增加了删除图片的功能。

data_management/ui/preview_panel.py

@@ -151,12 +151,16 @@ class PreviewPanel(ctk.CTkFrame):
         parent,
         sqlite_manager,
         on_download_callback: Callable,
+        mysql_manager=None,
+        on_delete_callback: Callable = None,
         **kwargs
     ):
         super().__init__(parent, **kwargs)
         
         self.sqlite_manager = sqlite_manager
+        self.mysql_manager = mysql_manager
         self.on_download_callback = on_download_callback
+        self.on_delete_callback = on_delete_callback
         
         # 数据
         self.current_data = []
@@ -235,6 +239,17 @@ class PreviewPanel(ctk.CTkFrame):
         )
         self.download_btn.pack(side="left", padx=5)
         
+        self.delete_btn = ctk.CTkButton(
+            left_buttons,
+            text="🗑️ 删除选中",
+            command=self._on_delete,
+            width=100,
+            height=30,
+            fg_color="red",
+            hover_color="darkred"
+        )
+        self.delete_btn.pack(side="left", padx=5)
+        
         # 分页控件
         page_frame = ctk.CTkFrame(bottom_frame)
         page_frame.pack(side="right", padx=10, pady=10)
@@ -383,6 +398,94 @@ class PreviewPanel(ctk.CTkFrame):
         if self.on_download_callback:
             self.on_download_callback(selected_data)
     
+    def _on_delete(self):
+        """删除选中的图片"""
+        if not self.selected_ids:
+            messagebox.showwarning("提示", "请先选择要删除的图片")
+            return
+        
+        # 获取选中的图片数据
+        selected_data = [
+            data for data in self.current_data
+            if data['id'] in self.selected_ids
+        ]
+        
+        # 二次确认（简化版，不显示删除范围选项）
+        count = len(selected_data)
+        confirm = messagebox.askyesno(
+            "确认删除",
+            f"确定要删除选中的 {count} 张图片吗？\n\n"
+            "此操作将:\n"
+            "1. 从MySQL数据库中删除记录\n"
+            "2. 删除已下载的本地文件（如有）\n\n"
+            "删除后无法恢复！",
+            icon='warning'
+        )
+        
+        if not confirm:
+            return
+        
+        # 在后台线程执行删除
+        def delete_thread():
+            try:
+                from config import DELETE_MODE
+                
+                success_count = 0
+                failed_ids = []
+                
+                for data in selected_data:
+                    try:
+                        # 模式B: 仅删除MySQL
+                        if DELETE_MODE == 'remote':
+                            # 删除MySQL记录
+                            if self.mysql_manager:
+                                deleted = self.mysql_manager.delete_records(
+                                    data['datasource'],
+                                    [data['id']]
+                                )
+                                if deleted > 0:
+                                    # 删除SQLite记录和本地文件
+                                    self.sqlite_manager.delete_download_record(
+                                        data['datasource'],
+                                        data['image_url'],
+                                        delete_file=True
+                                    )
+                                    success_count += 1
+                                else:
+                                    failed_ids.append(data['id'])
+                            else:
+                                failed_ids.append(data['id'])
+                    except Exception as e:
+                        print(f"删除记录失败 (ID: {data['id']}): {e}")
+                        failed_ids.append(data['id'])
+                
+                # 更新UI（在主线程）
+                self.after(0, lambda: self._on_delete_complete(success_count, len(failed_ids)))
+                
+            except Exception as e:
+                print(f"删除操作失败: {e}")
+                self.after(0, lambda: messagebox.showerror("错误", f"删除失败: {e}"))
+        
+        threading.Thread(target=delete_thread, daemon=True).start()
+    
+    def _on_delete_complete(self, success_count: int, failed_count: int):
+        """删除完成回调"""
+        # 显示结果
+        if failed_count == 0:
+            messagebox.showinfo("删除成功", f"成功删除 {success_count} 张图片")
+        else:
+            messagebox.showwarning(
+                "部分删除失败",
+                f"成功删除 {success_count} 张图片\n失败 {failed_count} 张"
+            )
+        
+        # 清空选中
+        self.selected_ids.clear()
+        
+        # 调用删除回调，刷新数据
+        if self.on_delete_callback:
+            self.on_delete_callback()
+    
     def _on_preview(self, data: Dict):
         """查看大图"""
         # 创建预览窗口