<?php
/*******************************************************************************
 * FPDF                                                                         *
 *                                                                              *
 * Version: 1.81                                                                *
 * Date:    2015-12-20                                                          *
 * Author:  Olivier PLATHEY                                                     *
 *******************************************************************************/

define('FPDF_VERSION','1.81');

class FPDF
{
    protected $page;               // current page number
    protected $n;                  // current object number
    protected $offsets;            // array of object offsets
    protected $buffer;             // buffer holding in-memory PDF
    protected $pages;              // array containing pages
    protected $state;              // current document state
    protected $compress;           // compression flag
    protected $k;                  // scale factor (number of points in user unit)
    protected $DefOrientation;     // default orientation
    protected $CurOrientation;     // current orientation
    protected $StdPageSizes;       // standard page sizes
    protected $DefPageSize;        // default page size
    protected $CurPageSize;        // current page size
    protected $CurRotation;        // current page rotation
    protected $PageInfo;           // page-related data
    protected $wPt, $hPt;          // dimensions of current page in points
    protected $w, $h;              // dimensions of current page in user unit
    protected $lMargin;            // left margin
    protected $tMargin;            // top margin
    protected $rMargin;            // right margin
    protected $bMargin;            // page break margin
    protected $cMargin;            // cell margin
    protected $x, $y;              // current position in user unit
    protected $lasth;              // height of last printed cell
    protected $LineWidth;          // line width in user unit
    protected $fontpath;           // path containing fonts
    protected $CoreFonts;          // array of core font names
    protected $fonts;              // array of used fonts
    protected $FontFiles;          // array of font files
    protected $encodings;          // array of encodings
    protected $cmaps;              // array of ToUnicode CMaps
    protected $FontFamily;         // current font family
    protected $FontStyle;          // current font style
    protected $underline;          // underlining flag
    protected $CurrentFont;        // current font info
    protected $FontSizePt;         // current font size in points
    protected $FontSize;           // current font size in user unit
    protected $DrawColor;          // commands for drawing color
    protected $FillColor;          // commands for filling color
    protected $TextColor;          // commands for text color
    protected $ColorFlag;          // indicates whether fill and text colors are different
    protected $WithAlpha;          // indicates whether alpha channel is used
    protected $ws;                 // word spacing
    protected $images;             // array of used images
    protected $PageLinks;          // array of links in pages
    protected $links;              // array of internal links
    protected $AutoPageBreak;      // automatic page breaking
    protected $PageBreakTrigger;   // threshold used to trigger page breaks
    protected $InHeader;           // flag set when processing header
    protected $InFooter;           // flag set when processing footer
    protected $AliasNbPages;       // alias for total number of pages
    protected $ZoomMode;           // zoom display mode
    protected $LayoutMode;         // layout display mode
    protected $metadata;           // document properties
    protected $PDFVersion;         // PDF version number
    protected $headerCallback;
    protected $footerCallback;
    protected $headerCallbackContext;
    protected $footerCallbackContext;
    
    /*******************************************************************************
     *                               Public methods                                *
     *******************************************************************************/
    function __construct($orientation='P', $unit='mm', $size='A4')
    {
        // Some checks
        $this->_dochecks();
        // Initialization of properties
        $this->state = 0;
        $this->page = 0;
        $this->n = 2;
        $this->buffer = '';
        $this->pages = array();
        $this->PageInfo = array();
        $this->fonts = array();
        $this->FontFiles = array();
        $this->encodings = array();
        $this->cmaps = array();
        $this->images = array();
        $this->links = array();
        $this->InHeader = false;
        $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->WithAlpha = false;
        $this->ws = 0;
        // Font path
        if (defined('FPDF_FONTPATH'))
        {
            $this->fontpath = FPDF_FONTPATH;
            if(substr($this->fontpath,-1)!='/' && substr($this->fontpath,-1)!='\\')
            {
                $this->fontpath .= '/';
            }
        }
        else if(is_dir(dirname(__FILE__).'/font'))
        {
            $this->fontpath = dirname(__FILE__).'/font/';
        }
        else
        {
            $this->fontpath = '';
        }
        // Core fonts
        $this->CoreFonts = array('courier', 'helvetica', 'times', 'symbol', 'zapfdingbats');
        
        // Scale factor
        if ($unit=='pt')
        {
            $this->k = 1;
        }
        else if ($unit=='mm')
        {
            $this->k = 72/25.4;
        }
        else if ($unit=='cm')
        {
            $this->k = 72/2.54;
        }
        else if ($unit=='in')
        {
            $this->k = 72;
        }
        else
        {
            $this->Error('Incorrect unit: '.$unit);
        }
        
        // Page sizes
        $this->StdPageSizes = array('a3'=>array(841.89,1190.55), 'a4'=>array(595.28,841.89), 'a5'=>array(420.94,595.28),
        'letter'=>array(612,792), 'legal'=>array(612,1008));
        $size = $this->_getpagesize($size);
        $this->DefPageSize = $size;
        $this->CurPageSize = $size;
        // Page orientation
        $orientation = strtolower($orientation);
        
        if ($orientation=='p' || $orientation=='portrait')
        {
            $this->DefOrientation = 'P';
            $this->w = $size[0];
            $this->h = $size[1];
        }
        else if ($orientation=='l' || $orientation=='landscape')
        {
            $this->DefOrientation = 'L';
            $this->w = $size[1];
            $this->h = $size[0];
        }
        else
        {
            $this->Error('Incorrect orientation: '.$orientation);
        }
        
        $this->CurOrientation = $this->DefOrientation;
        $this->wPt = $this->w*$this->k;
        $this->hPt = $this->h*$this->k;
        // Page rotation
        $this->CurRotation = 0;
        // 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);
        // Default display mode
        $this->SetDisplayMode('default');
        // Enable compression
        $this->SetCompression(true);
        // Set default PDF version number
        $this->PDFVersion = '1.3';
    }
    
    // just to avoid problems with BC
    public function Open()
    {
    }
    
    public function SetMargins($left, $top, $right=null)
    {
        // Set left, top and right margins
        $this->lMargin = $left;
        $this->tMargin = $top;
        if($right===null)
        $right = $left;
        $this->rMargin = $right;
    }
    
    public function SetLeftMargin($margin)
    {
        // Set left margin
        $this->lMargin = $margin;
        if($this->page>0 && $this->x<$margin)
        $this->x = $margin;
    }
    
    public function SetTopMargin($margin)
    {
        // Set top margin
        $this->tMargin = $margin;
    }
    
    public function SetRightMargin($margin)
    {
        // Set right margin
        $this->rMargin = $margin;
    }
    
    public function SetAutoPageBreak($auto, $margin=0)
    {
        // Set auto page break mode and triggering margin
        $this->AutoPageBreak = $auto;
        $this->bMargin = $margin;
        $this->PageBreakTrigger = $this->h-$margin;
    }
    
    public function SetDisplayMode($zoom, $layout='default')
    {
        // Set display mode in viewer
        if($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);
    }
    
    public function SetCompression($compress)
    {
        // Set page compression
        if(function_exists('gzcompress'))
        $this->compress = $compress;
        else
        $this->compress = false;
    }
    
    public function SetTitle($title, $isUTF8=false)
    {
        // Title of document
        $this->metadata['Title'] = $isUTF8 ? $title : utf8_encode($title);
    }
    
    public function SetAuthor($author, $isUTF8=false)
    {
        // Author of document
        $this->metadata['Author'] = $isUTF8 ? $author : utf8_encode($author);
    }
    
    public function SetSubject($subject, $isUTF8=false)
    {
        // Subject of document
        $this->metadata['Subject'] = $isUTF8 ? $subject : utf8_encode($subject);
    }
    
    public function SetKeywords($keywords, $isUTF8=false)
    {
        // Keywords of document
        $this->metadata['Keywords'] = $isUTF8 ? $keywords : utf8_encode($keywords);
    }
    
    public function SetCreator($creator, $isUTF8=false)
    {
        // Creator of document
        $this->metadata['Creator'] = $isUTF8 ? $creator : utf8_encode($creator);
    }
    
    public function AliasNbPages($alias='{nb}')
    {
        // Define an alias for total number of pages
        $this->AliasNbPages = $alias;
    }
    
    public function Error($msg)
    {
        // Fatal error
        throw new Exception('FPDF error: '.$msg);
    }
    
    public 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();
    }
    
    public function AddPage($orientation='', $size='', $rotation=0)
    {
        // Start a new page
        if ($this->state == 3)
        {
            $this->Error('The document is closed');
        }
        
        $family = $this->FontFamily;
        $style = $this->FontStyle.($this->underline ? 'U' : '');
        $fontsize = $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,$size,$rotation);
        // 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,$style,$fontsize);
        }
        // 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->InHeader = true;
        $this->Header();
        $this->InHeader = false;
        
        // 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,$style,$fontsize);
        }
        
        // 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;
    }
    
    public function setHeaderCallback($cb, $context = null)
    {
        $this->headerCallback = $cb;
        $this->headerCallbackContext = $context;
    }
    
    public function setFooterCallback($cb, $context = null)
    {
        $this->footerCallback = $cb;
        $this->footerCallbackContext = $context;
    }
    
    public function Header()
    {
        if (is_callable($this->headerCallback))
        {
            call_user_func( $this->headerCallback, $this->headerCallbackContext ? $this->headerCallbackContext : $this );
            $this->headerCallbackContext->addRow();
        }
        //To be implemented in your own inherited class
    }
    
    public function Footer()
    {
        if (is_callable($this->footerCallback))
        {
            call_user_func( $this->footerCallback, $this->footerCallbackContext ? $this->footerCallbackContext : $this );
        }
        //To be implemented in your own inherited class
    }
    
    public function PageNo()
    {
        // Get current page number
        return $this->page;
    }
    
    public function SetDrawColor($r, $g=null, $b=null)
    {
        // Set color for all stroking operations
        if(($r==0 && $g==0 && $b==0) || $g===null)
        $this->DrawColor = sprintf('%.3F G',$r/255);
        else
        $this->DrawColor = sprintf('%.3F %.3F %.3F RG',$r/255,$g/255,$b/255);
        if($this->page>0)
        $this->_out($this->DrawColor);
    }
    
    public function SetFillColor($r, $g=null, $b=null)
    {
        // Set color for all filling operations
        if (($r==0 && $g==0 && $b==0) || $g===null)
        {
            $this->FillColor = sprintf('%.3F g',$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);
        }
    }
    
    public function SetTextColor($r, $g=null, $b=null)
    {
        // Set color for text
        if(($r==0 && $g==0 && $b==0) || $g===null)
        {
            $this->TextColor = sprintf('%.3F g',$r/255);
        }
        else
        {
            $this->TextColor = sprintf('%.3F %.3F %.3F rg',$r/255,$g/255,$b/255);
        }
        
        $this->ColorFlag = ($this->FillColor!=$this->TextColor);
    }
    
    public 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;
    }
    
    public function SetLineWidth($width)
    {
        // Set line width
        $this->LineWidth = $width;
        
        if($this->page>0)
        {
            $this->_out(sprintf('%.2F w',$width*$this->k));
        }
    }
    
    public 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));
    }
    
    public function Rect($x, $y, $w, $h, $style='')
    {
        // Draw a rectangle
        if ($style=='F')
        {
            $op = 'f';
        }
        else if($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));
    }
    
    public function AddFont($family, $style='', $file='')
    {
        // Add a TrueType, OpenType or Type1 font
        $family = strtolower($family);
        if($file=='')
        {
            $file = str_replace(' ','',$family).strtolower($style).'.php';
        }
        $style = strtoupper($style);
        
        if($style=='IB')
        {
            $style = 'BI';
        }
        $fontkey = $family.$style;
        
        if (isset($this->fonts[$fontkey]))
        {
            return;
        }
        
        $info = $this->_loadfont($file);
        $info['i'] = count($this->fonts)+1;
        
        if (!empty($info['file']))
        {
            // Embedded font
            if($info['type']=='TrueType')
            {
                $this->FontFiles[$info['file']] = array('length1'=>$info['originalsize']);
            }
            else
            {
                $this->FontFiles[$info['file']] = array('length1'=>$info['size1'], 'length2'=>$info['size2']);
            }
        }
        $this->fonts[$fontkey] = $info;
    }
    
    public function SetFont($family, $style='', $size=0)
    {
        // Select a font; size given in points
        if ($family=='')
        {
            $family = $this->FontFamily;
        }
        else
        {
            $family = strtolower($family);
        }
        
