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File: fpdf/makefont/makefont.php

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  Classes of Gianluca Zanferrari  >  Sign on display  >  fpdf/makefont/makefont.php  >  Download  
File: fpdf/makefont/makefont.php
Role: Auxiliary script
Content type: text/plain
Description: Auxiliary script
Class: Sign on display
Insert a captured person signature in a PDF file
Author: By
Last change:
Date: 2 years ago
Size: 9,504 bytes
 

Contents

Class file image Download
<?php
/*******************************************************************************
* Utility to generate font definition files                                    *
*                                                                              *
* Version: 1.2                                                                 *
* Date:    2011-06-18                                                          *
* Author:  Olivier PLATHEY                                                     *
*******************************************************************************/

require('ttfparser.php');

function 
Message($txt$severity='')
{
    if(
PHP_SAPI=='cli')
    {
        if(
$severity)
            echo 
"$severity: ";
        echo 
"$txt\n";
    }
    else
    {
        if(
$severity)
            echo 
"<b>$severity</b>: ";
        echo 
"$txt<br>";
    }
}

function 
Notice($txt)
{
    
Message($txt'Notice');
}

function 
Warning($txt)
{
    
Message($txt'Warning');
}

function 
Error($txt)
{
    
Message($txt'Error');
    exit;
}

function 
LoadMap($enc)
{
    
$file dirname(__FILE__).'/'.strtolower($enc).'.map';
    
$a file($file);
    if(empty(
$a))
        
Error('Encoding not found: '.$enc);
    
$map array_fill(0256, array('uv'=>-1'name'=>'.notdef'));
    foreach(
$a as $line)
    {
        
$e explode(' 'rtrim($line));
        
$c hexdec(substr($e[0],1));
        
$uv hexdec(substr($e[1],2));
        
$name $e[2];
        
$map[$c] = array('uv'=>$uv'name'=>$name);
    }
    return 
$map;
}

function 
GetInfoFromTrueType($file$embed$map)
{
    
// Return informations from a TrueType font
    
$ttf = new TTFParser();
    
$ttf->Parse($file);
    if(
$embed)
    {
        if(!
$ttf->Embeddable)
            
Error('Font license does not allow embedding');
        
$info['Data'] = file_get_contents($file);
        
$info['OriginalSize'] = filesize($file);
    }
    
$k 1000/$ttf->unitsPerEm;
    
$info['FontName'] = $ttf->postScriptName;
    
$info['Bold'] = $ttf->Bold;
    
$info['ItalicAngle'] = $ttf->italicAngle;
    
$info['IsFixedPitch'] = $ttf->isFixedPitch;
    
$info['Ascender'] = round($k*$ttf->typoAscender);
    
$info['Descender'] = round($k*$ttf->typoDescender);
    
$info['UnderlineThickness'] = round($k*$ttf->underlineThickness);
    
$info['UnderlinePosition'] = round($k*$ttf->underlinePosition);
    
$info['FontBBox'] = array(round($k*$ttf->xMin), round($k*$ttf->yMin), round($k*$ttf->xMax), round($k*$ttf->yMax));
    
$info['CapHeight'] = round($k*$ttf->capHeight);
    
$info['MissingWidth'] = round($k*$ttf->widths[0]);
    
$widths array_fill(0256$info['MissingWidth']);
    for(
$c=0;$c<=255;$c++)
    {
        if(
$map[$c]['name']!='.notdef')
        {
            
$uv $map[$c]['uv'];
            if(isset(
$ttf->chars[$uv]))
            {
                
$w $ttf->widths[$ttf->chars[$uv]];
                
$widths[$c] = round($k*$w);
            }
            else
                
Warning('Character '.$map[$c]['name'].' is missing');
        }
    }
    
$info['Widths'] = $widths;
    return 
$info;
}

function 
GetInfoFromType1($file$embed$map)
{
    
// Return informations from a Type1 font
    
if($embed)
    {
        
$f fopen($file'rb');
        if(!
$f)
            
Error('Can\'t open font file');
        
// Read first segment
        
$a unpack('Cmarker/Ctype/Vsize'fread($f,6));
        if(
$a['marker']!=128)
            
Error('Font file is not a valid binary Type1');
        
$size1 $a['size'];
        
$data fread($f$size1);
        
// Read second segment
        
$a unpack('Cmarker/Ctype/Vsize'fread($f,6));
        if(
$a['marker']!=128)
            
