jiateng_ws/widgets/camera_settings_widget.py

import sys
import os
import logging
from ctypes import *
from math import log10
from camera.CameraParams_const import *
# 添加相机模块路径
sys.path.append(os.path.join(os.path.dirname(os.path.dirname(__file__)), "camera"))

try:
    from PySide6.QtWidgets import QMessageBox, QFileDialog
    from PySide6.QtCore import Qt, Signal
    USE_PYSIDE6 = True
except ImportError:
    from PyQt5.QtWidgets import QMessageBox, QFileDialog
    from PyQt5.QtCore import Qt
    from PyQt5.QtCore import pyqtSignal as Signal
    USE_PYSIDE6 = False

# 导入相机相关模块
from camera.MvCameraControl_class import MvCamera
from camera.CamOperation_class import CameraOperation
from camera.MvErrorDefine_const import *
from camera.CameraParams_header import *
from ui.settings_ui import SettingsUI

# 导入相机管理器
from widgets.camera_manager import CameraManager

# 导入本地图像播放器
from utils.local_image_player import LocalImagePlayer
# 导入配置加载器
from utils.config_loader import ConfigLoader

from PySide6.QtCore import QObject
import json

class CameraSettingsWidget(QObject):
    """相机设置控制器，管理相机设置并提供与主窗口相机显示部分的通信
    注意：这是一个QObject控制器，不是QWidget，只处理逻辑，UI控件需要从父组件获取"""
    
    # 定义信号 
    signal_camera_connection = Signal(bool, str)  # 相机连接状态信号 (是否连接, 错误消息)
    signal_camera_params_changed = Signal(float, float, float)  # 相机参数变化信号 (曝光, 增益, 帧率)
    signal_camera_error = Signal(str)  # 相机错误信号
    settings_changed = Signal()  # 设置变更信号，与 SettingsWindow 兼容
    signal_local_mode_changed = Signal(bool)  # 本地图像模式变更信号 (是否启用)
    
    def __init__(self, parent=None):
        """初始化相机设置控制器
        
        Args:
            parent: 父组件，需要包含所有必要的UI控件
        """
        # 作为QObject初始化
        super().__init__(parent)
        
        # 记录父组件引用
        self.parent = parent
        
        # 获取相机管理器实例
        self.camera_manager = CameraManager.get_instance()
        
        # 加载配置
        try:
            self.config_loader = ConfigLoader()
            self.camera_config = self.config_loader.get_config("camera")
            # 使用 .get() 来安全地访问 'display'
            self.display_config = self.camera_config.get("display", {})
        except Exception as e:
            logging.error(f"加载相机配置文件失败: {e}")
            self.camera_config = {}
            self.display_config = {}

        # 创建本地图像播放器
        self.local_player = LocalImagePlayer()
        
        # 本地图像模式状态
        self.local_mode_enabled = False
        self.is_playing = False
        
        # 初始化日志记录
        logging.debug("CameraSettingsWidget初始化开始")
        
        # 从父组件获取所有需要的UI控件
        if parent is not None:
            logging.info(f"父控件类型: {type(parent).__name__}")
            
            # 从父组件获取所有需要的UI控件
            self.camera_combo = getattr(parent, 'camera_combo', None)
            self.refresh_button = getattr(parent, 'refresh_button', None)
            self.open_button = getattr(parent, 'open_button', None)
            self.close_button = getattr(parent, 'close_button', None)
            self.test_button = getattr(parent, 'test_button', None)
            self.exposure_slider = getattr(parent, 'exposure_slider', None)
            self.gain_slider = getattr(parent, 'gain_slider', None)
            self.framerate_slider = getattr(parent, 'framerate_slider', None)
            self.exposure_value = getattr(parent, 'exposure_value', None)
            self.gain_value = getattr(parent, 'gain_value', None)
            self.framerate_value = getattr(parent, 'framerate_value', None)
            self.get_params_button = getattr(parent, 'get_params_button', None)
            self.set_params_button = getattr(parent, 'set_params_button', None)
            self.save_camera_button = getattr(parent, 'save_camera_button', None)
            self.preview_frame = getattr(parent, 'preview_frame', None)
            self.preview_status = getattr(parent, 'preview_status', None)
            
            # 本地图像模式相关控件
            self.local_mode_check = getattr(parent, 'local_mode_check', None)
            self.folder_path_edit = getattr(parent, 'folder_path_edit', None)
            self.folder_path_button = getattr(parent, 'folder_path_button', None)
            self.local_framerate_slider = getattr(parent, 'local_framerate_slider', None)
            self.local_framerate_value = getattr(parent, 'local_framerate_value', None)
            self.loop_playback_check = getattr(parent, 'loop_playback_check', None)
            self.play_button = getattr(parent, 'play_button', None)
            self.stop_button = getattr(parent, 'stop_button', None)
            
