Add a mechanism to make ViewItem classes immovable.

[pulseview.git] / pv / session.cpp

diff --git a/pv/session.cpp b/pv/session.cpp
index e6fb52fd7dd0d589342ed877ee573cbb572a4755..da9c0e9bb4af998abf3a3303eb525536245b3ba9 100644 (file)
--- a/pv/session.cpp
+++ b/pv/session.cpp
@@ -222,6 +222,25 @@ set< shared_ptr<data::SignalData> > Session::get_data() const
        return data;
 }
 
+double Session::get_samplerate() const
+{
+       double samplerate = 0.0;
+
+       for (const shared_ptr<pv::data::SignalData> d : get_data()) {
+               assert(d);
+               const vector< shared_ptr<pv::data::Segment> > segments =
+                       d->segments();
+               for (const shared_ptr<pv::data::Segment> &s : segments)
+                       samplerate = std::max(samplerate, s->samplerate());
+       }
+
+       // If there is no sample rate given we use samples as unit
+       if (samplerate == 0.0)
+               samplerate = 1.0;
+
+       return samplerate;
+}
+
 const unordered_set< shared_ptr<view::Signal> > Session::signals() const
 {
        shared_lock<shared_mutex> lock(signals_mutex_);
@@ -473,6 +492,27 @@ void Session::feed_in_meta(shared_ptr<Meta> meta)
        signals_changed();
 }
 
+void Session::feed_in_trigger()
+{
+       // The channel containing most samples should be most accurate
+       uint64_t sample_count = 0;
+
+       for (const shared_ptr<pv::data::SignalData> d : get_data()) {
+               assert(d);
+               uint64_t temp_count = 0;
+
+               const vector< shared_ptr<pv::data::Segment> > segments =
+                       d->segments();
+               for (const shared_ptr<pv::data::Segment> &s : segments)
+                       temp_count += s->get_sample_count();
+
+               if (temp_count > sample_count)
+                       sample_count = temp_count;
+       }
+
+       trigger_event(sample_count / get_samplerate());
+}
+
 void Session::feed_in_frame_begin()
 {
        if (cur_logic_segment_ || !cur_analog_segments_.empty())
@@ -597,6 +637,10 @@ void Session::data_feed_in(shared_ptr<sigrok::Device> device,
                feed_in_meta(dynamic_pointer_cast<Meta>(packet->payload()));
                break;
 
+       case SR_DF_TRIGGER:
+               feed_in_trigger();
+               break;
+
        case SR_DF_FRAME_BEGIN:
                feed_in_frame_begin();
                break;