make alpha blended panels work

unfortunately all windows must have alpha channel

desktopcorona.cpp

@@ -186,6 +186,7 @@ void DesktopCorona::checkViews()
     } else if (m_views.count() < m_desktopWidget->screenCount()) {
         for (int i = m_views.count(); i < m_desktopWidget->screenCount(); ++i) {
             View *view = new View(this);
+            QSurfaceFormat format;
             view->init();
             view->show();
             

panelview.cpp

@@ -25,12 +25,11 @@
 PanelView::PanelView(Plasma::Corona *corona, QWindow *parent)
     : View(corona, parent)
 {
-    //FIXME: this works only if done in View
+    QSurfaceFormat format;
-    /*QSurfaceFormat format;
     format.setAlphaBufferSize(8);
     setFormat(format);
     setClearBeforeRendering(true);
-    setColor(QColor(Qt::transparent));*/
+    setColor(QColor(Qt::transparent));
     setFlags(Qt::FramelessWindowHint);
 }
 

view.cpp

@@ -28,6 +28,11 @@ View::View(Plasma::Corona *corona, QWindow *parent)
     : QQuickView(parent),
       m_corona(corona)
 {
+    //FIXME: for some reason all windows must have alpha enable otherwise the ones that do won't paint.
+    //Probably is an architectural problem
+    QSurfaceFormat format;
+    format.setAlphaBufferSize(8);
+    setFormat(format);
 }
 
 View::~View()