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<?php
//=======================================================================
// File:        jpgraph_ttf.inc.php
// Description: Handling of TTF fonts
// Created:     2006-11-19
// Ver:         $Id: jpgraph_ttf.inc.php 1080 2008-09-19 16:06:46Z ljp $
//
// Copyright (c) Aditus Consulting. All rights reserved.
//========================================================================

// TTF Font families
DEFINE("FF_COURIER",10);
DEFINE("FF_VERDANA",11);
DEFINE("FF_TIMES",12);
DEFINE("FF_COMIC",14);
DEFINE("FF_ARIAL",15);
DEFINE("FF_GEORGIA",16);
DEFINE("FF_TREBUCHE",17);

// Gnome Vera font
// Available from http://www.gnome.org/fonts/
DEFINE("FF_VERA",19);
DEFINE("FF_VERAMONO",20);
DEFINE("FF_VERASERIF",21);

// Chinese font
DEFINE("FF_SIMSUN",30);
DEFINE("FF_CHINESE",31);
DEFINE("FF_BIG5",31);

// Japanese font
DEFINE("FF_MINCHO",40);
DEFINE("FF_PMINCHO",41);
DEFINE("FF_GOTHIC",42);
DEFINE("FF_PGOTHIC",43);

// Hebrew fonts
DEFINE("FF_DAVID",44);
DEFINE("FF_MIRIAM",45);
DEFINE("FF_AHRON",46);

// Dejavu-fonts http://sourceforge.net/projects/dejavu
DEFINE("FF_DV_SANSSERIF",47);
DEFINE("FF_DV_SERIF",48);
DEFINE("FF_DV_SANSSERIFMONO",49);
DEFINE("FF_DV_SERIFCOND",50);
DEFINE("FF_DV_SANSSERIFCOND",51);

// Extra fonts
// Download fonts from 
// http://www.webfontlist.com
// http://www.webpagepublicity.com/free-fonts.html

DEFINE("FF_SPEEDO",50);         // This font is also known as Bauer (Used for gauge fascia)
DEFINE("FF_DIGITAL",51);        // Digital readout font
DEFINE("FF_COMPUTER",52);       // The classic computer font
DEFINE("FF_CALCULATOR",53);     // Triad font

// Limits for TTF fonts
DEFINE('_FF_FIRST',10);
DEFINE('_FF_LAST',53);

// Older deprecated fonts 
DEFINE("FF_BOOK",91);    // Deprecated fonts from 1.9
DEFINE("FF_HANDWRT",92); // Deprecated fonts from 1.9

// TTF Font styles
DEFINE("FS_NORMAL",9001);
DEFINE("FS_BOLD",9002);
DEFINE("FS_ITALIC",9003);
DEFINE("FS_BOLDIT",9004);
DEFINE("FS_BOLDITALIC",9004);

//Definitions for internal font
DEFINE("FF_FONT0",1);
DEFINE("FF_FONT1",2);
DEFINE("FF_FONT2",4);


//===================================================
// CLASS LanguageConv
// Description: 
// Converts variouscharacter encoding into proper
// UTF-8 depending on how the library have been configured.
//===================================================
class LanguageConv {
    var $g2312 = null ;

    function Convert($aTxt,$aFF) {
        if( LANGUAGE_GREEK ) {
            if( GREEK_FROM_WINDOWS ) {
                $unistring = LanguageConv::gr_win2uni($aTxt); 
            } else  {
                $unistring = LanguageConv::gr_iso2uni($aTxt);
            }
            return $unistring;
        } elseif( LANGUAGE_CYRILLIC ) {
            if( CYRILLIC_FROM_WINDOWS && (!defined('CYRILLIC_LANGUAGE_CHARSET') || stristr(CYRILLIC_LANGUAGE_CHARSET, 'windows-1251')) ) {
                $aTxt = convert_cyr_string($aTxt, "w", "k"); 
            }
            if( !defined('CYRILLIC_LANGUAGE_CHARSET') || stristr(CYRILLIC_LANGUAGE_CHARSET, 'koi8-r') || stristr(CYRILLIC_LANGUAGE_CHARSET, 'windows-1251')) {
                $isostring = convert_cyr_string($aTxt, "k", "i");
                $unistring = LanguageConv::iso2uni($isostring);
            }
            else {
                $unistring = $aTxt;
            }
            return $unistring;
        }
        elseif( $aFF === FF_SIMSUN ) {
            // Do Chinese conversion
            if( $this->g2312 == null ) {
                include_once 'jpgraph_gb2312.php' ;
                $this->g2312 = new GB2312toUTF8();
            }
            return $this->g2312->gb2utf8($aTxt);
        }
        elseif( $aFF === FF_CHINESE ) {
            if( !function_exists('iconv') ) {
                JpGraphError::RaiseL(25006);
//('Usage of FF_CHINESE (FF_BIG5) font family requires that your PHP setup has the iconv() function. By default this is not compiled into PHP (needs the "--width-iconv" when configured).');
            }
            return iconv('BIG5','UTF-8',$aTxt);
        }
        elseif( ASSUME_EUCJP_ENCODING &&
                ($aFF == FF_MINCHO || $aFF == FF_GOTHIC || $aFF == FF_PMINCHO || $aFF == FF_PGOTHIC) ) {
            if( !function_exists('mb_convert_encoding') ) {
                JpGraphError::RaiseL(25127);
            }
            return mb_convert_encoding($aTxt, 'UTF-8','EUC-JP');
        }
        elseif( $aFF == FF_DAVID || $aFF == FF_MIRIAM || $aFF == FF_AHRON ) {
            return $this->heb_iso2uni($aTxt);
        }
        else
            return $aTxt;
    }

