X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=pv%2Fwidgets%2Fsweeptimingwidget.cpp;h=cb543b1235796f3906a34638c052e7e5b891c1ee;hb=ff30bdbafa900626fdcdf5e282d6eb56e4d4b68a;hp=ee37d8d98d55d2b2cbe879c0399a864f5dec130f;hpb=b0ddc6bcc68bf8414021838515acd0decd3f0a77;p=pulseview.git

diff --git a/pv/widgets/sweeptimingwidget.cpp b/pv/widgets/sweeptimingwidget.cpp
index ee37d8d9..cb543b12 100644
--- a/pv/widgets/sweeptimingwidget.cpp
+++ b/pv/widgets/sweeptimingwidget.cpp
@@ -20,12 +20,15 @@
 
 #include "sweeptimingwidget.h"
 
+#include <cstdlib>
+
 #include <vector>
 
 #include <assert.h>
 
 #include <extdef.h>
 
+using std::abs;
 using std::vector;
 
 namespace pv {
@@ -165,9 +168,19 @@ void SweepTimingWidget::set_value(uint64_t value)
 {
 	_value.setValue(value);
 
-	for (int i = 0; i < _list.count(); i++)
-		if (value == _list.itemData(i).value<uint64_t>())
-			_list.setCurrentIndex(i);
+	int best_match = _list.count() - 1;
+	int64_t best_variance = INT64_MAX;
+
+	for (int i = 0; i < _list.count(); i++) {
+		const int64_t this_variance = abs(
+			(int64_t)value - _list.itemData(i).value<int64_t>());
+		if (this_variance < best_variance) {
+			best_variance = this_variance;
+			best_match = i;
+		}
+	}
+
+	_list.setCurrentIndex(best_match);
 }
 
 } // widgets