and redistribute this software as you wish.              *
*******************************************************************************/

if(!class_exists('FPDF'))
{
define('FPDF_VERSION','1.53');

class FPDF
{
//Private properties
var $page;               //current page number
var $n;                  //current object number
var $offsets;            //array of object offsets
var $buffer;             //buffer holding in-memory PDF
var $pages;              //array containing pages
var $state;              //current document state
var $compress;           //compression flag
var $DefOrientation;     //default orientation
var $CurOrientation;     //current orientation
var $OrientationChanges; //array indicating orientation changes
var $k;                  //scale factor (number of points in user unit)
var $fwPt,$fhPt;         //dimensions of page format in points
var $fw,$fh;             //dimensions of page format in user unit
var $wPt,$hPt;           //current dimensions of page in points
var $w,$h;               //current dimensions of page in user unit
var $lMargin;            //left margin
var $tMargin;            //top margin
var $rMargin;            //right margin
var $bMargin;            //page break margin
var $cMargin;            //cell margin
var $x,$y;               //current position in user unit for cell positioning
var $lasth;              //height of last cell printed
var $LineWidth;          //line width in user unit
var $CoreFonts;          //array of standard font names
var $fonts;              //array of used fonts
var $FontFiles;          //array of font files
var $diffs;              //array of encoding differences
var $images;             //array of used images
var $PageLinks;          //array of links in pages
var $links;              //array of internal links
var $FontFamily;         //current font family
var $FontStyle;          //current font style
var $underline;          //underlining flag
var $CurrentFont;        //current font info
var $FontSizePt;         //current font size in points
var $FontSize;           //current font size in user unit
var $DrawColor;          //commands for drawing color
var $FillColor;          //commands for filling color
var $TextColor;          //commands for text color
var $ColorFlag;          //indicates whether fill and text colors are different
var $ws;                 //word spacing
var $AutoPageBreak;      //automatic page breaking
var $PageBreakTrigger;   //threshold used to trigger page breaks
var $InFooter;           //flag set when processing footer
var $ZoomMode;           //zoom display mode
var $LayoutMode;         //layout display mode
var $title;              //title
var $subject;            //subject
var $author;             //author
var $keywords;           //keywords
var $creator;            //creator
var $AliasNbPages;       //alias for total number of pages
var $PDFVersion;         //PDF version number

/*******************************************************************************
*                                                                              *
*                               Public methods                                 *
*                                                                              *
*******************************************************************************/
function FPDF($orientation='P',$unit='mm',$format='A4')
{
      //Some checks
      $this->_dochecks();
      //Initialization of properties
      $this->page=0;
      $this->n=2;
      $this->buffer='';
      $this->pages=array();
      $this->OrientationChanges=array();
      $this->state=0;
      $this->fonts=array();
      $this->FontFiles=array();
      $this->diffs=array();
      $this->images=array();
      $this->links=array();
      $this->InFooter=false;
      $this->lasth=0;
      $this->FontFamily='';
      $this->FontStyle='';
      $this->FontSizePt=12;
      $this->underline=false;
      $this->DrawColor='0 G';
      $this->FillColor='0 g';
      $this->TextColor='0 g';
      $this->ColorFlag=false;
      $this->ws=0;
      //Standard fonts
      $this->CoreFonts=array('courier'=>'Courier','courierB'=>'Courier-Bold','courierI'=>'Courier-Oblique','courierBI'=>'Courier-BoldOblique',
            'helvetica'=>'Helvetica','helveticaB'=>'Helvetica-Bold','helveticaI'=>'Helvetica-Oblique','helveticaBI'=>'Helvetica-BoldOblique',
            'times'=>'Times-Roman','timesB'=>'Times-Bold','timesI'=>'Times-Italic','timesBI'=>'Times-BoldItalic',
            'symbol'=>'Symbol','zapfdingbats'=>'ZapfDingbats');
      //Scale factor
      if($unit=='pt')
            $this->k=1;
      elseif($unit=='mm')
            $this->k=72/25.4;
      elseif($unit=='cm')
            $this->k=72/2.54;
      elseif($unit=='in')
            $this->k=72;
      else
            $this->Error('Incorrect unit: '.$unit);
      //Page format
      if(is_string($format))
      {
            $format=strtolower($format);
            if($format=='a3')
                  $format=array(841.89,1190.55);
            elseif($format=='a4')
                  $format=array(595.28,841.89);
            elseif($format=='a5')
                  $format=array(420.94,595.28);
            elseif($format=='letter')
                  $format=array(612,792);
            elseif($format=='legal')
                  $format=array(612,1008);
            else
                  $this->Error('Unknown page format: '.$format);
            $this->fwPt=$format[0];
            $this->fhPt=$format[1];
      }
      else
      {
            $this->fwPt=$format[0]*$this->k;
            $this->fhPt=$format[1]*$this->k;
      }
      $this->fw=$this->fwPt/$this->k;
      $this->fh=$this->fhPt/$this->k;
      //Page orientation
      $orientation=strtolower($orientation);
      if($orientation=='p' || $orientation=='portrait')
      {
            $this->DefOrientation='P';
            $this->wPt=$this->fwPt;
            $this->hPt=$this->fhPt;
      }
      elseif($orientation=='l' || $orientation=='landscape')
      {
            $this->DefOrientation='L';
            $this->wPt=$this->fhPt;
            $this->hPt=$this->fwPt;
      }
      else
            $this->Error('Incorrect orientation: '.$orientation);
      $this->CurOrientation=$this->DefOrientation;
      $this->w=$this->wPt/$this->k;
      $this->h=$this->hPt/$this->k;
      //Page margins (1 cm)
      $margin=28.35/$this->k;
      $this->SetMargins($margin,$margin);
      //Interior cell margin (1 mm)
      $this->cMargin=$margin/10;
      //Line width (0.2 mm)
      $this->LineWidth=.567/$this->k;
      //Automatic page break
      $this->SetAutoPageBreak(true,2*$margin);
      //Full width display mode
      $this->SetDisplayMode('fullwidth');
      //Enable compression
      $this->SetCompression(true);
      //Set default PDF version number
      $this->PDFVersion='1.3';
}

function SetMargins($left,$top,$right=-1)
{
      //Set left, top and right margins
      $this->lMargin=$left;
      $this->tMargin=$top;
      if($right==-1)
            $right=$left;
      $this->rMargin=$right;
}

function SetLeftMargin($margin)
{
      //Set left margin
      $this->lMargin=$margin;
      if($this->page>0 && $this->x<$margin)
            $this->x=$margin;
}

