Method add_layout

src/laybasic/laybasic/layLayoutViewBase.cc:3409–3520

}

unsigned int 
LayoutViewBase::add_layout (lay::LayoutHandle *layout_handle, bool add_cellview, bool initialize_layers)
{
  unsigned int cv_index = 0;

  try {

    enable_active_cellview_changed_event (false);

    stop_redraw ();

    bool set_max_hier = (m_full_hier_new_cell || has_max_hier ());

    lay::CellView cv;

    if (! add_cellview) {
      clear_cellviews ();
    }

    cv.set (layout_handle);

    cv->layout ().update ();

    //  select the cell with the largest area as the first top cell
    db::Layout::top_down_const_iterator top = cv->layout ().begin_top_down ();
    for (db::Layout::top_down_const_iterator t = cv->layout ().begin_top_down (); t != cv->layout ().end_top_cells (); ++t) {
      if (cv->layout ().cell (*t).bbox ().area () > cv->layout ().cell (*top).bbox ().area ()) {
        top = t;
      }
    }

    if (top != cv->layout ().end_top_down ()) {
      std::vector <db::cell_index_type> p;
      p.push_back (*top);
      cv.set_unspecific_path (p);
    }

    cv_index = cellviews ();
    set_layout (cv, cv_index);

    if (top != cv->layout ().end_top_cells ()) {
      std::vector <db::cell_index_type> p;
      p.push_back (*top);
      select_cell (p, cv_index);
    }

    //  even if there is no cell, select the cellview item
    //  to support applications with an active cellview (that is however invalid)
    set_active_cellview_index (cv_index);

    if (initialize_layers) {

      bool add_other_layers = m_add_other_layers;

      //  Use the "layer-properties-file" meta info from the handle to get the layer properties file.
      //  If no such file is present, use the default file or the technology specific file.
      std::string lyp_file = m_def_lyp_file;
      const db::Technology *tech = db::Technologies::instance ()->technology_by_name (layout_handle->tech_name ());