Перенес формирование Item ов в отдельный поток

InstructorsAndTrainees/widgets/waitanimationwidget.cpp

@@ -29,6 +29,11 @@ void WaitAnimationWidget::hideWithStop()
     loadingMovie->stop();
 }
 
+void WaitAnimationWidget::resize(QSize size)
+{
+    setFixedSize(size);
+}
+
 WaitAnimationWidget::~WaitAnimationWidget()
 {
     delete ui;

InstructorsAndTrainees/widgets/waitanimationwidget.h

@@ -17,6 +17,7 @@ public:
     void initialize(QMovie *movie,QWidget *parent);
     void showWithPlay();
     void hideWithStop();
+    void resize(QSize size);
     ~WaitAnimationWidget();
 
 private: