include line break fixes from Andrea Rossato
This commit is contained in:
Roland Gruber
parent
0ef7472634
commit
9362e92c82
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@ -9,6 +9,9 @@
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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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* This file includes modifications from Andrea Rossato which fix line breaking *
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* in Write()/MultiCell(). *
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* *
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*******************************************************************************/
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if(!class_exists('UFPDF'))
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@ -17,6 +20,12 @@ define('UFPDF_VERSION','0.1');
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include_once 'fpdf.php';
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/**
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* Main UFPDF class for creating Unicode PDF documents
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*
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* derives from FPDF class
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* @see FPDF
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*/
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class UFPDF extends FPDF
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{
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@ -34,11 +43,22 @@ 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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$codepoints=$this->utf8_to_codepoints(trim($s));
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$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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foreach($codepoints as $cp) {
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if (isset($cw[$cp])) {
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$w+=$cw[$cp];
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}
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else if (isset($cw[ord($cp)])) {
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$w+=$cw[ord($cp)];
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}
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else if (isset($cw[chr($cp)])) {
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$w+=$cw[chr($cp)];
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}
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//-- adjust width for incorrect hebrew chars
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if ($cp>1480 && $cp < 1550) $w -= $cw[$cp]/1.8;
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}
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return $w*$this->FontSize/1000;
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}
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@ -88,7 +108,7 @@ function AcceptPageBreak()
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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,$link='')
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function Cell($w,$h=0,$txt='',$border=0,$ln=0,$align='J',$fill=0,$link='')
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{
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//Output a cell
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$k=$this->k;
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@ -168,6 +188,220 @@ function Cell($w,$h=0,$txt='',$border=0,$ln=0,$align='',$fill=0,$link='')
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$this->x+=$w;
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}
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function MultiCell($w,$h,$txt,$border=0,$align='J',$fill=0)
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{
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//Output text with automatic or explicit line breaks
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$cw=&$this->CurrentFont['cw'];
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$cp=$this->utf8_to_codepoints(trim($txt));
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//print_r($cp);
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if($w==0)
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$w=$this->w-$this->rMargin-$this->x;
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$wmax=($w-2*$this->cMargin)*1000/$this->FontSize;
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//echo $w;
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$s=str_replace("\r",'',$txt);
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$nb=$this->strlen($s);
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if($nb>0 and $s[$nb-1]=="\n")
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$nb--;
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$b=0;
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if($border)
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{
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if($border==1)
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{
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$border='LTRB';
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$b='LRT';
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$b2='LR';
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}
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else
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{
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$b2='';
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if(is_int(strpos($border,'L')))
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$b2.='L';
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if(is_int(strpos($border,'R')))
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$b2.='R';
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$b=is_int(strpos($border,'T')) ? $b2.'T' : $b2;
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}
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}
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$sep=-1;
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$i=0;
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$j=0;
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$l=0;
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$ns=0;
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$nl=1;
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$char = 0;
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while($i<$nb)
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{
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//Get next character
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$c = $this->code2utf($cp[$i]);
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$charw = $cw[$cp[$i]];
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if($c=="\n")
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{
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//Explicit line break
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if($this->ws>0)
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{
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$this->ws=0;
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$this->_out('0 Tw');
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}
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$this->Cell($w,$h,$this->utf8_substr($cp,$j,$i-$j,"UTF-8"),$b,2,$align,$fill);
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$i++;
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$sep=-1;
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$j=$i;
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$l=0;
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$ns=0;
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$nl++;
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if($border and $nl==2)
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$b=$b2;
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continue;
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}
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if($c==' ')
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{
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$sep=$i;
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$ls=$l;
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$ns++;
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}
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$l+=$charw;
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if($l>$wmax)
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{
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//Automatic line break
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if($sep==-1)
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{
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if($i==$j)
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$i++;
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if($this->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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$this->Cell($w,$h,$this->utf8_substr($cp,$j,$i-$j,"UTF-8"),$b,2,$align,$fill);
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}
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else
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{
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if($align=='J')
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{
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$len_ligne = $this->GetStringWidth($this->utf8_substr($cp,$j,$sep-$j,"UTF-8"));
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$nb_carac = $this->strlen($this->utf8_substr($cp,$j,$sep-$j,"UTF-8"));
