[fix] global: fix ctor-missing-parent-argument

https://github.com/KDE/clazy/blob/master/docs/checks/README-ctor-missing-parent-argument.md

Author: bgallois

src/annotation.cpp

@@ -82,7 +82,7 @@ Annotation::Annotation(const QString &filePath) : Annotation() {
 /**
  * @brief Constructs the annotation object from a file path.
  */
-Annotation::Annotation() : annotationFile{new QFile()}, annotations{new QMap<int, QString>()}, isActive{false} {
+Annotation::Annotation(QWidget *parent) : annotationFile{new QFile()}, annotations{new QMap<int, QString>()}, isActive{false} {
 }
 
 /**

src/annotation.h

@@ -38,7 +38,7 @@ class Annotation : public QWidget {
   void annotationText(const QString &text);
 
  public:
-  Annotation();
+  explicit Annotation(QWidget *parent = nullptr);
   Annotation(const QString &annotationFile);
   Annotation(const Annotation &T) = delete;
   Annotation &operator=(const Annotation &T) = delete;

src/autolevel.h

@@ -45,7 +45,7 @@ class AutoLevel : public QObject {
   double computeStdPerimeter(const Data &data);
 
  public:
-  AutoLevel() = default;
+  explicit AutoLevel(QWidget *parent = nullptr) : QObject(parent){};
   ~AutoLevel();
   AutoLevel(const string &path, const UMat &background, const QMap<QString, QString> &parameters);
   AutoLevel(const AutoLevel &T) = delete;

src/tracking.h

@@ -109,7 +109,7 @@ class Tracking : public QObject {
   QMap<QString, QString> parameters;      /*!< map of all the parameters for the tracking. */
 
  public:
-  Tracking() = default;
+  explicit Tracking(QWidget *parent = nullptr) : QObject(parent){};
   Tracking(const string &path, const string &background, int startImage = 0, int stopImage = -1);
   Tracking(const string &path, const UMat &background, int startImage = 0, int stopImage = -1);
   Tracking(const Tracking &) = delete;