            # 检查是否成功获取到了所有必要的UI控件
            if self.camera_combo is None:
                logging.error("未能从父组件获取camera_combo")
            else:
                logging.info(f"获取到父组件的camera_combo: ID={id(self.camera_combo)}, 项目数={self.camera_combo.count()}")
                
                # 测试向下拉框添加项目
                try:
                    self.camera_combo.addItem("控制器初始化测试项")
                    logging.info(f"成功添加测试项到camera_combo，当前项目数={self.camera_combo.count()}")
                except Exception as e:
                    logging.error(f"添加测试项失败: {e}")
        else:
            logging.error("CameraSettingsWidget必须有一个包含UI控件的父组件")
            # 创建缺少的UI控件引用，这些引用将为None
            self.camera_combo = None
            self.refresh_button = None
            self.open_button = None
            self.close_button = None
            self.test_button = None
            self.exposure_slider = None
            self.gain_slider = None
            self.framerate_slider = None
            self.exposure_value = None
            self.gain_value = None
            self.framerate_value = None
            self.get_params_button = None
            self.set_params_button = None 
            self.save_camera_button = None
            self.preview_frame = None
            self.preview_status = None
            self.local_mode_check = None
            self.folder_path_edit = None
            self.folder_path_button = None
            self.local_framerate_slider = None
            self.local_framerate_value = None
            self.loop_playback_check = None
            self.play_button = None
            self.stop_button = None

        # 连接本地图像播放器信号
        self.connect_local_player_signals()
        
        # 连接信号和槽
        self.connect_signals()

        # 初始化相机参数范围 - 注意：曝光参数的实际范围已改为线性映射
        self.frame_rate_min = 1.0
        self.frame_rate_max = 60.0
        # 以下曝光范围仅用于兼容旧代码，实际的映射在update_exposure_value方法中实现
        self.exposure_min = 0.0    # 0 μs (最小值)
        self.exposure_max = 20000.0 # 20000 μs (20ms) - 调整后的最大值
        self.gain_min = 0.0
        self.gain_max = 15.0
        
        # 从配置加载本地模式设置
        self.load_local_mode_settings()
        
        # 更新本地模式UI
        self.update_local_mode_ui()
        
        # 枚举设备
        self.refresh_devices()
    
    def connect_local_player_signals(self):
        """连接本地图像播放器的信号"""
        if self.local_player:
            self.local_player.signal_status.connect(self.handle_local_player_status)
            self.local_player.signal_error.connect(self.handle_local_player_error)
            self.local_player.signal_progress.connect(self.handle_local_player_progress)
            self.local_player.signal_frame_ready.connect(self.handle_local_player_frame)
            self.local_player.signal_completed.connect(self.handle_local_player_completed)
    
    def connect_signals(self):
        """连接信号和槽"""
        # 设备选择和刷新
        if hasattr(self, 'refresh_button'):
            self.refresh_button.clicked.connect(self.refresh_devices)
        
        # 相机控制按钮
        self.open_button.clicked.connect(self.open_camera)
        self.close_button.clicked.connect(self.close_camera)
        self.test_button.clicked.connect(self.test_camera)
        
        # 参数滑块
        self.exposure_slider.valueChanged.connect(self.update_exposure_value)
        self.gain_slider.valueChanged.connect(self.update_gain_value)
        self.framerate_slider.valueChanged.connect(self.update_frame_rate_value)
        
        # 参数操作按钮
        self.get_params_button.clicked.connect(self.get_camera_params)
        self.set_params_button.clicked.connect(self.set_camera_params)
        self.save_camera_button.clicked.connect(self.save_camera_params)
        
        # 本地图像模式相关按钮和控件
        if self.local_mode_check:
            self.local_mode_check.stateChanged.connect(self.toggle_local_mode)
        
        if self.folder_path_button:
            self.folder_path_button.clicked.connect(self.choose_image_folder)
        
        if self.local_framerate_slider:
            self.local_framerate_slider.valueChanged.connect(self.update_local_framerate_value)
        
        if self.loop_playback_check:
            self.loop_playback_check.stateChanged.connect(self.update_loop_playback)
        
        if self.play_button:
            self.play_button.clicked.connect(self.play_local_images)
        
        if self.stop_button:
            self.stop_button.clicked.connect(self.stop_local_images)

    def refresh_devices(self):
        """刷新设备列表"""
        logging.info("【设备刷新】开始...")
        
