X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=pv%2Fviews%2Ftrace%2Ftimeitem.cpp;h=f2eb5957c45ce2d92f914afb2f7ba636957be916;hb=9f094349d415a37ec30fa2aa2bb6c979c03d6bc1;hp=bd07e9b28c9383f1c4a48fbe3cd3bdd6b40ae6b4;hpb=1573bf16ba50d1c023ad3a9ce596f0ab6eaeacff;p=pulseview.git

diff --git a/pv/views/trace/timeitem.cpp b/pv/views/trace/timeitem.cpp
index bd07e9b2..f2eb5957 100644
--- a/pv/views/trace/timeitem.cpp
+++ b/pv/views/trace/timeitem.cpp
@@ -17,6 +17,7 @@
  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  */
 
+#include "signal.hpp"
 #include "timeitem.hpp"
 #include "view.hpp"
 
@@ -30,8 +31,18 @@ TimeItem::TimeItem(View &view) :
 
 void TimeItem::drag_by(const QPoint &delta)
 {
-	set_time(view_.offset() + (drag_point_.x() + delta.x() - 0.5) *
-		view_.scale());
+	int64_t sample_num = view_.get_nearest_level_change(drag_point_ + delta);
+
+	if (sample_num > -1)
+		set_time(sample_num / view_.get_signal_under_mouse_cursor()->base()->get_samplerate());
+	else
+		set_time(view_.offset() + (drag_point_.x() + delta.x() - 0.5) *
+			view_.scale());
+}
+
+const pv::util::Timestamp TimeItem::delta(const pv::util::Timestamp& other) const
+{
+	return other - time();
 }
 
 } // namespace trace