virtual method for getting active slot count

platform/qt/qsacnuniverse.cpp

@@ -1,6 +1,5 @@
 #include "qsacnuniverse.h"
 
-
 /**
  * @brief QSacnUniverse::QSacnUniverse
  * @param parent
@@ -76,6 +75,16 @@ bool QSacnUniverse::isEditable() const
 }
 
 
+/**
+ * @brief QSacnUniverse::activeSlots
+ * @return
+ */
+uint16_t QSacnUniverse::activeSlots() const
+{
+  return universe_->activeSlots();
+}
+
+
 /**
  * @brief QSacnUniverse::setDescription
  * @param desc

platform/qt/qsacnuniverse.h

@@ -25,6 +25,7 @@ public:
     uint8_t slot(const u_int16_t slot) const;
 
     bool isEditable() const;
+    uint16_t activeSlots() const;
 
 public slots:
     void setDescription(std::string desc);

protocols/sacn/arbitratinguniverse.cpp

@@ -193,6 +193,15 @@ bool ArbitratingUniverse::isEditable() const {
 }
 
 
+uint16_t ArbitratingUniverse::activeSlots() const
+{
+  auto universe = dominant_();
+  if (!universe)
+    return 0;
+  return universe->activeSlots();
+}
+
+
 /**
  * @brief MergeProxyUniverse::slot
  * @param s

protocols/sacn/arbitratinguniverse.h

@@ -75,6 +75,7 @@ public:
     bool isSyncronized() const override;
     void synchronize(uint8_t = 0) override;
     bool isEditable() const override;
+    uint16_t activeSlots() const override;
 
     // DMX::Universe Overrides:
     uint8_t slot(const uint16_t) const override;

protocols/sacn/universe.cpp

@@ -175,7 +175,17 @@ bool Universe::isEditable() const
 }
 
 
-void Universe::setValue (const uint16_t address, const uint8_t value)
+/**
+ * @brief Universe::activeSlots
+ * @return
+ */
+uint16_t Universe::activeSlots() const
+{
+  return active_data_slots;
+}
+
+
+void Universe::setValue(const uint16_t address, const uint8_t value)
 {
   if (!isEditable())
     return;

protocols/sacn/universe.h

@@ -59,6 +59,7 @@ public:
   virtual void synchronize(uint8_t = 0);
 
   virtual bool isEditable() const;
+  virtual uint16_t activeSlots() const;
 
   // DMX::Universe overrides
   void setValue (const uint16_t address, const uint8_t value) override;
@@ -72,7 +73,11 @@ public:
    */
   ipAddress destination;
 
+
+
 protected:
+   void sACNsend() const;
+
    /**
     * @brief \cite sACN 3.7 Active Data Slots
     *
@@ -86,8 +91,6 @@ protected:
     */
     uint16_t active_data_slots;
 
-   void sACNsend() const;
-
 private:
   std::shared_ptr<DATA::data_header> provenance_;
   std::vector<uint8_t> * sync_data_ = nullptr;