Add simple live mode that show last image added to directory

imageringlist.cpp

@@ -94,6 +94,7 @@ void Image::imageLoaded(QImage img)
 }
 
 ImageRingList::ImageRingList(QObject *parent) : QObject(parent)
+  , m_liveMode(false)
 {
     connect(&m_fileSystemWatcher, SIGNAL(directoryChanged(QString)), this, SLOT(dirChanged(QString)));
 }
@@ -107,13 +108,13 @@ bool ImageRingList::setDir(const QString path, const QString &currentFile)
         QStringList nameFilter;
         nameFilter << "*.jpg" << "*.png" << "*.cr2";
 
-        QStringList list = dir.entryList(nameFilter, QDir::Files | QDir::Readable, QDir::Name);
+        QStringList list = dir.entryList(nameFilter, QDir::Files | QDir::Readable, m_liveMode ? QDir::Time : QDir::Name);
         QStringList absolutePaths;
         foreach(const QString &file, list)
         {
             absolutePaths.append(dir.absoluteFilePath(file));
         }
-        setFiles(absolutePaths, currentFile);
+        setFiles(absolutePaths, m_liveMode ? list.first() : currentFile);
 
         m_fileSystemWatcher.removePaths(m_fileSystemWatcher.directories());
         m_fileSystemWatcher.addPath(path);
@@ -162,6 +163,11 @@ void ImageRingList::decrement()
     }
 }
 
+void ImageRingList::setLiveMode(bool live)
+{
+    m_liveMode = live;
+}
+
 void ImageRingList::setFiles(const QStringList files, const QString &currentFile)
 {
     m_images.clear();