cellmap.cls.php

来自「国外很不错的一个开源OA系统Group-Office」· PHP 代码 · 共 696 行 · 第 1/2 页

    
    $collapse = $this->_table->get_style()->border_collapse == "collapse";
    
    // Recursively add the frames within tables, table-row-groups and table-rows
    if ( $display == "table-row" ||
         $display == "table" ||
         in_array($display, Table_Frame_Decorator::$ROW_GROUPS) ) {

      $start_row = $this->__row;
      foreach ( $frame->get_children() as $child ) 
        $this->add_frame( $child );

      if ( $display == "table-row" )
        $this->add_row();

      $num_rows = $this->__row - $start_row - 1;
      $key = $frame->get_id();

      // Row groups always span across the entire table
      $this->_frames[ $key ]["columns"] = range(0,max(0,$this->_num_cols-1));
      $this->_frames[ $key ]["rows"] = range($start_row, max(0, $this->__row - 1));
      $this->_frames[ $key ]["frame"] = $frame;

      if ( $display != "table-row" && $collapse ) {

        $bp = $style->get_border_properties();
        
        // Resolve the borders
        for ( $i = 0; $i < $num_rows+1; $i++) {
          $this->_resolve_border($start_row + $i, 0, "vertical", $bp["left"]);
          $this->_resolve_border($start_row + $i, $this->_num_cols, "vertical", $bp["right"]);
        }

        for ( $j = 0; $j < $this->_num_cols; $j++) {
          $this->_resolve_border($start_row, $j, "horizontal", $bp["top"]);
          $this->_resolve_border($this->__row, $j, "horizontal", $bp["bottom"]);
        }
      }
      
      
      return;
    }
      
    // Determine where this cell is going
    $colspan = $frame->get_node()->getAttribute("colspan");
    $rowspan = $frame->get_node()->getAttribute("rowspan");
    
    if ( !$colspan ) {
      $colspan = 1;
      $frame->get_node()->setAttribute("colspan",1);
    }

    if ( !$rowspan ) {
      $rowspan = 1;
      $frame->get_node()->setAttribute("rowspan",1);
    }
    $key = $frame->get_id();

    $bp = $style->get_border_properties();
    
    
    // Add the frame to the cellmap
    $max_left = $max_right = 0;
    
    // Rows:
    for ( $i = 0; $i < $rowspan; $i++ ) {
      $row = $this->__row + $i;

      $this->_frames[ $key ]["rows"][] = $row;

      for ( $j = 0; $j < $colspan; $j++) 
        $this->_cells[$row][$this->__col + $j] = $frame;

      if ( $collapse ) {
        // Resolve vertical borders
        $max_left = max($max_left, $this->_resolve_border($row, $this->__col, "vertical", $bp["left"]));
        $max_right = max($max_right, $this->_resolve_border($row, $this->__col + $colspan, "vertical", $bp["right"]));
      }
    }

    $max_top = $max_bottom = 0;
    
    // Columns:
    for ( $j = 0; $j < $colspan; $j++ ) {
      $col = $this->__col + $j;        
      $this->_frames[ $key ]["columns"][] = $col;

      if ( $collapse ) {
        // Resolve horizontal borders
        $max_top = max($max_top, $this->_resolve_border($this->__row, $col, "horizontal", $bp["top"]));
        $max_bottom = max($max_bottom, $this->_resolve_border($this->__row + $rowspan, $col, "horizontal", $bp["bottom"]));
      }
    }
    
    $this->_frames[ $key ]["frame"] = $frame;
    
    // Handle seperated border model
    if ( !$collapse ) {
      list($h, $v) = $this->_table->get_style()->border_spacing;

      // Border spacing is effectively a margin between cells
      $v = $style->length_in_pt($v) / 2;
      $h = $style->length_in_pt($h) / 2;
      $style->margin = "$v $h";

      // The additional 1/2 width gets added to the table proper
      
    } else {

      // Drop the frame's actual border
      $style->border_left_width = $max_left / 2;
      $style->border_right_width = $max_right / 2;
      $style->border_top_width = $max_top / 2;
      $style->border_bottom_width = $max_bottom / 2;
      $style->margin = "none";
    }

    // Resolve the frame's width
    list($frame_min, $frame_max) = $frame->get_min_max_width();    
    $width = $style->width;
    
    if ( is_percent($width) ) {
      $var = "percent";
      $val = (float)rtrim($width, "% ") / $colspan;
        
    } else if ( $width !== "auto" ) {
      $var = "absolute";
      $val = $style->length_in_pt($frame_min) / $colspan;
    }

    $min = 0;
    $max = 0;
    for ( $cs = 0; $cs < $colspan; $cs++ ) {

      // Resolve the frame's width(s) with other cells
      $col =& $this->get_column( $this->__col + $cs );

      // Note: $var is either 'percent' or 'absolute'.  We compare the
      // requested percentage or absolute values with the existing widths
      // and adjust accordingly.
      if ( isset($var) && $val > $col[$var] ) {
        $col[$var] = $val;
        $col["auto"] = false;
      }

