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 4b356100e3642a966526e200db7497166a280355..adede1c211c595eefb9e108d1929cad6d9b5af0b 100644 (file)
--- a/pv/data/signaldata.hpp
+++ b/pv/data/signaldata.hpp
@@ -14,8 +14,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
  */
 
 #ifndef PULSEVIEW_PV_DATA_SIGNALDATA_HPP
@@ -25,19 +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;