Perform autoranging for analog traces also when new data comes in

[pulseview.git] / pv / view / analogsignal.cpp

diff --git a/pv/view/analogsignal.cpp b/pv/view/analogsignal.cpp
index 07fb0ef89fa8ab59c2930c5be11972388377f0cd..d9ac2f60afcf853d1b225a18c139854ec94ed824 100644 (file)
--- a/pv/view/analogsignal.cpp
+++ b/pv/view/analogsignal.cpp
@@ -82,6 +82,12 @@ AnalogSignal::AnalogSignal(
        resolution_(0),
        autoranging_(1)
 {
+       pv::data::Analog* analog_data =
+               dynamic_cast<pv::data::Analog*>(data().get());
+
+       connect(analog_data, SIGNAL(samples_added(QObject*, uint64_t, uint64_t)),
+               this, SLOT(on_samples_added()));
+
        base_->set_colour(SignalColours[base_->index() % countof(SignalColours)]);
        update_scale();
 }
@@ -456,6 +462,17 @@ void AnalogSignal::populate_popup_form(QWidget *parent, QFormLayout *form)
        form->addRow(layout);
 }
 
+void AnalogSignal::on_samples_added()
+{
+       perform_autoranging();
+
+       if (owner_) {
+               // Call order is important, otherwise the lazy event handler won't work
+               owner_->extents_changed(false, true);
+               owner_->row_item_appearance_changed(false, true);
+       }
+}
+
 void AnalogSignal::on_pos_vdivs_changed(int vdivs)
 {
        pos_vdivs_ = vdivs;
@@ -500,8 +517,11 @@ void AnalogSignal::on_autoranging_changed(int state)
        if (autoranging_)
                perform_autoranging(true);
 
-       if (owner_)
+       if (owner_) {
+               // Call order is important, otherwise the lazy event handler won't work
+               owner_->extents_changed(false, true);
                owner_->row_item_appearance_changed(false, true);
+       }
 }
 
 } // namespace TraceView