    // Translate iso encoding to unicode
    function iso2uni ($isoline){
        $uniline='';
        for ($i=0; $i < strlen($isoline); $i++){
            $thischar = substr($isoline,$i,1);
            $charcode = ord($thischar);
            $uniline .= ($charcode>175) ? "&#" . (1040+($charcode-176)). ";" : $thischar;
        }
        return $uniline;
    }

    // Translate greek iso encoding to unicode
    function gr_iso2uni ($isoline) {
        $uniline='';
        for ($i=0; $i < strlen($isoline); $i++) {
            $thischar=substr($isoline,$i,1);
            $charcode=ord($thischar);
            $uniline.=($charcode>179 && $charcode!=183 && $charcode!=187 && $charcode!=189) ? "&#" . (900+($charcode-180)). ";" : $thischar;
        }
        return $uniline;
    }

    // Translate greek win encoding to unicode
    function gr_win2uni ($winline) {
        $uniline='';
        $n = strlen($winline);
        for ($i=0; $i < $n; $i++) {
            $thischar=substr($winline,$i,1);
            $charcode=ord($thischar);
            if ($charcode==161 || $charcode==162) {
                $uniline.="&#" . (740+$charcode). ";";
            }
            else {
                $uniline.=(($charcode>183 && $charcode!=187 && $charcode!=189) || $charcode==180) ? "&#" . (900+($charcode-180)). ";" : $thischar;
            }
        }
        return $uniline;
    }

    function heb_iso2uni($isoline) {
        $isoline = hebrev($isoline);
        $o = '';

        $n = strlen($isoline);
        for($i=0; $i < $n; $i++) {
            $c=ord( substr($isoline,$i,1) );
            $o .= ($c > 223) && ($c < 251) ? '&#'.(1264+$c).';' : chr($c);
        }
        return utf8_encode($o);
    }
}

//=================================================================
// CLASS TTF
// Description: Handle TTF font names and loading of font files
//=================================================================
class TTF {
    var $font_files,$style_names;

//---------------
// CONSTRUCTOR
    function TTF() {
        
        // String names for font styles to be used in error messages
        $this->style_names=array(FS_NORMAL      =>'normal',
                                 FS_BOLD        =>'bold',
                                 FS_ITALIC      =>'italic',
                                 FS_BOLDITALIC  =>'bolditalic');

