X-Git-Url: http://git.code-monkey.de/?a=blobdiff_plain;f=pv%2Ftoolbars%2Fmainbar.cpp;h=9fcb42d123ec4a64af1da0d18cc1898d6a21d0e9;hb=119c5c232ef47e92ef6a5cc9f8b7c4c31dc2f387;hp=d78a153f160d0f14e45969572cfe671269ba07f0;hpb=220801e96260f1f2a7bc23282ddf69955be91799;p=pulseview.git

diff --git a/pv/toolbars/mainbar.cpp b/pv/toolbars/mainbar.cpp
index d78a153..9fcb42d 100644
--- a/pv/toolbars/mainbar.cpp
+++ b/pv/toolbars/mainbar.cpp
@@ -509,8 +509,8 @@ void MainBar::commit_sample_rate()
 	const shared_ptr<sigrok::Device> sr_dev = device->device();
 
 	sample_rate = sample_rate_.value();
-	if (sample_rate == 0)
-		return;
+	if (sample_rate < 0)
+		sample_rate_.set_value(0);
 
 	try {
 		sr_dev->config_set(ConfigKey::SAMPLERATE,
@@ -607,9 +607,9 @@ void MainBar::export_file(shared_ptr<OutputFormat> format, bool selection_only)
 		const pv::util::Timestamp& end_time = trace_view->cursors()->second()->time();
 
 		const uint64_t start_sample = (uint64_t)max(
-			(double)0, start_time.convert_to<double>() * samplerate);
+			0.0, start_time.convert_to<double>() * samplerate);
 		const uint64_t end_sample = (uint64_t)max(
-			(double)0, end_time.convert_to<double>() * samplerate);
+			0.0, end_time.convert_to<double>() * samplerate);
 
 		if ((start_sample == 0) && (end_sample == 0)) {
 			// Both cursors are negative and were clamped to 0