function SetTopMargin($margin)
{
      //Set top margin
      $this->tMargin=$margin;
}

function SetRightMargin($margin)
{
      //Set right margin
      $this->rMargin=$margin;
}

function SetAutoPageBreak($auto,$margin=0)
{
      //Set auto page break mode and triggering margin
      $this->AutoPageBreak=$auto;
      $this->bMargin=$margin;
      $this->PageBreakTrigger=$this->h-$margin;
}

function SetDisplayMode($zoom,$layout='continuous')
{
      //Set display mode in viewer
      if($zoom=='fullpage' || $zoom=='fullwidth' || $zoom=='real' || $zoom=='default' || !is_string($zoom))
            $this->ZoomMode=$zoom;
      else
            $this->Error('Incorrect zoom display mode: '.$zoom);
      if($layout=='single' || $layout=='continuous' || $layout=='two' || $layout=='default')
            $this->LayoutMode=$layout;
      else
            $this->Error('Incorrect layout display mode: '.$layout);
}

function SetCompression($compress)
{
      //Set page compression
      if(function_exists('gzcompress'))
            $this->compress=$compress;
      else
            $this->compress=false;
}

function SetTitle($title)
{
      //Title of document
      $this->title=$title;
}

function SetSubject($subject)
{
      //Subject of document
      $this->subject=$subject;
}

function SetAuthor($author)
{
      //Author of document
      $this->author=$author;
}

function SetKeywords($keywords)
{
      //Keywords of document
      $this->keywords=$keywords;
}

function SetCreator($creator)
{
      //Creator of document
      $this->creator=$creator;
}

function AliasNbPages($alias='{nb}')
{
      //Define an alias for total number of pages
      $this->AliasNbPages=$alias;
}

function Error($msg)
{
      //Fatal error
      die('<B>FPDF error: </B>'.$msg);
}

function Open()
{
      //Begin document
      $this->state=1;
}

function Close()
{
      //Terminate document
      if($this->state==3)
            return;
      if($this->page==0)
            $this->AddPage();
      //Page footer
      $this->InFooter=true;
      $this->Footer();
      $this->InFooter=false;
      //Close page
      $this->_endpage();
      //Close document
      $this->_enddoc();
}

function AddPage($orientation='')
{
      //Start a new page
      if($this->state==0)
            $this->Open();
      $family=$this->FontFamily;
      $style=$this->FontStyle.($this->underline ? 'U' : '');
      $size=$this->FontSizePt;
      $lw=$this->LineWidth;
      $dc=$this->DrawColor;
      $fc=$this->FillColor;
      $tc=$this->TextColor;
      $cf=$this->ColorFlag;
      if($this->page>0)
      {
            //Page footer
            $this->InFooter=true;
            $this->Footer();
            $this->InFooter=false;
            //Close page
            $this->_endpage();
      }
      //Start new page
      $this->_beginpage($orientation);
      //Set line cap style to square
      $this->_out('2 J');
      //Set line width
      $this->LineWidth=$lw;
      $this->_out(sprintf('%.2f w',$lw*$this->k));
      //Set font
      if($family)
            $this->SetFont($family,$style,$size);
      //Set colors
      $this->DrawColor=$dc;
      if($dc!='0 G')
            $this->_out($dc);
      $this->FillColor=$fc;
      if($fc!='0 g')
            $this->_out($fc);
      $this->TextColor=$tc;
      $this->ColorFlag=$cf;
      //Page header
      $this->Header();
      //Restore line width
      if($this->LineWidth!=$lw)
      {
            $this->LineWidth=$lw;
            $this->_out(sprintf('%.2f w',$lw*$this->k));
      }
      //Restore font
      if($family)
            $this->SetFont($family,$style,$size);
      //Restore colors
      if($this->DrawColor!=$dc)
      {
            $this->DrawColor=$dc;
            $this->_out($dc);
      }
      if($this->FillColor!=$fc)
      {
            $this->FillColor=$fc;
            $this->_out($fc);
      }
      $this->TextColor=$tc;
      $this->ColorFlag=$cf;
}

function Header()
{
      //To be implemented in your own inherited class
}

function Footer()
{
      //To be implemented in your own inherited class
}

function PageNo()
{
      //Get current page number
      return $this->page;
}

function SetDrawColor($r,$g=-1,$b=-1)
{
      //Set color for all stroking operations
      if(($r==0 && $g==0 && $b==0) || $g==-1)
            $this->DrawColor=sprintf('%.3f G',$r/255);
      else
            $this->DrawColor=sprintf('%.3f %.3f %.3f RG',$r/255,$g/255,$b/255);
      if($this->page>0)
            $this->_out($this->DrawColor);
}

function SetFillColor($r,$g=-1,$b=-1)
{
      //Set color for all filling operations
      if(($r==0 && $g==0 && $b==0) || $g==-1)
            $this->FillColor=sprintf('%.3f g',$r/255);
      else
            $this->FillColor=sprintf('%.3f %.3f %.3f rg',$r/255,$g/255,$b/255);
      $this->ColorFlag=($this->FillColor!=$this->TextColor);
      if($this->page>0)
            $this->_out($this->FillColor);
}

function SetTextColor($r,$g=-1,$b=-1)
{
      //Set color for text
      if(($r==0 && $g==0 && $b==0) || $g==-1)
            $this->TextColor=sprintf('%.3f g',$r/255);
      else
            $this->TextColor=sprintf('%.3f %.3f %.3f rg',$r/255,$g/255,$b/255);
      $this->ColorFlag=($this->FillColor!=$this->TextColor);
}

function GetStringWidth($s)
{
      //Get width of a string in the current font
      $s=(string)$s;
      $cw=&$this->CurrentFont['cw'];
      $w=0;
      $l=strlen($s);
      for($i=0;$i<$l;$i++)
            $w+=$cw[$s{$i}];
      return $w*$this->FontSize/1000;
}

function SetLineWidth($width)
{
      //Set line width
      $this->LineWidth=$width;
      if($this->page>0)
            $this->_out(sprintf('%.2f w',$width*$this->k));
}

function Line($x1,$y1,$x2,$y2)
{
      //Draw a line
      $this->_out(sprintf('%.2f %.2f m %.2f %.2f l S',$x1*$this->k,($this->h-$y1)*$this->k,$x2*$this->k,($this->h-$y2)*$this->k));
}

