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sources/3rdparty/dompdf/lib/php-font-lib/classes/font_table_post.cls.php 3.37 KB
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  <?php
  /**
   * @package php-font-lib
   * @link    http://php-font-lib.googlecode.com/
   * @author  Fabien Ménager <fabien.menager@gmail.com>
   * @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
   * @version $Id: font_table_post.cls.php 40 2012-01-22 21:48:41Z fabien.menager $
   */
  
  /**
   * `post` font table.
   * 
   * @package php-font-lib
   */
  class Font_Table_post extends Font_Table {
    protected $def = array(
      "format"             => self::Fixed,
      "italicAngle"        => self::Fixed,
      "underlinePosition"  => self::FWord,
      "underlineThickness" => self::FWord,
      "isFixedPitch"       => self::uint32,
      "minMemType42"       => self::uint32,
      "maxMemType42"       => self::uint32,
      "minMemType1"        => self::uint32,
      "maxMemType1"        => self::uint32,
    );
    
    protected function _parse(){
      $font = $this->getFont();
      $data = $font->unpack($this->def);
      
      $names = array();
      
      switch($data["format"]) {
        case 1:
          $names = Font_TrueType::$macCharNames;
        break;
        
        case 2:
          $data["numberOfGlyphs"] = $font->readUInt16();
          
          $glyphNameIndex = array();
          for($i = 0; $i < $data["numberOfGlyphs"]; $i++) {
            $glyphNameIndex[] = $font->readUInt16();
          }
          
          $data["glyphNameIndex"] = $glyphNameIndex;
          
          $namesPascal = array();
          for($i = 0; $i < $data["numberOfGlyphs"]; $i++) {
            $len = $font->readUInt8();
            $namesPascal[] = $font->read($len);
          }
          
          foreach($glyphNameIndex as $g => $index) {
            if ($index < 258) {
              $names[$g] = Font_TrueType::$macCharNames[$index];
            }
            else {
              $names[$g] = $namesPascal[$index - 258];
            }
          }
          
        break;
        
        case 2.5:
          // TODO
        break;
        
        case 3:
          // nothing
        break;
        
        case 4:
          // TODO
        break;
      }
      
      $data["names"] = $names;
      
      $this->data = $data;
    }
    
    function _encode(){
      $font = $this->getFont();
      $data = $this->data;
      $data["format"] = 3;
      
      $length = $font->pack($this->def, $data);
      
      return $length;
      
      $subset = $font->getSubset();
      
      switch($data["format"]) {
        case 1:
          // nothing to do
        break;
        
        case 2:
          $old_names = $data["names"];
          
          $glyphNameIndex = range(0, count($subset));
          
          $names = array();
          foreach($subset as $gid) {
            $names[] = $data["names"][$data["glyphNameIndex"][$gid]];
          }
      
          $numberOfGlyphs = count($names);
          $length += $font->writeUInt16($numberOfGlyphs);
          
          foreach($glyphNameIndex as $gni) {
            $length += $font->writeUInt16($gni);
          }
          
          //$names = array_slice($names, 257);
          foreach($names as $name) {
            var_dump($name);
            $len = strlen($name);
            $length += $font->writeUInt8($len);
            $length += $font->write($name, $len);
          }
          
        break;
        
        case 2.5:
          // TODO
        break;
        
        case 3:
          // nothing
        break;
        
        case 4:
          // TODO
        break;
      }
      
      return $length;
    }
  }