- Add the ability to parse the RSS feeds from reddit groups (in particular the image feed groups like EarthPorn) and display them

src/mainwindow.cpp

@@ -17,6 +17,7 @@
 #include <QGraphicsPixmapItem>
 #include <QApplication>
 #include <QScreen>
+#include <QNetworkReply>
 #include <sstream>
 
 MainWindow::MainWindow(QWidget *parent) :
@@ -165,15 +166,46 @@ void MainWindow::checkWindowSize()
 void MainWindow::setImage(const ImageDetails &imageDetails)
 {
     currentImage = imageDetails;
+    downloadedData.clear();
+    if (pendingReply)
+    {
+      pendingReply->abort();
+    }
     updateImage(false);
 }
 
+void MainWindow::fileDownloaded(QNetworkReply* netReply) 
+{
+  if (netReply == pendingReply)
+  {
+    pendingReply = nullptr;
+    QNetworkReply::NetworkError err = netReply->error();
+    if (err == QNetworkReply::NoError)
+    {
+      downloadedData = netReply->readAll();
+      netReply->deleteLater();
+      updateImage(false);
+    }
+  }
+}
+
 void MainWindow::updateImage(bool immediately)
 {
     checkWindowSize();
     if (currentImage.filename == "")
       return;
 
+    if (currentImage.filename.find("https://") != std::string::npos && downloadedData.isNull())
+    {
+      if (pendingReply == nullptr)
+      {
+        QNetworkRequest request(QUrl(currentImage.filename.c_str()));
+        pendingReply = networkManager->get(request);
+        connect( networkManager, SIGNAL (finished(QNetworkReply*)), this, SLOT (fileDownloaded(QNetworkReply*)));
+      }
+      return;
+    }
+
     QLabel *label = this->findChild<QLabel*>("image");
     const QPixmap* oldImage = label->pixmap();
     if (oldImage != NULL && !immediately)
@@ -183,7 +215,28 @@ void MainWindow::updateImage(bool immediately)
       this->setPalette(palette);
     }
 
-    QPixmap p( currentImage.filename.c_str() );
+    QPixmap p;
+    if (!downloadedData.isNull())
+    {
+      p.loadFromData(downloadedData);
+      // BUG BUG have the selector update this?
+      currentImage.width = p.width();
+      currentImage.height = p.height();
+      currentImage.rotation = 0;
+      if (currentImage.width > currentImage.height) {
+        currentImage.aspect = ImageAspect_Landscape;
+      } else if (currentImage.height > currentImage.width) {
+        currentImage.aspect = ImageAspect_Portrait;
+      } else {
+        currentImage.aspect = ImageAspect_Any;
+      }
+
+    }
+    else
+    {
+      p.load( currentImage.filename.c_str() );
+    }
+
     if(debugMode)
     {
       std::cout << "size:" << p.width() << "x" << p.height() << "(window:" << width() << "," << height() << ")" << std::endl;
@@ -382,3 +435,8 @@ const ImageDisplayOptions &MainWindow::getBaseOptions()
 {
    return baseImageOptions; 
 }
+
+void MainWindow::setNetworkManager(QNetworkAccessManager *networkManagerIn)
+{
+  networkManager = networkManagerIn;
+}