Application: Use shared pointers

Fixes #1239

src/analyzer/analyzerbase.cpp

@@ -24,9 +24,9 @@
 
 #include "analyzerbase.h"
 
-#include <algorithm>
-#include <cmath>
 #include <cstdint>
+#include <cmath>
+#include <algorithm>
 
 #include <QWidget>
 #include <QVector>

src/analyzer/analyzerbase.h

@@ -38,6 +38,7 @@
 #include <QString>
 #include <QPainter>
 
+#include "core/shared_ptr.h"
 #include "analyzer/fht.h"
 #include "engine/enginebase.h"
 
@@ -54,7 +55,7 @@ class AnalyzerBase : public QWidget {
 
   int timeout() const { return timeout_; }
 
-  void set_engine(EngineBase *engine) { engine_ = engine; }
+  void set_engine(SharedPtr<EngineBase> engine) { engine_ = engine; }
 
   void ChangeTimeout(const int timeout);
 
@@ -82,7 +83,7 @@ class AnalyzerBase : public QWidget {
  protected:
   QBasicTimer timer_;
   FHT *fht_;
-  EngineBase *engine_;
+  SharedPtr<EngineBase> engine_;
   Scope lastscope_;
 
   bool new_frame_;

src/analyzer/analyzercontainer.cpp

@@ -43,6 +43,7 @@
 #include "sonogram.h"
 
 #include "core/logging.h"
+#include "core/shared_ptr.h"
 #include "engine/enginebase.h"
 
 using namespace std::chrono_literals;
@@ -125,7 +126,7 @@ void AnalyzerContainer::wheelEvent(QWheelEvent *e) {
   emit WheelEvent(e->angleDelta().y());
 }
 
-void AnalyzerContainer::SetEngine(EngineBase *engine) {
+void AnalyzerContainer::SetEngine(SharedPtr<EngineBase> engine) {
 
   if (current_analyzer_) current_analyzer_->set_engine(engine);
   engine_ = engine;

src/analyzer/analyzercontainer.h

@@ -30,6 +30,7 @@
 #include <QAction>
 #include <QActionGroup>
 
+#include "core/shared_ptr.h"
 #include "engine/enginebase.h"
 
 class QTimer;
@@ -44,7 +45,7 @@ class AnalyzerContainer : public QWidget {
  public:
   explicit AnalyzerContainer(QWidget *parent);
 
-  void SetEngine(EngineBase *engine);
+  void SetEngine(SharedPtr<EngineBase> engine);
   void SetActions(QAction *visualisation);
 
   static const char *kSettingsGroup;
@@ -93,7 +94,7 @@ class AnalyzerContainer : public QWidget {
   bool ignore_next_click_;
 
   AnalyzerBase *current_analyzer_;
-  EngineBase *engine_;
+  SharedPtr<EngineBase> engine_;
 };
 
 template<typename T>