inline BufferView *bufferView() const { return qobject_cast<BufferView *>(widget()); }
inline bool isActive() const { return _active; }
void setWidget(QWidget *newWidget);
inline BufferView *bufferView() const { return qobject_cast<BufferView *>(widget()); }
inline bool isActive() const { return _active; }
void setWidget(QWidget *newWidget);