      $min += $col["min-width"];
      $max += $col["max-width"];
    }
    
    
    if ( $frame_min > $min ) {
      // The frame needs more space.  Expand each sub-column
      $inc = ($frame_min - $min) / $colspan;
      for ($c = 0; $c < $colspan; $c++) {
        $col =& $this->get_column($this->__col + $c);
        $col["min-width"] += $inc;
      }        
    }

    if ( $frame_max > $max ) {
      $inc = ($frame_max - $max) / $colspan;
      for ($c = 0; $c < $colspan; $c++) {
        $col =& $this->get_column($this->__col + $c);
        $col["max-width"] += $inc;
      }
    }
    
    $this->__col += $colspan;
    if ( $this->__col > $this->_num_cols )
      $this->_num_cols = $this->__col;
    
  }

  //........................................................................
  
  function add_row() {

    $this->__row++;
    $this->_num_rows++;
    
    // Find the next available column
    $i = 0;
    while ( isset($this->_cells[$this->__row][$i]) )
      $i++;
    
    $this->__col = $i;
    
  }

  //........................................................................

  /**
   * Remove a row from the cellmap.
   *
   * @param Frame
   */
  function remove_row(Frame $row) {

    $key = $row->get_id();
    if ( !isset($this->_frames[$key]) )
      return;  // Presumably this row has alredy been removed
    
    $this->_row = $this->_num_rows--;

    $rows = $this->_frames[$key]["rows"];
    $columns = $this->_frames[$key]["columns"];

    // Remove all frames from this row
    foreach ( $rows as $r ) {
      foreach ( $columns as $c ) {
        $frame = $this->_cells[$r][$c];
        unset($this->_frames[ $frame->get_id() ]);
        unset($this->_cells[$r][$c]);
      }
    }

    unset($this->_frames[$key]);

  }

  /**
   * Remove a row group from the cellmap.
   *
   * @param Frame $group  The group to remove
   */
  function remove_row_group(Frame $group) {
    $key = $group->get_id();
    if ( !isset($this->_frames[$key]) )
      return;  // Presumably this row has alredy been removed

    $iter = $group->get_first_child();
    while ($iter) {
      $this->remove_row($iter);
      $iter = $iter->get_next_sibling();
    }
      
    unset($this->_frames[$key]);
  }
  
  /**
   * Update a row group after rows have been removed
   *
   * @param Frame $group    The group to update
   * @param Frame $last_row The last row in the row group
   */
  function update_row_group(Frame $group, Frame $last_row) {

    $g_key = $group->get_id();
    $r_key = $last_row->get_id();

    $r_rows = $this->_frames[$r_key]["rows"];
    $this->_frames[$g_key]["rows"] = range( $this->_frames[$g_key]["rows"][0], end($r_rows) );
    
  }
  
  //........................................................................
  
  function assign_x_positions() {
    // Pre-condition: widths must be resolved and assigned to columns and
    // column[0]["x"] must be set.
    
    $x = $this->_columns[0]["x"];
    foreach ( array_keys($this->_columns) as $j ) {
      $this->_columns[$j]["x"] = $x;
      $x += $this->_columns[$j]["used-width"];

    }

  }

  function assign_frame_heights() {
    // Pre-condition: widths and heights of each column & row must be
    // calcluated
    
    foreach ( $this->_frames as $arr ) {
      $frame = $arr["frame"];
      
      $h = 0;
      foreach( $arr["rows"] as $row ) {
        if ( !isset($this->_rows[$row]) )
          // The row has been removed because of a page split, so skip it.
          continue;
        $h += $this->_rows[$row]["height"];
      }
      
      if ( $frame instanceof Table_Cell_Frame_Decorator )
        $frame->set_cell_height($h);
      else 
        $frame->get_style()->height = $h;
    }

  }

  //........................................................................

  /**
   * Re-adjust frame height if the table height is larger than its content
   */
  function set_frame_heights($table_height, $content_height) {

   
    // Distribute the increased height proportionally amongst each row
    foreach ( $this->_frames as $arr ) {
      $frame = $arr["frame"];

      $h = 0;
      foreach ($arr["rows"] as $row ) {
        if ( !isset($this->_rows[$row]) )
          continue;

        $h += $this->_rows[$row]["height"];
      }
     
      $new_height = ($h / $content_height) * $table_height;
      
      if ( $frame instanceof Table_Cell_Frame_Decorator )
        $frame->set_cell_height($new_height);
      else
        $frame->get_style()->height = $new_height;
    }
    
  }
  
  //........................................................................

  // Used for debugging:
  function __toString() {
    $str = "";
    $str .= "Columns:<br/>";
    $str .= pre_r($this->_columns, true);
    $str .=  "Rows:<br/>";
    $str .= pre_r($this->_rows, true);
    
    $str .=  "Frames:<br/>";
    $arr = array();
    foreach ( $this->_frames as $key => $val )
      $arr[$key] = array("columns" => $val["columns"], "rows" => $val["rows"]);
                         
    $str .= pre_r($arr, true);

    if ( php_sapi_name() == "cli" )
      $str = strip_tags(str_replace(array("<br/>","<b>","</b>"),
                                    array("\n",chr(27)."[01;33m", chr(27)."[0m"),
                                    $str));
    return $str;
  }
}