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<?php
/*******************************************************************************
* Software: UFPDF, Unicode Free PDF generator *
* Version: 0.1 *
* based on FPDF 1.52 by Olivier PLATHEY *
* Date: 2004-09-01 *
* Author: Steven Wittens <steven@acko.net> *
* License: GPL *
* *
* UFPDF is a modification of FPDF to support Unicode through UTF-8. *
* *
*******************************************************************************/
if(!class_exists('UFPDF'))
{
define('UFPDF_VERSION','0.1');
include_once './libraries/fpdf/fpdf.php';
class UFPDF extends FPDF
{
/*******************************************************************************
* *
* Public methods *
* *
*******************************************************************************/
function UFPDF($orientation='P',$unit='mm',$format='A4')
{
FPDF::FPDF($orientation, $unit, $format);
}
function GetStringWidth($s)
{
//Get width of a string in the current font
$s = (string)$s;
$codepoints=$this->utf8_to_codepoints($s);
$cw=&$this->CurrentFont['cw'];
$w=0;
foreach($codepoints as $cp)
$w+=isset($cw[$cp])?$cw[$cp]:0;
return $w*$this->FontSize/1000;
}
function AddFont($family,$style='',$file='')
{
//Add a TrueType or Type1 font
$family=strtolower($family);
if($family=='arial')
$family='helvetica';
$style=strtoupper($style);
if($style=='IB')
$style='BI';
if(isset($this->fonts[$family.$style]))
$this->Error('Font already added: '.$family.' '.$style);
if($file=='')
$file=str_replace(' ','',$family).strtolower($style).'.php';
if(defined('FPDF_FONTPATH'))
$file=FPDF_FONTPATH.$file;
include($file);
if(!isset($name))
$this->Error('Could not include font definition file');
$i=count($this->fonts)+1;
$this->fonts[$family.$style]=array('i'=>$i,'type'=>$type,'name'=>$name,'desc'=>$desc,'up'=>$up,'ut'=>$ut,'cw'=>$cw,'file'=>$file,'ctg'=>$ctg);
if($file)
{
if($type=='TrueTypeUnicode')
$this->FontFiles[$file]=array('length1'=>$originalsize);
else
$this->FontFiles[$file]=array('length1'=>$size1,'length2'=>$size2);
}
}
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,$this->_escapetext($txt));
if($this->underline and $txt!='')
$s.=' '.$this->_dounderline($x,$y,$this->GetStringWidth($txt),$txt);
if($this->ColorFlag)
$s='q '.$this->TextColor.' '.$s.' Q';
$this->_out($s);
}
function AcceptPageBreak()
{
//Accept automatic page break or not
return $this->AutoPageBreak;
}
function Cell($w,$h=0,$txt='',$border=0,$ln=0,$align='',$fill=0,$link='')
{
//Output a cell
$k=$this->k;
if($this->y+$h>$this->PageBreakTrigger and !$this->InFooter and $this->AcceptPageBreak())
{
//Automatic page break
$x=$this->x;
$ws=$this->ws;
if($ws>0)
{
$this->ws=0;
$this->_out('0 Tw');
}
$this->AddPage($this->CurOrientation);
$this->x=$x;
if($ws>0)
{
$this->ws=$ws;
$this->_out(sprintf('%.3f Tw',$ws*$k));
}
}
if($w==0)
$w=$this->w-$this->rMargin-$this->x;
$s='';
if($fill==1 or $border==1)
{
if($fill==1)
$op=($border==1) ? 'B' : 'f';
else
$op='S';
$s=sprintf('%.2f %.2f %.2f %.2f re %s ',$this->x*$k,($this->h-$this->y)*$k,$w*$k,-$h*$k,$op);
}
if(is_string($border))
{
$x=$this->x;
$y=$this->y;
if(is_int(strpos($border,'L')))
$s.=sprintf('%.2f %.2f m %.2f %.2f l S ',$x*$k,($this->h-$y)*$k,$x*$k,($this->h-($y+$h))*$k);
if(is_int(strpos($border,'T')))
$s.=sprintf('%.2f %.2f m %.2f %.2f l S ',$x*$k,($this->h-$y)*$k,($x+$w)*$k,($this->h-$y)*$k);
if(is_int(strpos($border,'R')))
$s.=sprintf('%.2f %.2f m %.2f %.2f l S ',($x+$w)*$k,($this->h-$y)*$k,($x+$w)*$k,($this->h-($y+$h))*$k);
if(is_int(strpos($border,'B')))
$s.=sprintf('%.2f %.2f m %.2f %.2f l S ',$x*$k,($this->h-($y+$h))*$k,($x+$w)*$k,($this->h-($y+$h))*$k);
}
if($txt!='')
{
$width = $this->GetStringWidth($txt);
if($align=='R')
$dx=$w-$this->cMargin-$width;
elseif($align=='C')