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$ecart = (($w-2) - $len_ligne) / $nb_carac;
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$this->_out(sprintf('BT %.3f Tc ET',$ecart*$this->k));
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//$this->ws=($ns>1) ? ($wmax-$ls)/1000*$this->FontSize/($ns-1) : 0;
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//$this->_out(sprintf('%.3f Tw',$this->ws*$this->k));
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//echo ($wmax-$ls)/1000*$this->FontSize/($ns-1)."=".($wmax-$ls)."<br>"; //$andrea = sprintf('%.3f Tw',$this->ws*$this->k);
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}
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$this->Cell($w,$h,$this->utf8_substr($cp,$j,$sep-$j,"UTF-8"),$b,2,$align,$fill);
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$i=$sep+1;
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}
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$sep=-1;
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$j=$i;
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$l=0;
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$ns=0;
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$nl++;
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if($border and $nl==2)
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$b=$b2;
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}
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else
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$i++;
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}
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//Last chunk
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if($this->ws>0)
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{
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$this->ws=0;
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$this->_out('0 Tw');
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}
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if($border and is_int(strpos($border,'B')))
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$b.='B';
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$this->Cell($w,$h,$this->utf8_substr($cp,$j,$i-$j,"UTF-8"),$b,2,$align,$fill);
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$this->x=$this->lMargin;
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}
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function Write($h,$txt,$link='')
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{
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//Output text in flowing mode
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$cw=&$this->CurrentFont['cw'];
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$cp=$this->utf8_to_codepoints(trim($txt));
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$w=$this->w-$this->rMargin-$this->x;
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$wmax=($w-2*$this->cMargin)*1000/$this->FontSize;
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$s=str_replace("\r",'',$txt);
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$nb=$this->strlen($s);
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$sep=-1;
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$i=0;
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$j=0;
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$l=0;
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$nl=1;
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while($i<$nb)
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{
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//Get next character
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$c=$s{$i};
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$charw = $cw[$cp[$i]];
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if($c=="\n")
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{
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//Explicit line break
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$this->Cell($w,$h,$this->utf8_substr($cp,$j,$i-$j,"UTF-8"),0,2,'',0,$link);
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$i++;
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$sep=-1;
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$j=$i;
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$l=0;
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if($nl==1)
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{
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$this->x=$this->lMargin;
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$w=$this->w-$this->rMargin-$this->x;
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$wmax=($w-2*$this->cMargin)*1000/$this->FontSize;
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}
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$nl++;
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continue;
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}
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if($c==' ')
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$sep=$i;
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$l+=$charw;
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if($l>$wmax)
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{
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//Automatic line break
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if($sep==-1)
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{
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if($this->x>$this->lMargin)
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{
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//Move to next line
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$this->x=$this->lMargin;
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$this->y+=$h;
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$w=$this->w-$this->rMargin-$this->x;
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$wmax=($w-2*$this->cMargin)*1000/$this->FontSize;
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$i++;
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$nl++;
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continue;
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}
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if($i==$j)
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$i++;
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$this->Cell($w,$h,$this->utf8_substr($cp,$j,$i-$j,"UTF-8"),0,2,'',0,$link);
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}
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else
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{
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$this->Cell($w,$h,$this->utf8_substr($cp,$j,$sep-$j,"UTF-8"),0,2,'',0,$link);
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$i=$sep+1;
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}
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$sep=-1;
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$j=$i;
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$l=0;
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if($nl==1)
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{
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$this->x=$this->lMargin;
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$w=$this->w-$this->rMargin-$this->x;
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$wmax=($w-2*$this->cMargin)*1000/$this->FontSize;
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}
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$nl++;
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}
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else
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$i++;
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}
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//Last chunk
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if($i!=$j)
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$this->Cell($l/1000*$this->FontSize,$h,$this->utf8_substr($cp,$j, "", "UTF-8"),0,0,'',0,$link);
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}
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function AliasNbPages($alias='{nb}')
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{
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//Define an alias for total number of pages
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$this->AliasNbPages=$this->utf8_to_utf16be($alias,false);
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}
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/*******************************************************************************
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* *
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* Protected methods *
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@ -179,7 +413,7 @@ function _puttruetypeunicode($font) {
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$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('/BaseFont /'. $font['name'] );
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$this->_out('/Encoding /Identity-H');
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$this->_out('/DescendantFonts ['. ($this->n + 1) .' 0 R]');
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$this->_out('>>');
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@ -193,6 +427,7 @@ function _puttruetypeunicode($font) {
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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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$widths = "";
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foreach ($font['cw'] as $i => $w) {
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$widths .= $i .' ['. $w.'] ';
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}
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@ -205,6 +440,7 @@ function _puttruetypeunicode($font) {
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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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$s = "";
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foreach ($font['desc'] as $k => $v) {
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$s .= ' /'. $k .' '. $v;
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}
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@ -275,10 +511,84 @@ function _putinfo()
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$this->_out('/CreationDate '.$this->_textstring('D:'.date('YmdHis')));
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}
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function _putpages()
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{
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$nb=$this->page;
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if(!empty($this->AliasNbPages))
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{
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$nbstr = $this->utf8_to_utf16be($nb,false);
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//Replace number of pages
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for($n=1;$n<=$nb;$n++) {
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$this->pages[$n]=str_replace($this->AliasNbPages,$nbstr,$this->pages[$n]);
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}
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}
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if($this->DefOrientation=='P')
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{
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$wPt=$this->fwPt;
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$hPt=$this->fhPt;
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}
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else
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{
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$wPt=$this->fhPt;
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$hPt=$this->fwPt;
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}
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$filter=($this->compress) ? '/Filter /FlateDecode ' : '';
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for($n=1;$n<=$nb;$n++)
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{
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//Page
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$this->_newobj();
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$this->_out('<</Type /Page');
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$this->_out('/Parent 1 0 R');
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if(isset($this->OrientationChanges[$n]))
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$this->_out(sprintf('/MediaBox [0 0 %.2f %.2f]',$hPt,$wPt));
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$this->_out('/Resources 2 0 R');
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if(isset($this->PageLinks[$n]))
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{
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//Links
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$annots='/Annots [';
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foreach($this->PageLinks[$n] as $pl)
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{
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$rect=sprintf('%.2f %.2f %.2f %.2f',$pl[0],$pl[1],$pl[0]+$pl[2],$pl[1]-$pl[3]);
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$annots.='<</Type /Annot /Subtype /Link /Rect ['.$rect.'] /Border [0 0 0] ';
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if(is_string($pl[4]))
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$annots.='/A <</S /URI /URI '.$this->_textstring($pl[4]).'>>>>';
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else
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{
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$l=$this->links[$pl[4]];
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$h=isset($this->OrientationChanges[$l[0]]) ? $wPt : $hPt;
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$annots.=sprintf('/Dest [%d 0 R /XYZ 0 %.2f null]>>',1+2*$l[0],$h-$l[1]*$this->k);
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}
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}
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$this->_out($annots.']');
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}
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$this->_out('/Contents '.($this->n+1).' 0 R>>');
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$this->_out('endobj');
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//Page content
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$p=($this->compress) ? gzcompress($this->pages[$n]) : $this->pages[$n];
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$this->_newobj();
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$this->_out('<<'.$filter.'/Length '.strlen($p).'>>');
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$this->_putstream($p);
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$this->_out('endobj');
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}
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//Pages root
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$this->offsets[1]=strlen($this->buffer);
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$this->_out('1 0 obj');
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$this->_out('<</Type /Pages');
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$kids='/Kids [';
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for($i=0;$i<$nb;$i++)
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$kids.=(3+2*$i).' 0 R ';
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$this->_out($kids.']');
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$this->_out('/Count '.$nb);
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$this->_out(sprintf('/MediaBox [0 0 %.2f %.2f]',$wPt,$hPt));
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$this->_out('>>');
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$this->_out('endobj');
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}
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// UTF-8 to UTF-16BE conversion.
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// Correctly handles all illegal UTF-8 sequences.
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function utf8_to_utf16be(&$txt, $bom = true) {
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$l = strlen($txt);
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$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{$i});
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@ -376,10 +686,38 @@ function utf8_to_utf16be(&$txt, $bom = true) {
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return $out;
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}
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function code2utf($num){
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if($num<128)return chr($num);
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if($num<2048)return chr(($num>>6)+192).chr(($num&63)+128);
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if($num<65536)return chr(($num>>12)+224).chr((($num>>6)&63)+128).chr(($num&63)+128);
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if($num<2097152)return chr(($num>>18)+240).chr((($num>>12)&63)+128).chr((($num>>6)&63)+128). chr(($num&63)+128);
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return '';
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}
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function strlen($s) {
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return strlen(utf8_decode($s));
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}
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function utf8_substr($str,$start)
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{
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if( func_num_args() >= 3 ) {
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$end = func_get_arg( 2 );
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for ($i=$start; $i < ($start+$end); $i++)
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$rs .= $this->code2utf($str[$i]);
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} else {
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for ($i=$start; $i < count($str); $i++)
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$rs .= $this->code2utf($str[$i]);
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}
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return $rs;
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}
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// UTF-8 to codepoint array conversion.
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// Correctly handles all illegal UTF-8 sequences.
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function utf8_to_codepoints(&$txt) {
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$l = strlen($txt);
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$txt .= " ";
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$out = array();
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for ($i = 0; $i < $l; ++$i) {
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$c = ord($txt{$i});
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