Provide notifiers for when signal data changes

[pulseview.git] / pv / data / analogsegment.hpp

diff --git a/pv/data/analogsegment.hpp b/pv/data/analogsegment.hpp
index 09ae2c0203dfa65d4c36c8a791754e9379e7804b..e6c312ade78d3b7157b43cc2f9584ba283381edb 100644 (file)
--- a/pv/data/analogsegment.hpp
+++ b/pv/data/analogsegment.hpp
@@ -25,6 +25,8 @@
 #include <utility>
 #include <vector>
 
+#include <QObject>
+
 namespace AnalogSegmentTest {
 struct Basic;
 }
@@ -32,14 +34,18 @@ struct Basic;
 namespace pv {
 namespace data {
 
+class Analog;
+
 typedef struct {
        uint64_t sample_index, chunk_num, chunk_offs;
        uint8_t* chunk;
        float* value;
 } SegmentAnalogDataIterator;
 
-class AnalogSegment : public Segment
+class AnalogSegment : public QObject, public Segment
 {
+       Q_OBJECT
+
 public:
        struct EnvelopeSample
        {
@@ -71,7 +77,7 @@ private:
        static const uint64_t EnvelopeDataUnit;
 
 public:
-       AnalogSegment(uint64_t samplerate);
+       AnalogSegment(Analog& owner, uint64_t samplerate);
 
        virtual ~AnalogSegment();
 
@@ -96,6 +102,8 @@ private:
        void append_payload_to_envelope_levels();
 
 private:
+       Analog& owner_;
+
        struct Envelope envelope_levels_[ScaleStepCount];
 
        float min_value_, max_value_;