void start() { _redoStack.clear(); if (_undoStack.size() == _undoLevels) { _undoStack.pop_front(); } startUndo(); trackersBegin(); }
void start(){ m_redo_stack.clear(); if ( m_undo_stack.size() == m_undo_levels ) { m_undo_stack.pop_front(); } startUndo(); trackersBegin(); }