        # 直接检查是否能访问正确的combobox
        if not hasattr(self, 'camera_combo') or self.camera_combo is None:
            logging.error("【设备刷新】无法访问camera_combo，尝试从父组件获取")
            
            # 尝试从父组件获取
            if hasattr(self, 'parent') and self.parent is not None:
                if hasattr(self.parent, 'camera_combo'):
                    self.camera_combo = self.parent.camera_combo
                    logging.info(f"【设备刷新】已从父组件获取camera_combo: {id(self.camera_combo)}")
                else:
                    logging.error("【设备刷新】父组件也没有camera_combo")
                    return
            else:
                logging.error("【设备刷新】无法获取camera_combo且没有父组件")
                return
                
        # 直接测试下拉框是否可用
        try:
            # 先清理
            self.camera_combo.clear()
            
            # 添加一个测试项
            self.camera_combo.addItem("刷新中...")
            logging.info(f"【设备刷新】成功添加测试项，当前项目数={self.camera_combo.count()}")
            
            # 更新UI
            self.camera_combo.update()
            self.camera_combo.repaint()
        except Exception as e:
            logging.error(f"【设备刷新】测试下拉框失败: {e}")
        
        # 1. 枚举设备
        try:
            devices_info = self.camera_manager.enum_devices()
            if not devices_info:
                logging.warning("【设备刷新】未发现任何相机设备。")
                devices_info = []
        except Exception as e:
            logging.error(f"【设备刷新】枚举设备时发生错误: {e}")
            devices_info = []

        # 2. 准备要显示到下拉列表的数据
        devList = []
        if devices_info:
            for device in devices_info:
                # 修复：安全获取 display 键，如果不存在则使用默认值
                if isinstance(device, dict):
                    display_name = device.get("display", f"设备 {len(devList)}")
                    devList.append(display_name)
                else:
                    # 如果整个设备对象不是字典，则添加一个默认名称
                    devList.append(f"设备 {len(devList)}")
            logging.info(f"【设备刷新】找到 {len(devList)} 个设备: {devList}")
        else:
            devList = ["未发现相机设备"]
            
        # 3. 清空并更新下拉列表
        self.camera_combo.clear()
        for dev in devList:
            self.camera_combo.addItem(dev)
            
        # 4. 更新UI状态
        self.update_controls()
    
    def get_selected_device_index(self):
        """获取当前选中的设备索引，参考BasicDemo.py的TxtWrapBy实现"""
        try:
            if not hasattr(self, 'camera_combo') or self.camera_combo is None:
                logging.error("无法获取设备索引：camera_combo不存在")
                return -1
                
            if self.camera_combo.count() == 0:
                logging.warning("设备下拉列表为空")
                return -1
                
            if self.camera_combo.currentText() == "未发现相机设备":
                return -1
            
            current_text = self.camera_combo.currentText()
            start = current_text.find("[") + 1
            end = current_text.find("]", start)
            
            if start <= 0 or end <= 0 or start >= end:
                logging.error(f"设备文本格式不正确: '{current_text}'")
                return -1
                
            return int(current_text[start:end])
        except Exception as e:
            logging.error(f"获取设备索引时出错: {e}, 文本: '{self.camera_combo.currentText() if hasattr(self, 'camera_combo') and self.camera_combo is not None else 'N/A'}'")
            return -1
    
    def update_controls(self):
        """更新控件状态"""
        is_open = self.camera_manager.isOpen
        is_grabbing = self.camera_manager.isGrabbing

        # 使用安全的方式访问控件
        if hasattr(self, 'refresh_button') and self.refresh_button is not None:
            self.refresh_button.setEnabled(not is_open)
        
        if hasattr(self, 'camera_combo') and self.camera_combo is not None:
            self.camera_combo.setEnabled(not is_open)
        
        has_valid_selection = self.get_selected_device_index() != -1
        
        if hasattr(self, 'open_button') and self.open_button is not None:
            self.open_button.setEnabled(not is_open and has_valid_selection)
        
        if hasattr(self, 'close_button') and self.close_button is not None:
            self.close_button.setEnabled(is_open)
        
        if hasattr(self, 'test_button') and self.test_button is not None:
            self.test_button.setEnabled(is_open and not is_grabbing)
        
        if hasattr(self, 'get_params_button') and self.get_params_button is not None:
            self.get_params_button.setEnabled(is_open)
        
        if hasattr(self, 'set_params_button') and self.set_params_button is not None:
            self.set_params_button.setEnabled(is_open)
        
        if hasattr(self, 'save_camera_button') and self.save_camera_button is not None:
            self.save_camera_button.setEnabled(is_open)

        if hasattr(self, 'exposure_slider') and self.exposure_slider is not None:
            self.exposure_slider.setEnabled(is_open)
        
        if hasattr(self, 'gain_slider') and self.gain_slider is not None:
            self.gain_slider.setEnabled(is_open)
        
        if hasattr(self, 'framerate_slider') and self.framerate_slider is not None:
            self.framerate_slider.setEnabled(is_open)
    
    def open_camera(self):
        """打开相机"""
        try:
            device_index = self.get_selected_device_index()
            if device_index < 0:
                error_msg = "未选择相机设备"
                self.signal_camera_error.emit(error_msg)
                return False
                
            logging.info(f"尝试打开相机设备，索引: {device_index}")
            
            # 使用相机管理器打开设备
            success = self.camera_manager.open_device(device_index)
            
            if success:
                logging.info(f"相机已成功打开")
                
                # 更新按钮状态
                self.update_controls()
                
                # 向父窗口发送连接状态变化信号
                self.signal_camera_connection.emit(True, "")
                
                # 更新配置
                config_loader = ConfigLoader.get_instance()
                config_loader.set_value('camera.enabled', True)
                config_loader.save_config()
                
