+void AnalogSignal::scale_handle_drag_release()
+{
+ scale_index_drag_offset_ = scale_index_;
+}
+
+void AnalogSignal::paint_back(QPainter &p, const ViewItemPaintParams &pp)
+{
+ if (channel_->enabled()) {
+ Trace::paint_back(p, pp);
+ paint_axis(p, pp, get_visual_y());
+ }
+}
+
+void AnalogSignal::paint_mid(QPainter &p, const ViewItemPaintParams &pp)
+{
+ assert(data_);
+ assert(owner_);
+
+ const int y = get_visual_y();
+
+ if (!channel_->enabled())
+ return;
+
+ const deque< shared_ptr<pv::data::AnalogSegment> > &segments =
+ data_->analog_segments();
+ if (segments.empty())