X-Git-Url: http://git.code-monkey.de/?a=blobdiff_plain;ds=sidebyside;f=pv%2Fviews%2Ftrace%2Fview.hpp;h=e66f7d0e8bd8a35f6d6bcb5aa4b0a830d83ea9ee;hb=fe68068b2f8f3ae69b762636e91de91e8996aa11;hp=7e1122a44aaabab919aa64783eff1d707ef6ee19;hpb=581724de334181fc5338f1efa87954264cf90520;p=pulseview.git

diff --git a/pv/views/trace/view.hpp b/pv/views/trace/view.hpp
index 7e1122a..e66f7d0 100644
--- a/pv/views/trace/view.hpp
+++ b/pv/views/trace/view.hpp
@@ -173,7 +173,7 @@ public:
 	 */
 	const pv::util::Timestamp& ruler_offset() const;
 
-	void set_zero_position(pv::util::Timestamp& position);
+	void set_zero_position(const pv::util::Timestamp& position);
 
 	void reset_zero_position();
 
@@ -507,6 +507,8 @@ private:
 	pv::util::Timestamp offset_;
 	/// The ruler version of the time offset in seconds.
 	pv::util::Timestamp ruler_offset_;
+	/// The offset of the zero point in seconds.
+	pv::util::Timestamp zero_offset_;
 
 	bool updating_scroll_;
 	bool settings_restored_;