X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=pv%2Fviews%2Ftrace%2Fruler.cpp;h=bebf529147da67f5bc4d591255bce144d5d1674b;hb=dca3cbee21f61422f34dc4b2b1d2cdc7eacbe2e6;hp=33746ed6f23814c888212b06c687afc071e3f7e2;hpb=9f094349d415a37ec30fa2aa2bb6c979c03d6bc1;p=pulseview.git

diff --git a/pv/views/trace/ruler.cpp b/pv/views/trace/ruler.cpp
index 33746ed6..bebf5291 100644
--- a/pv/views/trace/ruler.cpp
+++ b/pv/views/trace/ruler.cpp
@@ -194,10 +194,12 @@ void Ruler::item_hover(const shared_ptr<ViewItem> &item, QPoint pos)
 
 shared_ptr<TimeItem> Ruler::get_reference_item() const
 {
+	// Note: time() returns 0 if item returns no valid time
+
 	if (mouse_modifiers_ & Qt::ShiftModifier)
 		return nullptr;
 
-	if (hover_item_)
+	if (hover_item_ && (hover_item_->time() != 0))
 		return hover_item_;
 
 	shared_ptr<TimeItem> ref_item;
@@ -215,6 +217,9 @@ shared_ptr<TimeItem> Ruler::get_reference_item() const
 		}
 	}
 
+	if (ref_item && (ref_item->time() == 0))
+		ref_item.reset();
+
 	return ref_item;
 }