chore: 清理未使用的导入和变量，修复 QGraphicsScene 未定义错误

Author: hgmzhn

desktop_qt_ui/app_logic.py

@@ -23,7 +23,7 @@
 )
 from manga_translator.save import OUTPUT_FORMATS
 from PyQt6.QtCore import QObject, QThread, pyqtSignal, pyqtSlot
-from PyQt6.QtWidgets import QFileDialog, QListView, QTreeView
+from PyQt6.QtWidgets import QFileDialog
 
 from services import (
     get_config_service,

desktop_qt_ui/editor/desktop_ui_geometry.py

@@ -3,11 +3,7 @@
 替换 Qt 的坐标系统，使用 desktop-ui 的数据结构和算法
 """
 import math
-import time
 from typing import List, Tuple, Optional, Dict, Any
-
-# 全局变量，用于限制调试信息的刷新频率
-last_debug_print_time = 0
 import numpy as np
 import cv2
 from PyQt6.QtCore import QPointF

desktop_qt_ui/editor/editor_controller.py

@@ -690,9 +690,6 @@ async def _async_incremental_inpaint(self, current_mask, original_mask):
             x_min = max(0, x_min - padding)
             x_max = min(w, x_max + padding + 1)
 
-            bbox_w = x_max - x_min
-            bbox_h = y_max - y_min
-
             # 裁剪原图和当前蒙版的对应区域
             image_np = np.array(image.convert("RGB"))
             bbox_image = image_np[y_min:y_max, x_min:x_max]

desktop_qt_ui/editor/graphics_items.py

@@ -1,16 +1,15 @@
 
-import math
 import time
 from typing import List
 
-import cv2
 import numpy as np
 from PyQt6.QtCore import QPointF, QRectF, Qt
 from PyQt6.QtGui import QBrush, QColor, QPainter, QPainterPath, QPen, QPolygonF
 from PyQt6.QtWidgets import (
     QGraphicsItem,
     QGraphicsItemGroup,
     QGraphicsPixmapItem,
+    QGraphicsScene,
     QGraphicsSceneMouseEvent,
     QStyle,
 )
@@ -20,8 +19,6 @@
     handle_white_frame_edit,
     handle_vertex_edit,
     handle_edge_edit,
-    rotate_point,
-    get_polygon_center
 )
 
 

desktop_qt_ui/editor/graphics_view.py

@@ -19,7 +19,7 @@
     QTransform,
 )
 from PyQt6.QtCore import QRectF
-from PyQt6.QtWidgets import QGraphicsItem, QGraphicsPixmapItem, QGraphicsScene, QGraphicsView, QMenu
+from PyQt6.QtWidgets import QGraphicsPixmapItem, QGraphicsScene, QGraphicsView, QMenu
 
 # --- 新增Imports for Refactoring ---
 from editor import text_renderer_backend

desktop_qt_ui/editor_view.py

@@ -5,7 +5,6 @@
 from PyQt6.QtGui import QKeySequence, QShortcut
 from PyQt6.QtWidgets import (
     QHBoxLayout,
-    QLabel,
     QLineEdit,
     QPushButton,
     QSplitter,
@@ -405,8 +404,6 @@ def _create_right_panel(self) -> QWidget:
     @pyqtSlot(str)
     def _on_file_remove_requested(self, file_path: str):
         """处理文件移除请求：只处理编辑器自己的文件列表"""
-        import os
-        
         # 先在视图中移除（避免重建列表）
         self.file_list.remove_file(file_path)
 

desktop_qt_ui/main.py

@@ -69,17 +69,6 @@ def global_exception_handler(exc_type, exc_value, exc_traceback):
 # 设置全局异常处理器
 sys.excepthook = global_exception_handler
 
-def print_memory_snapshot():
-    """打印内存快照（前100行）"""
-    snapshot = tracemalloc.take_snapshot()
-    top_stats = snapshot.statistics('lineno')
-    print("\n" + "="*80)
-    print("📊 内存占用 TOP 100:")
-    print("="*80)
-    for i, stat in enumerate(top_stats[:100], 1):
-        print(f"{i}. {stat}")
-    print("="*80 + "\n")
-
 def main():
     """
     应用主入口
@@ -171,7 +160,7 @@ def close(self):
             # 设置AppUserModelID，让Windows识别这是独立应用
             myappid = 'manga.translator.ui.1.0'
             ctypes.windll.shell32.SetCurrentProcessExplicitAppUserModelID(myappid)
-        except Exception as e:
+        except Exception:
             pass
 
     # 1. 创建 QApplication 实例

desktop_qt_ui/main_view.py

@@ -14,10 +14,8 @@
     QLineEdit,
     QPushButton,
     QScrollArea,
-    QSizePolicy,
     QSplitter,
     QTabWidget,
-    QTextEdit,
     QVBoxLayout,
     QWidget,
 )

desktop_qt_ui/main_window.py

@@ -304,7 +304,6 @@ def _refresh_ui_texts(self):
 
         # 更新菜单文本
         menu_bar = self.menuBar()
-        menus = menu_bar.findChildren(QAction)
 
         # 由于菜单已经创建，我们需要重新设置文本
         # 这里简单地重新创建菜单栏