$dx=($w-$width)/2;
else
$dx=$this->cMargin;
if($this->ColorFlag)
$s.='q '.$this->TextColor.' ';
$txtstring=$this->_escapetext($txt);
$s.=sprintf('BT %.2f %.2f Td %s Tj ET',($this->x+$dx)*$k,($this->h-($this->y+.5*$h+.3*$this->FontSize))*$k,$txtstring);
if($this->underline)
$s.=' '.$this->_dounderline($this->x+$dx,$this->y+.5*$h+.3*$this->FontSize,$width,$txt);
if($this->ColorFlag)
$s.=' Q';
if($link)
$this->Link($this->x+$dx,$this->y+.5*$h-.5*$this->FontSize,$width,$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;
}
/*******************************************************************************
* *
* Protected methods *
* *
*******************************************************************************/
function _puttruetypeunicode($font) {
//Type0 Font
$this->_newobj();
$this->_out('<</Type /Font');
$this->_out('/Subtype /Type0');
$this->_out('/BaseFont /'. $font['name'] .'-UCS');
$this->_out('/Encoding /Identity-H');
$this->_out('/DescendantFonts ['. ($this->n + 1) .' 0 R]');
$this->_out('>>');
$this->_out('endobj');
//CIDFont
$this->_newobj();
$this->_out('<</Type /Font');
$this->_out('/Subtype /CIDFontType2');
$this->_out('/BaseFont /'. $font['name']);
$this->_out('/CIDSystemInfo <</Registry (Adobe) /Ordering (UCS) /Supplement 0>>');
$this->_out('/FontDescriptor '. ($this->n + 1) .' 0 R');
$c = 0;
$widths = '';
foreach ($font['cw'] as $i => $w) {
$widths .= $i .' ['. $w.'] ';
}
$this->_out('/W ['. $widths .']');
$this->_out('/CIDToGIDMap '. ($this->n + 2) .' 0 R');
$this->_out('>>');
$this->_out('endobj');
//Font descriptor
$this->_newobj();
$this->_out('<</Type /FontDescriptor');
$this->_out('/FontName /'.$font['name']);
$s = '';
foreach ($font['desc'] as $k => $v) {
$s .= ' /'. $k .' '. $v;
}
if ($font['file']) {
$s .= ' /FontFile2 '. $this->FontFiles[$font['file']]['n'] .' 0 R';
}
$this->_out($s);
$this->_out('>>');
$this->_out('endobj');
//Embed CIDToGIDMap
$this->_newobj();
if(defined('FPDF_FONTPATH'))
$file=FPDF_FONTPATH.$font['ctg'];
else
$file=$font['ctg'];
$size=filesize($file);
if(!$size)
$this->Error('Font file not found');
$this->_out('<</Length '.$size);
if(substr($file,-2) == '.z')
$this->_out('/Filter /FlateDecode');
$this->_out('>>');
$f = fopen($file,'rb');
$this->_putstream(fread($f,$size));
fclose($f);
$this->_out('endobj');
}
function _dounderline($x,$y,$width,$txt)
{
//Underline text
$up=$this->CurrentFont['up'];
$ut=$this->CurrentFont['ut'];
$w=$width+$this->ws*substr_count($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*$this->FontSizePt);
}
function _textstring($s)
{
//Convert to UTF-16BE
$s = $this->utf8_to_utf16be($s);
//Escape necessary characters
return '('. strtr($s, array(')' => '\\)', '(' => '\\(', '\\' => '\\\\')) .')';
}
function _strreplace($what, $to, $where) {
$to = '' . $to;
return str_replace($this->utf8_to_utf16be($what, false), $this->utf8_to_utf16be($to, false), $where);
}
function _escapetext($s)
{
//Convert to UTF-16BE
$s = $this->utf8_to_utf16be($s, false);
//Escape necessary characters
return '('. strtr($s, array(')' => '\\)', '(' => '\\(', '\\' => '\\\\')) .')';
}
function _putinfo()
{
$this->_out('/Producer '.$this->_textstring('UFPDF '. UFPDF_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')));
}
// UTF-8 to UTF-16BE conversion.
// Correctly handles all illegal UTF-8 sequences.
function utf8_to_utf16be(&$txt, $bom = true) {
$l = strlen($txt);
$out = $bom ? "\xFE\xFF" : '';
for ($i = 0; $i < $l; ++$i) {
$c = ord($txt{$i});
// ASCII
if ($c < 0x80) {
$out .= "\x00". $txt{$i};
}
// Lost continuation byte
else if ($c < 0xC0) {
$out .= "\xFF\xFD";
continue;
}
// Multibyte sequence leading byte
else {
if ($c < 0xE0) {
$s = 2;
}
else if ($c < 0xF0) {
$s = 3;
}
else if ($c < 0xF8) {
$s = 4;
}
// 5/6 byte sequences not possible for Unicode.
