Method reload_layout

src/laybasic/laybasic/layLayoutViewBase.cc:3231–3388

#endif

void
LayoutViewBase::reload_layout (unsigned int cv_index)
{
  stop ();
  cancel_esc ();

  //  save the current view state
  lay::DisplayState state;
  save_view (state);

  //  this is the cellview at the given index (use a copy since the original is overwritten)
  CellView cvorg = cellview (cv_index);

  //  obtain the original filename  
  std::string filename = cvorg->filename ();
  std::string technology = cvorg->tech_name ();
  std::string name = cvorg->name ();

  //  recreate hidden cells by doing a name referencing
  std::vector <std::string> hidden_cells;
  if (m_hidden_cells.size () > cv_index) {
    hidden_cells.reserve (m_hidden_cells [cv_index].size ());
    for (std::set <cell_index_type>::const_iterator ci = m_hidden_cells [cv_index].begin (); ci != m_hidden_cells [cv_index].end (); ++ci) {
      hidden_cells.push_back (std::string (cvorg->layout ().cell_name (*ci)));
    }
  }

  //  Set up a list of present layers
  std::set <db::LayerProperties, db::LPLogicalLessFunc> present_layers;
  for (LayerPropertiesConstIterator lay_iter = begin_layers (); ! lay_iter.at_end (); ++lay_iter) {
    if (! lay_iter->has_children ()) {
      present_layers.insert (lay_iter->source (true /*real*/).layer_props ());
    }
  }

  std::map <unsigned int, db::LayerProperties> org_layers;

  for (unsigned int i = 0; i < cvorg->layout ().layers (); ++i) {
    if (cvorg->layout ().is_valid_layer (i)) {
      const db::LayerProperties &p = cvorg->layout ().get_properties (i);
      if (! p.log_equal (db::LayerProperties ())) {
        org_layers.insert (std::make_pair (i, p));
      }
    }
  }

  lay::LayoutHandle *handle;

  //  reset the layout: create a dummy handle and install this in between
  //  this will clear the original layout if not further referenced.
  //  Since the dummy layout will act as a placeholder if something goes wrong
  //  when reading the file, it must have the layers created as well
  lay::CellView cv_empty;

  handle = new lay::LayoutHandle (new db::Layout (is_editable (), manager ()), filename);
  handle->set_tech_name (technology);
  cv_empty.set (handle);