        $style = strtoupper($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 font is already loaded
        $fontkey = $family.$style;
        if (!isset($this->fonts[$fontkey]))
        {
            // Test if one of the core fonts
            if($family=='arial')
            {
                $family = 'helvetica';
            }
            if (in_array($family,$this->CoreFonts))
            {
                if ($family=='symbol' || $family=='zapfdingbats')
                {
                    $style = '';
                }
                $fontkey = $family.$style;
                if (!isset($this->fonts[$fontkey]))
                {
                    $this->AddFont($family,$style);
                }
            }
            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));
        }
    }
    
    public 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));
        }
    }
    
    public function AddLink()
    {
        // Create a new internal link
        $n = count($this->links)+1;
        $this->links[$n] = array(0, 0);
        return $n;
    }
    
    public 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);
    }
    
    public 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);
    }
    
    public function Text($x, $y, $txt)
    {
        // Output a string
        if(!isset($this->CurrentFont))
        {
            $this->Error('No font has been set');
        }
        
        $s = sprintf('BT %.2F %.2F Td (%s) Tj ET',$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);
    }
    
    public function AcceptPageBreak()
    {
        // Accept automatic page break or not
        return $this->AutoPageBreak;
    }
    
    public function Cell($w, $h=0, $txt='', $border=0, $ln=0, $align='', $fill=false, $link='')
    {
        // Output a cell
        $k = $this->k;
        if ($this->y+$h>$this->PageBreakTrigger && !$this->InHeader && !$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,$this->CurPageSize,$this->CurRotation);
            $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 || $border==1)
        {
            if ($fill)
            {
                $op = ($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 ($txt!=='')
        {
            if (!isset($this->CurrentFont))
            {
                $this->Error('No font has been set');
            }
            
            if ($align=='R')
            {
                $dx = $w-$this->cMargin-$this->GetStringWidth($txt);
            }
            else if ($align=='C')
            {
                $dx = ($w-$this->GetStringWidth($txt))/2;
            }
            else
            {
                $dx = $this->cMargin;
            }
            
            if ($this->ColorFlag)
            {
                $s .= 'q '.$this->TextColor.' ';
            }
            
            $s .= sprintf('BT %.2F %.2F Td (%s) Tj ET',($this->x+$dx)*$k,($this->h-($this->y+.5*$h+.3*$this->FontSize))*$k,$this->_escape($txt));
            
            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;
        }
    }
    
    public function MultiCell($w, $h, $txt, $border=0, $align='J', $fill=false)
    {
        // Output text with automatic or explicit line breaks
        if (!isset($this->CurrentFont))
        {
            $this->Error('No font has been set');
        }
        
        $cw = &$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;
    }
    
    public function Write($h, $txt, $link='')
    {
        // Output text in flowing mode
        if(!isset($this->CurrentFont))
        {
            $this->Error('No font has been set');
        }
        
        $cw = &$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-$j),0,2,'',false,$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-$j),0,2,'',false,$link);
                }
                else
                {
                    $this->Cell($w,$h,substr($s,$j,$sep-$j),0,2,'',false,$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,'',false,$link);
        }
    }
    
    public function Ln($h=null)
    {
        // Line feed; default value is the last cell height
        $this->x = $this->lMargin;
        if($h===null)
        {
            $this->y += $this->lasth;
        }
        else
        {
            $this->y += $h;
        }
    }
    
    public function Image($file, $x=null, $y=null, $w=0, $h=0, $type='', $link='')
    {
        // Put an image on the page
        if($file=='')
        {
            $this->Error('Image file name is empty');
        }
        
        if (!isset($this->images[$file]))
        {
            // First use of this 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);
            if ($type=='jpeg')
            {
                $type = 'jpg';
            }
            
            $mtd = '_parse'.$type;
            
            if (!method_exists($this,$mtd))
            {
                $this->Error('Unsupported image type: '.$type);
            }
            
            $info = $this->$mtd($file);
            $info['i'] = count($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 96 dpi
            $w = -96;
            $h = -96;
        }
        if ($w<0)
        {
            $w = -$info['w']*72/$w/$this->k;
        }
        
        if ($h<0)
        {
            $h = -$info['h']*72/$h/$this->k;
        }
        
        if ($w==0)
        {
            $w = $h*$info['w']/$info['h'];
        }
        
        if ($h==0)
        {
            $h = $w*$info['h']/$info['w'];
        }
        
        // Flowing mode
        if ($y===null)
        {
            if ($this->y+$h>$this->PageBreakTrigger && !$this->InHeader && !$this->InFooter && $this->AcceptPageBreak())
            {
                // Automatic page break
                $x2 = $this->x;
                $this->AddPage($this->CurOrientation,$this->CurPageSize,$this->CurRotation);
                $this->x = $x2;
            }
            $y = $this->y;
            $this->y += $h;
        }
        
        if ($x===null)
        {
            $x = $this->x;
        }
        
        $this->_out(sprintf('q %.2F 0 0 %.2F %.2F %.2F cm /I%d Do Q',$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);
        }
        
        return [$w,$h];
    }
    
    public function GetPageWidth()
    {
        // Get current page width
        return $this->w;
    }
    
    public function GetPageHeight()
    {
        // Get current page height
        return $this->h;
    }
    
    public function GetX()
    {
        // Get x position
        return $this->x;
    }
    
    public function SetX($x)
    {
        // Set x position
        if($x>=0)
        {
            $this->x = $x;
        }
        else
        {
            $this->x = $this->w+$x;
        }
    }
    
    public function GetY()
    {
        // Get y position
        return $this->y;
    }
    
    public function SetY($y, $resetX=true)
    {
        // Set y position and optionally reset x
        if ($y>=0)
        {
            $this->y = $y;
        }
        else
        {
            $this->y = $this->h+$y;
        }
        
        if ($resetX)
        {
            $this->x = $this->lMargin;
        }
    }
    
    public function SetXY($x, $y)
    {
        // Set x and y positions
        $this->SetX($x);
        $this->SetY($y,false);
    }
    
