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<?php
/*******************************************************************************
* FPDF *
* *
* Version: 1.6 *
* Date: 2008-08-03 *
* Author: Olivier PLATHEY *
*******************************************************************************/
define('FPDF_VERSION', '1.6');
class FPDF
{
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 $k; //scale factor (number of points in user unit)
var $DefOrientation; //default orientation
var $CurOrientation; //current orientation
var $PageFormats; //available page formats
var $DefPageFormat; //default page format
var $CurPageFormat; //current page format
var $PageSizes; //array storing non-default page sizes
var $wPt, $hPt; //dimensions of current page in points
var $w, $h; //dimensions of current 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
var $lasth; //height of last printed cell
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 $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 $images; //array of used images
var $PageLinks; //array of links in pages
var $links; //array of internal links
var $AutoPageBreak; //automatic page breaking
var $PageBreakTrigger; //threshold used to trigger page breaks
var $InHeader; //flag set when processing header
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->PageSizes = array();
$this->state = 0;
$this->fonts = array();
$this->FontFiles = array();
$this->diffs = 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->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
$this->PageFormats = array('a3' => array(841.89, 1190.55), 'a4' => array(595.28, 841.89), 'a5' => array(420.94, 595.28),
'letter' => array(612, 792), 'legal' => array(612, 1008));
if (is_string($format))
$format = $this->_getpageformat($format);
$this->DefPageFormat = $format;
$this->CurPageFormat = $format;
//Page orientation
$orientation = strtolower($orientation);
if ($orientation=='p' || $orientation=='portrait') {
$this->DefOrientation = 'P';
$this->w = $this->DefPageFormat[0];
$this->h = $this->DefPageFormat[1];
} elseif ($orientation=='l' || $orientation=='landscape') {
$this->DefOrientation = 'L';
$this->w = $this->DefPageFormat[1];
$this->h = $this->DefPageFormat[0];
} else
$this->Error('Incorrect orientation: ' . $orientation);
$this->CurOrientation = $this->DefOrientation;
$this->wPt = $this->w * $this->k;
$this->hPt = $this->h * $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';
}
/*******************************************************************************
* *
* Protected methods *
* *
*******************************************************************************/
function _dochecks()
{
//Check availability of %F
if (sprintf('%.1F', 1.0)!='1.0')
$this->Error('This version of PHP is not supported');
//Check mbstring overloading
if (ini_get('mbstring.func_overload') & 2)
$this->Error('mbstring overloading must be disabled');
//Disable runtime magic quotes
if (get_magic_quotes_runtime())
@set_magic_quotes_runtime(0);
}
function Error($msg)
{
//Fatal error
die('<b>FPDF error:</b> ' . $msg);
}
function _getpageformat($format)
{
$format = strtolower($format);
if (!isset($this->PageFormats[$format]))
$this->Error('Unknown page format: ' . $format);
$a = $this->PageFormats[$format];
return array($a[0] / $this->k, $a[1] / $this->k);
}
function SetMargins($left, $top, $right = null)
{
//Set left, top and right margins
$this->lMargin = $left;
$this->tMargin = $top;
if ($right===null)
$right = $left;
$this->rMargin = $right;
}
function SetAutoPageBreak($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
$this->compress = false;
}
function SetLeftMargin($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 = $margin;
}
function SetTitle($title, $isUTF8 = false)
{
//Title of document
if ($isUTF8)
$title = $this->_UTF8toUTF16($title);
$this->title = $title;
}
function _UTF8toUTF16($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) + ($c3 & 0x3F));
} elseif ($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 $res;
}
function SetSubject($subject, $isUTF8 = false)
{
//Subject of document
if ($isUTF8)
$subject = $this->_UTF8toUTF16($subject);
$this->subject = $subject;
}
function SetAuthor($author, $isUTF8 = false)
{
//Author of document
if ($isUTF8)
$author = $this->_UTF8toUTF16($author);
$this->author = $author;
}
function SetKeywords($keywords, $isUTF8 = false)
{
//Keywords of document
if ($isUTF8)
$keywords = $this->_UTF8toUTF16($keywords);
$this->keywords = $keywords;
}
function SetCreator($creator, $isUTF8 = false)
{
//Creator of document
if ($isUTF8)
$creator = $this->_UTF8toUTF16($creator);
$this->creator = $creator;
}
function AliasNbPages($alias = '{nb}')
{
//Define an alias for total number of pages
$this->AliasNbPages = $alias;
}
function PageNo()
{
//Get current page number
return $this->page;
}
function SetDrawColor($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);
}
function _out($s)
{
//Add a line to the document
if ($this->state==2)
$this->pages[$this->page] .= $s . "\n";
else
$this->buffer .= $s . "\n";
}