Error('Font file is not a valid binary Type1');
        
$size2 $a['size'];
        
$data .= fread($f$size2);
        
fclose($f);
        
$info['Data'] = $data;
        
$info['Size1'] = $size1;
        
$info['Size2'] = $size2;
    }

    
$afm substr($file0, -3).'afm';
    if(!
file_exists($afm))
        
Error('AFM font file not found: '.$afm);
    
$a file($afm);
    if(empty(
$a))
        
Error('AFM file empty or not readable');
    foreach(
$a as $line)
    {
        
$e explode(' 'rtrim($line));
        if(
count($e)<2)
            continue;
        
$entry $e[0];
        if(
$entry=='C')
        {
            
$w $e[4];
            
$name $e[7];
            
$cw[$name] = $w;
        }
        elseif(
$entry=='FontName')
            
$info['FontName'] = $e[1];
        elseif(
$entry=='Weight')
            
$info['Weight'] = $e[1];
        elseif(
$entry=='ItalicAngle')
            
$info['ItalicAngle'] = (int)$e[1];
        elseif(
$entry=='Ascender')
            
$info['Ascender'] = (int)$e[1];
        elseif(
$entry=='Descender')
            
$info['Descender'] = (int)$e[1];
        elseif(
$entry=='UnderlineThickness')
            
$info['UnderlineThickness'] = (int)$e[1];
        elseif(
$entry=='UnderlinePosition')
            
$info['UnderlinePosition'] = (int)$e[1];
        elseif(
$entry=='IsFixedPitch')
            
$info['IsFixedPitch'] = ($e[1]=='true');
        elseif(
$entry=='FontBBox')
            
$info['FontBBox'] = array((int)$e[1], (int)$e[2], (int)$e[3], (int)$e[4]);
        elseif(
$entry=='CapHeight')
            
$info['CapHeight'] = (int)$e[1];
        elseif(
$entry=='StdVW')
            
$info['StdVW'] = (int)$e[1];
    }

    if(!isset(
$info['FontName']))
        
Error('FontName missing in AFM file');
    
$info['Bold'] = isset($info['Weight']) && preg_match('/bold|black/i'$info['Weight']);
    if(isset(
$cw['.notdef']))
        
$info['MissingWidth'] = $cw['.notdef'];
    else
        
$info['MissingWidth'] = 0;
    
$widths array_fill(0256$info['MissingWidth']);
    for(
$c=0;$c<=255;$c++)
    {
        
$name $map[$c]['name'];
        if(
$name!='.notdef')
        {
            if(isset(
$cw[$name]))
                
$widths[$c] = $cw[$name];
            else
                
Warning('Character '.$name.' is missing');
        }
    }
    
$info['Widths'] = $widths;
    return 
$info;
}

function 
MakeFontDescriptor($info)
{
    
// Ascent
    
$fd "array('Ascent'=>".$info['Ascender'];
    
// Descent
    
$fd .= ",'Descent'=>".$info['Descender'];
    
// CapHeight
    
if(!empty($info['CapHeight']))
        
$fd .= ",'CapHeight'=>".$info['CapHeight'];
    else
        
$fd .= ",'CapHeight'=>".$info['Ascender'];
    
// Flags
    
$flags 0;
    if(
$info['IsFixedPitch'])
        
$flags += 1<<0;
    
$flags += 1<<5;
    if(
$info['ItalicAngle']!=0)
        
$flags += 1<<6;
    
$fd .= ",'Flags'=>".$flags;
    
// FontBBox
    
$fbb $info['FontBBox'];
    
$fd .= ",'FontBBox'=>'[".$fbb[0].' '.$fbb[1].' '.$fbb[2].' '.$fbb[3]."]'";
    
// ItalicAngle
    
$fd .= ",'ItalicAngle'=>".$info['ItalicAngle'];
    
// StemV
    
if(isset($info['StdVW']))
        
$stemv $info['StdVW'];
    elseif(
$info['Bold'])
        
$stemv 120;
    else
        
$stemv 70;
    
$fd .= ",'StemV'=>".$stemv;
    
// MissingWidth
    
$fd .= ",'MissingWidth'=>".$info['MissingWidth'].')';
    return 
$fd;
}

function 
MakeWidthArray($widths)
{
    
$s "array(\n\t";
    for(
$c=0;$c<=255;$c++)
    {
        if(
chr($c)=="'")
            
