<?php
require('fpdf.php');

class PDF_Chinese extends FPDF
{
	private $Big5_widths = array(' '=>250,'!'=>250,'"'=>408,'#'=>668,'$'=>490,'%'=>875,'&'=>698,'\''=>250,
	'('=>240,')'=>240,'*'=>417,'+'=>667,','=>250,'-'=>313,'.'=>250,'/'=>520,'0'=>500,'1'=>500,
	'2'=>500,'3'=>500,'4'=>500,'5'=>500,'6'=>500,'7'=>500,'8'=>500,'9'=>500,':'=>250,';'=>250,
	'<'=>667,'='=>667,'>'=>667,'?'=>396,'@'=>921,'A'=>677,'B'=>615,'C'=>719,'D'=>760,'E'=>625,
	'F'=>552,'G'=>771,'H'=>802,'I'=>354,'J'=>354,'K'=>781,'L'=>604,'M'=>927,'N'=>750,'O'=>823,
	'P'=>563,'Q'=>823,'R'=>729,'S'=>542,'T'=>698,'U'=>771,'V'=>729,'W'=>948,'X'=>771,'Y'=>677,
	'Z'=>635,'['=>344,'\\'=>520,']'=>344,'^'=>469,'_'=>500,'`'=>250,'a'=>469,'b'=>521,'c'=>427,
	'd'=>521,'e'=>438,'f'=>271,'g'=>469,'h'=>531,'i'=>250,'j'=>250,'k'=>458,'l'=>240,'m'=>802,
	'n'=>531,'o'=>500,'p'=>521,'q'=>521,'r'=>365,'s'=>333,'t'=>292,'u'=>521,'v'=>458,'w'=>677,
	'x'=>479,'y'=>458,'z'=>427,'{'=>480,'|'=>496,'}'=>480,'~'=>667);

	private $GB_widths = array(' '=>207,'!'=>270,'"'=>342,'#'=>467,'$'=>462,'%'=>797,'&'=>710,'\''=>239,
	'('=>374,')'=>374,'*'=>423,'+'=>605,','=>238,'-'=>375,'.'=>238,'/'=>334,'0'=>462,'1'=>462,
	'2'=>462,'3'=>462,'4'=>462,'5'=>462,'6'=>462,'7'=>462,'8'=>462,'9'=>462,':'=>238,';'=>238,
	'<'=>605,'='=>605,'>'=>605,'?'=>344,'@'=>748,'A'=>684,'B'=>560,'C'=>695,'D'=>739,'E'=>563,
	'F'=>511,'G'=>729,'H'=>793,'I'=>318,'J'=>312,'K'=>666,'L'=>526,'M'=>896,'N'=>758,'O'=>772,
	'P'=>544,'Q'=>772,'R'=>628,'S'=>465,'T'=>607,'U'=>753,'V'=>711,'W'=>972,'X'=>647,'Y'=>620,
	'Z'=>607,'['=>374,'\\'=>333,']'=>374,'^'=>606,'_'=>500,'`'=>239,'a'=>417,'b'=>503,'c'=>427,
	'd'=>529,'e'=>415,'f'=>264,'g'=>444,'h'=>518,'i'=>241,'j'=>230,'k'=>495,'l'=>228,'m'=>793,
	'n'=>527,'o'=>524,'p'=>524,'q'=>504,'r'=>338,'s'=>336,'t'=>277,'u'=>517,'v'=>450,'w'=>652,
	'x'=>466,'y'=>452,'z'=>407,'{'=>370,'|'=>258,'}'=>370,'~'=>605);
function AddCIDFont($family, $style, $name, $cw, $CMap, $registry)
{
	$fontkey = strtolower($family).strtoupper($style);
	if(isset($this->fonts[$fontkey]))
		$this->Error("Font already added: $family $style");
	$i = count($this->fonts)+1;
	$name = str_replace(' ','',$name);
	$this->fonts[$fontkey] = array('i'=>$i, 'type'=>'Type0', 'name'=>$name, 'up'=>-130, 'ut'=>40, 'cw'=>$cw, 'CMap'=>$CMap, 'registry'=>$registry);
}