    public function Output($name='', $dest='F', $isUTF8=false)
    {
        // Output PDF to some destination
        $this->Close();
        if (strlen($name)==1 && strlen($dest)!=1)
        {
            // Fix parameter order
            $tmp = $dest;
            $dest = $name;
            $name = $tmp;
        }
        if($dest=='')
        {
            $dest = 'I';
        }
        
        if($name=='')
        {
            $name = 'doc.pdf';
        }
        
        switch(strtoupper($dest))
        {
            case 'I':
                // Send to standard output
                $this->_checkoutput();
                if (PHP_SAPI!='cli')
                {
                    // We send to a browser
                    header('Content-Type: application/pdf');
                    header('Content-Disposition: inline; '.$this->_httpencode('filename',$name,$isUTF8));
                    header('Cache-Control: private, max-age=0, must-revalidate');
                    header('Pragma: public');
                }
                echo $this->buffer;
                break;
            case 'D':
                // Download file
                $this->_checkoutput();
                header('Content-Type: application/x-download');
                header('Content-Disposition: attachment; '.$this->_httpencode('filename',$name,$isUTF8));
                header('Cache-Control: private, max-age=0, must-revalidate');
                header('Pragma: public');
                echo $this->buffer;
                break;
            case 'F':
                // Save to local file
                if(!file_put_contents($name,$this->buffer))
                {
                    $this->Error('Unable to create output file: '.$name);
                }
                
                break;
            case 'S':
                // Return as a string
                return $this->buffer;
            default:
                $this->Error('Incorrect output destination: '.$dest);
        }
        return '';
    }
    
    /*******************************************************************************
     *                              Protected methods                               *
     *******************************************************************************/
    
    protected function _dochecks()
    {
        // Check mbstring overloading
        if(ini_get('mbstring.func_overload') & 2)
        {
            $this->Error('mbstring overloading must be disabled');
        }
    }
    
    protected function _checkoutput()
    {
        if (PHP_SAPI!='cli')
        {
            if (headers_sent($file,$line))
            {
                $this->Error("Some data has already been output, can't send PDF file (output started at $file:$line)");
            }
        }
        
        if (ob_get_length())
        {
            // The output buffer is not empty
            if (preg_match('/^(\xEF\xBB\xBF)?\s*$/',ob_get_contents()))
            {
                // It contains only a UTF-8 BOM and/or whitespace, let's clean it
                ob_clean();
            }
            else
            {
                $this->Error("Some data has already been output, can't send PDF file");
            }
        }
    }
    
    protected function _getpagesize($size)
    {
        if (is_string($size))
        {
            $size = strtolower($size);
            if (!isset($this->StdPageSizes[$size]))
            {
                $this->Error('Unknown page size: '.$size);
            }
            
            $a = $this->StdPageSizes[$size];
            return array($a[0]/$this->k, $a[1]/$this->k);
        }
        else
        {
            if ($size[0]>$size[1])
            {
                return array($size[1], $size[0]);
            }
            else
            {
                return $size;
            }
        }
    }
    
    protected function _beginpage($orientation, $size, $rotation)
    {
        $this->page++;
        $this->pages[$this->page] = '';
        $this->state = 2;
        $this->x = $this->lMargin;
        $this->y = $this->tMargin;
        $this->FontFamily = '';
        
        // Check page size and orientation
        if($orientation=='')
        {
            $orientation = $this->DefOrientation;
        }
        else
        {
            $orientation = strtoupper($orientation[0]);
        }
        if ($size=='')
        {
            $size = $this->DefPageSize;
        }
        else
        {
            $size = $this->_getpagesize($size);
        }
        
        if ($orientation!=$this->CurOrientation || $size[0]!=$this->CurPageSize[0] || $size[1]!=$this->CurPageSize[1])
        {
            // New size or orientation
            if ($orientation=='P')
            {
                $this->w = $size[0];
                $this->h = $size[1];
            }
            else
            {
                $this->w = $size[1];
                $this->h = $size[0];
            }
            
            $this->wPt = $this->w*$this->k;
            $this->hPt = $this->h*$this->k;
            $this->PageBreakTrigger = $this->h-$this->bMargin;
            $this->CurOrientation = $orientation;
            $this->CurPageSize = $size;
        }
        
        if ($orientation!=$this->DefOrientation || $size[0]!=$this->DefPageSize[0] || $size[1]!=$this->DefPageSize[1])
        {
            $this->PageInfo[$this->page]['size'] = array($this->wPt, $this->hPt);
        }
        
        if ($rotation!=0)
        {
            if ($rotation%90!=0)
            {
                $this->Error('Incorrect rotation value: '.$rotation);
            }
            
            $this->CurRotation = $rotation;
            $this->PageInfo[$this->page]['rotation'] = $rotation;
        }
    }
    
    protected function _endpage()
    {
        $this->state = 1;
    }
    
    protected function _loadfont($font)
    {
        // Load a font definition file from the font directory
        if(strpos($font,'/')!==false || strpos($font,"\\")!==false)
        {
            $this->Error('Incorrect font definition file name: '.$font);
        }
        
        include($this->fontpath.$font);
        if(!isset($name))
        {
            $this->Error('Could not include font definition file');
        }
        
        if (isset($enc))
        {
            $enc = strtolower($enc);
        }
        
        if (!isset($subsetted))
        {
            $subsetted = false;
        }
        
        return get_defined_vars();
    }
    
    protected function _isascii($s)
    {
        // Test if string is ASCII
        $nb = strlen($s);
        for ($i=0;$i<$nb;$i++)
        {
            if(ord($s[$i])>127)
            {
                return false;
            }
        }
        
        return true;
    }
    
    protected function _httpencode($param, $value, $isUTF8)
    {
        // Encode HTTP header field parameter
        if ($this->_isascii($value))
        {
            return $param.'="'.$value.'"';
        }
        
        if (!$isUTF8)
        {
            $value = utf8_encode($value);
        }
        
        if (strpos($_SERVER['HTTP_USER_AGENT'],'MSIE')!==false)
        {
            return $param.'="'.rawurlencode($value).'"';
        }
        else
        {
            return $param."*=UTF-8''".rawurlencode($value);
        }
    }
    
