cleanup

src/imageselector.cpp

@@ -0,0 +1,34 @@
+#include "imageselector.h"
+#include "mainwindow.h"
+#include <QTimer>
+#include <QApplication>
+#include <QDir>
+#include <iostream>
+#include <stdlib.h>     /* srand, rand */
+#include <time.h>       /* time */
+
+ImageSelector::ImageSelector(MainWindow& w, unsigned int timeout, std::string path):
+    QObject::QObject(),
+    window(w),
+    timeout(timeout),
+    path(path),
+    timer(this)
+{
+    srand (time(NULL));
+}
+
+void ImageSelector::updateImage()
+{
+    QDir directory(path.c_str());
+    QStringList images = directory.entryList(QStringList() << "*.jpg" << "*.JPG",QDir::Files);
+    unsigned int selectedImage = rand() % images.size();
+    std::string filename = directory.filePath(images.at(selectedImage)).toStdString();
+    std::cout << "updating image: " << filename << std::endl;
+    window.setImage(filename);
+}
+
+void ImageSelector::start(){
+    updateImage();
+    connect(&timer, SIGNAL(timeout()), this, SLOT(updateImage()));
+    timer.start(timeout);
+}