return 48;
}
- double pixels_per_second () const {
+ boost::optional<double> pixels_per_second () const {
return _pixels_per_second;
}
ViewList _views;
boost::shared_ptr<TimeAxisView> _time_axis_view;
int _tracks;
- double _pixels_per_second;
+ boost::optional<double> _pixels_per_second;
bool _left_down;
wxPoint _down_point;
boost::shared_ptr<ContentView> _down_view;