Add delay to directory reload

imageringlist.cpp

@@ -114,6 +114,11 @@ ImageRingList::ImageRingList(Database *database, const QStringList &nameFilter,
 
     m_slideShowTimer = new QTimer(this);
     connect(m_slideShowTimer, &QTimer::timeout, this, static_cast<void (ImageRingList::*)()>(&ImageRingList::increment));
+
+    m_dirChangeDelay = new QTimer(this);
+    m_dirChangeDelay->setInterval(3000);
+    m_dirChangeDelay->setSingleShot(true);
+    connect(m_dirChangeDelay, &QTimer::timeout, this, &ImageRingList::reloadDir);
 }
 
 ImageRingList::~ImageRingList()
@@ -496,13 +501,19 @@ void ImageRingList::imageLoaded(Image *image)
 }
 
 void ImageRingList::dirChanged(QString dir)
+{
+    m_currentDir = dir;
+    m_dirChangeDelay->start();
+}
+
+void ImageRingList::reloadDir()
 {
     QString currentFile;
 
     if(m_images.size())
         currentFile = (*m_currImage)->name();
 
-    setDir(dir, currentFile);
+    setDir(m_currentDir, currentFile);
     if(m_images.size())
         emit currentImageChanged(m_currImage-m_images.begin());
 }

imageringlist.h

@@ -66,6 +66,8 @@ class ImageRingList : public QAbstractItemModel
     Database *m_database;
     QStringList m_nameFilter;
     QTimer *m_slideShowTimer;
+    QTimer *m_dirChangeDelay;
+    QString m_currentDir;
 public:
     explicit ImageRingList(Database *database, const QStringList &nameFilter, QObject *parent = 0);
     ~ImageRingList() override;
@@ -110,6 +112,7 @@ signals:
 protected slots:
     void imageLoaded(Image *image);
     void dirChanged(QString dir);
+    void reloadDir();
 };
 
 #endif // IMAGERINGLIST_H