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sources/3rdparty/dompdf/include/inline_positioner.cls.php 1.94 KB
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  <?php
  /**
   * @package dompdf
   * @link    http://www.dompdf.com/
   * @author  Benj Carson <benjcarson@digitaljunkies.ca>
   * @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
   * @version $Id: inline_positioner.cls.php 448 2011-11-13 13:00:03Z fabien.menager $
   */
  
  /**
   * Positions inline frames
   *
   * @access private
   * @package dompdf
   */
  class Inline_Positioner extends Positioner {
  
    function __construct(Frame_Decorator $frame) { parent::__construct($frame); }
  
    //........................................................................
  
    function position() {
      /**
       * Find our nearest block level parent and access its lines property.
       * @var Block_Frame_Decorator
       */ 
      $p = $this->_frame->find_block_parent();
  
      // Debugging code:
  
  //     pre_r("
  Positioning:");
  //     pre_r("Me: " . $this->_frame->get_node()->nodeName . " (" . spl_object_hash($this->_frame->get_node()) . ")");
  //     pre_r("Parent: " . $p->get_node()->nodeName . " (" . spl_object_hash($p->get_node()) . ")");
  
      // End debugging
  
      if ( !$p )
        throw new DOMPDF_Exception("No block-level parent found.  Not good.");
  
      $f = $this->_frame;
      
      $cb = $f->get_containing_block();
      $line = $p->get_current_line_box();
  
      // Skip the page break if in a fixed position element
      $is_fixed = false;
      while($f = $f->get_parent()) {
        if($f->get_style()->position === "fixed") {
          $is_fixed = true;
          break;
        }
      }
  
      $f = $this->_frame;
  
      if ( !$is_fixed && $f->get_parent() &&
           $f->get_parent() instanceof Inline_Frame_Decorator &&
           $f->is_text_node() ) {
        
        $min_max = $f->get_reflower()->get_min_max_width();
        
        // If the frame doesn't fit in the current line, a line break occurs
        if ( $min_max["min"] > ($cb["w"] - $line->left - $line->w - $line->right) ) {
          $p->add_line();
        }
      }
      
      $f->set_position($cb["x"] + $line->w, $line->y);
  
    }
  }