                # 通知设置已更改
                self.settings_changed.emit()
                
                return True
            else:
                error_msg = "打开相机失败"
                self.signal_camera_error.emit(error_msg)
                return False
            
        except Exception as e:
            error_msg = f"打开相机时发生异常: {str(e)}"
            logging.error(error_msg)
            self.signal_camera_error.emit(error_msg)
            return False
    
    def close_camera(self):
        """关闭相机"""
        try:
            logging.info("尝试关闭相机")
            
            # 使用相机管理器关闭设备
            self.camera_manager.close_device()
            
            # 更新按钮状态
            self.update_controls()
            
            # 向父窗口发送连接状态变化信号
            self.signal_camera_connection.emit(False, "")
            
            # 更新配置
            config_loader = ConfigLoader.get_instance()
            config_loader.set_value('camera.enabled', False)
            config_loader.save_config()
            
            # 通知设置已更改
            self.settings_changed.emit()
            
            logging.info("相机已关闭")
            return True
        except Exception as e:
            error_msg = f"关闭相机时发生异常: {str(e)}"
            logging.error(error_msg)
            self.signal_camera_error.emit(error_msg)
            return False
    
    def test_camera(self):
        """测试相机（在预览窗口显示图像）"""
        if not self.camera_manager.isOpen:
            return
        
        if self.camera_manager.isGrabbing:
            self.camera_manager.stop_grabbing()
            self.test_button.setText("开始预览")
        else:
            try:
                window_id = int(self.preview_frame.winId())
                if self.camera_manager.start_grabbing(window_id):
                    self.test_button.setText("停止预览")
            except Exception as e:
                parent_widget = self.parent if hasattr(self, "parent") else None
                QMessageBox.warning(parent_widget, "错误", f"开始预览失败: {e}")
        
        self.update_controls()
    
    def update_exposure_value(self, value):
        """更新曝光值显示（使用线性映射）"""
        # 直接使用滑块值（0-100）映射到曝光范围（1000-50000 μs）
        # 使用UI中设置的实际曝光范围
        min_exp = 0      # 0 μs
        max_exp = 50000 
        
        # 线性映射
        actual_value = min_exp + (value * (max_exp - min_exp) / 100.0)
        
        # 防止溢出
        if actual_value > max_exp:
            actual_value = max_exp
            logging.warning(f"曝光值过大，已限制为{actual_value}μs")
            
        # 显示整数值，μs级别不需要小数点
        self.exposure_value.setText(f"{int(actual_value)} μs")
        logging.debug(f"曝光滑块值: {value}, 映射后曝光值: {int(actual_value)}μs")
    
    def update_gain_value(self, value):
        """更新增益值显示"""
        actual_value = self.gain_min + (value / 100.0) * (self.gain_max - self.gain_min)
        self.gain_value.setText(f"{actual_value:.1f} dB")
    
    def update_frame_rate_value(self, value):
        """更新帧率值显示"""
        actual_value = self.frame_rate_min + (value / 100.0) * (self.frame_rate_max - self.frame_rate_min)
        self.framerate_value.setText(f"{actual_value:.1f} fps")
    
    def get_camera_params(self):
        """获取相机参数"""
        if not self.camera_manager.isOpen:
            return
        
        params = self.camera_manager.get_parameters()
        if not params:
            return
        
        exposure_time, gain, frame_rate = params
        
        # 使用线性映射计算曝光滑块值
        min_exp = 0      # 0 μs
        max_exp = 20000  # 20000 μs
        
        # 将获取到的曝光时间限制在有效范围内
        if exposure_time < min_exp:
            exposure_time = min_exp
        elif exposure_time > max_exp:
            exposure_time = max_exp
            
        # 线性映射到滑块值（0-100）
        exposure_slider_value = int(((exposure_time - min_exp) / (max_exp - min_exp)) * 100)
        
        # 确保滑块值在有效范围内
        if exposure_slider_value < 0:
            exposure_slider_value = 0
        elif exposure_slider_value > 100:
            exposure_slider_value = 100
            
        self.exposure_slider.setValue(exposure_slider_value)
        
        # 其他参数仍使用原始映射方法
        self.gain_slider.setValue(int(((gain - self.gain_min) / (self.gain_max - self.gain_min)) * 100))
        self.framerate_slider.setValue(int(((frame_rate - self.frame_rate_min) / (self.frame_rate_max - self.frame_rate_min)) * 100))
        
        logging.debug(f"获取相机参数: 曝光时间={exposure_time}μs -> 滑块值={exposure_slider_value}, 增益={gain}dB, 帧率={frame_rate}fps")
        self.signal_camera_params_changed.emit(exposure_time, gain, frame_rate)
    
    def set_camera_params(self):
        """设置相机参数"""
        if not self.camera_manager.isOpen:
            return
        
