X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=pv%2Fview%2Ftrace.hpp;h=b6b15198451e74bbfd014e5591f8d451da531dfc;hb=124be547578fe32c0a1af118f0108a88e613363b;hp=882c2d7089d7ea90f59c752a24e8b75a7d919705;hpb=489953884c0d7692fa20748314751e114ae54cf2;p=pulseview.git

diff --git a/pv/view/trace.hpp b/pv/view/trace.hpp
index 882c2d70..b6b15198 100644
--- a/pv/view/trace.hpp
+++ b/pv/view/trace.hpp
@@ -38,6 +38,10 @@ class QFormLayout;
 
 namespace pv {
 
+namespace data {
+class SignalBase;
+}
+
 namespace widgets {
 class Popup;
 }
@@ -60,6 +64,11 @@ protected:
 	Trace(shared_ptr<data::SignalBase> channel);
 
 public:
+	/**
+	 * Returns the underlying SignalBase instance.
+	 */
+	shared_ptr<data::SignalBase> base() const;
+
 	/**
 	 * Sets the name of the signal.
 	 */
@@ -95,7 +104,7 @@ protected:
 	 * @param p The QPainter to paint into.
 	 * @param pp The painting parameters object to paint with.
 	 */
-	virtual void paint_back(QPainter &p, const ViewItemPaintParams &pp);
+	virtual void paint_back(QPainter &p, ViewItemPaintParams &pp);
 
 	/**
 	 * Paints a zero axis across the viewport.
@@ -103,7 +112,7 @@ protected:
 	 * @param pp the painting parameters object to paint with.
 	 * @param y the y-offset of the axis.
 	 */
-	void paint_axis(QPainter &p, const ViewItemPaintParams &pp, int y);
+	void paint_axis(QPainter &p, ViewItemPaintParams &pp, int y);
 
 	void add_colour_option(QWidget *parent, QFormLayout *form);
 
@@ -125,7 +134,6 @@ private Q_SLOTS:
 
 protected:
 	shared_ptr<data::SignalBase> base_;
-	bool coloured_bg_state_;
 
 private:
 	pv::widgets::Popup *popup_;