jiateng_ws/widgets/serial_settings_widget.py

import os
import json
import logging
import serial.tools.list_ports
import time
from PySide6.QtWidgets import QMessageBox
from ui.serial_settings_ui import SerialSettingsUI
from utils.config_loader import ConfigLoader
from utils.serial_manager import SerialManager

class SerialSettingsWidget(SerialSettingsUI):
    """串口设置组件"""
    
    def __init__(self, parent=None):
        super().__init__(parent)
        self.config = ConfigLoader.get_instance()
        self.serial_manager = SerialManager()
        
        # 连接信号
        self.init_connections()
        
        # 加载设置
        self.load_settings()
        
    def init_connections(self):
        """初始化信号连接"""
        # 米电阻串口
        self.mdz_refresh_btn.clicked.connect(self.refresh_ports)
        self.test_mdz_btn.clicked.connect(self.test_mdz_port)
        
        # 线径串口
        self.xj_refresh_btn.clicked.connect(self.refresh_ports)
        self.test_xj_btn.clicked.connect(self.test_xj_port)
        
        # 扫码器串口
        self.scanner_refresh_btn.clicked.connect(self.refresh_ports)
        self.test_scanner_btn.clicked.connect(self.test_scanner_port)
        
        # 保存按钮
        self.save_btn.clicked.connect(self.save_settings)
        
        # 初始化时刷新串口列表
        self.refresh_ports()
        
        # 加载设置
        self.load_settings()
        
    def refresh_ports(self):
        """刷新串口列表"""
        try:
            # 保存当前选择
            current_mdz_port = self.mdz_port_combo.currentData()
            current_xj_port = self.xj_port_combo.currentData()
            current_scanner_port = self.scanner_port_combo.currentData()
            
            # 清空列表
            self.mdz_port_combo.clear()
            self.xj_port_combo.clear()
            self.scanner_port_combo.clear()
            
            # 添加"不使用"选项
            self.mdz_port_combo.addItem("不使用", "")
            self.xj_port_combo.addItem("不使用", "")
            self.scanner_port_combo.addItem("不使用", "")
            
            # 获取可用串口
            ports = list(serial.tools.list_ports.comports())
            
            for port in ports:
                port_name = port.device
                port_desc = f"{port_name} ({port.description})"
                
                # 添加到米电阻下拉框
                self.mdz_port_combo.addItem(port_desc, port_name)
                
                # 添加到线径下拉框
                self.xj_port_combo.addItem(port_desc, port_name)
                
                # 添加到扫码器下拉框
                self.scanner_port_combo.addItem(port_desc, port_name)
            
            # 恢复之前的选择
            if current_mdz_port:
                index = self.mdz_port_combo.findData(current_mdz_port)
                if index >= 0:
                    self.mdz_port_combo.setCurrentIndex(index)
            else:
                # 如果之前没有选择，则设为"不使用"
                self.mdz_port_combo.setCurrentIndex(0)
            
            if current_xj_port:
                index = self.xj_port_combo.findData(current_xj_port)
                if index >= 0:
                    self.xj_port_combo.setCurrentIndex(index)
            else:
                # 如果之前没有选择，则设为"不使用"
                self.xj_port_combo.setCurrentIndex(0)
            
            if current_scanner_port:
                index = self.scanner_port_combo.findData(current_scanner_port)
                if index >= 0:
                    self.scanner_port_combo.setCurrentIndex(index)
            else:
                # 如果之前没有选择，则设为"不使用"
                self.scanner_port_combo.setCurrentIndex(0)
            
            logging.info(f"已刷新串口列表，找到 {len(ports)} 个串口")
        except Exception as e:
            logging.error(f"刷新串口列表失败: {e}")
            QMessageBox.warning(self, "刷新失败", f"刷新串口列表失败: {e}")
    
    def load_settings(self):
        """加载设置"""
        try:
            # 加载全局设置
            enable_serial = self.config.get_value('app.features.enable_serial_ports', False)
            enable_keyboard = self.config.get_value('app.features.enable_keyboard_listener', False)
            
            self.enable_serial_checkbox.setChecked(enable_serial)
            self.enable_keyboard_checkbox.setChecked(enable_keyboard)
            
