DecodeSignal: Allow muxed logic data to be cached

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

diff --git a/pv/data/signaldata.hpp b/pv/data/signaldata.hpp
index f8ae97282cd8d244df0e9cf8ae9e163361873219..adede1c211c595eefb9e108d1929cad6d9b5af0b 100644 (file)
--- a/pv/data/signaldata.hpp
+++ b/pv/data/signaldata.hpp
@@ -24,19 +24,28 @@
 #include <memory>
 #include <vector>
 
+#include <QObject>
+
+using std::shared_ptr;
+using std::vector;
+
 namespace pv {
 namespace data {
 
 class Segment;
 
-class SignalData
+class SignalData : public QObject
 {
+       Q_OBJECT
+
 public:
        SignalData() = default;
-       virtual ~SignalData() {}
+       virtual ~SignalData() = default;
 
 public:
-       virtual std::vector< std::shared_ptr<Segment> > segments() const = 0;
+       virtual vector< shared_ptr<Segment> > segments() const = 0;
+
+       virtual int get_segment_count() const = 0;
 
        virtual void clear() = 0;