        # 使用线性映射计算曝光时间
        min_exp = 0      # 0 μs
        max_exp = 50000  # 50000 μs
        
        # 根据滑块值（0-100）线性映射到曝光时间
        slider_value = self.exposure_slider.value()
        exposure_time = min_exp + (slider_value * (max_exp - min_exp) / 100.0)
        
        # 确保曝光时间在有效范围内
        if exposure_time < min_exp:
            exposure_time = min_exp
        elif exposure_time > max_exp:
            exposure_time = max_exp
            
        # 增益和帧率保持原来的映射方式
        gain = self.gain_min + (self.gain_slider.value() / 100.0) * (self.gain_max - self.gain_min)
        frame_rate = self.frame_rate_min + (self.framerate_slider.value() / 100.0) * (self.frame_rate_max - self.frame_rate_min)
        
        logging.debug(f"设置相机参数: 曝光滑块值={slider_value} -> 曝光时间={exposure_time}μs, 增益={gain}dB, 帧率={frame_rate}fps")
        self.camera_manager.set_parameters(frame_rate, exposure_time, gain)
        self.signal_camera_params_changed.emit(exposure_time, gain, frame_rate)
    
    def save_camera_params(self):
        """保存相机参数到配置文件"""
        if not self.camera_manager.isOpen:
            return
            
        exposure = self.exposure_slider.value()
        gain = self.gain_slider.value()
        frame_rate = self.framerate_slider.value()
        
        parent_widget = self.parent if hasattr(self, "parent") else None
        
        if self.camera_manager.save_params_to_config(exposure, gain, frame_rate):
            QMessageBox.information(parent_widget, "成功", "相机参数已保存")
            self.settings_changed.emit()
        else:
            QMessageBox.critical(parent_widget, "错误", "保存相机参数失败")
    
    def closeEvent(self, event):
        """窗口关闭事件"""
        if self.camera_manager.isOpen:
            self.camera_manager.close_device()
        super().closeEvent(event)

    def load_local_mode_settings(self):
        """加载本地图像模式的配置"""
        try:
            # 使用 .get() 防止因缺少 local_mode 键而崩溃
            config = self.camera_config.get("local_mode", {})
            self.local_mode_enabled = config.get("enabled", False)
            self.local_player.framerate = config.get("framerate", 15)
            self.local_player.loop = config.get("loop", True)
            folder_path = config.get("folder_path", "")
            
            # 更新UI组件
            if self.local_mode_check:
                self.local_mode_check.setChecked(self.local_mode_enabled)
            if self.local_framerate_slider:
                self.local_framerate_slider.setValue(self.local_player.framerate)
            if self.loop_playback_check:
                self.loop_playback_check.setChecked(self.local_player.loop)
            if self.folder_path_edit:
                self.folder_path_edit.setText(folder_path)

            self.local_player.folder_path = folder_path

            logging.info(f"加载本地图像模式设置: 启用={self.local_mode_enabled}, 帧率={self.local_player.framerate}, 循环={self.local_player.loop}")

            # 触发模式变更信号，通知主窗口和其他组件
            if self.local_mode_enabled:
                self.signal_local_mode_changed.emit(True)

        except Exception as e:
            logging.error(f"加载本地图像模式设置时发生错误: {e}")

    def save_local_mode_settings(self):
        """保存本地图像模式的配置"""
        try:
            # 获取当前设置
            enabled = self.local_mode_enabled
            folder_path = self.folder_path_edit.text() if self.folder_path_edit else ""
            framerate = self.local_framerate_slider.value() if self.local_framerate_slider else 15
            loop = self.loop_playback_check.isChecked() if self.loop_playback_check else True
            
            # 创建配置字典
            config_path = os.path.join(os.path.dirname(os.path.dirname(__file__)), "app_config.json")
            
            # 读取现有配置（如果存在）
            config = {}
            if os.path.exists(config_path):
                try:
                    with open(config_path, 'r', encoding='utf-8') as f:
                        config = json.load(f)
                except json.JSONDecodeError:
                    logging.warning(f"配置文件格式错误: {config_path}")
                    config = {}
                except Exception as e:
                    logging.warning(f"读取配置文件失败: {e}")
                    config = {}
            
            # 更新本地图像模式设置
            if "local_image_mode" not in config:
                config["local_image_mode"] = {}
                
            config["local_image_mode"].update({
                "enabled": enabled,
                "folder_path": folder_path,
                "framerate": framerate,
                "loop": loop
            })
            
            # 保存配置
            with open(config_path, 'w', encoding='utf-8') as f:
                json.dump(config, f, indent=4, ensure_ascii=False)
                
            logging.info(f"已保存本地图像模式设置: enabled={enabled}, folder='{folder_path}', "
                       f"framerate={framerate}, loop={loop}")
                       
            return True
            
        except Exception as e:
            logging.error(f"保存本地图像模式设置失败: {e}")
            return False
    
    def update_local_mode_ui(self):
        """更新本地图像模式UI状态"""
        # 获取当前复选框状态（如果复选框存在）
        enabled = self.local_mode_check.isChecked() if self.local_mode_check else self.local_mode_enabled
        
