X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=blobdiff_plain;f=pv%2Fdata%2Fsignaldata.hpp;h=adede1c211c595eefb9e108d1929cad6d9b5af0b;hp=034703e19a2df88dec8ba57580fa9f6bfb1507aa;hb=ba5f21864c459a24f71ce3b0045805813c032134;hpb=6f925ba9d6faf1077b73c5a5808259576081716a;ds=sidebyside

diff --git a/pv/data/signaldata.hpp b/pv/data/signaldata.hpp
index 034703e1..adede1c2 100644
--- a/pv/data/signaldata.hpp
+++ b/pv/data/signaldata.hpp
@@ -24,6 +24,8 @@
 #include <memory>
 #include <vector>
 
+#include <QObject>
+
 using std::shared_ptr;
 using std::vector;
 
@@ -32,15 +34,19 @@ namespace data {
 
 class Segment;
 
-class SignalData
+class SignalData : public QObject
 {
+	Q_OBJECT
+
 public:
 	SignalData() = default;
-	virtual ~SignalData() {}
+	virtual ~SignalData() = default;
 
 public:
 	virtual vector< shared_ptr<Segment> > segments() const = 0;
 
+	virtual int get_segment_count() const = 0;
+
 	virtual void clear() = 0;
 
 	virtual uint64_t max_sample_count() const = 0;