function AddCIDFonts($family, $name, $cw, $CMap, $registry)
{
	$this->AddCIDFont($family,'',$name,$cw,$CMap,$registry);
	$this->AddCIDFont($family,'B',$name.',Bold',$cw,$CMap,$registry);
	$this->AddCIDFont($family,'I',$name.',Italic',$cw,$CMap,$registry);
	$this->AddCIDFont($family,'BI',$name.',BoldItalic',$cw,$CMap,$registry);
}

function AddBig5Font($family='Big5', $name='MSungStd-Light-Acro')
{
	// Add Big5 font with proportional Latin
	$cw = $this->Big5_widths;
	$CMap = 'ETenms-B5-H';
	$registry = array('ordering'=>'CNS1', 'supplement'=>0);
	$this->AddCIDFonts($family,$name,$cw,$CMap,$registry);
}

function AddBig5hwFont($family='Big5-hw', $name='MSungStd-Light-Acro')
{
	// Add Big5 font with half-witdh Latin
	for($i=32;$i<=126;$i++)
		$cw[chr($i)] = 500;
	$CMap = 'ETen-B5-H';
	$registry = array('ordering'=>'CNS1', 'supplement'=>0);
	$this->AddCIDFonts($family,$name,$cw,$CMap,$registry);
}

function AddGBFont($family='GB', $name='STSongStd-Light-Acro')
{
	// Add GB font with proportional Latin
	$cw = $this->GB_widths;
	$CMap = 'GBKp-EUC-H';
	$registry = array('ordering'=>'GB1', 'supplement'=>2);
	$this->AddCIDFonts($family,$name,$cw,$CMap,$registry);
}

function AddGBhwFont($family='GB-hw', $name='STSongStd-Light-Acro')
{
	// Add GB font with half-width Latin
	for($i=32;$i<=126;$i++)
		$cw[chr($i)] = 500;
	$CMap = 'GBK-EUC-H';
	$registry = array('ordering'=>'GB1', 'supplement'=>2);
	$this->AddCIDFonts($family,$name,$cw,$CMap,$registry);
}

function GetStringWidth($s)
{
	if($this->CurrentFont['type']=='Type0')
		return $this->GetMBStringWidth($s);
	else
		return parent::GetStringWidth($s);
}

function GetMBStringWidth($s)
{
	// Multi-byte version of GetStringWidth()
	$l = 0;
	$cw = &$this->CurrentFont['cw'];
	$nb = strlen($s);
	$i = 0;
	while($i<$nb)
	{
		$c = $s[$i];
		if(ord($c)<128)
		{
			$l += $cw[$c];
			$i++;
		}
		else
		{
			$l += 1000;
			$i += 2;
		}
	}
	return $l*$this->FontSize/1000;
}

function MultiCell($w, $h, $txt, $border=0, $align='L', $fill=0)
{
	if($this->CurrentFont['type']=='Type0')
		$this->MBMultiCell($w,$h,$txt,$border,$align,$fill);
	else
		parent::MultiCell($w,$h,$txt,$border,$align,$fill);
}

function MBMultiCell($w, $h, $txt, $border=0, $align='L', $fill=0)
{
	// Multi-byte version of MultiCell()
	$cw = &$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
		{
			$b2 = '';
			if(is_int(strpos($border,'L')))
				$b2 .= 'L';
			if(is_int(strpos($border,'R')))
				$b2 .= 'R';
			$b = is_int(strpos($border,'T')) ? $b2.'T' : $b2;
		}
	}
	$sep = -1;
	$i = 0;
	$j = 0;
	$l = 0;
	$nl = 1;
	while($i<$nb)
	{
		// Get next character
		$c = $s[$i];
		// Check if ASCII or MB
		$ascii = (ord($c)<128);
		if($c=="\n")
		{
			// Explicit line break
			$this->Cell($w,$h,substr($s,$j,$i-$j),$b,2,$align,$fill);
			$i++;
			$sep = -1;
			$j = $i;
			$l = 0;
			$nl++;
			if($border && $nl==2)
				$b = $b2;
			continue;
		}
		if(!$ascii)
		{
			$sep = $i;
			$ls = $l;
		}
		elseif($c==' ')
		{
			$sep = $i;
			$ls = $l;
		}
		$l += $ascii ? $cw[$c] : 1000;
		if($l>$wmax)
		{
			// Automatic line break
			if($sep==-1 || $i==$j)
			{
				if($i==$j)
					$i += $ascii ? 1 : 2;
				$this->Cell($w,$h,substr($s,$j,$i-$j),$b,2,$align,$fill);
			}
			else
			{
				$this->Cell($w,$h,substr($s,$j,$sep-$j),$b,2,$align,$fill);
				$i = ($s[$sep]==' ') ? $sep+1 : $sep;
			}
			$sep = -1;
			$j = $i;
			$l = 0;
			$nl++;
			if($border && $nl==2)
				$b = $b2;
		}
		else
			$i += $ascii ? 1 : 2;
	}
	// Last chunk
	if($border && is_int(strpos($border,'B')))
		$b .= 'B';
	$this->Cell($w,$h,substr($s,$j,$i-$j),$b,2,$align,$fill);
	$this->x = $this->lMargin;
}

function Write($h, $txt, $link='')
{
	if($this->CurrentFont['type']=='Type0')
		$this->MBWrite($h,$txt,$link);
	else
		parent::Write($h,$txt,$link);
}

function MBWrite($h, $txt, $link)
{
	// Multi-byte version of Write()
	$cw = &$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];
		// Check if ASCII or MB
		$ascii = (ord($c)<128);
		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;
			}
			$nl++;
			continue;
		}
		if(!$ascii || $c==' ')
			$sep = $i;
		$l += $ascii ? $cw[$c] : 1000;
		if($l>$wmax)
		{
			// Automatic line break
			if($sep==-1 || $i==$j)
			{
				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 += $ascii ? 1 : 2;
				$this->Cell($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);
				$i = ($s[$sep]==' ') ? $sep+1 : $sep;
			}
			$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 += $ascii ? 1 : 2;
	}
	// Last chunk
	if($i!=$j)
		$this->Cell($l/1000*$this->FontSize,$h,substr($s,$j,$i-$j),0,0,'',0,$link);
}

function _putType0($font)
{
	// Type0
	$this->_newobj();
	$this->_out('<</Type /Font');
	$this->_out('/Subtype /Type0');
	$this->_out('/BaseFont /'.$font['name'].'-'.$font['CMap']);
	$this->_out('/Encoding /'.$font['CMap']);
	$this->_out('/DescendantFonts ['.($this->n+1).' 0 R]');
	$this->_out('>>');
	$this->_out('endobj');
	// CIDFont
	$this->_newobj();
	$this->_out('<</Type /Font');
	$this->_out('/Subtype /CIDFontType0');
	$this->_out('/BaseFont /'.$font['name']);
	$this->_out('/CIDSystemInfo <</Registry '.$this->_textstring('Adobe').' /Ordering '.$this->_textstring($font['registry']['ordering']).' /Supplement '.$font['registry']['supplement'].'>>');
	$this->_out('/FontDescriptor '.($this->n+1).' 0 R');
	if($font['CMap']=='ETen-B5-H')
		$W = '13648 13742 500';
	elseif($font['CMap']=='GBK-EUC-H')
		$W = '814 907 500 7716 [500]';
	else
		$W = '1 ['.implode(' ',$font['cw']).']';
	$this->_out('/W ['.$W.']>>');
	$this->_out('endobj');
	// Font descriptor
	$this->_newobj();
	$this->_out('<</Type /FontDescriptor');
	$this->_out('/FontName /'.$font['name']);
	$this->_out('/Flags 6');
	$this->_out('/FontBBox [0 -200 1000 900]');
	$this->_out('/ItalicAngle 0');
	$this->_out('/Ascent 800');
	$this->_out('/Descent -200');
	$this->_out('/CapHeight 800');
	$this->_out('/StemV 50');
	$this->_out('>>');
	$this->_out('endobj');
}
}
?>