        # 更新内部状态
        if enabled != self.local_mode_enabled:
            logging.info(f"本地图像模式状态变化: {self.local_mode_enabled} -> {enabled}")
            self.local_mode_enabled = enabled
        
        # 打印日志，帮助调试
        logging.debug(f"更新本地图像模式UI: 启用={enabled}, 按钮状态={self.folder_path_button is not None}")
        
        # 更新相关控件状态
        if self.folder_path_edit:
            self.folder_path_edit.setEnabled(enabled)
            logging.debug(f"文件夹路径编辑框已设置为: {enabled}")
            
        if self.folder_path_button:
            self.folder_path_button.setEnabled(enabled)
            logging.debug(f"文件夹选择按钮已设置为: {enabled}")
            
        if self.local_framerate_slider:
            self.local_framerate_slider.setEnabled(enabled)
            
        if self.loop_playback_check:
            self.loop_playback_check.setEnabled(enabled)
            
        if self.play_button:
            has_folder = bool(self.folder_path_edit and self.folder_path_edit.text())
            self.play_button.setEnabled(enabled and has_folder)
            logging.debug(f"播放按钮已设置为: {enabled and has_folder}, 有文件夹={has_folder}")
            
        if self.stop_button:
            self.stop_button.setEnabled(enabled and self.is_playing)
            
        # 强制更新UI
        if self.parent:
            self.parent.update()
    
    def toggle_local_mode(self, state):
        """切换本地图像模式"""
        # 修复：直接比较整数值，Qt.Checked.value 是 2
        is_checked = (state == 2)  # 或者 state == Qt.Checked.value
        
        # 停止可能正在进行的播放
        if self.is_playing:
            self.stop_local_images()
        
        # 打印详细日志，帮助调试
        logging.info(f"切换本地图像模式: {state} -> {is_checked}")
        
        # 先设置相机管理器的本地模式
        self.camera_manager.set_local_mode(is_checked)
        
        # 更新本地模式状态
        self.local_mode_enabled = is_checked
        
        # 更新UI状态
        self.update_local_mode_ui()
        
        # 如果打开本地模式，关闭相机；如果关闭本地模式，尝试打开之前的相机
        if is_checked:
            # 如果相机正在工作，先关闭它
            if self.camera_manager.isOpen and not self.camera_manager.local_mode:
                self.close_camera()
        else:
            # 如果存在实际相机，尝试打开最后选择的相机
            if self.camera_manager.has_real_camera:
                # 获取当前选择的设备索引
                device_index = self.get_selected_device_index()
                if device_index >= 0:
                    # 关闭虚拟相机
                    if self.camera_manager.isOpen:
                        self.camera_manager.close_device()
                    # 开启实际相机
                    self.open_camera()
        
        # 发送模式变更信号
        self.signal_local_mode_changed.emit(is_checked)
        
        # 保存设置
        self.save_local_mode_settings()
        
        logging.info(f"本地图像模式已{'启用' if is_checked else '禁用'}")
        
        # 刷新设备列表
        self.refresh_devices()
    
    def choose_image_folder(self):
        """选择图像文件夹"""
        # 检查复选框状态而不是类属性
        is_enabled = self.local_mode_check.isChecked() if self.local_mode_check else False
        
        # 即使控件状态可能不对，也尝试打开文件选择对话框
        logging.info(f"选择图像文件夹: 本地模式启用={is_enabled}, 按钮状态={self.folder_path_button is not None}")
        
        # 获取当前设置的文件夹路径作为初始目录
        current_path = self.folder_path_edit.text() if self.folder_path_edit else ""
        if not current_path or not os.path.isdir(current_path):
            current_path = os.path.expanduser("~")  # 默认使用用户主目录
        
        # 打开文件夹选择对话框
        folder_path = QFileDialog.getExistingDirectory(self.parent, "选择图像文件夹", current_path)
        
        if folder_path:
            logging.info(f"已选择图像文件夹: {folder_path}")
            
            # 更新路径显示
            if self.folder_path_edit:
                self.folder_path_edit.setText(folder_path)
            
            # 设置到本地播放器
            if self.local_player:
                self.local_player.set_folder(folder_path)
            
            # 更新UI状态
            self.update_local_mode_ui()
            
            # 保存设置
            self.save_local_mode_settings()
        else:
            logging.info("未选择任何文件夹")
    
    def update_local_framerate_value(self, value):
        """更新本地模式帧率显示"""
        if self.local_framerate_value:
            self.local_framerate_value.setText(f"{value} fps")
        
        # 更新本地播放器帧率
        if self.local_player:
            self.local_player.set_framerate(value)
    
    def update_loop_playback(self, state):
        """更新循环播放设置"""
        loop = (state == Qt.Checked)
        
