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