    protected function _UTF8toUTF16($s)
    {
        // Convert UTF-8 to UTF-16BE with BOM
        $res = "\xFE\xFF";
        $nb = strlen($s);
        $i = 0;
        
        while ($i<$nb)
        {
            $c1 = ord($s[$i++]);
            if ($c1>=224)
            {
                // 3-byte character
                $c2 = ord($s[$i++]);
                $c3 = ord($s[$i++]);
                $res .= chr((($c1 & 0x0F)<<4) + (($c2 & 0x3C)>>2));
                $res .= chr((($c2 & 0x03)<<6) + ($c3 & 0x3F));
            }
            else if ($c1>=192)
            {
                // 2-byte character
                $c2 = ord($s[$i++]);
                $res .= chr(($c1 & 0x1C)>>2);
                $res .= chr((($c1 & 0x03)<<6) + ($c2 & 0x3F));
            }
            else
            {
                // Single-byte character
                $res .= "\0".chr($c1);
            }
        }
        return $res;
    }
    
    protected function _escape($s)
    {
        // Escape special characters
        if(strpos($s,'(')!==false || strpos($s,')')!==false || strpos($s,'\\')!==false || strpos($s,"\r")!==false)
        {
            return str_replace(array('\\','(',')',"\r"), array('\\\\','\\(','\\)','\\r'), $s);
        }
        else
        {
            return $s;
        }
    }
    
    protected function _textstring($s)
    {
        // Format a text string
        if (!$this->_isascii($s))
        {
            $s = $this->_UTF8toUTF16($s);
        }
        
        return '('.$this->_escape($s).')';
    }
    
    protected 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);
    }
    
    protected 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';
        }
        
        else if ($a['channels']==4)
        {
            $colspace = 'DeviceCMYK';
        }
        else
        {
            $colspace = 'DeviceGray';
        }
        
        $bpc = isset($a['bits']) ? $a['bits'] : 8;
        $data = file_get_contents($file);
        
        return array('w'=>$a[0], 'h'=>$a[1], 'cs'=>$colspace, 'bpc'=>$bpc, 'f'=>'DCTDecode', 'data'=>$data);
    }
    
    protected function _parsepng($file)
    {
        // Extract info from a PNG file
        $f = fopen($file,'rb');
        if(!$f)
        {
            $this->Error('Can\'t open image file: '.$file);
        }
        
        $info = $this->_parsepngstream($f,$file);
        fclose($f);
        return $info;
    }
    
    protected function _parsepngstream($f, $file)
    {
        // Check signature
        if($this->_readstream($f,8)!=chr(137).'PNG'.chr(13).chr(10).chr(26).chr(10))
        {
            $this->Error('Not a PNG file: '.$file);
        }
        
        // Read header chunk
        $this->_readstream($f,4);
        if($this->_readstream($f,4)!='IHDR')
        {
            $this->Error('Incorrect PNG file: '.$file);
        }
        
        $w = $this->_readint($f);
        $h = $this->_readint($f);
        $bpc = ord($this->_readstream($f,1));
        
        if($bpc>8)
        {
            $this->Error('16-bit depth not supported: '.$file);
        }
        
        $ct = ord($this->_readstream($f,1));
        if($ct==0 || $ct==4)
        {
            $colspace = 'DeviceGray';
        }
        else if ($ct==2 || $ct==6)
        {
            $colspace = 'DeviceRGB';
        }
        else if ($ct==3)
        {
            $colspace = 'Indexed';
        }
        else
        {
            $this->Error('Unknown color type: '.$file);
        }
        
        if (ord($this->_readstream($f,1))!=0)
        {
            $this->Error('Unknown compression method: '.$file);
        }
        
        if (ord($this->_readstream($f,1))!=0)
        {
            $this->Error('Unknown filter method: '.$file);
        }
        
        if (ord($this->_readstream($f,1))!=0)
        {
            $this->Error('Interlacing not supported: '.$file);
        }
        
        $this->_readstream($f,4);
        $dp = '/Predictor 15 /Colors '.($colspace=='DeviceRGB' ? 3 : 1).' /BitsPerComponent '.$bpc.' /Columns '.$w;
        
        // Scan chunks looking for palette, transparency and image data
        $pal = '';
        $trns = '';
        $data = '';
        do
        {
            $n = $this->_readint($f);
            $type = $this->_readstream($f,4);
            if ($type=='PLTE')
            {
                // Read palette
                $pal = $this->_readstream($f,$n);
                $this->_readstream($f,4);
            }
            else if ($type=='tRNS')
            {
                // Read transparency info
                $t = $this->_readstream($f,$n);
                if($ct==0)
                {
                    $trns = array(ord(substr($t,1,1)));
                }
                else if($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);
                }
                $this->_readstream($f,4);
            }
            else if ($type=='IDAT')
            {
                // Read image data block
                $data .= $this->_readstream($f,$n);
                $this->_readstream($f,4);
            }
            else if ($type=='IEND')
            {
                break;
            }
            else
            {
                $this->_readstream($f,$n+4);
            }
        }
        while($n);
        
        if($colspace=='Indexed' && empty($pal))
        {
            $this->Error('Missing palette in '.$file);
        }
        
        $info = array('w'=>$w, 'h'=>$h, 'cs'=>$colspace, 'bpc'=>$bpc, 'f'=>'FlateDecode', 'dp'=>$dp, 'pal'=>$pal, 'trns'=>$trns);
        
        if ($ct>=4)
        {
            // Extract alpha channel
            if(!function_exists('gzuncompress'))
            {
                $this->Error('Zlib not available, can\'t handle alpha channel: '.$file);
            }
            
