MainBar: Disable custom samplerate by default

Without this, the edit may be left in editable mode once the
external clock was enabled and disabled again.

diff --git a/pv/toolbars/mainbar.cpp b/pv/toolbars/mainbar.cpp
index b9eda07787c912ccdef99e7fa55d38fc3aa1d0a2..d78a153f160d0f14e45969572cfe671269ba07f0 100644 (file)
--- a/pv/toolbars/mainbar.cpp
+++ b/pv/toolbars/mainbar.cpp
@@ -302,6 +302,7 @@ void MainBar::update_sample_rate_selector()
 
        const shared_ptr<sigrok::Device> sr_dev = device->device();
 
+       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);