qt: add missing virtual destructor

modules/gui/qt/dialogs/vlm/vlm.hpp

@@ -149,6 +149,7 @@ public:
     VLMAWidget( VLMWrapper *, const QString& name, const QString& input,
                 const QString& inputOptions, const QString& output,
                 bool _enable, VLMDialog *parent, int _type = QVLM_Broadcast );
+    virtual ~VLMAWidget() = default;
     virtual void update() = 0;
 protected:
     QLabel *nameLabel;

modules/gui/qt/maininterface/compositor.hpp

@@ -94,6 +94,7 @@ public:
     class QmlUISurface
     {
     public:
+        virtual ~QmlUISurface() = default;
         virtual QQmlEngine* engine() const = 0;
         virtual void setContent(QQmlComponent *component, QQuickItem *item) = 0;
 

modules/gui/qt/medialibrary/medialib.hpp

@@ -218,6 +218,7 @@ class RunOnMLThreadBaseRunner : public QObject, public QRunnable
 {
     Q_OBJECT
 public:
+    virtual ~RunOnMLThreadBaseRunner() = default;
     virtual void runUICallback() = 0;
     virtual void cancel() = 0;
 signals:

modules/gui/qt/medialibrary/mlfoldersmodel.hpp

@@ -55,6 +55,7 @@ public:
     };
 
     MLFoldersBaseModel( QObject *parent = nullptr );
+    virtual ~MLFoldersBaseModel() = default;
 
     void setCtx(MainCtx* ctx);
     inline MainCtx* getCtx() { return m_ctx; }

modules/gui/qt/util/asynctask.hpp

@@ -150,6 +150,8 @@ template <typename T>
 class AsyncTask : public BaseAsyncTask
 {
 public:
+    virtual ~AsyncTask() = default;
+
     virtual T execute() = 0;
 
     /**

modules/gui/qt/util/selectable_list_model.hpp

@@ -32,6 +32,8 @@ public:
     SelectableListModel(QObject *parent = nullptr) :
         QAbstractListModel(parent) {}
 
+    virtual ~SelectableListModel() = default;
+
     Q_INVOKABLE bool isSelected(int index) const;
     Q_INVOKABLE void setSelected(int index, bool selected);
     Q_INVOKABLE void toggleSelected(int index);