- boost::signal<void()> signal_;
- /// The connection of the signal StatusChanged
- boost::signals::connection sc_;
+ signals2::signal<void()> signal_;
+ /// The connection of the signal statusChanged
+ signals2::scoped_connection connection_;
+
+ double displayPixelRatio() const
+ {
+ return params_.pixel_ratio;
+ }
+ void setDisplayPixelRatio(double scale)
+ {
+ params_.pixel_ratio = scale;
+ }