Channels: Let "Enable all changing" also check for sample data

[pulseview.git] / pv / data / signalbase.cpp

diff --git a/pv/data/signalbase.cpp b/pv/data/signalbase.cpp
index 2972d4043cf7a7bb3e6b48b49e9b190589b92884..5f6dc398f012d8507ca499f56b84887e04ec5a97 100644 (file)
--- a/pv/data/signalbase.cpp
+++ b/pv/data/signalbase.cpp
@@ -238,6 +238,33 @@ bool SignalBase::segment_is_complete(uint32_t segment_id) const
        return result;
 }
 
+bool SignalBase::has_samples() const
+{
+       bool result = false;
+
+       if (channel_type_ == AnalogChannel)
+       {
+               shared_ptr<Analog> data = dynamic_pointer_cast<Analog>(data_);
+               if (data) {
+                       auto segments = data->analog_segments();
+                       if ((segments.size() > 0) && (segments.front()->get_sample_count() > 0))
+                               result = true;
+               }
+       }
+
+       if (channel_type_ == LogicChannel)
+       {
+               shared_ptr<Logic> data = dynamic_pointer_cast<Logic>(data_);
+               if (data) {
+                       auto segments = data->logic_segments();
+                       if ((segments.size() > 0) && (segments.front()->get_sample_count() > 0))
+                               result = true;
+               }
+       }
+
+       return result;
+}
+
 SignalBase::ConversionType SignalBase::get_conversion_type() const
 {
        return conversion_type_;