        // File names for available fonts
        $this->font_files=array(
            FF_COURIER => array(FS_NORMAL       =>'cour.ttf', 
                                FS_BOLD         =>'courbd.ttf', 
                                FS_ITALIC       =>'couri.ttf', 
                                FS_BOLDITALIC   =>'courbi.ttf' ),
            FF_GEORGIA => array(FS_NORMAL       =>'georgia.ttf', 
                                FS_BOLD         =>'georgiab.ttf', 
                                FS_ITALIC       =>'georgiai.ttf', 
                                FS_BOLDITALIC   =>'' ),
            FF_TREBUCHE =>array(FS_NORMAL       =>'trebuc.ttf', 
                                FS_BOLD         =>'trebucbd.ttf',   
                                FS_ITALIC       =>'trebucit.ttf', 
                                FS_BOLDITALIC   =>'trebucbi.ttf' ),
            FF_VERDANA  => array(FS_NORMAL      =>'verdana.ttf', 
                                FS_BOLD         =>'verdanab.ttf',  
                                FS_ITALIC       =>'verdanai.ttf', 
                                FS_BOLDITALIC   =>'' ),
            FF_TIMES =>   array(FS_NORMAL       =>'times.ttf',   
                                FS_BOLD         =>'timesbd.ttf',   
                                FS_ITALIC       =>'timesi.ttf',   
                                FS_BOLDITALIC   =>'timesbi.ttf' ),
            FF_COMIC =>   array(FS_NORMAL       =>'comic.ttf',   
                                FS_BOLD         =>'comicbd.ttf',   
                                FS_ITALIC       =>'',         
                                FS_BOLDITALIC   =>'' ),
            FF_ARIAL =>   array(FS_NORMAL       =>'arial.ttf',   
                                FS_BOLD         =>'arialbd.ttf',   
                                FS_ITALIC       =>'ariali.ttf',   
                                FS_BOLDITALIC   =>'arialbi.ttf' ) ,
            FF_VERA =>    array(FS_NORMAL       =>'Vera.ttf',   
                                FS_BOLD         =>'VeraBd.ttf',   
                                FS_ITALIC       =>'VeraIt.ttf',   
                                FS_BOLDITALIC   =>'VeraBI.ttf' ),
            FF_VERAMONO => array(FS_NORMAL      =>'VeraMono.ttf', 
                                 FS_BOLD        =>'VeraMoBd.ttf', 
                                 FS_ITALIC      =>'VeraMoIt.ttf', 
                                 FS_BOLDITALIC  =>'VeraMoBI.ttf' ),
            FF_VERASERIF=>  array(FS_NORMAL     =>'VeraSe.ttf', 
                                  FS_BOLD       =>'VeraSeBd.ttf', 
                                  FS_ITALIC     =>'', 
                                  FS_BOLDITALIC =>'' ) ,

            /* Chinese fonts */
            FF_SIMSUN   =>  array(FS_NORMAL     =>'simsun.ttc',  
                                  FS_BOLD       =>'simhei.ttf',   
                                  FS_ITALIC     =>'',   
                                  FS_BOLDITALIC =>'' ),
            FF_CHINESE  =>  array(FS_NORMAL     =>CHINESE_TTF_FONT, 
                                  FS_BOLD       =>'', 
                                  FS_ITALIC     =>'', 
                                  FS_BOLDITALIC =>'' ),

            /* Japanese fonts */
            FF_MINCHO   =>  array(FS_NORMAL     =>MINCHO_TTF_FONT,  
                                  FS_BOLD       =>'',   
                                  FS_ITALIC     =>'',   
                                  FS_BOLDITALIC =>'' ),
            FF_PMINCHO  =>  array(FS_NORMAL     =>PMINCHO_TTF_FONT,  
                                  FS_BOLD       =>'',   
                                  FS_ITALIC     =>'',  
                                  FS_BOLDITALIC =>'' ),    
            FF_GOTHIC   =>   array(FS_NORMAL    =>GOTHIC_TTF_FONT,  
                                  FS_BOLD       =>'',   
                                  FS_ITALIC     =>'',   
                                  FS_BOLDITALIC =>'' ),    
            FF_PGOTHIC  =>  array(FS_NORMAL     =>PGOTHIC_TTF_FONT,  
                                  FS_BOLD       =>'',   
                                  FS_ITALIC     =>'',  
                                  FS_BOLDITALIC =>'' ),    
            FF_MINCHO   =>  array(FS_NORMAL     =>PMINCHO_TTF_FONT,  
                                  FS_BOLD       =>'',   
                                  FS_ITALIC     =>'',  
                                  FS_BOLDITALIC =>'' ),   

            /* Hebrew fonts */
            FF_DAVID    =>  array(FS_NORMAL     =>'DAVIDNEW.TTF',  
                                  FS_BOLD       =>'',   
                                  FS_ITALIC     =>'',  
                                  FS_BOLDITALIC =>'' ),   

            FF_MIRIAM   =>  array(FS_NORMAL     =>'MRIAMY.TTF',  
                                  FS_BOLD       =>'',   
                                  FS_ITALIC     =>'',  
                                  FS_BOLDITALIC =>'' ),   

            FF_AHRON    =>  array(FS_NORMAL     =>'ahronbd.ttf',  
                                  FS_BOLD       =>'',   
                                  FS_ITALIC     =>'',  
                                  FS_BOLDITALIC =>'' ),   

            /* Dejavu fonts */
            FF_DV_SANSSERIF => array(FS_NORMAL  =>'DejaVuSans.ttf',  
                                  FS_BOLD       =>'DejaVuSans-Bold.ttf',   
                                  FS_ITALIC     =>'DejaVuSans-Oblique.ttf',   
                                  FS_BOLDITALIC =>'DejaVuSans-BoldOblique.ttf' ),  

