X-Git-Url: http://git.code-monkey.de/?a=blobdiff_plain;f=pv%2Fviews%2Ftrace%2Ftrace.hpp;h=407592de63bc7bb2221aadc77388424789533dfe;hb=561ba3ae052a93fe150a2161fcdc361144e68e4f;hp=88b4ea6b032a7d202896e4aa9264bb0ccb3aa7fe;hpb=1573bf16ba50d1c023ad3a9ce596f0ab6eaeacff;p=pulseview.git

diff --git a/pv/views/trace/trace.hpp b/pv/views/trace/trace.hpp
index 88b4ea6..407592d 100644
--- a/pv/views/trace/trace.hpp
+++ b/pv/views/trace/trace.hpp
@@ -49,6 +49,16 @@ class Popup;
 namespace views {
 namespace trace {
 
+/**
+ * The Trace class represents a @ref TraceTreeItem which occupies some vertical
+ * space on the canvas and spans across its entire width, essentially showing
+ * a time series of values, events, objects or similar. While easily confused
+ * with @ref Signal, the difference is that Trace may represent anything that
+ * can be drawn, not just numeric values. One example is a @ref DecodeTrace.
+ *
+ * For this reason, Trace is more generic and contains properties and helpers
+ * that benefit any kind of time series items.
+ */
 class Trace : public TraceTreeItem
 {
 	Q_OBJECT
@@ -134,6 +144,7 @@ private Q_SLOTS:
 
 protected:
 	shared_ptr<data::SignalBase> base_;
+	QPen axis_pen_;
 
 private:
 	pv::widgets::Popup *popup_;