            # 加载米电阻设置
            mdz_config = self.config.get_config('mdz')
            if mdz_config:
                # 设置串口
                mdz_port = mdz_config.get('ser', '')
                index = self.mdz_port_combo.findData(mdz_port)
                if index >= 0:
                    self.mdz_port_combo.setCurrentIndex(index)
                
                # 设置波特率
                mdz_baud = str(mdz_config.get('port', '9600'))
                index = self.mdz_baud_combo.findText(mdz_baud)
                if index >= 0:
                    self.mdz_baud_combo.setCurrentIndex(index)
                
                # 设置数据位
                mdz_data_bits = str(mdz_config.get('data_bits', '8'))
                index = self.mdz_data_bits_combo.findText(mdz_data_bits)
                if index >= 0:
                    self.mdz_data_bits_combo.setCurrentIndex(index)
                
                # 设置停止位
                mdz_stop_bits = str(mdz_config.get('stop_bits', '1'))
                index = self.mdz_stop_bits_combo.findText(mdz_stop_bits)
                if index >= 0:
                    self.mdz_stop_bits_combo.setCurrentIndex(index)
                
                # 设置校验位
                mdz_parity = mdz_config.get('parity', 'N')
                index = self.mdz_parity_combo.findData(mdz_parity)
                if index >= 0:
                    self.mdz_parity_combo.setCurrentIndex(index)
                
                # 设置查询指令
                mdz_query_cmd = mdz_config.get('query_cmd', '01 03 00 01 00 07 55 C8')
                self.mdz_query_cmd.setText(mdz_query_cmd)
                
                # 设置查询间隔
                mdz_query_interval = mdz_config.get('query_interval', 5)
                self.mdz_query_interval.setValue(mdz_query_interval)
            
            # 加载线径设置
            xj_config = self.config.get_config('xj')
            if xj_config:
                # 设置串口
                xj_port = xj_config.get('ser', '')
                index = self.xj_port_combo.findData(xj_port)
                if index >= 0:
                    self.xj_port_combo.setCurrentIndex(index)
                
                # 设置波特率
                xj_baud = str(xj_config.get('port', '9600'))
                index = self.xj_baud_combo.findText(xj_baud)
                if index >= 0:
                    self.xj_baud_combo.setCurrentIndex(index)
                
                # 设置数据位
                xj_data_bits = str(xj_config.get('data_bits', '8'))
                index = self.xj_data_bits_combo.findText(xj_data_bits)
                if index >= 0:
                    self.xj_data_bits_combo.setCurrentIndex(index)
                
                # 设置停止位
                xj_stop_bits = str(xj_config.get('stop_bits', '1'))
                index = self.xj_stop_bits_combo.findText(xj_stop_bits)
                if index >= 0:
                    self.xj_stop_bits_combo.setCurrentIndex(index)
                
                # 设置校验位
                xj_parity = xj_config.get('parity', 'N')
                index = self.xj_parity_combo.findData(xj_parity)
                if index >= 0:
                    self.xj_parity_combo.setCurrentIndex(index)
            
            # 加载扫码器设置
            scanner_config = self.config.get_config('scanner')
            if scanner_config:
                # 设置串口
                scanner_port = scanner_config.get('ser', '')
                index = self.scanner_port_combo.findData(scanner_port)
                if index >= 0:
                    self.scanner_port_combo.setCurrentIndex(index)
                
                # 设置波特率
                scanner_baud = str(scanner_config.get('port', '9600'))
                index = self.scanner_baud_combo.findText(scanner_baud)
                if index >= 0:
                    self.scanner_baud_combo.setCurrentIndex(index)
                
                # 设置数据位
                scanner_data_bits = str(scanner_config.get('data_bits', '8'))
                index = self.scanner_data_bits_combo.findText(scanner_data_bits)
                if index >= 0:
                    self.scanner_data_bits_combo.setCurrentIndex(index)
                
                # 设置停止位
                scanner_stop_bits = str(scanner_config.get('stop_bits', '1'))
                index = self.scanner_stop_bits_combo.findText(scanner_stop_bits)
                if index >= 0:
                    self.scanner_stop_bits_combo.setCurrentIndex(index)
                