            FF_DV_SANSSERIFMONO => array(FS_NORMAL      =>'DejaVuSansMono.ttf',  
                                  FS_BOLD       =>'DejaVuSansMono-Bold.ttf',   
                                  FS_ITALIC     =>'DejaVuSansMono-Oblique.ttf',   
                                  FS_BOLDITALIC =>'DejaVuSansMono-BoldOblique.ttf' ),  

            FF_DV_SANSSERIFCOND => array(FS_NORMAL      =>'DejaVuSansCondensed.ttf',  
                                  FS_BOLD       =>'DejaVuSansCondensed-Bold.ttf',   
                                  FS_ITALIC     =>'DejaVuSansCondensed-Oblique.ttf',   
                                  FS_BOLDITALIC =>'DejaVuSansCondensed-BoldOblique.ttf' ),  

            FF_DV_SERIF => array(FS_NORMAL      =>'DejaVuSerif.ttf',  
                                  FS_BOLD       =>'DejaVuSerif-Bold.ttf',   
                                  FS_ITALIC     =>'DejaVuSerif-Italic.ttf',   
                                  FS_BOLDITALIC =>'DejaVuSerif-BoldItalic.ttf' ),  

            FF_DV_SERIFCOND => array(FS_NORMAL  =>'DejaVuSerifCondensed.ttf',  
                                  FS_BOLD       =>'DejaVuSerifCondensed-Bold.ttf',   
                                  FS_ITALIC     =>'DejaVuSerifCondensed-Italic.ttf',   
                                  FS_BOLDITALIC =>'DejaVuSerifCondensed-BoldItalic.ttf' ),  

            /* Misc fonts */
            FF_DIGITAL =>   array(FS_NORMAL     =>'DIGIRU__.TTF',  
                                  FS_BOLD       =>'Digirtu_.ttf', 
                                  FS_ITALIC     =>'Digir___.ttf', 
                                  FS_BOLDITALIC =>'DIGIRT__.TTF' ),   
            FF_SPEEDO =>    array(FS_NORMAL     =>'Speedo.ttf',  
                                  FS_BOLD       =>'',   
                                  FS_ITALIC     =>'',   
                                  FS_BOLDITALIC =>'' ),   
            FF_COMPUTER  =>  array(FS_NORMAL    =>'COMPUTER.TTF',  
                                  FS_BOLD       =>'',   
                                  FS_ITALIC     =>'',   
                                  FS_BOLDITALIC =>'' ),   
            FF_CALCULATOR =>array(FS_NORMAL     =>'Triad_xs.ttf',  
                                  FS_BOLD       =>'',   
                                  FS_ITALIC     =>'',   
                                  FS_BOLDITALIC =>'' ),   
            );
    }

//---------------
// PUBLIC METHODS       
    // Create the TTF file from the font specification
    function File($family,$style=FS_NORMAL) {
        
        if( $family == FF_HANDWRT || $family==FF_BOOK ) {
            JpGraphError::RaiseL(25045);//('Font families FF_HANDWRT and FF_BOOK are no longer available due to copyright problem with these fonts. Fonts can no longer be distributed with JpGraph. Please download fonts from http://corefonts.sourceforge.net/');
        }

        $fam = @$this->font_files[$family];
        if( !$fam ) {
            JpGraphError::RaiseL(25046,$family);//("Specified TTF font family (id=$family) is unknown or does not exist. Please note that TTF fonts are not distributed with JpGraph for copyright reasons. You can find the MS TTF WEB-fonts (arial, courier etc) for download at http://corefonts.sourceforge.net/");
        }
        $f = @$fam[$style];

        if( $f==='' )
            JpGraphError::RaiseL(25047,$this->style_names[$style],$this->font_files[$family][FS_NORMAL]);//('Style "'.$this->style_names[$style].'" is not available for font family '.$this->font_files[$family][FS_NORMAL].'.');
        if( !$f ) {
            JpGraphError::RaiseL(25048,$fam);//("Unknown font style specification [$fam].");
        }

        if ($family >= FF_MINCHO && $family <= FF_PGOTHIC) {
            $f = MBTTF_DIR.$f;
        } else {
            $f = TTF_DIR.$f;
        }

        if( file_exists($f) === false || is_readable($f) === false ) {
            JpGraphError::RaiseL(25049,$f);//("Font file \"$f\" is not readable or does not exist.");
        }
        return $f;
    }
} // Class

?>