python/PyMaiHak/PyHex.py

# -*- coding: utf-8 -*-
"""
Created on Thu Sep 26 13:44:27 2024

@author: WANGXIBAO
"""
from PyQt5 import QtWidgets,QtGui
import sys,socket, os,datetime
from configparser import ConfigParser
from PyHexUI import Ui_Form
from PyQt5.QtCore import QTimer

class PyHexQT(QtWidgets.QWidget,Ui_Form):
    def __init__(self):
        super(PyHexQT, self).__init__()        
        self.setupUi(self)
        self.udp = "pyHex.ini"  # 配置文件默认路径
        # 检测配置文件
        self.CheckCfgIniData()
        
        # 从配置文件中读取IP和端口
        config = ConfigParser()
        config.read(self.udp, encoding='utf-8')
        self.IP = config.get('NetConfig', 'IP')
        self.port = config.get('NetConfig', 'port')
        self.bytes_start = int(config.get('NetConfig', 'bytes_start'))
        self.bytes_length = int(config.get('NetConfig', 'bytes_length'))
        self.num_scale = int(config.get('NetConfig', 'num_scale'))
        self.log_time = int(config.get('NetConfig', 'log_time'))
        windowTitle = config.get('NetConfig', 'window_title')
        self.setWindowTitle(windowTitle)
        
        self.log_count = 0
        self.log_buffer = []
        # 定时器接收数据
        self.timer = QTimer()
        self.timer.timeout.connect(self.data_receive)
               
        
        self.main()
        
    #%% 重写关闭按钮
    def closeEvent(self, event):
        #关闭界面前保存快捷区域的命令和名称
        if hasattr(self, 'udp_socket'):
            self.timer.stop()
            self.udp_socket.close()
            print("关闭网络连接")
        # 调用父类的关闭事件处理函数
        super().closeEvent(event)
            
    def main(self):

        udp_addr = (self.IP, int(self.port))        
        self.udp_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
        print("绑定地址", udp_addr)
        # 绑定端口
        try:
            self.udp_socket.bind(udp_addr)
            print("开始监听。。。")
            self.udp_socket.setblocking(False) #设置非阻塞
        except Exception as e:
            print(f"Error reading configuration: {e}")
            return None
        # 等待接收对方发送的数据
        # 打开串口接收定时器，周期为1ms
        self.timer.start(20)
        
        
    def data_receive(self):
        try:
            recv_data = self.udp_socket.recvfrom(1024)  # 1024表示本次接收的最大字节数
            # 打印接收到的数据
            line_utf8 = recv_data[0].hex()
            
            out_s = ''
            out_s = ' '.join(['{:02X}'.format(b) for b in bytes.fromhex(line_utf8)])
            
            # %% 在界面上更新
            self.add_line_to_textedit(out_s)
            # 获取到text光标
            textCursor = self.textEdit.textCursor()
            # 滚动到底部
            textCursor.movePosition(textCursor.End)
            # 设置光标到text中去
            self.textEdit.setTextCursor(textCursor)
            
            # self.textEdit.insertPlainText(out_s)
            # self.textEdit.insertPlainText('\r\n')
            
            print("[From %s:%d]:%s" % (recv_data[1][0], recv_data[1][1], out_s))
            
            #%%保存数据到log
            sav_str = datetime.datetime.now().strftime("%Y-%m-%dT%H:%M:%S.%f")[:23]  +" " +out_s +"\r\n"
            #将数据加入缓存区域
            self.log_buffer.append(sav_str)
            self.log_count +=1
            #print(self.log_count)
            if self.log_count>self.log_time:
                self.data_save()

            #%% 数据转化，并显示在框中

            num_hex_str = line_utf8[self.bytes_start*2:(self.bytes_start*2 +self.bytes_length*2 )]
            if num_hex_str:                
                num_out = int(num_hex_str,16)/self.num_scale
                self.textBrowser.clear()
                # 设置字体和颜色
                char_format = QtGui.QTextCharFormat()
                char_format.setFont(QtGui.QFont("SimSun", 28))  # 设置字体为 SimSun，字号为 28
                char_format.setForeground(QtGui.QBrush(QtGui.QColor("red")))  # 设置文字颜色为红色
                # 创建 QTextCursor 对象
                cursor = self.textBrowser.textCursor()            # 插入带有格式的文本
                cursor.insertText(str(num_out), char_format)
            
        except socket.error as e:
            #print(f"Socket error: {e}")
            pass
            
    def data_save(self):
        sav_name = datetime.datetime.now().strftime("%Y-%m-%d")+'.log'
        with open(sav_name, mode='a', newline='',encoding='utf-8', errors='replace') as file:
            file.writelines(self.log_buffer)
        self.log_buffer.clear()
        self.log_count = 0
        
    def add_line_to_textedit(self, new_line):
        # 获取当前文本并按行分割
        current_lines = self.textEdit.toPlainText().splitlines()    
        # 添加新的行到列表中
        current_lines.append(new_line)    
        # 如果行数超过100，则删除最早的行，直到剩下100行
        if len(current_lines) > 100:
            current_lines = current_lines[-100:]  # 只保留最新的100行    
        # 将更新后的行列表转换回字符串并设置为textEdit的内容
        self.textEdit.setPlainText('\n'.join(current_lines))
        
    
    def CheckCfgIniData(self):
        if not os.path.exists(self.udp):
            config = ConfigParser()
            config.add_section('NetConfig')
            config.set('NetConfig', 'IP', '127.0.0.1') 
            config.set('NetConfig', 'port', '9000')
            config.set('NetConfig', 'bytes_start', '3')
            config.set('NetConfig', 'bytes_length', '4')
            config.set('NetConfig', 'num_scale', '1000')
            config.set('NetConfig', 'log_time', '1')
            config.set('NetConfig', 'window_title', 'Hex数据解调工具')
            with open(self.udp, 'w', encoding='utf-8') as f:
                config.write(f)
                
        config = ConfigParser()
        try:
            config.read(self.udp, encoding='utf-8')
            IP = config.get('NetConfig', 'IP')
            port = config.get('NetConfig', 'port')
            print(f"Configuration read successfully: {IP}, {port}")
            bytes_start = int(config.get('NetConfig', 'bytes_start'))
            bytes_length = int(config.get('NetConfig', 'bytes_length'))
            num_scale = int(config.get('NetConfig', 'num_scale'))
            
        except Exception as e:
            print(f"Error reading configuration: {e}")

# if __name__ == '__main__':
#     main()
#     Ui_Form()
if __name__ == '__main__':
    app = QtWidgets.QApplication(sys.argv)
    myshow = PyHexQT()
    myshow.show()
    sys.exit(app.exec_())