            $data = gzuncompress($data);
            $color = '';
            $alpha = '';
            
            if ($ct==4)
            {
                // Gray image
                $len = 2*$w;
                for ($i=0;$i<$h;$i++)
                {
                    $pos = (1+$len)*$i;
                    $color .= $data[$pos];
                    $alpha .= $data[$pos];
                    $line = substr($data,$pos+1,$len);
                    $color .= preg_replace('/(.)./s','$1',$line);
                    $alpha .= preg_replace('/.(.)/s','$1',$line);
                }
            }
            else
            {
                // RGB image
                $len = 4*$w;
                for ($i=0;$i<$h;$i++)
                {
                    $pos = (1+$len)*$i;
                    $color .= $data[$pos];
                    $alpha .= $data[$pos];
                    $line = substr($data,$pos+1,$len);
                    $color .= preg_replace('/(.{3})./s','$1',$line);
                    $alpha .= preg_replace('/.{3}(.)/s','$1',$line);
                }
            }
            unset($data);
            $data = gzcompress($color);
            $info['smask'] = gzcompress($alpha);
            $this->WithAlpha = true;
            
            if ($this->PDFVersion<'1.4')
            {
                $this->PDFVersion = '1.4';
            }
        }
        $info['data'] = $data;
        return $info;
    }
    
    protected function _readstream($f, $n)
    {
        // Read n bytes from stream
        $res = '';
        while ($n>0 && !feof($f))
        {
            $s = fread($f,$n);
            if($s===false)
            {
                $this->Error('Error while reading stream');
            }
            
            $n -= strlen($s);
            $res .= $s;
        }
        if($n>0)
        {
            $this->Error('Unexpected end of stream');
        }
        
        return $res;
    }
    
    protected function _readint($f)
    {
        // Read a 4-byte integer from stream
        $a = unpack('Ni',$this->_readstream($f,4));
        return $a['i'];
    }
    
    protected function _parsegif($file)
    {
        // Extract info from a GIF file (via PNG conversion)
        if(!function_exists('imagepng'))
        {
            $this->Error('GD extension is required for GIF support');
        }
        
        if (!function_exists('imagecreatefromgif'))
        {
            $this->Error('GD has no GIF read support');
        }
        
        $im = imagecreatefromgif($file);
        if(!$im)
        {
            $this->Error('Missing or incorrect image file: '.$file);
        }
        
        imageinterlace($im,0);
        ob_start();
        imagepng($im);
        $data = ob_get_clean();
        imagedestroy($im);
        $f = fopen('php://temp','rb+');
        if(!$f)
        {
            $this->Error('Unable to create memory stream');
        }
        
        fwrite($f,$data);
        rewind($f);
        $info = $this->_parsepngstream($f,$file);
        fclose($f);
        
        return $info;
    }
    
    protected function _out($s)
    {
        // Add a line to the document
        if($this->state==2)
        {
            $this->pages[$this->page] .= $s."\n";
        }
        else if ($this->state==1)
        {
            $this->_put($s);
        }
        else if($this->state==0)
        {
            $this->Error('No page has been added yet');
        }
        else if ($this->state==3)
        {
            $this->Error('The document is closed');
        }
    }
    
    protected function _put($s)
    {
        $this->buffer .= $s."\n";
    }
    
    protected function _getoffset()
    {
        return strlen($this->buffer);
    }
    
    protected function _newobj($n=null)
    {
        // Begin a new object
        if($n===null)
        {
            $n = ++$this->n;
        }
        
        $this->offsets[$n] = $this->_getoffset();
        $this->_put($n.' 0 obj');
    }
    
    protected function _putstream($data)
    {
        $this->_put('stream');
        $this->_put($data);
        $this->_put('endstream');
    }
    
    protected function _putstreamobject($data)
    {
        if ($this->compress)
        {
            $entries = '/Filter /FlateDecode ';
            $data = gzcompress($data);
        }
        else
        {
            $entries = '';
        }
        
        $entries .= '/Length '.strlen($data);
        $this->_newobj();
        $this->_put('<<'.$entries.'>>');
        $this->_putstream($data);
        $this->_put('endobj');
    }
    
    protected function _putpage($n)
    {
        $this->_newobj();
        $this->_put('<</Type /Page');
        $this->_put('/Parent 1 0 R');
        if (isset($this->PageInfo[$n]['size']))
        {
            $this->_put(sprintf('/MediaBox [0 0 %.2F %.2F]',$this->PageInfo[$n]['size'][0],$this->PageInfo[$n]['size'][1]));
        }
        if (isset($this->PageInfo[$n]['rotation']))
        {
            $this->_put('/Rotate '.$this->PageInfo[$n]['rotation']);
        }
        
        $this->_put('/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]];
                    if(isset($this->PageInfo[$l[0]]['size']))
                    $h = $this->PageInfo[$l[0]]['size'][1];
                    else
                    $h = ($this->DefOrientation=='P') ? $this->DefPageSize[1]*$this->k : $this->DefPageSize[0]*$this->k;
                    $annots .= sprintf('/Dest [%d 0 R /XYZ 0 %.2F null]>>',$this->PageInfo[$l[0]]['n'],$h-$l[1]*$this->k);
                }
            }
            $this->_put($annots.']');
        }
        if ($this->WithAlpha)
        {
            $this->_put('/Group <</Type /Group /S /Transparency /CS /DeviceRGB>>');
        }
        
        $this->_put('/Contents '.($this->n+1).' 0 R>>');
        $this->_put('endobj');
        // Page content
        if(!empty($this->AliasNbPages))
        {
            $this->pages[$n] = str_replace($this->AliasNbPages,$this->page,$this->pages[$n]);
        }
        
        $this->_putstreamobject($this->pages[$n]);
    }
    
    protected function _putpages()
    {
        $nb = $this->page;
        
        for($n=1;$n<=$nb;$n++)
        {
            $this->PageInfo[$n]['n'] = $this->n+1+2*($n-1);
        }
        
        for($n=1;$n<=$nb;$n++)
        {
            $this->_putpage($n);
        }
        
        // Pages root
        $this->_newobj(1);
        $this->_put('<</Type /Pages');
        $kids = '/Kids [';
        for($n=1;$n<=$nb;$n++)
        {
            $kids .= $this->PageInfo[$n]['n'].' 0 R ';
        }
        
        $this->_put($kids.']');
        $this->_put('/Count '.$nb);
        
        if ($this->DefOrientation=='P')
        {
            $w = $this->DefPageSize[0];
            $h = $this->DefPageSize[1];
        }
        else
        {
            $w = $this->DefPageSize[1];
            $h = $this->DefPageSize[0];
        }
        
