Add explicit

src/moodbar/moodbarbuilder.h

@@ -24,7 +24,7 @@
 
 class MoodbarBuilder {
  public:
-  MoodbarBuilder();
+  explicit MoodbarBuilder();
 
   void Init(int bands, int rate_hz);
   void AddFrame(const double* magnitudes, int size);

src/moodbar/moodbarcontroller.h

@@ -31,7 +31,7 @@ class MoodbarController : public QObject {
   Q_OBJECT
 
  public:
-  MoodbarController(Application* app, QObject* parent = nullptr);
+  explicit MoodbarController(Application* app, QObject* parent = nullptr);
 
  signals:
   void CurrentMoodbarDataChanged(const QByteArray& data);

src/moodbar/moodbaritemdelegate.h

@@ -44,7 +44,7 @@ class MoodbarItemDelegate : public QItemDelegate {
   Q_OBJECT
 
  public:
-  MoodbarItemDelegate(Application* app, PlaylistView* view, QObject* parent = nullptr);
+  explicit MoodbarItemDelegate(Application* app, PlaylistView* view, QObject* parent = nullptr);
 
   void paint(QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index) const;
 

src/moodbar/moodbarloader.h

@@ -36,7 +36,7 @@ class MoodbarLoader : public QObject {
   Q_OBJECT
 
  public:
-  MoodbarLoader(Application* app, QObject* parent = nullptr);
+  explicit MoodbarLoader(Application* app, QObject* parent = nullptr);
   ~MoodbarLoader();
 
   enum Result {

src/moodbar/moodbarpipeline.h

@@ -36,7 +36,7 @@ class MoodbarPipeline : public QObject {
   Q_OBJECT
 
  public:
-  MoodbarPipeline(const QUrl& local_filename);
+  explicit MoodbarPipeline(const QUrl& local_filename);
   ~MoodbarPipeline();
 
   static bool IsAvailable();

src/moodbar/moodbarproxystyle.h

@@ -48,7 +48,7 @@ class MoodbarProxyStyle : public QProxyStyle {
   Q_OBJECT
 
  public:
-  MoodbarProxyStyle(Application* app, QSlider* slider);
+  explicit MoodbarProxyStyle(Application* app, QSlider* slider);
   ~MoodbarProxyStyle();
 
   // QProxyStyle

src/moodbar/moodbarrenderer.h

@@ -54,10 +54,10 @@ class MoodbarRenderer {
   static QImage RenderToImage(const ColorVector& colors, const QSize& size);
 
  private:
-  MoodbarRenderer();
+  explicit MoodbarRenderer();
 
   struct StyleProperties {
-    StyleProperties(int threshold = 0, int range_start = 0, int range_delta = 0, int sat = 0, int val = 0)
+    explicit StyleProperties(int threshold = 0, int range_start = 0, int range_delta = 0, int sat = 0, int val = 0)
         : threshold_(threshold),
           range_start_(range_start),
           range_delta_(range_delta),