X-Git-Url: http://git.code-monkey.de/?p=pulseview.git;a=blobdiff_plain;f=pv%2Ftoolbars%2Fmainbar.cpp;h=e6beb2b3ba704e198c8aff0076787a9d96798fe9;hp=16888624bc2f124030005fc481ae6838f5adbba5;hb=f4ab4b5c657e5613caba82feaa81a8a400e4f331;hpb=bc4b9ccfc78d9d0987525360fa6d93bed681951a

diff --git a/pv/toolbars/mainbar.cpp b/pv/toolbars/mainbar.cpp
index 1688862..e6beb2b 100644
--- a/pv/toolbars/mainbar.cpp
+++ b/pv/toolbars/mainbar.cpp
@@ -302,17 +302,21 @@ void MainBar::update_sample_rate_selector()
 
 	const shared_ptr<sigrok::Device> sr_dev = device->device();
 
-	try {
-		auto gvar = sr_dev->config_get(ConfigKey::EXTERNAL_CLOCK);
-		if (gvar.gobj()) {
-			bool value = Glib::VariantBase::cast_dynamic<Glib::Variant<bool>>(
-				gvar).get();
-			sample_rate_.allow_user_entered_values(value);
+	sample_rate_.allow_user_entered_values(false);
+	if (sr_dev->config_check(ConfigKey::EXTERNAL_CLOCK, Capability::GET)) {
+		try {
+			auto gvar = sr_dev->config_get(ConfigKey::EXTERNAL_CLOCK);
+			if (gvar.gobj()) {
+				bool value = Glib::VariantBase::cast_dynamic<Glib::Variant<bool>>(
+					gvar).get();
+				sample_rate_.allow_user_entered_values(value);
+			}
+		} catch (Error& error) {
+			// Do nothing
 		}
-	} catch (Error& error) {
-		// Do nothing
 	}
 
+
 	if (sr_dev->config_check(ConfigKey::SAMPLERATE, Capability::LIST)) {
 		try {
 			gvar_dict = sr_dev->config_list(ConfigKey::SAMPLERATE);
@@ -380,7 +384,7 @@ void MainBar::update_sample_rate_selector_value()
 		sample_rate_.set_value(samplerate);
 		updating_sample_rate_ = false;
 	} catch (Error& error) {
-		qDebug() << tr("Failed to get value of sample rate:") << error.what();
+		qDebug() << tr("Failed to get sample rate:") << error.what();
 	}
 }
 
@@ -505,8 +509,6 @@ void MainBar::commit_sample_rate()
 	const shared_ptr<sigrok::Device> sr_dev = device->device();
 
 	sample_rate = sample_rate_.value();
-	if (sample_rate == 0)
-		return;
 
 	try {
 		sr_dev->config_set(ConfigKey::SAMPLERATE,
@@ -603,9 +605,9 @@ 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