        $this->_put(sprintf('/MediaBox [0 0 %.2F %.2F]',$w*$this->k,$h*$this->k));
        $this->_put('>>');
        $this->_put('endobj');
    }
    
    protected function _putfonts()
    {
        foreach($this->FontFiles as $file=>$info)
        {
            // Font file embedding
            $this->_newobj();
            $this->FontFiles[$file]['n'] = $this->n;
            $font = file_get_contents($this->fontpath.$file,true);
            if (!$font)
            {
                $this->Error('Font file not found: '.$file);
            }
            $compressed = (substr($file,-2)=='.z');
            if (!$compressed && isset($info['length2']))
            {
                $font = substr($font,6,$info['length1']).substr($font,6+$info['length1']+6,$info['length2']);
            }
            $this->_put('<</Length '.strlen($font));
            
            if ($compressed)
            {
                $this->_put('/Filter /FlateDecode');
            }
            
            $this->_put('/Length1 '.$info['length1']);
            
            if(isset($info['length2']))
            {
                $this->_put('/Length2 '.$info['length2'].' /Length3 0');
            }
            
            $this->_put('>>');
            $this->_putstream($font);
            $this->_put('endobj');
        }
        
        foreach ($this->fonts as $k=>$font)
        {
            // Encoding
            if (isset($font['diff']))
            {
                if(!isset($this->encodings[$font['enc']]))
                {
                    $this->_newobj();
                    $this->_put('<</Type /Encoding /BaseEncoding /WinAnsiEncoding /Differences ['.$font['diff'].']>>');
                    $this->_put('endobj');
                    $this->encodings[$font['enc']] = $this->n;
                }
            }
            // ToUnicode CMap
            if (isset($font['uv']))
            {
                if (isset($font['enc']))
                {
                    $cmapkey = $font['enc'];
                }
                else
                {
                    $cmapkey = $font['name'];
                }
                
                if (!isset($this->cmaps[$cmapkey]))
                {
                    $cmap = $this->_tounicodecmap($font['uv']);
                    $this->_putstreamobject($cmap);
                    $this->cmaps[$cmapkey] = $this->n;
                }
            }
            
            // Font object
            $this->fonts[$k]['n'] = $this->n+1;
            $type = $font['type'];
            $name = $font['name'];
            if ($font['subsetted'])
            {
                $name = 'AAAAAA+'.$name;
            }
            
            if ($type=='Core')
            {
                // Core font
                $this->_newobj();
                $this->_put('<</Type /Font');
                $this->_put('/BaseFont /'.$name);
                $this->_put('/Subtype /Type1');
                if($name!='Symbol' && $name!='ZapfDingbats')
                $this->_put('/Encoding /WinAnsiEncoding');
                if(isset($font['uv']))
                $this->_put('/ToUnicode '.$this->cmaps[$cmapkey].' 0 R');
                $this->_put('>>');
                $this->_put('endobj');
            }
            else if ($type=='Type1' || $type=='TrueType')
            {
                // Additional Type1 or TrueType/OpenType font
                $this->_newobj();
                $this->_put('<</Type /Font');
                $this->_put('/BaseFont /'.$name);
                $this->_put('/Subtype /'.$type);
                $this->_put('/FirstChar 32 /LastChar 255');
                $this->_put('/Widths '.($this->n+1).' 0 R');
                $this->_put('/FontDescriptor '.($this->n+2).' 0 R');
                if(isset($font['diff']))
                {
                    $this->_put('/Encoding '.$this->encodings[$font['enc']].' 0 R');
                }
                else
                {
                    $this->_put('/Encoding /WinAnsiEncoding');
                }
                if (isset($font['uv']))
                {
                    $this->_put('/ToUnicode '.$this->cmaps[$cmapkey].' 0 R');
                }
                
                $this->_put('>>');
                $this->_put('endobj');
                // Widths
                $this->_newobj();
                $cw = &$font['cw'];
                $s = '[';
                for ($i=32;$i<=255;$i++)
                {
                    $s .= $cw[chr($i)].' ';
                }
                
                $this->_put($s.']');
                $this->_put('endobj');
                // Descriptor
                $this->_newobj();
                $s = '<</Type /FontDescriptor /FontName /'.$name;
                foreach($font['desc'] as $k=>$v)
                {
                    $s .= ' /'.$k.' '.$v;
                }
                
                if (!empty($font['file']))
                {
                    $s .= ' /FontFile'.($type=='Type1' ? '' : '2').' '.$this->FontFiles[$font['file']]['n'].' 0 R';
                }
                
                $this->_put($s.'>>');
                $this->_put('endobj');
            }
            else
            {
                // Allow for additional types
                $mtd = '_put'.strtolower($type);
                if(!method_exists($this,$mtd))
                $this->Error('Unsupported font type: '.$type);
                $this->$mtd($font);
            }
        }
    }
    
    protected function _tounicodecmap($uv)
    {
        $ranges = '';
        $nbr = 0;
        $chars = '';
        $nbc = 0;
        
        foreach($uv as $c=>$v)
        {
            if (is_array($v))
            {
                $ranges .= sprintf("<%02X> <%02X> <%04X>\n",$c,$c+$v[1]-1,$v[0]);
                $nbr++;
            }
            else
            {
                $chars .= sprintf("<%02X> <%04X>\n",$c,$v);
                $nbc++;
            }
        }
        
        $s = "/CIDInit /ProcSet findresource begin\n";
        $s .= "12 dict begin\n";
        $s .= "begincmap\n";
        $s .= "/CIDSystemInfo\n";
        $s .= "<</Registry (Adobe)\n";
        $s .= "/Ordering (UCS)\n";
        $s .= "/Supplement 0\n";
        $s .= ">> def\n";
        $s .= "/CMapName /Adobe-Identity-UCS def\n";
        $s .= "/CMapType 2 def\n";
        $s .= "1 begincodespacerange\n";
        $s .= "<00> <FF>\n";
        $s .= "endcodespacerange\n";
        
        if ($nbr>0)
        {
            $s .= "$nbr beginbfrange\n";
            $s .= $ranges;
            $s .= "endbfrange\n";
        }
        
        if ($nbc>0)
        {
            $s .= "$nbc beginbfchar\n";
            $s .= $chars;
            $s .= "endbfchar\n";
        }
        $s .= "endcmap\n";
        $s .= "CMapName currentdict /CMap defineresource pop\n";
        $s .= "end\n";
        $s .= "end";
        return $s;
    }
    