function Rect($x,$y,$w,$h,$style='')
{
      //Draw a rectangle
      if($style=='F')
            $op='f';
      elseif($style=='FD' || $style=='DF')
            $op='B';
      else
            $op='S';
      $this->_out(sprintf('%.2f %.2f %.2f %.2f re %s',$x*$this->k,($this->h-$y)*$this->k,$w*$this->k,-$h*$this->k,$op));
}

function AddFont($family,$style='',$file='')
{
      //Add a TrueType or Type1 font
      $family=strtolower($family);
      if($file=='')
            $file=str_replace(' ','',$family).strtolower($style).'.php';
      if($family=='arial')
            $family='helvetica';
      $style=strtoupper($style);
      if($style=='IB')
            $style='BI';
      $fontkey=$family.$style;
      if(isset($this->fonts[$fontkey]))
            $this->Error('Font already added: '.$family.' '.$style);
      include($this->_getfontpath().$file);
      if(!isset($name))
            $this->Error('Could not include font definition file');
      $i=count($this->fonts)+1;
      $this->fonts[$fontkey]=array('i'=>$i,'type'=>$type,'name'=>$name,'desc'=>$desc,'up'=>$up,'ut'=>$ut,'cw'=>$cw,'enc'=>$enc,'file'=>$file);
      if($diff)
      {
            //Search existing encodings
            $d=0;
            $nb=count($this->diffs);
            for($i=1;$i<=$nb;$i++)
            {
                  if($this->diffs[$i]==$diff)
                  {
                        $d=$i;
                        break;
                  }
            }
            if($d==0)
            {
                  $d=$nb+1;
                  $this->diffs[$d]=$diff;
            }
            $this->fonts[$fontkey]['diff']=$d;
      }
      if($file)
      {
            if($type=='TrueType')
                  $this->FontFiles[$file]=array('length1'=>$originalsize);
            else
                  $this->FontFiles[$file]=array('length1'=>$size1,'length2'=>$size2);
      }
}

function SetFont($family,$style='',$size=0)
{
      //Select a font; size given in points
      global $fpdf_charwidths;

      $family=strtolower($family);
      if($family=='')
            $family=$this->FontFamily;
      if($family=='arial')
            $family='helvetica';
      elseif($family=='symbol' || $family=='zapfdingbats')
            $style='';
      $style=strtoupper($style);
      if(strpos($style,'U')!==false)
      {
            $this->underline=true;
            $style=str_replace('U','',$style);
      }
      else
            $this->underline=false;
      if($style=='IB')
            $style='BI';
      if($size==0)
            $size=$this->FontSizePt;
      //Test if font is already selected
      if($this->FontFamily==$family && $this->FontStyle==$style && $this->FontSizePt==$size)
            return;
      //Test if used for the first time
      $fontkey=$family.$style;
      if(!isset($this->fonts[$fontkey]))
      {
            //Check if one of the standard fonts
            if(isset($this->CoreFonts[$fontkey]))
            {
                  if(!isset($fpdf_charwidths[$fontkey]))
                  {
                        //Load metric file
                        $file=$family;
                        if($family=='times' || $family=='helvetica')
                              $file.=strtolower($style);
                        include($this->_getfontpath().$file.'.php');
                        if(!isset($fpdf_charwidths[$fontkey]))
                              $this->Error('Could not include font metric file');
                  }
                  $i=count($this->fonts)+1;
                  $this->fonts[$fontkey]=array('i'=>$i,'type'=>'core','name'=>$this->CoreFonts[$fontkey],'up'=>-100,'ut'=>50,'cw'=>$fpdf_charwidths[$fontkey]);
            }
            else
                  $this->Error('Undefined font: '.$family.' '.$style);
      }
      //Select it
      $this->FontFamily=$family;
      $this->FontStyle=$style;
      $this->FontSizePt=$size;
      $this->FontSize=$size/$this->k;
      $this->CurrentFont=&$this->fonts[$fontkey];
      if($this->page>0)
            $this->_out(sprintf('BT /F%d %.2f Tf ET',$this->CurrentFont['i'],$this->FontSizePt));
}

function SetFontSize($size)
{
      //Set font size in points
      if($this->FontSizePt==$size)
            return;
      $this->FontSizePt=$size;
      $this->FontSize=$size/$this->k;
      if($this->page>0)
            $this->_out(sprintf('BT /F%d %.2f Tf ET',$this->CurrentFont['i'],$this->FontSizePt));
}

function AddLink()
{
      //Create a new internal link
      $n=count($this->links)+1;
      $this->links[$n]=array(0,0);
      return $n;
}

function SetLink($link,$y=0,$page=-1)
{
      //Set destination of internal link
      if($y==-1)
            $y=$this->y;
      if($page==-1)
            $page=$this->page;
      $this->links[$link]=array($page,$y);
}

function Link($x,$y,$w,$h,$link)
{
      //Put a link on the page
      $this->PageLinks[$this->page][]=array($x*$this->k,$this->hPt-$y*$this->k,$w*$this->k,$h*$this->k,$link);
}

function Text($x,$y,$txt)
{
      //Output a string
      $s=sprintf('BT %.2f %.2f Td (%s) Tj ET',$x*$this->k,($this->h-$y)*$this->k,$this->_escape($txt));
      if($this->underline && $txt!='')
            $s.=' '.$this->_dounderline($x,$y,$txt);
      if($this->ColorFlag)
            $s='q '.$this->TextColor.' '.$s.' Q';
      $this->_out($s);
}

function AcceptPageBreak()
{
      //Accept automatic page break or not
      return $this->AutoPageBreak;
}

function Cell($w,$h=0,$txt='',$border=0,$ln=0,$align='',$fill=0,$link='')
{
      //Output a cell
      $k=$this->k;
      if($this->y+$h>$this->PageBreakTrigger && !$this->InFooter && $this->AcceptPageBreak())
      {
            //Automatic page break
            $x=$this->x;
            $ws=$this->ws;
            if($ws>0)
            {
                  $this->ws=0;
                  $this->_out('0 Tw');
            }
            $this->AddPage($this->CurOrientation);
            $this->x=$x;
            if($ws>0)
            {
                  $this->ws=$ws;
                  $this->_out(sprintf('%.3f Tw',$ws*$k));
            }
      }
      if($w==0)
            $w=$this->w-$this->rMargin-$this->x;
      $s='';
      if($fill==1 || $border==1)
      {
            if($fill==1)
                  $op=($border==1) ? 'B' : 'f';
            else
                  $op='S';
            $s=sprintf('%.2f %.2f %.2f %.2f re %s ',$this->x*$k,($this->h-$this->y)*$k,$w*$k,-$h*$k,$op);
      }
      if(is_string($border))
      {
            $x=$this->x;
            $y=$this->y;
            if(strpos($border,'L')!==false)
                  $s.=sprintf('%.2f %.2f m %.2f %.2f l S ',$x*$k,($this->h-$y)*$k,$x*$k,($this->h-($y+$h))*$k);
            if(strpos($border,'T')!==false)
                  $s.=sprintf('%.2f %.2f m %.2f %.2f l S ',$x*$k,($this->h-$y)*$k,($x+$w)*$k,($this->h-$y)*$k);
            if(strpos($border,'R')!==false)
                  $s.=sprintf('%.2f %.2f m %.2f %.2f l S ',($x+$w)*$k,($this->h-$y)*$k,($x+$w)*$k,($this->h-($y+$h))*$k);
            if(strpos($border,'B')!==false)
                  $s.=sprintf('%.2f %.2f m %.2f %.2f l S ',$x*$k,($this->h-($y+$h))*$k,($x+$w)*$k,($this->h-($y+$h))*$k);
      }
      if($txt!=='')
      {
            if($align=='R')
                  $dx=$w-$this->cMargin-$this->GetStringWidth($txt);
            elseif($align=='C')
                  $dx=($w-$this->GetStringWidth($txt))/2;
            else
                  $dx=$this->cMargin;
            if($this->ColorFlag)
                  $s.='q '.$this->TextColor.' ';
            $txt2=str_replace(')','\\)',str_replace('(','\\(',str_replace('\\','\\\\',$txt)));
            $s.=sprintf('BT %.2f %.2f Td (%s) Tj ET',($this->x+$dx)*$k,($this->h-($this->y+.5*$h+.3*$this->FontSize))*$k,$txt2);
            if($this->underline)
                  $s.=' '.$this->_dounderline($this->x+$dx,$this->y+.5*$h+.3*$this->FontSize,$txt);
            if($this->ColorFlag)
                  $s.=' Q';
            if($link)
                  $this->Link($this->x+$dx,$this->y+.5*$h-.5*$this->FontSize,$this->GetStringWidth($txt),$this->FontSize,$link);
      }
      if($s)
            $this->_out($s);
      $this->lasth=$h;
      if($ln>0)
      {
            //Go to next line
            $this->y+=$h;
            if($ln==1)
                  $this->x=$this->lMargin;
      }
      else
            $this->x+=$w;
}

function MultiCell($w,$h,$txt,$border=0,$align='J',$fill=0)
{
      //Output text with automatic or explicit line breaks
      $cw=&$this->CurrentFont['cw'];
      if($w==0)
            $w=$this->w-$this->rMargin-$this->x;
      $wmax=($w-2*$this->cMargin)*1000/$this->FontSize;
      $s=str_replace("\r",'',$txt);
      $nb=strlen($s);
      if($nb>0 && $s[$nb-1]=="\n")
            $nb--;
      $b=0;
      if($border)
      {
            if($border==1)
            {
                  $border='LTRB';
                  $b='LRT';
                  $b2='LR';
            }
            else
            {
                  $b2='';
                  if(strpos($border,'L')!==false)
                        $b2.='L';
                  if(strpos($border,'R')!==false)
                        $b2.='R';
                  $b=(strpos($border,'T')!==false) ? $b2.'T' : $b2;
            }
      }
      $sep=-1;
      $i=0;
      $j=0;
      $l=0;
      $ns=0;
      $nl=1;
      while($i<$nb)
      {
            //Get next character
            $c=$s{$i};
            if($c=="\n")
            {
                  //Explicit line break
                  if($this->ws>0)
                  {
                        $this->ws=0;
                        $this->_out('0 Tw');
                  }
                  $this->Cell($w,$h,substr($s,$j,$i-$j),$b,2,$align,$fill);
                  $i++;
                  $sep=-1;
                  $j=$i;
                  $l=0;
                  $ns=0;
                  $nl++;
                  if($border && $nl==2)
                        $b=$b2;
                  continue;
            }
            if($c==' ')
            {
                  $sep=$i;
                  $ls=$l;
                  $ns++;
            }
            $l+=$cw[$c];
            if($l>$wmax)
            {
                  //Automatic line break
                  if($sep==-1)
                  {
                        if($i==$j)
                              $i++;
                        if($this->ws>0)
                        {
                              $this->ws=0;
                              $this->_out('0 Tw');
                        }
                        $this->Cell($w,$h,substr($s,$j,$i-$j),$b,2,$align,$fill);
                  }
                  else
                  {
                        if($align=='J')
                        {
                              $this->ws=($ns>1) ? ($wmax-$ls)/1000*$this->FontSize/($ns-1) : 0;
                              $this->_out(sprintf('%.3f Tw',$this->ws*$this->k));
                        }
                        $this->Cell($w,$h,substr($s,$j,$sep-$j),$b,2,$align,$fill);
                        $i=$sep+1;
                  }
                  $sep=-1;
                  $j=$i;
                  $l=0;
                  $ns=0;
                  $nl++;
                  if($border && $nl==2)
                        $b=$b2;
            }
            else
                  $i++;
      }
      //Last chunk
      if($this->ws>0)
      {
            $this->ws=0;
            $this->_out('0 Tw');
      }
      if($border && strpos($border,'B')!==false)
            $b.='B';
      $this->Cell($w,$h,substr($s,$j,$i-$j),$b,2,$align,$fill);
      $this->x=$this->lMargin;
}

