animation stop on hide event

src/gui/waiting_message_dialog/waitingmessagedialog.cpp

@@ -25,7 +25,6 @@
 #include "waitingmessagedialog.h"
 #include <QDebug>
 #include <QLabel>
-#include <QMovie>
 
 WaitingMessageDialog::WaitingMessageDialog(QWidget * parent):
     QDialog(parent),
@@ -38,12 +37,12 @@ WaitingMessageDialog::WaitingMessageDialog(QWidget * parent):
     //this->setWindowFlags(Qt::FramelessWindowHint);
     //this->setWindowFlags(Qt::WindowTitleHint);
 
-    QMovie *movie = new QMovie(":/xtpcpp_icon/resources/xtandempipeline_animated_gif.gif");
-    if (!movie->isValid())
+    _p_movie = new QMovie(":/xtpcpp_icon/resources/xtandempipeline_animated_gif.gif");
+    if (!_p_movie->isValid())
     {
         qDebug() << "WaitingMessageDialog::WaitingMessageDialog animation not found";
     }
-    ui->movie_label->setMovie(movie);
+    ui->movie_label->setMovie(_p_movie);
     //movie->start();
     qDebug() << "WaitingMessageDialog::WaitingMessageDialog end";
 }
@@ -56,3 +55,13 @@ WaitingMessageDialog::~WaitingMessageDialog()
 void WaitingMessageDialog::message(const QString & message) {
     ui->message_label->setText(message);
 }
+
+void WaitingMessageDialog::hideEvent( QHideEvent* event ) {
+    QWidget::hideEvent( event );
+    qDebug() << "WaitingMessageDialog::hideEvent";
+    _p_movie->stop();
+} 
+void WaitingMessageDialog::showEvent( QShowEvent* event ) {
+    QWidget::showEvent( event );
+    _p_movie->start();
+} 

src/gui/waiting_message_dialog/waitingmessagedialog.h

@@ -26,6 +26,7 @@
 
 #include <QDialog>
 #include <QStringListModel>
+#include <QMovie>
 #include "../project_view/automatic_filter_widget/automaticfilterwidget.h"
 
 
@@ -43,9 +44,12 @@ public:
     ~WaitingMessageDialog();
     
     void message(const QString & message);
+    void showEvent( QShowEvent* event );
+    void hideEvent( QHideEvent* event );
 
 private:
     Ui::WaitingMessageDialog *ui;
+    QMovie * _p_movie;
 
 };