    protected function _putimages()
    {
        foreach (array_keys($this->images) as $file)
        {
            $this->_putimage($this->images[$file]);
            unset($this->images[$file]['data']);
            unset($this->images[$file]['smask']);
        }
    }
    
    protected function _putimage(&$info)
    {
        $this->_newobj();
        $info['n'] = $this->n;
        $this->_put('<</Type /XObject');
        $this->_put('/Subtype /Image');
        $this->_put('/Width '.$info['w']);
        $this->_put('/Height '.$info['h']);
        if($info['cs']=='Indexed')
        {
            $this->_put('/ColorSpace [/Indexed /DeviceRGB '.(strlen($info['pal'])/3-1).' '.($this->n+1).' 0 R]');
        }
        else
        {
            $this->_put('/ColorSpace /'.$info['cs']);
            
            if ($info['cs']=='DeviceCMYK')
            {
                $this->_put('/Decode [1 0 1 0 1 0 1 0]');
            }
        }
        
        $this->_put('/BitsPerComponent '.$info['bpc']);
        if (isset($info['f']))
        {
            $this->_put('/Filter /'.$info['f']);
        }
        
        if (isset($info['dp']))
        {
            $this->_put('/DecodeParms <<'.$info['dp'].'>>');
        }
        
        if (isset($info['trns']) && is_array($info['trns']))
        {
            $trns = '';
            for($i=0;$i<count($info['trns']);$i++)
            $trns .= $info['trns'][$i].' '.$info['trns'][$i].' ';
            $this->_put('/Mask ['.$trns.']');
        }
        
        if (isset($info['smask']))
        {
            $this->_put('/SMask '.($this->n+1).' 0 R');
        }
        
        $this->_put('/Length '.strlen($info['data']).'>>');
        $this->_putstream($info['data']);
        $this->_put('endobj');
        // Soft mask
        if (isset($info['smask']))
        {
            $dp = '/Predictor 15 /Colors 1 /BitsPerComponent 8 /Columns '.$info['w'];
            $smask = array('w'=>$info['w'], 'h'=>$info['h'], 'cs'=>'DeviceGray', 'bpc'=>8, 'f'=>$info['f'], 'dp'=>$dp, 'data'=>$info['smask']);
            $this->_putimage($smask);
        }
        
        // Palette
        if ($info['cs']=='Indexed')
        {
            $this->_putstreamobject($info['pal']);
        }
    }
    
    protected function _putxobjectdict()
    {
        foreach($this->images as $image)
        {
            $this->_put('/I'.$image['i'].' '.$image['n'].' 0 R');
        }
    }
    
    protected function _putresourcedict()
    {
        $this->_put('/ProcSet [/PDF /Text /ImageB /ImageC /ImageI]');
        $this->_put('/Font <<');
        foreach ($this->fonts as $font)
        {
            $this->_put('/F'.$font['i'].' '.$font['n'].' 0 R');
        }
        
        $this->_put('>>');
        $this->_put('/XObject <<');
        $this->_putxobjectdict();
        $this->_put('>>');
    }
    
    protected function _putresources()
    {
        $this->_putfonts();
        $this->_putimages();
        // Resource dictionary
        $this->_newobj(2);
        $this->_put('<<');
        $this->_putresourcedict();
        $this->_put('>>');
        $this->_put('endobj');
    }
    
    protected function _putinfo()
    {
        $this->metadata['Producer'] = 'FPDF '.FPDF_VERSION;
        $this->metadata['CreationDate'] = 'D:'.@date('YmdHis');
        foreach($this->metadata as $key=>$value)
        {
            $this->_put('/'.$key.' '.$this->_textstring($value));
        }
    }
    
    protected function _putcatalog()
    {
        $n = $this->PageInfo[1]['n'];
        $this->_put('/Type /Catalog');
        $this->_put('/Pages 1 0 R');
        
        if ($this->ZoomMode=='fullpage')
        {
            $this->_put('/OpenAction ['.$n.' 0 R /Fit]');
        }
        else if ($this->ZoomMode=='fullwidth')
        {
            $this->_put('/OpenAction ['.$n.' 0 R /FitH null]');
        }
        else if ($this->ZoomMode=='real')
        {
            $this->_put('/OpenAction ['.$n.' 0 R /XYZ null null 1]');
        }
        else if (!is_string($this->ZoomMode))
        {
            $this->_put('/OpenAction ['.$n.' 0 R /XYZ null null '.sprintf('%.2F',$this->ZoomMode/100).']');
        }
        if ($this->LayoutMode=='single')
        {
            $this->_put('/PageLayout /SinglePage');
        }
        else if ($this->LayoutMode=='continuous')
        {
            $this->_put('/PageLayout /OneColumn');
        }
        else if ($this->LayoutMode=='two')
        {
            $this->_put('/PageLayout /TwoColumnLeft');
        }
    }
    
    protected function _putheader()
    {
        $this->_put('%PDF-'.$this->PDFVersion);
    }
    
    protected function _puttrailer()
    {
        $this->_put('/Size '.($this->n+1));
        $this->_put('/Root '.$this->n.' 0 R');
        $this->_put('/Info '.($this->n-1).' 0 R');
    }
    
    protected function _enddoc()
    {
        $this->_putheader();
        $this->_putpages();
        $this->_putresources();
        
        // Info
        $this->_newobj();
        $this->_put('<<');
        $this->_putinfo();
        $this->_put('>>');
        $this->_put('endobj');
        
        // Catalog
        $this->_newobj();
        $this->_put('<<');
        $this->_putcatalog();
        $this->_put('>>');
        $this->_put('endobj');
        
        // Cross-ref
        $offset = $this->_getoffset();
        $this->_put('xref');
        $this->_put('0 '.($this->n+1));
        $this->_put('0000000000 65535 f ');
        
        for ($i=1;$i<=$this->n;$i++)
        {
            $this->_put(sprintf('%010d 00000 n ',$this->offsets[$i]));
        }
        
        // Trailer
        $this->_put('trailer');
        $this->_put('<<');
        $this->_puttrailer();
        $this->_put('>>');
        $this->_put('startxref');
        $this->_put($offset);
        $this->_put('%%EOF');
        $this->state = 3;
    }
}