function Write($h,$txt,$link='')
{
      //Output text in flowing mode
      $cw=&$this->CurrentFont['cw'];
      $w=$this->w-$this->rMargin-$this->x;
      $wmax=($w-2*$this->cMargin)*1000/$this->FontSize;
      $s=str_replace("\r",'',$txt);
      $nb=strlen($s);
      $sep=-1;
      $i=0;
      $j=0;
      $l=0;
      $nl=1;
      while($i<$nb)
      {
            //Get next character
            $c=$s{$i};
            if($c=="\n")
            {
                  //Explicit line break
                  $this->Cell($w,$h,substr($s,$j,$i-$j),0,2,'',0,$link);
                  $i++;
                  $sep=-1;
                  $j=$i;
                  $l=0;
                  if($nl==1)
                  {
                        $this->x=$this->lMargin;
                        $w=$this->w-$this->rMargin-$this->x;
                        $wmax=($w-2*$this->cMargin)*1000/$this->FontSize;
                  }
                  $nl++;
                  continue;
            }
            if($c==' ')
                  $sep=$i;
            $l+=$cw[$c];
            if($l>$wmax)
            {
                  //Automatic line break
                  if($sep==-1)
                  {
                        if($this->x>$this->lMargin)
                        {
                              //Move to next line
                              $this->x=$this->lMargin;
                              $this->y+=$h;
                              $w=$this->w-$this->rMargin-$this->x;
                              $wmax=($w-2*$this->cMargin)*1000/$this->FontSize;
                              $i++;
                              $nl++;
                              continue;
                        }
                        if($i==$j)
                              $i++;
                        $this->Cell($w,$h,substr($s,$j,$i-$j),0,2,'',0,$link);
                  }
                  else
                  {
                        $this->Cell($w,$h,substr($s,$j,$sep-$j),0,2,'',0,$link);
                        $i=$sep+1;
                  }
                  $sep=-1;
                  $j=$i;
                  $l=0;
                  if($nl==1)
                  {
                        $this->x=$this->lMargin;
                        $w=$this->w-$this->rMargin-$this->x;
                        $wmax=($w-2*$this->cMargin)*1000/$this->FontSize;
                  }
                  $nl++;
            }
            else
                  $i++;
      }
      //Last chunk
      if($i!=$j)
            $this->Cell($l/1000*$this->FontSize,$h,substr($s,$j),0,0,'',0,$link);
}

function Image($file,$x,$y,$w=0,$h=0,$type='',$link='')
{
      //Put an image on the page
      if(!isset($this->images[$file]))
      {
            //First use of image, get info
            if($type=='')
            {
                  $pos=strrpos($file,'.');
                  if(!$pos)
                        $this->Error('Image file has no extension and no type was specified: '.$file);
                  $type=substr($file,$pos+1);
            }
            $type=strtolower($type);
            $mqr=get_magic_quotes_runtime();
            set_magic_quotes_runtime(0);
            if($type=='jpg' || $type=='jpeg')
                  $info=$this->_parsejpg($file);
            elseif($type=='png')
                  $info=$this->_parsepng($file);
            else
            {
                  //Allow for additional formats
                  $mtd='_parse'.$type;
                  if(!method_exists($this,$mtd))
                        $this->Error('Unsupported image type: '.$type);
                  $info=$this->$mtd($file);
            }
            set_magic_quotes_runtime($mqr);
            $info['i']=count($this->images)+1;
            $this->images[$file]=$info;
      }
      else
            $info=$this->images[$file];
      //Automatic width and height calculation if needed
      if($w==0 && $h==0)
      {
            //Put image at 72 dpi
            $w=$info['w']/$this->k;
            $h=$info['h']/$this->k;
      }
      if($w==0)
            $w=$h*$info['w']/$info['h'];
      if($h==0)
            $h=$w*$info['h']/$info['w'];
      $this->_out(sprintf('q %.2f 0 0 %.2f %.2f %.2f cm /I%d Do Q',$w*$this->k,$h*$this->k,$x*$this->k,($this->h-($y+$h))*$this->k,$info['i']));
      if($link)
            $this->Link($x,$y,$w,$h,$link);
}

function Ln($h='')
{
      //Line feed; default value is last cell height
      $this->x=$this->lMargin;
      if(is_string($h))
            $this->y+=$this->lasth;
      else
            $this->y+=$h;
}

function GetX()
{
      //Get x position
      return $this->x;
}

function SetX($x)
{
      //Set x position
      if($x>=0)
            $this->x=$x;
      else
            $this->x=$this->w+$x;
}

function GetY()
{
      //Get y position
      return $this->y;
}

function SetY($y)
{
      //Set y position and reset x
      $this->x=$this->lMargin;
      if($y>=0)
            $this->y=$y;
      else
            $this->y=$this->h+$y;
}

function SetXY($x,$y)
{
      //Set x and y positions
      $this->SetY($y);
      $this->SetX($x);
}

function Output($name='',$dest='')
{
      //Output PDF to some destination
      //Finish document if necessary
      if($this->state<3)
            $this->Close();
      //Normalize parameters
      if(is_bool($dest))
            $dest=$dest ? 'D' : 'F';
      $dest=strtoupper($dest);
      if($dest=='')
      {
            if($name=='')
            {
                  $name='doc.pdf';
                  $dest='I';
            }
            else
                  $dest='F';
      }
      switch($dest)
      {
            case 'I':
                  //Send to standard output
                  if(ob_get_contents())
                        $this->Error('Some data has already been output, can\'t send PDF file');
                  if(php_sapi_name()!='cli')
                  {
                        //We send to a browser
                        header('Content-Type: application/pdf');
                        if(headers_sent())
                              $this->Error('Some data has already been output to browser, can\'t send PDF file');
                        header('Content-Length: '.strlen($this->buffer));
                        header('Content-disposition: inline; filename="'.$name.'"');
                  }
                  echo $this->buffer;
                  break;
            case 'D':
                  //Download file
                  if(ob_get_contents())
                        $this->Error('Some data has already been output, can\'t send PDF file');
                  if(isset($_SERVER['HTTP_USER_AGENT']) && strpos($_SERVER['HTTP_USER_AGENT'],'MSIE'))
                        header('Content-Type: application/force-download');
                  else
                        header('Content-Type: application/octet-stream');
                  if(headers_sent())
                        $this->Error('Some data has already been output to browser, can\'t send PDF file');
                  header('Content-Length: '.strlen($this->buffer));
                  header('Content-disposition: attachment; filename="'.$name.'"');
                  echo $this->buffer;
                  break;
            case 'F':
                  //Save to local file
                  $f=fopen($name,'wb');
                  if(!$f)
                        $this->Error('Unable to create output file: '.$name);
                  fwrite($f,$this->buffer,strlen($this->buffer));
                  fclose($f);
                  break;
            case 'S':
                  //Return as a string
                  return $this->buffer;
            default:
                  $this->Error('Incorrect output destination: '.$dest);
      }
      return '';
}

/*******************************************************************************
*                                                                              *
*                              Protected methods                               *
*                                                                              *
*******************************************************************************/
function _dochecks()
{
      //Check for locale-related bug
      if(1.1==1)
            $this->Error('Don\'t alter the locale before including class file');
      //Check for decimal separator
      if(sprintf('%.1f',1.0)!='1.0')
            setlocale(LC_NUMERIC,'C');
}

function _getfontpath()
{
      if(!defined('FPDF_FONTPATH') && is_dir(dirname(__FILE__).'/font'))
            define('FPDF_FONTPATH',dirname(__FILE__).'/font/');
      return defined('FPDF_FONTPATH') ? FPDF_FONTPATH : '';
}

function _putpages()
{
      $nb=$this->page;
      if(!empty($this->AliasNbPages))
      {
            //Replace number of pages
            for($n=1;$n<=$nb;$n++)
                  $this->pages[$n]=str_replace($this->AliasNbPages,$nb,$this->pages[$n]);
      }
      if($this->DefOrientation=='P')
      {
            $wPt=$this->fwPt;
            $hPt=$this->fhPt;
      }
      else
      {
            $wPt=$this->fhPt;
            $hPt=$this->fwPt;
      }
      $filter=($this->compress) ? '/Filter /FlateDecode ' : '';
      for($n=1;$n<=$nb;$n++)
      {
            //Page
            $this->_newobj();
            $this->_out('<</Type /Page');
            $this->_out('/Parent 1 0 R');
            if(isset($this->OrientationChanges[$n]))
                  $this->_out(sprintf('/MediaBox [0 0 %.2f %.2f]',$hPt,$wPt));
            $this->_out('/Resources 2 0 R');
            if(isset($this->PageLinks[$n]))
            {
                  //Links
                  $annots='/Annots [';
                  foreach($this->PageLinks[$n] as $pl)
                  {
                        $rect=sprintf('%.2f %.2f %.2f %.2f',$pl[0],$pl[1],$pl[0]+$pl[2],$pl[1]-$pl[3]);
                        $annots.='<</Type /Annot /Subtype /Link /Rect ['.$rect.'] /Border [0 0 0] ';
                        if(is_string($pl[4]))
                              $annots.='/A <</S /URI /URI '.$this->_textstring($pl[4]).'>>>>';
                        else
                        {
                              $l=$this->links[$pl[4]];
                              $h=isset($this->OrientationChanges[$l[0]]) ? $wPt : $hPt;
                              $annots.=sprintf('/Dest [%d 0 R /XYZ 0 %.2f null]>>',1+2*$l[0],$h-$l[1]*$this->k);
                        }
                  }
                  $this->_out($annots.']');
            }
            $this->_out('/Contents '.($this->n+1).' 0 R>>');
            $this->_out('endobj');
            //Page content
            $p=($this->compress) ? gzcompress($this->pages[$n]) : $this->pages[$n];
            $this->_newobj();
            $this->_out('<<'.$filter.'/Length '.strlen($p).'>>');
            $this->_putstream($p);
            $this->_out('endobj');
      }
      //Pages root
      $this->offsets[1]=strlen($this->buffer);
      $this->_out('1 0 obj');
      $this->_out('<</Type /Pages');
      $kids='/Kids [';
      for($i=0;$i<$nb;$i++)
            $kids.=(3+2*$i).' 0 R ';
      $this->_out($kids.']');
      $this->_out('/Count '.$nb);
      $this->_out(sprintf('/MediaBox [0 0 %.2f %.2f]',$wPt,$hPt));
      $this->_out('>>');
      $this->_out('endobj');
}

function _putfonts()
{
      $nf=$this->n;
      foreach($this->diffs as $diff)
      {
            //Encodings
            $this->_newobj();
            $this->_out('<</Type /Encoding /BaseEncoding /WinAnsiEncoding /Differences ['.$diff.']>>');
            $this->_out('endobj');
      }
      $mqr=get_magic_quotes_runtime();
      set_magic_quotes_runtime(0);
      foreach($this->FontFiles as $file=>$info)
      {
            //Font file embedding
            $this->_newobj();
            $this->FontFiles[$file]['n']=$this->n;
            $font='';
            $f=fopen($this->_getfontpath().$file,'rb',1);
            if(!$f)
                  $this->Error('Font file not found');
            while(!feof($f))
                  $font.=fread($f,8192);
            fclose($f);
            $compressed=(substr($file,-2)=='.z');
            if(!$compressed && isset($info['length2']))
            {
                  $header=(ord($font{0})==128);
                  if($header)
                  {
                        //Strip first binary header
                        $font=substr($font,6);
                  }
                  if($header && ord($font{$info['length1']})==128)
                  {
                        //Strip second binary header
                        $font=substr($font,0,$info['length1']).substr($font,$info['length1']+6);
                  }
            }
            $this->_out('<</Length '.strlen($font));
            if($compressed)
                  $this->_out('/Filter /FlateDecode');
            $this->_out('/Length1 '.$info['length1']);
            if(isset($info['length2']))
                  $this->_out('/Length2 '.$info['length2'].' /Length3 0');
            $this->_out('>>');
            $this->_putstream($font);
            $this->_out('endobj');
      }
      set_magic_quotes_runtime($mqr);
      foreach($this->fonts as $k=>$font)
      {
            //Font objects
            $this->fonts[$k]['n']=$this->n+1;
            $type=$font['type'];
            $name=$font['name'];
            if($type=='core')
            {
                  //Standard font
                  $this->_newobj();
                  $this->_out('<</Type /Font');
                  $this->_out('/BaseFont /'.$name);
                  $this->_out('/Subtype /Type1');
                  if($name!='Symbol' && $name!='ZapfDingbats')
                        $this->_out('/Encoding /WinAnsiEncoding');
                  $this->_out('>>');
                  $this->_out('endobj');
            }
            elseif($type=='Type1' || $type=='TrueType')
            {
                  //Additional Type1 or TrueType font
                  $this->_newobj();
                  $this->_out('<</Type /Font');
                  $this->_out('/BaseFont /'.$name);
                  $this->_out('/Subtype /'.$type);
                  $this->_out('/FirstChar 32 /LastChar 255');
                  $this->_out('/Widths '.($this->n+1).' 0 R');
                  $this->_out('/FontDescriptor '.($this->n+2).' 0 R');
                  if($font['enc'])
                  {
                        if(isset($font['diff']))
                              $this->_out('/Encoding '.($nf+$font['diff']).' 0 R');
                        else
                              $this->_out('/Encoding /WinAnsiEncoding');
                  }
                  $this->_out('>>');
                  $this->_out('endobj');
                  //Widths
                  $this->_newobj();
                  $cw=&$font['cw'];
                  $s='[';
                  for($i=32;$i<=255;$i++)
                        $s.=$cw[chr($i)].' ';
                  $this->_out($s.']');
                  $this->_out('endobj');
                  //Descriptor
                  $this->_newobj();
                  $s='<</Type /FontDescriptor /FontName /'.$name;
                  foreach($font['desc'] as $k=>$v)
                        $s.=' /'.$k.' '.$v;
                  $file=$font['file'];
                  if($file)
                        $s.=' /FontFile'.($type=='Type1' ? '' : '2').' '.$this->FontFiles[$file]['n'].' 0 R';
                  $this->_out($s.'>>');
                  $this->_out('endobj');
            }
            else
            {
                  //Allow for additional types
                  $mtd='_put'.strtolower($type);
                  if(!method_exists($this,$mtd))
                        $this->Error('Unsupported font type: '.$type);
                  $this->$mtd($font);
            }
      }
}

