if (have_text[i] && !_text_panel[i]) {
_text_panel[i] = new TextPanel (this, static_cast<TextType>(i));
_notebook->InsertPage (off, _text_panel[i], _text_panel[i]->name());
if (have_text[i] && !_text_panel[i]) {
_text_panel[i] = new TextPanel (this, static_cast<TextType>(i));
_notebook->InsertPage (off, _text_panel[i], _text_panel[i]->name());