Remove debug code from renderer

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

cmd/pad/main.go

@@ -67,6 +67,11 @@ func run(w *app.Window) error {
 			currentElems := elems
 			mu.Unlock()
 
+			log.Println("FrameEvent: rendering", len(currentElems), "elements")
+			for i, elem := range currentElems {
+				log.Println("  Element", i, "type:", typeOf(elem))
+			}
+
 			gtx := app.NewContext(&ops, e)
 			renderer.Draw(gtx, currentElems)
 			e.Frame(&ops)
@@ -84,3 +89,20 @@ func frameReceiver(w *app.Window, mu *sync.Mutex, elems *[]ui.Element, frameChan
 		mu.Unlock()
 	}
 }
+
+func typeOf(v any) string {
+	switch v.(type) {
+	case ui.Label:
+		return "Label"
+	case ui.ListView:
+		return "ListView"
+	case ui.StatusBar:
+		return "StatusBar"
+	case ui.BottomBar:
+		return "BottomBar"
+	case ui.Button:
+		return "Button"
+	default:
+		return "Unknown"
+	}
+}