Initial commit

Lts/Services/AudioVideoManagement/active_exercises.h

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+/**
+  * @RDE_HEADER@
+  * ActiveExerciseWithRadioGroup
+  * $Id$
+  * $HeadURL$
+  * $Author$
+  * Created by Christian Fröbel, NLSE, 2018-02-16
+  */
+
+#pragma once
+
+#include <QObject>
+#include <vector>
+
+
+namespace AudioVideoManagement
+{
+
+class ExercisesHandler;
+class ExerciseContext;
+
+/**
+ * The ExercisesHandler emits a signal whenever an Exercise gets activated (or deactivated).
+ * (See there for what "activated" means).
+ *
+ * @see TvcHandler
+ * @see CnrHandler
+ * @see ExercisesHandler
+ * @author Christian Fröbel
+ */
+class ActiveExercises : public QObject
+{
+  Q_OBJECT
+
+public:
+  explicit ActiveExercises(ExercisesHandler *exercisesHandler);
+  ~ActiveExercises() override;
+
+  /** Return all active Contexts. */
+  const std::vector<ExerciseContext> &allContexts() const;
+  int count() const { return m_activeExercises.size(); }
+
+  bool   isActive(const ExerciseContext &context) const;
+
+signals:
+  /** Signalled when the Exercise is active. */
+  void contextActivated(const ExerciseContext &context);
+  void contextDeactivated(const ExerciseContext &context);
+
+private slots:
+  void onContextActivated(const ExerciseContext &context);
+  void onContextDeactivated(const ExerciseContext &context);
+
+private:
+  std::vector<ExerciseContext>   m_activeExercises;
+};
+
+} // namespace AudioVideoManagement