Paint RoomList's background (#137)

include/RoomList.h

@@ -68,6 +68,9 @@ public slots:
         void closeLeaveRoomDialog(bool leaving, const QString &room_id);
         void clearRoomMessageCount(const QString &room_id);
 
+protected:
+        void paintEvent(QPaintEvent *event) override;
+
 private:
         void calculateUnreadMessageCount();
 

resources/styles/nheko-dark.qss

@@ -12,6 +12,11 @@ TimelineView > * {
     background-color: #383c4a;
 }
 
+RoomList,
+RoomList > * {
+    background-color: #383c4a;
+}
+
 FlatButton {
     qproperty-foregroundColor: #caccd1;
     qproperty-backgroundColor: #333;

resources/styles/nheko.qss

@@ -3,21 +3,26 @@ QLabel {
 }
 
 #chatPage,
-#chatPage > * { 
-    background-color: white; 
+#chatPage > * {
+    background-color: white;
 }
 
 TimelineView,
 TimelineView > * {
-    background-color: white; 
+    background-color: white;
 }
 
-FlatButton { 
-    qproperty-foregroundColor: #333; 
+RoomList,
+RoomList > * {
+    background-color: white;
 }
 
-RaisedButton { 
-    qproperty-foregroundColor: white; 
+FlatButton {
+    qproperty-foregroundColor: #333;
+}
+
+RaisedButton {
+    qproperty-foregroundColor: white;
 }
 
 RoomInfoListItem {

src/RoomList.cc

@@ -281,3 +281,12 @@ RoomList::closeLeaveRoomDialog(bool leaving, const QString &room_id)
                 client_->leaveRoom(room_id);
         }
 }
+
+void
+RoomList::paintEvent(QPaintEvent *)
+{
+        QStyleOption opt;
+        opt.init(this);
+        QPainter p(this);
+        style()->drawPrimitive(QStyle::PE_Widget, &opt, &p, this);
+}