                # 设置校验位
                scanner_parity = scanner_config.get('parity', 'N')
                index = self.scanner_parity_combo.findData(scanner_parity)
                if index >= 0:
                    self.scanner_parity_combo.setCurrentIndex(index)
            
            logging.info("已加载串口设置")
        except Exception as e:
            logging.error(f"加载串口设置失败: {e}")
            QMessageBox.warning(self, "加载失败", f"加载串口设置失败: {e}")
    
    def save_settings(self):
        """保存设置"""
        try:
            # 保存全局设置
            enable_serial = self.enable_serial_checkbox.isChecked()
            enable_keyboard = self.enable_keyboard_checkbox.isChecked()
            
            self.config.set_value('app.features.enable_serial_ports', enable_serial)
            self.config.set_value('app.features.enable_keyboard_listener', enable_keyboard)
            
            # 保存米电阻设置
            mdz_port = self.mdz_port_combo.currentData()
            mdz_baud = int(self.mdz_baud_combo.currentText())
            mdz_data_bits = int(self.mdz_data_bits_combo.currentText())
            mdz_stop_bits = float(self.mdz_stop_bits_combo.currentText())
            mdz_parity = self.mdz_parity_combo.currentData()
            mdz_query_cmd = self.mdz_query_cmd.text().strip()
            mdz_query_interval = self.mdz_query_interval.value()
            
            mdz_config = {
                'port': mdz_baud,
                'data_bits': mdz_data_bits,
                'stop_bits': mdz_stop_bits,
                'parity': mdz_parity,
                'query_cmd': mdz_query_cmd,
                'query_interval': mdz_query_interval
            }
            
            # 只有当用户选择了串口时才保存串口配置
            if mdz_port:
                mdz_config['ser'] = mdz_port
            
            self.config.set_config('mdz', mdz_config)
            
            # 保存线径设置
            xj_port = self.xj_port_combo.currentData()
            xj_baud = int(self.xj_baud_combo.currentText())
            xj_data_bits = int(self.xj_data_bits_combo.currentText())
            xj_stop_bits = float(self.xj_stop_bits_combo.currentText())
            xj_parity = self.xj_parity_combo.currentData()
            
            xj_config = {
                'port': xj_baud,
                'data_bits': xj_data_bits,
                'stop_bits': xj_stop_bits,
                'parity': xj_parity
            }
            
            # 只有当用户选择了串口时才保存串口配置
            if xj_port:
                xj_config['ser'] = xj_port
            
            self.config.set_config('xj', xj_config)
            
            # 保存扫码器设置
            scanner_port = self.scanner_port_combo.currentData()
            scanner_baud = int(self.scanner_baud_combo.currentText())
            scanner_data_bits = int(self.scanner_data_bits_combo.currentText())
            scanner_stop_bits = float(self.scanner_stop_bits_combo.currentText())
            scanner_parity = self.scanner_parity_combo.currentData()
            
            scanner_config = {
                'port': scanner_baud,
                'data_bits': scanner_data_bits,
                'stop_bits': scanner_stop_bits,
                'parity': scanner_parity
            }
            
            # 只有当用户选择了串口时才保存串口配置
            if scanner_port:
                scanner_config['ser'] = scanner_port
            
            self.config.set_config('scanner', scanner_config)
            
            # 发送设置变更信号
            self.settings_changed.emit()
            
            QMessageBox.information(self, "保存成功", "串口设置已保存")
            
        except Exception as e:
            logging.error(f"保存串口设置失败: {e}")
            QMessageBox.critical(self, "保存失败", f"保存串口设置失败: {e}")
    
    def test_mdz_port(self):
        """测试米电阻串口"""
        try:
            port = self.mdz_port_combo.currentData()
            
            if not port:
                QMessageBox.warning(self, "测试失败", "请先选择串口，当前设置为\"不使用\"")
                return
                
            baud = int(self.mdz_baud_combo.currentText())
            data_bits = int(self.mdz_data_bits_combo.currentText())
            stop_bits = float(self.mdz_stop_bits_combo.currentText())
            parity = self.mdz_parity_combo.currentData()
            
            # 关闭可能已经打开的串口
            if self.serial_manager.is_port_open(port):
                self.serial_manager.close_port(port)
            
            # 尝试打开串口
            success = self.serial_manager.open_port(
                port, 'mdz', baud, data_bits, stop_bits, parity, 1.0
            )
            
            if success:
                # 尝试发送查询指令
                query_cmd = self.mdz_query_cmd.text()
                if query_cmd:
                    try:
                        # 转换查询指令为字节
                        cmd_bytes = bytes.fromhex(query_cmd.replace(' ', ''))
                        self.serial_manager.write_data(port, cmd_bytes)
                        time.sleep(0.1)  # 等待响应
                        