$s .= "'\\''";
        elseif(
chr($c)=="\\")
            
$s .= "'\\\\'";
        elseif(
$c>=32 && $c<=126)
            
$s .= "'".chr($c)."'";
        else
            
$s .= "chr($c)";
        
$s .= '=>'.$widths[$c];
        if(
$c<255)
            
$s .= ',';
        if((
$c+1)%22==0)
            
$s .= "\n\t";
    }
    
$s .= ')';
    return 
$s;
}

function 
MakeFontEncoding($map)
{
    
// Build differences from reference encoding
    
$ref LoadMap('cp1252');
    
$s '';
    
$last 0;
    for(
$c=32;$c<=255;$c++)
    {
        if(
$map[$c]['name']!=$ref[$c]['name'])
        {
            if(
$c!=$last+1)
                
$s .= $c.' ';
            
$last $c;
            
$s .= '/'.$map[$c]['name'].' ';
        }
    }
    return 
rtrim($s);
}

function 
SaveToFile($file$s$mode)
{
    
$f fopen($file'w'.$mode);
    if(!
$f)
        
Error('Can\'t write to file '.$file);
    
fwrite($f$sstrlen($s));
    
fclose($f);
}

function 
MakeDefinitionFile($file$type$enc$embed$map$info)
{
    
$s "<?php\n";
    
$s .= '$type = \''.$type."';\n";
    
$s .= '$name = \''.$info['FontName']."';\n";
    
$s .= '$desc = '.MakeFontDescriptor($info).";\n";
    
$s .= '$up = '.$info['UnderlinePosition'].";\n";
    
$s .= '$ut = '.$info['UnderlineThickness'].";\n";
    
$s .= '$cw = '.MakeWidthArray($info['Widths']).";\n";
    
$s .= '$enc = \''.$enc."';\n";
    
$diff MakeFontEncoding($map);
    if(
$diff)
        
$s .= '$diff = \''.$diff."';\n";
    if(
$embed)
    {
        
$s .= '$file = \''.$info['File']."';\n";
        if(
$type=='Type1')
        {
            
$s .= '$size1 = '.$info['Size1'].";\n";
            
$s .= '$size2 = '.$info['Size2'].";\n";
        }
        else
            
$s .= '$originalsize = '.$info['OriginalSize'].";\n";
    }
    
$s .= "?>\n";
    
SaveToFile($file$s't');
}

function 
MakeFont($fontfile$enc='cp1252'$embed=true)
{
    
// Generate a font definition file
    
if(get_magic_quotes_runtime())
        @
set_magic_quotes_runtime(0);
    
ini_set('auto_detect_line_endings''1');

    if(!
file_exists($fontfile))
        
Error('Font file not found: '.$fontfile);
    
$ext strtolower(substr($fontfile,-3));
    if(
$ext=='ttf' || $ext=='otf')
        
$type 'TrueType';
    elseif(
$ext=='pfb')
        
$type 'Type1';
    else
        
Error('Unrecognized font file extension: '.$ext);

    
$map LoadMap($enc);

    if(
$type=='TrueType')
        
$info GetInfoFromTrueType($fontfile$embed$map);
    else
        
$info GetInfoFromType1($fontfile$embed$map);

    
$basename substr(basename($fontfile), 0, -4);
    if(
$embed)
    {
        if(
function_exists('gzcompress'))
        {
            
$file $basename.'.z';
            
SaveToFile($filegzcompress($info['Data']), 'b');
            
$info['File'] = $file;
            
Message('Font file compressed: '.$file);
        }
        else
        {
            
$info['File'] = basename($fontfile);
            
Notice('Font file could not be compressed (zlib extension not available)');
        }
    }

    
MakeDefinitionFile($basename.'.php'$type$enc$embed$map$info);
    
Message('Font definition file generated: '.$basename.'.php');
}

if(
PHP_SAPI=='cli')
{
    
// Command-line interface
    
if($argc==1)
        die(
"Usage: php makefont.php fontfile [enc] [embed]\n");
    
$fontfile $argv[1];
    if(
$argc>=3)
        
$enc $argv[2];
    else
        
$enc 'cp1252';
    if(
$argc>=4)
        
$embed = ($argv[3]=='true' || $argv[3]=='1');
    else
        
$embed true;
    
MakeFont($fontfile$enc$embed);
}
?>