        # 更新本地播放器设置
        if self.local_player:
            self.local_player.set_loop(loop)
        
        # 保存设置
        self.save_local_mode_settings()
    
    def play_local_images(self):
        """播放本地图像序列"""
        if not self.local_mode_enabled:
            return
        
        if self.is_playing:
            # 如果正在播放，则暂停/恢复
            if self.local_player:
                if self.local_player.is_paused:
                    self.local_player.resume_playback()
                    self.play_button.setText("暂停")
                else:
                    self.local_player.pause_playback()
                    self.play_button.setText("继续")
        else:
            # 开始播放
            if self.local_player:
                folder_path = self.folder_path_edit.text() if self.folder_path_edit else ""
                
                if not folder_path:
                    QMessageBox.warning(self.parent, "错误", "请先选择图像文件夹")
                    return
                
                # 设置播放参数
                framerate = self.local_framerate_slider.value() if self.local_framerate_slider else 15
                loop = self.loop_playback_check.isChecked() if self.loop_playback_check else True
                
                self.local_player.set_framerate(framerate)
                self.local_player.set_loop(loop)
                
                # 确保文件夹路径已设置
                if not self.local_player.folder_path:
                    self.local_player.set_folder(folder_path)
                
                # 开始播放
                if self.local_player.start_playback():
                    self.is_playing = True
                    self.play_button.setText("暂停")
                    self.stop_button.setEnabled(True)
                    
                    # 更新预览状态
                    if self.preview_status:
                        self.preview_status.setText("播放中...")
                    
                    # 关键修复：发送信号通知主窗口更新UI，显示相机画面
                    logging.warning("====> 开始播放本地图像序列，发送信号通知主窗口更新UI")
                    # 先确保本地模式已启用
                    self.camera_manager.set_local_mode(True)
                    # 发送信号，通知主窗口更新UI
                    self.signal_local_mode_changed.emit(True)
                    
                    logging.info(f"开始播放本地图像序列，帧率={framerate} fps，循环={loop}")
    
    def stop_local_images(self):
        """停止播放本地图像序列"""
        if self.local_player and self.is_playing:
            self.local_player.stop_playback()
            self.is_playing = False
            self.play_button.setText("播放")
            self.stop_button.setEnabled(False)
            
            # 更新预览状态
            if self.preview_status:
                self.preview_status.setText("已停止")
            
            logging.info("停止播放本地图像序列")
    
    def handle_local_player_status(self, message):
        """处理本地播放器状态消息"""
        if self.preview_status:
            self.preview_status.setText(message)
    
    def handle_local_player_error(self, message):
        """处理本地播放器错误消息"""
        logging.error(f"本地图像播放器错误: {message}")
        
        if self.preview_status:
            self.preview_status.setText(f"错误: {message}")
            
        QMessageBox.warning(self.parent, "错误", message)
    
    def handle_local_player_progress(self, current, total):
        """处理本地播放器进度消息"""
        if self.preview_status:
            self.preview_status.setText(f"播放中... {current}/{total}")
    
    def handle_local_player_frame(self, frame):
        """处理本地播放器帧准备好消息"""
        # 确保本地模式已启用
        if not self.local_mode_enabled or not self.local_player:
            return
            
        # 添加明显的调试日志
        logging.warning(f"====> 接收到本地图像帧: {frame.shape if frame is not None else 'None'}")
            
        # 获取窗口ID (默认方法)
        window_id = int(self.preview_frame.winId()) if self.preview_frame else 0
        
        # 将帧传递给camera_manager处理
        logging.warning(f"====> 传递给camera_manager处理，窗口ID: {window_id}")
        success = self.camera_manager.handle_local_frame(frame, window_id)
        if not success:
            logging.error("相机管理器处理本地图像帧失败")
        
        # 修复：查找主窗口的改进方式
        try:
            # 获取应用实例
            from PySide6.QtWidgets import QApplication
            app = QApplication.instance()
            
            # 查找主窗口
            from widgets.main_window import MainWindow
            main_window = None
            
            # 遍历所有顶层窗口
            for window in app.topLevelWidgets():
                logging.warning(f"====> 找到顶层窗口: {window.__class__.__name__}")
                if isinstance(window, MainWindow):
                    main_window = window
                    logging.warning("====> 找到 MainWindow 实例")
                    break
            
            # 如果通过顶层窗口没找到，尝试通过父窗口查找
            if not main_window and hasattr(self, 'parent') and self.parent:
                parent = self.parent
                # 循环查找父窗口，直到找到 MainWindow 或达到顶层
                while parent:
                    logging.warning(f"====> 检查父窗口: {parent.__class__.__name__}")
                    if isinstance(parent, MainWindow):
                        main_window = parent
                        logging.warning("====> 在父窗口链中找到 MainWindow 实例")
                        break
                    if hasattr(parent, 'parent'):
                        parent = parent.parent()
                    else:
                        break
            
            # 如果找到了主窗口，更新相机显示
            if main_window:
                logging.warning(f"====> MainWindow 实例 ID: {id(main_window)}")
                