                        # 读取响应
                        response = self.serial_manager.read_data(port)
                        if response:
                            # 将字节转换为十六进制字符串
                            hex_str = ' '.join(f'{b:02X}' for b in response)
                            QMessageBox.information(self, "测试成功", f"串口打开成功，收到响应:\n{hex_str}")
                        else:
                            QMessageBox.information(self, "测试成功", "串口打开成功，但未收到响应")
                    except Exception as e:
                        QMessageBox.warning(self, "测试结果", f"串口打开成功，但发送指令失败: {e}")
                else:
                    QMessageBox.information(self, "测试成功", "串口打开成功")
                
                # 关闭串口
                self.serial_manager.close_port(port)
            else:
                QMessageBox.critical(self, "测试失败", f"无法打开串口 {port}")
        
        except Exception as e:
            logging.error(f"测试米电阻串口失败: {e}")
            QMessageBox.critical(self, "测试失败", f"测试米电阻串口失败: {e}")
    
    def test_xj_port(self):
        """测试线径串口"""
        try:
            port = self.xj_port_combo.currentData()
            
            if not port:
                QMessageBox.warning(self, "测试失败", "请先选择串口，当前设置为\"不使用\"")
                return
                
            baud = int(self.xj_baud_combo.currentText())
            data_bits = int(self.xj_data_bits_combo.currentText())
            stop_bits = float(self.xj_stop_bits_combo.currentText())
            parity = self.xj_parity_combo.currentData()
            
            # 关闭可能已经打开的串口
            if self.serial_manager.is_port_open(port):
                self.serial_manager.close_port(port)
            
            # 尝试打开串口
            success = self.serial_manager.open_port(
                port, 'xj', baud, data_bits, stop_bits, parity, 1.0
            )
            
            if success:
                QMessageBox.information(self, "测试成功", f"串口 {port} 打开成功")
                
                # 关闭串口
                self.serial_manager.close_port(port)
            else:
                QMessageBox.critical(self, "测试失败", f"无法打开串口 {port}")
        
        except Exception as e:
            logging.error(f"测试线径串口失败: {e}")
            QMessageBox.critical(self, "测试失败", f"测试线径串口失败: {e}")
            
    def test_scanner_port(self):
        """测试扫码器串口"""
        try:
            port = self.scanner_port_combo.currentData()
            
            if not port:
                QMessageBox.warning(self, "测试失败", "请先选择串口，当前设置为\"不使用\"")
                return
                
            baud = int(self.scanner_baud_combo.currentText())
            data_bits = int(self.scanner_data_bits_combo.currentText())
            stop_bits = float(self.scanner_stop_bits_combo.currentText())
            parity = self.scanner_parity_combo.currentData()
            
            # 关闭可能已经打开的串口
            if self.serial_manager.is_port_open(port):
                self.serial_manager.close_port(port)
            
            # 尝试打开串口
            success = self.serial_manager.open_port(
                port, 'scanner', baud, data_bits, stop_bits, parity, 1.0
            )
            
            if success:
                QMessageBox.information(self, "测试成功", f"串口 {port} 打开成功\n请触发扫码器进行扫描测试")
                
                # 尝试读取数据（短暂等待扫码器输入）
                start_time = time.time()
                timeout = 5.0  # 5秒超时
                
                while time.time() - start_time < timeout:
                    response = self.serial_manager.read_data(port)
                    if response:
                        # 尝试将字节解码为字符串
                        try:
                            text = response.decode('utf-8').strip()
                            QMessageBox.information(self, "测试成功", f"收到扫码数据:\n{text}")
                            break
                        except:
                            # 如果解码失败，显示十六进制
                            hex_str = ' '.join(f'{b:02X}' for b in response)
                            QMessageBox.information(self, "测试成功", f"收到扫码数据 (十六进制):\n{hex_str}")
                            break
                    
                    time.sleep(0.1)  # 短暂休眠，减少CPU占用
                
                # 关闭串口
                self.serial_manager.close_port(port)
            else:
                QMessageBox.critical(self, "测试失败", f"无法打开串口 {port}")
        
        except Exception as e:
            logging.error(f"测试扫码器串口失败: {e}")
            QMessageBox.critical(self, "测试失败", f"测试扫码器串口失败: {e}")