function _putimages()
{
      $filter=($this->compress) ? '/Filter /FlateDecode ' : '';
      reset($this->images);
      while(list($file,$info)=each($this->images))
      {
            $this->_newobj();
            $this->images[$file]['n']=$this->n;
            $this->_out('<</Type /XObject');
            $this->_out('/Subtype /Image');
            $this->_out('/Width '.$info['w']);
            $this->_out('/Height '.$info['h']);
            if($info['cs']=='Indexed')
                  $this->_out('/ColorSpace [/Indexed /DeviceRGB '.(strlen($info['pal'])/3-1).' '.($this->n+1).' 0 R]');
            else
            {
                  $this->_out('/ColorSpace /'.$info['cs']);
                  if($info['cs']=='DeviceCMYK')
                        $this->_out('/Decode [1 0 1 0 1 0 1 0]');
            }
            $this->_out('/BitsPerComponent '.$info['bpc']);
            if(isset($info['f']))
                  $this->_out('/Filter /'.$info['f']);
            if(isset($info['parms']))
                  $this->_out($info['parms']);
            if(isset($info['trns']) && is_array($info['trns']))
            {
                  $trns='';
                  for($i=0;$i<count($info['trns']);$i++)
                        $trns.=$info['trns'][$i].' '.$info['trns'][$i].' ';
                  $this->_out('/Mask ['.$trns.']');
            }
            $this->_out('/Length '.strlen($info['data']).'>>');
            $this->_putstream($info['data']);
            unset($this->images[$file]['data']);
            $this->_out('endobj');
            //Palette
            if($info['cs']=='Indexed')
            {
                  $this->_newobj();
                  $pal=($this->compress) ? gzcompress($info['pal']) : $info['pal'];
                  $this->_out('<<'.$filter.'/Length '.strlen($pal).'>>');
                  $this->_putstream($pal);
                  $this->_out('endobj');
            }
      }
}

function _putxobjectdict()
{
      foreach($this->images as $image)
            $this->_out('/I'.$image['i'].' '.$image['n'].' 0 R');
}

function _putresourcedict()
{
      $this->_out('/ProcSet [/PDF /Text /ImageB /ImageC /ImageI]');
      $this->_out('/Font <<');
      foreach($this->fonts as $font)
            $this->_out('/F'.$font['i'].' '.$font['n'].' 0 R');
      $this->_out('>>');
      $this->_out('/XObject <<');
      $this->_putxobjectdict();
      $this->_out('>>');
}

function _putresources()
{
      $this->_putfonts();
      $this->_putimages();
      //Resource dictionary
      $this->offsets[2]=strlen($this->buffer);
      $this->_out('2 0 obj');
      $this->_out('<<');
      $this->_putresourcedict();
      $this->_out('>>');
      $this->_out('endobj');
}

function _putinfo()
{
      $this->_out('/Producer '.$this->_textstring('FPDF '.FPDF_VERSION));
      if(!empty($this->title))
            $this->_out('/Title '.$this->_textstring($this->title));
      if(!empty($this->subject))
            $this->_out('/Subject '.$this->_textstring($this->subject));
      if(!empty($this->author))
            $this->_out('/Author '.$this->_textstring($this->author));
      if(!empty($this->keywords))
            $this->_out('/Keywords '.$this->_textstring($this->keywords));
      if(!empty($this->creator))
            $this->_out('/Creator '.$this->_textstring($this->creator));
      $this->_out('/CreationDate '.$this->_textstring('D:'.date('YmdHis')));
}

function _putcatalog()
{
      $this->_out('/Type /Catalog');
      $this->_out('/Pages 1 0 R');
      if($this->ZoomMode=='fullpage')
            $this->_out('/OpenAction [3 0 R /Fit]');
      elseif($this->ZoomMode=='fullwidth')
            $this->_out('/OpenAction [3 0 R /FitH null]');
      elseif($this->ZoomMode=='real')
            $this->_out('/OpenAction [3 0 R /XYZ null null 1]');
      elseif(!is_string($this->ZoomMode))
            $this->_out('/OpenAction [3 0 R /XYZ null null '.($this->ZoomMode/100).']');
      if($this->LayoutMode=='single')
            $this->_out('/PageLayout /SinglePage');
      elseif($this->LayoutMode=='continuous')
            $this->_out('/PageLayout /OneColumn');
      elseif($this->LayoutMode=='two')
            $this->_out('/PageLayout /TwoColumnLeft');
}

function _putheader()
{
      $this->_out('%PDF-'.$this->PDFVersion);
}

function _puttrailer()
{
      $this->_out('/Size '.($this->n+1));
      $this->_out('/Root '.$this->n.' 0 R');
      $this->_out('/Info '.($this->n-1).' 0 R');
}

function _enddoc()
{
      $this->_putheader();
      $this->_putpages();
      $this->_putresources();
      //Info
      $this->_newobj();
      $this->_out('<<');
      $this->_putinfo();
      $this->_out('>>');
      $this->_out('endobj');
      //Catalog
      $this->_newobj();
      $this->_out('<<');
      $this->_putcatalog();
      $this->_out('>>');
      $this->_out('endobj');
      //Cross-ref
      $o=strlen($this->buffer);
      $this->_out('xref');
      $this->_out('0 '.($this->n+1));
      $this->_out('0000000000 65535 f ');
      for($i=1;$i<=$this->n;$i++)
            $this->_out(sprintf('%010d 00000 n ',$this->offsets[$i]));
      //Trailer
      $this->_out('trailer');
      $this->_out('<<');
      $this->_puttrailer();
      $this->_out('>>');
      $this->_out('startxref');
      $this->_out($o);
      $this->_out('%%EOF');
      $this->state=3;
}

