2024年5月15日第四十九篇

今天学习了python的图形化界面的写法和matlab的语法，团队作业又进行了一次优化，基本完成了个人任务。

import sys
from PyQt5.QtWidgets import QApplication, QWidget, QVBoxLayout, QPushButton, QCalendarWidget, QTextBrowser, QDialog, QLabel, QLineEdit, QMessageBox
from PyQt5.QtCore import QDate, Qt, QTimer, QDateTime
from cnlunar import Lunar
from datetime import datetime
import mysql.connector

class LoginDialog(QDialog):
    def __init__(self):
        super().__init__()
        self.setWindowTitle("登录")
        layout = QVBoxLayout()

        self.usernameInput = QLineEdit()
        self.usernameInput.setPlaceholderText("请输入用户名")
        layout.addWidget(self.usernameInput)

        self.passwordInput = QLineEdit()
        self.passwordInput.setPlaceholderText("请输入密码")
        self.passwordInput.setEchoMode(QLineEdit.Password)
        layout.addWidget(self.passwordInput)

        self.loginButton = QPushButton("登录")
        self.loginButton.clicked.connect(self.login)
        layout.addWidget(self.loginButton)

        self.setLayout(layout)

    def login(self):
        # 连接到数据库
        try:
            conn = mysql.connector.connect(
                host="localhost",
                user="root",
                password="1234",
                database="loginweb"
            )

            cursor = conn.cursor()

            # 查询数据库中是否存在匹配的用户名和密码
            query = "SELECT * FROM login WHERE username = %s AND password = %s"
            cursor.execute(query, (self.usernameInput.text(), self.passwordInput.text()))

            if cursor.fetchone():
                QMessageBox.information(self, "登录成功", "登录成功！")
                self.accept()  # 验证通过，关闭对话框
            else:
                QMessageBox.warning(self, "登录失败", "用户名或密码错误！")
            cursor.close()
            conn.close()

        except mysql.connector.Error as err:
            QMessageBox.critical(self, "数据库错误", f"数据库连接错误: {err}")

class LunarCalendarWidget(QCalendarWidget):
    def paintCell(self, painter, rect, date):
        # Call the base class paintCell() to ensure proper rendering
        super().paintCell(painter, rect, date)

        # Get the Lunar date
        lunar_date = Lunar(datetime(date.year(), date.month(), date.day())).lunarDayCn

        # Draw the Lunar date within the calendar cell
        painter.drawText(rect, 0x0000, lunar_date)

class CalendarWidget(QWidget):
    def __init__(self):
        super().__init__()
        self.initUI()

    def initUI(self):
        layout = QVBoxLayout()

        self.calendar = LunarCalendarWidget()
        self.calendar.selectionChanged.connect(self.updateDateInfo)
        layout.addWidget(self.calendar)

        self.dateInfo = QTextBrowser()
        layout.addWidget(self.dateInfo)

        self.clock = QTextBrowser()  # Add a QTextBrowser for the clock
        layout.addWidget(self.clock)

        self.showWeekButton = QPushButton("Show Week")
        self.showWeekButton.clicked.connect(self.showWeek)
        layout.addWidget(self.showWeekButton)

        self.resetButton = QPushButton("Reset")
        self.resetButton.clicked.connect(self.resetView)
        layout.addWidget(self.resetButton)

        self.initial_range = None  # Initial display range
        self.saveInitialRange()

        self.setLayout(layout)

        # Start a QTimer to update the clock every second
        self.timer = QTimer(self)
        self.timer.timeout.connect(self.updateClock)
        self.timer.start(1000)

    def updateDateInfo(self):
        selected_date = self.calendar.selectedDate()
        current_datetime = datetime(selected_date.year(), selected_date.month(), selected_date.day())
        lunar = Lunar(current_datetime)

        lunar_info = f"农历: {lunar.lunarYearCn} {lunar.year8Char}[{lunar.chineseYearZodiac}]年 {lunar.lunarMonthCn}{lunar.lunarDayCn}日\n"
        lunar_info += f"今日节日: {lunar.get_legalHolidays()} {lunar.get_otherHolidays()} {lunar.get_otherLunarHolidays()}\n"
        lunar_info += f"八字: {lunar.year8Char} {lunar.month8Char} {lunar.day8Char} {lunar.twohour8Char}\n"
        lunar_info += f"今日节气: {lunar.todaySolarTerms}\n"
        lunar_info += f"季节: {lunar.lunarSeason}\n"
        lunar_info += f"宜: {lunar.goodThing}\n"
        lunar_info += f"忌: {lunar.badThing}\n"

        self.dateInfo.setText(lunar_info)

    def showWeek(self):
        selected_date = self.calendar.selectedDate()
        first_day_of_week = selected_date.addDays(-selected_date.dayOfWeek())
        last_day_of_week = first_day_of_week.addDays(6)
        self.calendar.setDateRange(first_day_of_week, last_day_of_week)

    def resetView(self):
        if self.initial_range:
            self.calendar.setDateRange(*self.initial_range)

    def saveInitialRange(self):
        self.initial_range = (self.calendar.minimumDate(), self.calendar.maximumDate())

    def updateClock(self):
        # Get the current date and time
        current_date_time = QDateTime.currentDateTime().toString(Qt.DefaultLocaleLongDate)
        # Display the current date and time in the clock QTextBrowser
        self.clock.setText(current_date_time)

class MainWindow(QWidget):
    def __init__(self):
        super().__init__()
        self.initUI()

    def initUI(self):
        layout = QVBoxLayout()

        self.calendarWidget = CalendarWidget()
        layout.addWidget(self.calendarWidget)

        self.loginButton = QPushButton("登录")
        self.loginButton.clicked.connect(self.showLoginDialog)
        layout.addWidget(self.loginButton)

        self.weather = QLabel("Weather: 晴")
        layout.addWidget(self.weather)

        self.setLayout(layout)

        self.setWindowTitle('农历日历')
        self.setGeometry(100, 100, 800, 600)

    def showLoginDialog(self):
        login_dialog = LoginDialog()
        if login_dialog.exec_() == QDialog.Accepted:
            self.loginButton.setText("已登录")

if __name__ == '__main__':
    app = QApplication(sys.argv)
    mainWindow = MainWindow()
    mainWindow.show()
    sys.exit(app.exec_())