Method onUndoInvoked

bt_editor/mainwindow.cpp:645–659

}

void MainWindow::onUndoInvoked()
{
    if ( _current_mode != GraphicMode::EDITOR ) return; //locked

    if( _undo_stack.size() > 0)
    {
        _redo_stack.push_back( std::move(_current_state) );
        _current_state = _undo_stack.back();
        _undo_stack.pop_back();

        loadSavedStateFromJson(_current_state);

        // qDebug() << "U: Undo size: " << _undo_stack.size() << " Redo size: " << _redo_stack.size();
    }
}

void MainWindow::onRedoInvoked()
{