                # 添加详细调试日志，查看主窗口的属性
                logging.warning(f"====> MainWindow 的属性: {dir(main_window)}")
                
                # 检查 camera_display 是否存在
                has_camera_display = hasattr(main_window, 'camera_display')
                logging.warning(f"====> MainWindow 是否有 camera_display 属性: {has_camera_display}")
                
                if has_camera_display:
                    camera_display = main_window.camera_display
                    logging.warning(f"====> camera_display 对象 ID: {id(camera_display) if camera_display else 'None'}")
                    logging.warning(f"====> camera_display 是否为 None: {camera_display is None}")
                
                # 检查 material_placeholder 是否存在
                has_placeholder = hasattr(main_window, 'material_placeholder')
                logging.warning(f"====> MainWindow 是否有 material_placeholder 属性: {has_placeholder}")
                
                # 检查camera_enabled状态
                current_camera_enabled = getattr(main_window, 'camera_enabled', False)
                logging.warning(f"====> 当前 camera_enabled 状态: {current_camera_enabled}")
                
                # 关键修复：确保camera_enabled为True
                if hasattr(main_window, 'camera_enabled'):
                    logging.warning("====> 设置 camera_enabled 为 True")
                    main_window.camera_enabled = True
                
                # 检查是否已调用过 init_camera_display 方法
                if hasattr(main_window, 'init_camera_display'):
                    logging.warning("====> MainWindow 有 init_camera_display 方法")
                    # 尝试再次调用初始化方法
                    logging.warning("====> 尝试再次调用 init_camera_display 方法")
                    main_window.init_camera_display()
                else:
                    logging.error("MainWindow 没有 init_camera_display 方法")
                
                # 再次检查camera_display是否已创建
                if hasattr(main_window, 'camera_display') and main_window.camera_display:
                    logging.warning("====> init_camera_display后，camera_display已创建")
                    # 确保相机显示组件可见
                    main_window.camera_display.setVisible(True)
                    main_window.camera_display.raise_()
                    
                    # 隐藏占位符
                    if hasattr(main_window, 'material_placeholder') and main_window.material_placeholder:
                        main_window.material_placeholder.setVisible(False)
                    
                    # 调用update_local_frame方法
                    if hasattr(main_window.camera_display, 'update_local_frame'):
                        main_window.camera_display.update_local_frame(frame)
                        logging.warning("====> 直接调用camera_display.update_local_frame成功")
                    else:
                        logging.error("camera_display没有update_local_frame方法")
                    
                    # 强制更新UI
                    main_window.update_camera_ui(True)
                else:
                    logging.error("MainWindow中没有找到camera_display组件或它仍然是None")
            else:
                logging.error("未找到MainWindow实例")
                
        except Exception as e:
            logging.error(f"尝试直接更新主窗口相机组件失败: {str(e)}")
            import traceback
            logging.error(traceback.format_exc())
            
        # 保留原来的第二种方法作为备选
        try:
            # 尝试使用Qt方式更新图像
            if not success:
                from PySide6.QtGui import QImage, QPixmap
                
                # 将OpenCV的RGB图像转换为Qt的QImage
                height, width, channel = frame.shape
                bytes_per_line = channel * width
                q_img = QImage(frame.data, width, height, bytes_per_line, QImage.Format_RGB888)
                
                # 创建QPixmap
                pixmap = QPixmap.fromImage(q_img)
                
                # 获取主窗口实例
                from PySide6.QtWidgets import QApplication
                app = QApplication.instance()
                from widgets.main_window import MainWindow
                
                for window in app.topLevelWidgets():
                    if isinstance(window, MainWindow):
                        main_window = window
                        # 确保camera_enabled为True
                        if hasattr(main_window, 'camera_enabled'):
                            main_window.camera_enabled = True
                            
                        # 尝试初始化相机显示
                        if hasattr(main_window, 'init_camera_display'):
                            main_window.init_camera_display()
                            
                        if hasattr(main_window, 'camera_display') and main_window.camera_display:
                            # 确保相机显示组件可见
                            main_window.camera_display.setVisible(True)
                            main_window.camera_display.raise_()
                            
                            # 给相机显示组件设置属性，强制更新
                            main_window.camera_display._current_pixmap = pixmap
                            main_window.camera_display.update()  # 强制重绘
                            
                            logging.warning("====> 通过设置_current_pixmap并强制更新成功")
                            
                            # 隐藏占位符
                            if hasattr(main_window, 'material_placeholder'):
                                main_window.material_placeholder.setVisible(False)
                                
                            # 强制更新UI
                            main_window.update_camera_ui(True)
                            return
        except Exception as e:
            logging.error(f"尝试使用Qt方式更新图像失败: {e}")
            import traceback
            logging.error(traceback.format_exc())
    
    def handle_local_player_completed(self):
        """处理本地播放器播放完成消息"""
        if not self.local_player.loop:
            self.is_playing = False
            self.play_button.setText("播放")
            
            # 更新预览状态
            if self.preview_status:
                self.preview_status.setText("播放完成")