lib/tcpdf/html2pdf.php

   1 <?php
   2 //HTML2PDF by Clément Lavoillotte
   3 //ac.lavoillotte@noos.fr
   4 //webmaster@streetpc.tk
   5 //http://www.streetpc.tk
   6
   7 define('TCPDF_FONTPATH','fonts/');
   8 require('tcpdf.php');
   9
  10 //function hex2dec
  11 //returns an associative array (keys: R,G,B) from
  12 //a hex html code (e.g. #3FE5AA)
  13 function hex2dec($couleur = "#000000"){
  14         $R = substr($couleur, 1, 2);
  15         $rouge = hexdec($R);
  16         $V = substr($couleur, 3, 2);
  17         $vert = hexdec($V);
  18         $B = substr($couleur, 5, 2);
  19         $bleu = hexdec($B);
  20         $tbl_couleur = array();
  21         $tbl_couleur['R']=$rouge;
  22         $tbl_couleur['G']=$vert;
  23         $tbl_couleur['B']=$bleu;
  24         return $tbl_couleur;
  25 }
  26
  27 //conversion pixel -> millimeter in 72 dpi
  28 function px2mm($px){
  29         return $px*25.4/72;
  30 }
  31
  32 function txtentities($html){
  33         $trans = get_html_translation_table(HTML_ENTITIES);
  34         $trans = array_flip($trans);
  35         return strtr($html, $trans);
  36 }
  37 ////////////////////////////////////
  38
  39 class PDF extends TCPDF_Protection
  40 {
  41 //variables of html parser
  42 var $B;
  43 var $I;
  44 var $U;
  45 var $HREF;
  46 var $fontList;
  47 var $issetfont;
  48 var $issetcolor;
  49
  50 function PDF($orientation='P',$unit='mm',$format='A4')
  51 {
  52         //Call parent constructor
  53         $this->TCPDF_Protection($orientation,$unit,$format);
  54         //Initialization
  55         $this->B=0;
  56         $this->I=0;
  57         $this->U=0;
  58         $this->HREF='';
  59         $this->fontlist=array("arial","times","courier","helvetica","symbol");
  60         $this->issetfont=false;
  61         $this->issetcolor=false;
  62 }
  63
  64 //////////////////////////////////////
  65 //html parser
  66
  67 function WriteHTML($html)
  68 {
  69         $html=strip_tags($html,"<b><u><i><a><img><p><br><strong><em><font><tr><blockquote>"); //remove all unsupported tags
  70         $html=str_replace("\n",' ',$html); //replace carriage returns by spaces
  71         $a=preg_split('/<(.*)>/U',$html,-1,PREG_SPLIT_DELIM_CAPTURE); //explodes the string
  72         foreach($a as $i=>$e)
  73         {
  74                 if($i%2==0)
  75                 {
  76                         //Text
  77                         if($this->HREF)
  78                                 $this->PutLink($this->HREF,$e);
  79                         else
  80                                 $this->Write(5,stripslashes(txtentities($e)));
  81                 }
  82                 else
  83                 {
  84                         //Tag
  85                         if($e{0}=='/')
  86                                 $this->CloseTag(strtoupper(substr($e,1)));
  87                         else
  88                         {
  89                                 //Extract attributes
  90                                 $a2=explode(' ',$e);
  91                                 $tag=strtoupper(array_shift($a2));
  92                                 $attr=array();
  93                                 foreach($a2 as $v)
  94                                         if(ereg('^([^=]*)=["\']?([^"\']*)["\']?$',$v,$a3))
  95                                                 $attr[strtoupper($a3[1])]=$a3[2];
  96                                 $this->OpenTag($tag,$attr);
  97                         }
  98                 }
  99         }
 100 }
 101
 102 function OpenTag($tag,$attr)
 103 {
 104         //Opening tag
 105         switch($tag){
 106                 case 'STRONG':
 107                         $this->SetStyle('B',true);
 108                         break;
 109                 case 'EM':
 110                         $this->SetStyle('I',true);
 111                         break;
 112                 case 'B':
 113                 case 'I':
 114                 case 'U':
 115                         $this->SetStyle($tag,true);
 116                         break;
 117                 case 'A':
 118                         $this->HREF=$attr['HREF'];
 119                         break;
 120                 case 'IMG':
 121                         if(isset($attr['SRC']) and (isset($attr['WIDTH']) or isset($attr['HEIGHT']))) {
 122                                 if(!isset($attr['WIDTH']))
 123                                         $attr['WIDTH'] = 0;
 124                                 if(!isset($attr['HEIGHT']))
 125                                         $attr['HEIGHT'] = 0;
 126                                 $this->Image($attr['SRC'], $this->GetX(), $this->GetY(), px2mm($attr['WIDTH']), px2mm($attr['HEIGHT']));
 127                         }
 128                         break;
 129                 case 'TR':
 130                 case 'BLOCKQUOTE':
 131                 case 'BR':
 132                         $this->Ln(5);
 133                         break;
 134                 case 'P':
 135                         $this->Ln(10);
 136                         break;
 137                 case 'FONT':
 138                         if (isset($attr['COLOR']) and $attr['COLOR']!='') {
 139                                 $coul=hex2dec($attr['COLOR']);
 140                                 $this->SetTextColor($coul['R'],$coul['G'],$coul['B']);
 141                                 $this->issetcolor=true;
 142                         }
 143                         if (isset($attr['FACE']) and in_array(strtolower($attr['FACE']), $this->fontlist)) {
 144                                 $this->SetFont(strtolower($attr['FACE']));
 145                                 $this->issetfont=true;
 146                         }
 147                         break;
 148         }
 149 }
 150
 151 function CloseTag($tag)
 152 {
 153         //Closing tag
 154         if($tag=='STRONG')
 155                 $tag='B';
 156         if($tag=='EM')
 157                 $tag='I';
 158         if($tag=='B' or $tag=='I' or $tag=='U')
 159                 $this->SetStyle($tag,false);
 160         if($tag=='A')
 161                 $this->HREF='';
 162         if($tag=='FONT'){
 163                 if ($this->issetcolor==true) {
 164                         $this->SetTextColor(0);
 165                 }
 166                 if ($this->issetfont) {
 167                         $this->SetFont('arial');
 168                         $this->issetfont=false;
 169                 }
 170         }
 171 }
 172
 173 function SetStyle($tag,$enable)
 174 {
 175         //Modify style and select corresponding font
 176         $this->$tag+=($enable ? 1 : -1);
 177         $style='';
 178         foreach(array('B','I','U') as $s)
 179                 if($this->$s>0)
 180                         $style.=$s;
 181         $this->SetFont('',$style);
 182 }
 183
 184 function PutLink($URL,$txt)
 185 {
 186         //Put a hyperlink
 187         $this->SetTextColor(0,0,255);
 188         $this->SetStyle('U',true);
 189         $this->Write(5,$txt,$URL);
 190         $this->SetStyle('U',false);
 191         $this->SetTextColor(0);
 192 }
 193
 194 }//end of class
 195 ?>