<?php
  /**
   * DOMPDF - PHP5 HTML to PDF renderer
   *
   * File: $RCSfile: frame_factory.cls.php,v $
   * Created on: 2004-06-17
   *
   * Copyright (c) 2004 - Benj Carson <benjcarson@digitaljunkies.ca>
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2.1 of the License, or (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public License
   * along with this library in the file LICENSE.LGPL; if not, write to the
   * Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   * 02111-1307 USA
   *
   * Alternatively, you may distribute this software under the terms of the
   * PHP License, version 3.0 or later.  A copy of this license should have
   * been distributed with this file in the file LICENSE.PHP .  If this is not
   * the case, you can obtain a copy at http://www.php.net/license/3_0.txt.
   *
   * The latest version of DOMPDF might be available at:
   * http://www.dompdf.com/
   *
   * @link http://www.dompdf.com/
   * @copyright 2004 Benj Carson
   * @author Benj Carson <benjcarson@digitaljunkies.ca>
   * @package dompdf
  
   */
  
  /* $Id: frame_factory.cls.php 356 2011-01-28 08:56:10Z fabien.menager $ */
  
  /**
   * Contains frame decorating logic
   *
   * This class is responsible for assigning the correct {@link Frame_Decorator},
   * {@link Positioner}, and {@link Frame_Reflower} objects to {@link Frame}
   * objects.  This is determined primarily by the Frame's display type, but
   * also by the Frame's node's type (e.g. DomElement vs. #text)
   *
   * @access private
   * @package dompdf
   */
  class Frame_Factory {
  
    /**
     * Decorate the Frame
     * 
     * @param $root Frame The frame to decorate
     * @param $dompdf DOMPDF The dompdf instance
     */
    static function decorate_root(Frame $root, DOMPDF $dompdf) {
      $frame = new Page_Frame_Decorator($root, $dompdf);
      $frame->set_reflower( new Page_Frame_Reflower($frame) );
      $root->set_decorator($frame);
      return $frame;
    }
  
    /**
     * Decorate a Frame 
     * 
     * @param $root Frame The frame to decorate
     * @param $dompdf DOMPDF The dompdf instance
     * @return Frame_Decorator
     * FIXME: this is admittedly a little smelly...
     */ 
    static function decorate_frame(Frame $frame, DOMPDF $dompdf) {
      if ( is_null($dompdf) )
        throw new Exception("foo");
        
      $style = $frame->get_style();
      
      switch ($style->display) {
        
      case "block":
        $positioner = "Block";        
        $decorator = "Block";
        $reflower = "Block";
        break;
      
      case "inline-block":
        $positioner = "Inline";
        $decorator = "Block";
        $reflower = "Block";
        break;
  
      case "inline":
        $positioner = "Inline";
        if ( $frame->get_node()->nodeName === "#text" ) {
          $decorator = "Text";
          $reflower = "Text";
        } 
        else {
          if ( DOMPDF_ENABLE_CSS_FLOAT && $style->float !== "none" ) {
            $decorator = "Block";
            $reflower = "Block";
          }
          else {
            $decorator = "Inline";
            $reflower = "Inline";
          }
        }
        break;   
  
      case "table":
        $positioner = "Block";
        $decorator = "Table";
        $reflower = "Table";
        break;
        
      case "inline-table":
        $positioner = "Inline";
        $decorator = "Table";
        $reflower = "Table";
        break;
  
      case "table-row-group":
      case "table-header-group":
      case "table-footer-group":
        $positioner = "Null";
        $decorator = "Table_Row_Group";
        $reflower = "Table_Row_Group";
        break;
        
      case "table-row":
        $positioner = "Null";
        $decorator = "Table_Row";
        $reflower = "Table_Row";
        break;
  
      case "table-cell":
        $positioner = "Table_Cell";
        $decorator = "Table_Cell";
        $reflower = "Table_Cell";
        break;
          
      case "list-item":
        $positioner = "Block";
        $decorator  = "Block";
        $reflower   = "Block";
        break;
  
      case "-dompdf-list-bullet":
        if ( $style->list_style_position === "inside" )
          $positioner = "Inline";
        else        
          $positioner = "List_Bullet";
  
        if ( $style->list_style_image !== "none" )
          $decorator = "List_Bullet_Image";
        else
          $decorator = "List_Bullet";
        
        $reflower = "List_Bullet";
        break;
  
      case "-dompdf-image":
        $positioner = "Inline";
        $decorator = "Image";
        $reflower = "Image";
        break;
        
      case "-dompdf-br":
        $positioner = "Inline";
        $decorator = "Inline";
        $reflower = "Inline";
        break;
  
      default:
        // FIXME: should throw some sort of warning or something?
      case "none":
        $positioner = "Null";
        $decorator = "Null";
        $reflower = "Null";
        break;
      }
  
      $position = $style->position;
      
      if ( $position === "absolute" )
        $positioner = "Absolute";
  
      else if ( $position === "fixed" )
        $positioner = "Fixed";
    
      $positioner .= "_Positioner";
      $decorator .= "_Frame_Decorator";
      $reflower .= "_Frame_Reflower";
  
      $deco = new $decorator($frame, $dompdf);
      $deco->set_positioner( new $positioner($deco) );
      $reflow = new $reflower($deco);
      
      $deco->set_reflower( $reflow );
      
      return $deco;
    }
  }