删除所有外部旧引用

app/tests/local_dimming.py

@@ -1,7 +1,7 @@
 """Local Dimming 测试逻辑（应用层）。
 
 整合自原 drivers/local_dimming_test.py：窗口图片生成与测试主循环
-直接落在本模块，UCD 通用操作下沉到 drivers.ucd_helpers。
+直接落在本模块，UCD 通用操作通过 SignalService 完成。
 """
 
 import atexit
@@ -18,7 +18,6 @@ from tkinter import filedialog, messagebox
 import numpy as np
 from PIL import Image
 
-from drivers.ucd_helpers import get_current_resolution
 
 
 # --------------------------------------------------------------------------
@@ -90,7 +89,7 @@ def _ensure_window_image(width, height, percentage):
 
 def start_local_dimming_test(self):
     """开始 Local Dimming 测试。"""
-    if not self.ca or not self.ucd.status:
+    if not self.ca or not self.signal_service.is_connected:
         messagebox.showerror("错误", "请先连接 CA410 和 UCD323")
         return
 
@@ -111,7 +110,7 @@ def start_local_dimming_test(self):
         log("开始 Local Dimming 测试", level="info")
         log("=" * 60, level="separator")
 
-        width, height = get_current_resolution(self.ucd)
+        width, height = self.signal_service.current_resolution()
         total = len(DEFAULT_WINDOW_PERCENTAGES)
         log(f"  分辨率: {width}x{height}", level="info")
         log(f"  测试窗口: {DEFAULT_WINDOW_PERCENTAGES}", level="info")
@@ -182,7 +181,7 @@ def stop_local_dimming_test(self):
 
 def send_ld_window(self, percentage):
     """发送指定百分比的白色窗口（手动模式）。"""
-    if not self.ucd.status:
+    if not self.signal_service.is_connected:
         messagebox.showwarning("警告", "请先连接 UCD323 设备")
         return
 
@@ -190,7 +189,7 @@ def send_ld_window(self, percentage):
     self.current_ld_percentage = percentage
 
     def send():
-        width, height = get_current_resolution(self.ucd)
+        width, height = self.signal_service.current_resolution()
         try:
             image_path = _ensure_window_image(width, height, percentage)
         except Exception as e: