X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=pv%2Fdata%2Fsignaldata.hpp;h=adede1c211c595eefb9e108d1929cad6d9b5af0b;hb=00c518d66a61f28609b0eeddd0ce375d0002da94;hp=374a6f99efcfbb1f0e6ef2bd566ea7ae578e9b02;hpb=db1aabc15dc8680673b943c2dd0f38a83c32a1d9;p=pulseview.git

diff --git a/pv/data/signaldata.hpp b/pv/data/signaldata.hpp
index 374a6f99..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;
 
@@ -32,8 +34,10 @@ namespace data {
 
 class Segment;
 
-class SignalData
+class SignalData : public QObject
 {
+	Q_OBJECT
+
 public:
 	SignalData() = default;
 	virtual ~SignalData() = default;
@@ -41,6 +45,8 @@ public:
 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;