function SetFillColor($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);
}
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!=$this->TextColor);
}
function SetLineWidth($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[$fontkey]))
return;
include_once($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' => $size2);
}
}
function _getfontpath()
{
if (!defined('FPDF_FONTPATH') && is_dir(dirname(__FILE__) . '/font'))
define('FPDF_FONTPATH', dirname(__FILE__) . '/font/');
return defined('FPDF_FONTPATH') ? FPDF_FONTPATH : '';
}
function SetFontSize($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, $y);
}
function Text($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 _escape($s)
{
//Escape special characters in strings
$s = str_replace('\\', '\\\\', $s);
$s = str_replace('(', '\\(', $s);
$s = str_replace(')', '\\)', $s);
$s = str_replace("\r", '\\r', $s);
return $s;
}
function _dounderline($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 * $this->FontSizePt);
}
function GetStringWidth($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 * $this->FontSize / 1000;
}
function MultiCell($w, $h, $txt, $border = 0, $align = 'J', $fill = false)
{
//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 = $this->lMargin;
}
function Cell($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->CurPageFormat);
$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 ($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 AcceptPageBreak()
{
//Accept automatic page break or not
return $this->AutoPageBreak;
}
function AddPage($orientation = '', $format = '')
{
//Start a new page
if ($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, $format);
//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->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, $size);
//Restore colors
if ($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 Open()
{
//Begin document
$this->state = 1;
}
function Footer()
{
//To be implemented in your own inherited class
}
function _endpage()
{
$this->state = 1;
}
function _beginpage($orientation, $format)
{
$this->page++;
$this->pages[$this->page] = '';
$this->state = 2;
$this->x = $this->lMargin;
$this->y = $this->tMargin;
$this->FontFamily = '';
//Check page size
if ($orientation=='')
$orientation = $this->DefOrientation;
else
$orientation = strtoupper($orientation[0]);
if ($format=='')
$format = $this->DefPageFormat;
else {
if (is_string($format))
$format = $this->_getpageformat($format);
}
if ($orientation!=$this->CurOrientation || $format[0]!=$this->CurPageFormat[0] || $format[1]!=$this->CurPageFormat[1]) {
//New size
if ($orientation=='P') {
$this->w = $format[0];
$this->h = $format[1];
} else {
$this->w = $format[1];
$this->h = $format[0];
}
$this->wPt = $this->w * $this->k;
$this->hPt = $this->h * $this->k;
$this->PageBreakTrigger = $this->h - $this->bMargin;
$this->CurOrientation = $orientation;
$this->CurPageFormat = $format;
}
if ($orientation!=$this->DefOrientation || $format[0]!=$this->DefPageFormat[0] || $format[1]!=$this->DefPageFormat[1])
$this->PageSizes[$this->page] = array($this->wPt, $this->hPt);
}
function SetFont($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_once($this->_getfontpath() . $file . '.php');
if (!isset($fpdf_charwidths[$fontkey]))
$this->Error('Could not include font metric file');
}
$i = count($this->fonts) + 1;
$name = $this->CoreFonts[$fontkey];
$cw = $fpdf_charwidths[$fontkey];
$this->fonts[$fontkey] = array('i' => $i, 'type' => 'core', 'name' => $name, 'up' => -100, 'ut' => 50, 'cw' => $cw);
} 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'], $this->FontSizePt));
}
function Header()
{
//To be implemented in your own inherited class
}
function Link($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, $link);
}
function Write($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, $link);
}
function Ln($h = null)
{
//Line feed; default value is last cell height
$this->x = $this->lMargin;
if ($h===null)
$this->y += $this->lasth;
else
$this->y += $h;
}
function Image($file, $x = null, $y = null, $w = 0, $h = 0, $type = '', $link = '')
{
//Put an image on the page
if (!isset($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 72 dpi
$w = $info['w'] / $this->k;
$h = $info['h'] / $this->k;
} elseif ($w==0)
$w = $h * $info['w'] / $info['h'];
elseif ($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->CurPageFormat);
$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);
}
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 $this->y;
}
function SetXY($x, $y)
{
//Set x and y positions
$this->SetY($y);
$this->SetX($x);
}
function SetY($y)
{
//Set y position and reset x
$this->x = $this->lMargin;
if ($y >= 0)
$this->y = $y;
else
$this->y = $this->h + $y;
}
function Output($name = '', $dest = '')
{
//Output PDF to some destination
if ($this->state < 3)
$this->Close();
$dest = strtoupper($dest);
if ($dest=='') {
if ($name=='') {
$name = 'doc.pdf';
$dest = 'I';
} else
$dest = 'F';
}
switch ($dest) {
case 'I':
//Send to standard output
if (ob_get_length())
$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())
$this->Error('Some data has already been output, can\'t send PDF file');
header('Content-Length: ' . strlen($this->buffer));
header('Content-Disposition: inline; filename="' . $name . '"');
header('Cache-Control: private, max-age=0, must-revalidate');
header('Pragma: public');
ini_set('zlib.output_compression', '0');
}
echo $this->buffer;
break;
case 'D':
//Download file
if (ob_get_length())
$this->Error('Some data has already been output, can\'t send PDF file');
header('Content-Type: application/x-download');
if (headers_sent())
$this->Error('Some data has already been output, can\'t send PDF file');
header('Content-Length: ' . strlen($this->buffer));
header('Content-Disposition: attachment; filename="' . $name . '"');
header('Cache-Control: private, max-age=0, must-revalidate');
header('Pragma: public');
ini_set('zlib.output_compression', '0');
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: ' . $dest);
}
return '';
}
function Close()
{
//Terminate document
if ($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 _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 _putheader()
{
$this->_out('%PDF-' . $this->PDFVersion);
}
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->DefPageFormat[0] * $this->k;
$hPt = $this->DefPageFormat[1] * $this->k;
} else {
$wPt = $this->DefPageFormat[1] * $this->k;
$hPt = $this->DefPageFormat[0] * $this->k;
}
$filter = ($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->PageSizes[$n]))
$this->_out(sprintf('/MediaBox [0 0 %.2F %.2F]', $this->PageSizes[$n][0], $this->PageSizes[$n][1]));
$this->_out('/Resources 2 0 R');
if (isset($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->PageSizes[$l[0]]) ? $this->PageSizes[$l[0]][1] : $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 _newobj()
{
//Begin a new object
$this->n++;
$this->offsets[$this->n] = strlen($this->buffer);
$this->_out($this->n . ' 0 obj');
}
function _textstring($s)
{
//Format a text string
return '(' . $this->_escape($s) . ')';
}
function _putstream($s)
{
$this->_out('stream');
$this->_out($s);
$this->_out('endstream');
}
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 _putfonts()
{
$nf = $this->n;
foreach ($this->diffs as $diff) {
//Encodings
$this->_newobj();
$this->_out('<</Type /Encoding /BaseEncoding /WinAnsiEncoding /Differences [' . $diff . ']>>');
$this->_out('endobj');
}
foreach ($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);
$this->_out('endobj');
}
foreach ($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 _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();
$this->_out('>>');
}
function _putxobjectdict()
{
foreach ($this->images as $image)
$this->_out('/I' . $image['i'] . ' ' . $image['n'] . ' 0 R');
}
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 _puttrailer()
{
$this->_out('/Size ' . ($this->n + 1));
$this->_out('/Root ' . $this->n . ' 0 R');
$this->_out('/Info ' . ($this->n - 1) . ' 0 R');
}
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, 8192);
fclose($f);
return array('w' => $a[0], 'h' => $a[1], 'cs' => $colspace, 'bpc' => $bpc, 'f' => 'DCTDecode', 'data' => $data);
}
function _parsegif($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);
$tmp = tempnam('.', 'gif');
if (!$tmp)
$this->Error('Unable to create a temporary file');
if (!imagepng($im, $tmp))
$this->Error('Error while saving to temporary file');
imagedestroy($im);
$info = $this->_parsepng($tmp);
unlink($tmp);
return $info;
}
function _parsepng($file)
{
//Extract info from a PNG file
$f = fopen($file, 'rb');
if (!$f)
$this->Error('Can\'t open image file: ' . $file);
//Check signature
if ($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)
$colspace = 'DeviceGray';
elseif ($ct==2)
$colspace = 'DeviceRGB';
elseif ($ct==3)
$colspace = 'Indexed';
else
$this->Error('Alpha channel not supported: ' . $file);
if (ord($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);
$parms = '/DecodeParms <</Predictor 15 /Colors ' . ($ct==2 ? 3 : 1) . ' /BitsPerComponent ' . $bpc . ' /Columns ' . $w . '>>';
//Scan chunks looking for palette, transparency and image data
$pal = '';
$trns = '';
$data = '';
do {
$n = $this->_readint($f);
$type = $this->_readstream($f, 4);
if ($type=='PLTE') {
//Read palette
$pal = $this->_readstream($f, $n);
$this->_readstream($f, 4);
} elseif ($type=='tRNS') {
//Read transparency info
$t = $this->_readstream($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);
}
$this->_readstream($f, 4);
} elseif ($type=='IDAT') {
//Read image data block
$data .= $this->_readstream($f, $n);
$this->_readstream($f, 4);
} elseif ($type=='IEND')
break;
else
$this->_readstream($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' => $data);
}
function _readstream($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 $res;
}
function _readint($f)
{
//Read a 4-byte integer from stream
$a = unpack('Ni', $this->_readstream($f, 4));
return $a['i'];
}
//End of class
}
//Handle special IE contype request
if (isset($_SERVER['HTTP_USER_AGENT']) && $_SERVER['HTTP_USER_AGENT']=='contype') {
header('Content-Type: application/pdf');
exit;
}
?>