add effectArea in DebugWindow

--export correctly the drawEffects variable

app/dockview.cpp

@@ -742,7 +742,7 @@ void DockView::setDrawShadows(bool draw)
 
 bool DockView::drawEffects() const
 {
-    return m_drawShadows;
+    return m_drawEffects;
 }
 
 void DockView::setDrawEffects(bool draw)

containment/contents/ui/DebugWindow.qml

@@ -140,6 +140,36 @@ Window{
                       dock.localGeometry.width + "x" + dock.localGeometry.height
             }
 
+            Text{
+                text: "Draw Effects"+space
+            }
+
+            Text{
+                text: {
+                    if (dock.drawEffects)
+                        return "Yes";
+                    else
+                        return "No";
+                }
+            }
+
+            Text{
+                text: "Effects Area"+space
+            }
+
+            Text{
+                text: dock.effectsArea.x + ", " + dock.effectsArea.y + "  " +
+                      dock.effectsArea.width + "x" + dock.effectsArea.height
+            }
+
+            Text{
+                text: "   -----------   "
+            }
+
+            Text{
+                text: " -----------   "
+            }
+
             Text{
                 text: "Is Hidden (flag)"+space
             }