FEATURE: Download first/last pieces first when sequential download is

enabled (Thanks Ahmad)

Changelog

@@ -12,6 +12,8 @@
     - FEATURE: Added "Amount downloaded/left" columns to transfer list
     - FEATURE: Simplified proxy settings
     - FEATURE: Optimized and improved the peer country resolution code
+    - FEATURE: Download first/last pieces first when sequential download is
+    enabled (Thanks Ahmad)
     - BUGFIX: Fix SOCKS5 proxy authentication in search engine(closes #680072)
     - COSMETIC: Replaced message box by on-screen notification for download errors
     - COSMETIC: Improved the torrent creation tool appearance

src/transferlistwidget.cpp

@@ -562,7 +562,10 @@ void TransferListWidget::toggleSelectedTorrentsSequentialDownload() const {
   foreach(const QString &hash, hashes) {
     QTorrentHandle h = BTSession->getTorrentHandle(hash);
     if(h.is_valid() && h.has_metadata()) {
-      h.set_sequential_download(!h.is_sequential_download());
+      bool was_sequential = h.is_sequential_download();
+      h.set_sequential_download(!was_sequential);
+      if(!was_sequential)
+        h.prioritize_first_last_piece(true);
     }
   }
 }