else {
$out .= "\xFF\xFD";
while (ord($txt{$i + 1}) >= 0x80 && ord($txt{$i + 1}) < 0xC0) { ++$i; }
continue;
}
$q = array($c);
// Fetch rest of sequence
$l = strlen($txt);
while ($i + 1 < $l && ord($txt{$i + 1}) >= 0x80 && ord($txt{$i + 1}) < 0xC0) { ++$i; $q[] = ord($txt{$i}); }
// Check length
if (count($q) != $s) {
$out .= "\xFF\xFD";
continue;
}
switch ($s) {
case 2:
$cp = (($q[0] ^ 0xC0) << 6) | ($q[1] ^ 0x80);
// Overlong sequence
if ($cp < 0x80) {
$out .= "\xFF\xFD";
}
else {
$out .= chr($cp >> 8);
$out .= chr($cp & 0xFF);
}
continue;
case 3:
$cp = (($q[0] ^ 0xE0) << 12) | (($q[1] ^ 0x80) << 6) | ($q[2] ^ 0x80);
// Overlong sequence
if ($cp < 0x800) {
$out .= "\xFF\xFD";
}
// Check for UTF-8 encoded surrogates (caused by a bad UTF-8 encoder)
else if ($c > 0xD800 && $c < 0xDFFF) {
$out .= "\xFF\xFD";
}
else {
$out .= chr($cp >> 8);
$out .= chr($cp & 0xFF);
}
continue;
case 4:
$cp = (($q[0] ^ 0xF0) << 18) | (($q[1] ^ 0x80) << 12) | (($q[2] ^ 0x80) << 6) | ($q[3] ^ 0x80);
// Overlong sequence
if ($cp < 0x10000) {
$out .= "\xFF\xFD";
}
// Outside of the Unicode range
else if ($cp >= 0x10FFFF) {
$out .= "\xFF\xFD";
}
else {
// Use surrogates
$cp -= 0x10000;
$s1 = 0xD800 | ($cp >> 10);
$s2 = 0xDC00 | ($cp & 0x3FF);
$out .= chr($s1 >> 8);
$out .= chr($s1 & 0xFF);
$out .= chr($s2 >> 8);
$out .= chr($s2 & 0xFF);
}
continue;
}
}
}
return $out;
}
// UTF-8 to codepoint array conversion.
// Correctly handles all illegal UTF-8 sequences.
function utf8_to_codepoints(&$txt) {
$l = strlen($txt);
$out = array();
for ($i = 0; $i < $l; ++$i) {
$c = ord($txt{$i});
// ASCII
if ($c < 0x80) {
$out[] = ord($txt{$i});
}
// Lost continuation byte
else if ($c < 0xC0) {
$out[] = 0xFFFD;
continue;
}
// Multibyte sequence leading byte
else {
if ($c < 0xE0) {
$s = 2;
}
else if ($c < 0xF0) {
$s = 3;
}
else if ($c < 0xF8) {
$s = 4;
}
// 5/6 byte sequences not possible for Unicode.
else {
$out[] = 0xFFFD;
while (ord($txt{$i + 1}) >= 0x80 && ord($txt{$i + 1}) < 0xC0) { ++$i; }
continue;
}
$q = array($c);
// Fetch rest of sequence
$l = strlen($txt);
while ($i + 1 < $l && ord($txt{$i + 1}) >= 0x80 && ord($txt{$i + 1}) < 0xC0) { ++$i; $q[] = ord($txt{$i}); }
// Check length
if (count($q) != $s) {
$out[] = 0xFFFD;
continue;
}
switch ($s) {
case 2:
$cp = (($q[0] ^ 0xC0) << 6) | ($q[1] ^ 0x80);
// Overlong sequence
if ($cp < 0x80) {
$out[] = 0xFFFD;
}
else {
$out[] = $cp;
}
continue;
case 3:
$cp = (($q[0] ^ 0xE0) << 12) | (($q[1] ^ 0x80) << 6) | ($q[2] ^ 0x80);
// Overlong sequence
if ($cp < 0x800) {
$out[] = 0xFFFD;
}
// Check for UTF-8 encoded surrogates (caused by a bad UTF-8 encoder)
else if ($c > 0xD800 && $c < 0xDFFF) {
$out[] = 0xFFFD;
}
else {
$out[] = $cp;
}
continue;
case 4:
$cp = (($q[0] ^ 0xF0) << 18) | (($q[1] ^ 0x80) << 12) | (($q[2] ^ 0x80) << 6) | ($q[3] ^ 0x80);
// Overlong sequence
if ($cp < 0x10000) {
$out[] = 0xFFFD;
}
// Outside of the Unicode range
else if ($cp >= 0x10FFFF) {
$out[] = 0xFFFD;
}
else {
$out[] = $cp;
}
continue;
}
}
}
return $out;
}
//End of class
}
}
?>
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