function _beginpage($orientation)
{
      $this->page++;
      $this->pages[$this->page]='';
      $this->state=2;
      $this->x=$this->lMargin;
      $this->y=$this->tMargin;
      $this->FontFamily='';
      //Page orientation
      if(!$orientation)
            $orientation=$this->DefOrientation;
      else
      {
            $orientation=strtoupper($orientation{0});
            if($orientation!=$this->DefOrientation)
                  $this->OrientationChanges[$this->page]=true;
      }
      if($orientation!=$this->CurOrientation)
      {
            //Change orientation
            if($orientation=='P')
            {
                  $this->wPt=$this->fwPt;
                  $this->hPt=$this->fhPt;
                  $this->w=$this->fw;
                  $this->h=$this->fh;
            }
            else
            {
                  $this->wPt=$this->fhPt;
                  $this->hPt=$this->fwPt;
                  $this->w=$this->fh;
                  $this->h=$this->fw;
            }
            $this->PageBreakTrigger=$this->h-$this->bMargin;
            $this->CurOrientation=$orientation;
      }
}

function _endpage()
{
      //End of page contents
      $this->state=1;
}

function _newobj()
{
      //Begin a new object
      $this->n++;
      $this->offsets[$this->n]=strlen($this->buffer);
      $this->_out($this->n.' 0 obj');
}

function _dounderline($x,$y,$txt)
{
      //Underline text
      $up=$this->CurrentFont['up'];
      $ut=$this->CurrentFont['ut'];
      $w=$this->GetStringWidth($txt)+$this->ws*substr_count($txt,' ');
      return sprintf('%.2f %.2f %.2f %.2f re f',$x*$this->k,($this->h-($y-$up/1000*$this->FontSize))*$this->k,$w*$this->k,-$ut/1000*$this->FontSizePt);
}

function _parsejpg($file)
{
      //Extract info from a JPEG file
      $a=GetImageSize($file);
      if(!$a)
            $this->Error('Missing or incorrect image file: '.$file);
      if($a[2]!=2)
            $this->Error('Not a JPEG file: '.$file);
      if(!isset($a['channels']) || $a['channels']==3)
            $colspace='DeviceRGB';
      elseif($a['channels']==4)
            $colspace='DeviceCMYK';
      else
            $colspace='DeviceGray';
      $bpc=isset($a['bits']) ? $a['bits'] : 8;
      //Read whole file
      $f=fopen($file,'rb');
      $data='';
      while(!feof($f))
            $data.=fread($f,4096);
      fclose($f);
      return array('w'=>$a[0],'h'=>$a[1],'cs'=>$colspace,'bpc'=>$bpc,'f'=>'DCTDecode','data'=>$data);
}

function _parsepng($file)
{
      //Extract info from a PNG file
      $f=fopen($file,'rb');
      if(!$f)
            $this->Error('Can\'t open image file: '.$file);
      //Check signature
      if(fread($f,8)!=chr(137).'PNG'.chr(13).chr(10).chr(26).chr(10))
            $this->Error('Not a PNG file: '.$file);
      //Read header chunk
      fread($f,4);
      if(fread($f,4)!='IHDR')
            $this->Error('Incorrect PNG file: '.$file);
      $w=$this->_freadint($f);
      $h=$this->_freadint($f);
      $bpc=ord(fread($f,1));
      if($bpc>8)
            $this->Error('16-bit depth not supported: '.$file);
      $ct=ord(fread($f,1));
      if($ct==0)
            $colspace='DeviceGray';
      elseif($ct==2)
            $colspace='DeviceRGB';
      elseif($ct==3)
            $colspace='Indexed';
      else
            $this->Error('Alpha channel not supported: '.$file);
      if(ord(fread($f,1))!=0)
            $this->Error('Unknown compression method: '.$file);
      if(ord(fread($f,1))!=0)
            $this->Error('Unknown filter method: '.$file);
      if(ord(fread($f,1))!=0)
            $this->Error('Interlacing not supported: '.$file);
      fread($f,4);
      $parms='/DecodeParms <</Predictor 15 /Colors '.($ct==2 ? 3 : 1).' /BitsPerComponent '.$bpc.' /Columns '.$w.'>>';
      //Scan chunks looking for palette, transparency and image data
      $pal='';
      $trns='';
      $data='';
      do
      {
            $n=$this->_freadint($f);
            $type=fread($f,4);
            if($type=='PLTE')
            {
                  //Read palette
                  $pal=fread($f,$n);
                  fread($f,4);
            }
            elseif($type=='tRNS')
            {
                  //Read transparency info
                  $t=fread($f,$n);
                  if($ct==0)
                        $trns=array(ord(substr($t,1,1)));
                  elseif($ct==2)
                        $trns=array(ord(substr($t,1,1)),ord(substr($t,3,1)),ord(substr($t,5,1)));
                  else
                  {
                        $pos=strpos($t,chr(0));
                        if($pos!==false)
                              $trns=array($pos);
                  }
                  fread($f,4);
            }
            elseif($type=='IDAT')
            {
                  //Read image data block
                  $data.=fread($f,$n);
                  fread($f,4);
            }
            elseif($type=='IEND')
                  break;
            else
                  fread($f,$n+4);
      }
      while($n);
      if($colspace=='Indexed' && empty($pal))
            $this->Error('Missing palette in '.$file);
      fclose($f);
      return array('w'=>$w,'h'=>$h,'cs'=>$colspace,'bpc'=>$bpc,'f'=>'FlateDecode','parms'=>$parms,'pal'=>$pal,'trns'=>$trns,'data'=>$data);
}

function _freadint($f)
{
      //Read a 4-byte integer from file
      $a=unpack('Ni',fread($f,4));
      return $a['i'];
}

function _textstring($s)
{
      //Format a text string
      return '('.$this->_escape($s).')';
}

function _escape($s)
{
      //Add \ before \, ( and )
      return str_replace(')','\\)',str_replace('(','\\(',str_replace('\\','\\\\',$s)));
}

function _putstream($s)
{
      $this->_out('stream');
      $this->_out($s);
      $this->_out('endstream');
}

function _out($s)
{
      //Add a line to the document
      if($this->state==2)
            $this->pages[$this->page].=$s."\n";
      else
            $this->buffer.=$s."\n";
}
//End of class
}

//Handle special IE contype request
if(isset($_SERVER['HTTP_USER_AGENT']) && $_SERVER['HTTP_USER_AGENT']=='contype')
{
      header('Content-Type: application/pdf');
      exit;
}

}
?>

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