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"""
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代码功能：一、登录界面与功能实现
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"""
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import sys
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from PyQt5 import QtCore, QtGui, QtWidgets
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from PyQt5.QtWidgets import QApplication, QMainWindow
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from main import MainUi
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from sqls import *
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from db import *
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import Config as C
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# 界面与登录功能的设计与实现
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class Ui_MainWindow(object):
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def setupUi(self, MainWindow):
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MainWindow.setObjectName("MainWindow")
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MainWindow.resize(400, 400)
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self.centralwidget = QtWidgets.QWidget(MainWindow)
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self.centralwidget.setObjectName("centralwidget")
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self.label = QtWidgets.QLabel(self.centralwidget)
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self.label.setGeometry(QtCore.QRect(30, 30, 350, 60))
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sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Preferred, QtWidgets.QSizePolicy.Preferred)
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sizePolicy.setHorizontalStretch(0)
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sizePolicy.setVerticalStretch(0)
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sizePolicy.setHeightForWidth(self.label.sizePolicy().hasHeightForWidth())
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self.label.setSizePolicy(sizePolicy)
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self.label.setMinimumSize(QtCore.QSize(50, 50))
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self.label.setBaseSize(QtCore.QSize(50, 50))
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font = QtGui.QFont()
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font.setFamily("楷体")
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font.setPointSize(27)
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font.setBold(True)
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font.setItalic(False)
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font.setWeight(75)
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self.label.setFont(font)
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self.label.setLayoutDirection(QtCore.Qt.LeftToRight)
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self.label.setAutoFillBackground(False)
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self.label.setMidLineWidth(0)
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self.label.setAlignment(QtCore.Qt.AlignCenter)
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self.label.setWordWrap(False)
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self.label.setIndent(0)
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self.label.setObjectName("label")
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self.lineEdit = QtWidgets.QLineEdit(self.centralwidget)
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self.lineEdit.setGeometry(QtCore.QRect(140, 140, 181, 31))
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font = QtGui.QFont("Microsoft YaHei")
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font.setPointSize(11)
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self.lineEdit.setFont(font)
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self.lineEdit.setInputMask("")
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self.lineEdit.setText("")
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self.lineEdit.setObjectName("lineEdit")
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self.label_2 = QtWidgets.QLabel(self.centralwidget)
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self.label_2.setGeometry(QtCore.QRect(40, 140, 91, 31))
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font = QtGui.QFont("Microsoft YaHei")
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font.setPointSize(11)
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self.label_2.setFont(font)
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self.label_2.setAlignment(QtCore.Qt.AlignRight | QtCore.Qt.AlignTrailing | QtCore.Qt.AlignVCenter)
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self.label_2.setObjectName("label_2")
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self.label_3 = QtWidgets.QLabel(self.centralwidget)
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self.label_3.setGeometry(QtCore.QRect(40, 190, 91, 31))
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font = QtGui.QFont("Microsoft YaHei")
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font.setPointSize(11)
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self.label_3.setFont(font)
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self.label_3.setAlignment(QtCore.Qt.AlignRight | QtCore.Qt.AlignTrailing | QtCore.Qt.AlignVCenter)
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self.label_3.setObjectName("label_3")
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self.lineEdit_2 = QtWidgets.QLineEdit(self.centralwidget)
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self.lineEdit_2.setGeometry(QtCore.QRect(140, 190, 181, 31))
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font = QtGui.QFont("Microsoft YaHei")
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font.setPointSize(11)
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self.lineEdit_2.setFont(font)
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self.lineEdit_2.setInputMask("")
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self.lineEdit_2.setText("")
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self.lineEdit_2.setEchoMode(QtWidgets.QLineEdit.Password)
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self.lineEdit_2.setObjectName("lineEdit_2")
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self.pushButton = QtWidgets.QPushButton(self.centralwidget)
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self.pushButton.setGeometry(QtCore.QRect(120, 280, 160, 40))
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font = QtGui.QFont("Microsoft YaHei")
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font.setPointSize(16)
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self.pushButton.setFont(font)
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self.pushButton.setObjectName("pushButton")
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font = QtGui.QFont("Microsoft YaHei")
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font.setItalic(False)
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font.setPointSize(14)
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self.label_6 = QtWidgets.QLabel(self.centralwidget)
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self.label_6.setGeometry(QtCore.QRect(80, 240, 250, 20))
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self.label_6.setObjectName("label_6")
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self.label_6.setFont(font)
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MainWindow.setCentralWidget(self.centralwidget)
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self.menubar = QtWidgets.QMenuBar(MainWindow)
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self.menubar.setGeometry(QtCore.QRect(0, 0, 640, 23))
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self.menubar.setObjectName("menubar")
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MainWindow.setMenuBar(self.menubar)
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self.statusbar = QtWidgets.QStatusBar(MainWindow)
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self.statusbar.setObjectName("statusbar")
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MainWindow.setStatusBar(self.statusbar)
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self.retranslateUi(MainWindow)
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QtCore.QMetaObject.connectSlotsByName(MainWindow)
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self.centralwidget.setStyleSheet('''
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QLabel#label_6{
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color:red;
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}
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#pushButton{background-color:#2c7adf;color:#fff;border:none;border-radius:4px;}
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#pushButton:hover{background-color:#2c8adf;}
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''')
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self.pushButton.clicked.connect(lambda: self.btn_clicked(MainWindow))
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def retranslateUi(self, MainWindow):
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_translate = QtCore.QCoreApplication.translate
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MainWindow.setWindowTitle(_translate("MainWindow", "Python学生管理系统-管理员登录"))
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self.label.setText(_translate("MainWindow", "Python学生管理系统"))
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self.lineEdit.setPlaceholderText(_translate("MainWindow", "请输入用户名"))
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self.label_2.setText(_translate("MainWindow", "用户名："))
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self.label_3.setText(_translate("MainWindow", "密码："))
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self.lineEdit_2.setPlaceholderText(_translate("MainWindow", "请输入密码"))
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self.pushButton.setText(_translate("MainWindow", "登录"))
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# 管理员登录
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def btn_clicked(self, MainWindow):
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self.label_6.setText("正在登录...")
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self.pushButton.setDisabled(True)
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QApplication.processEvents()
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username = self.lineEdit.text()
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password = self.lineEdit_2.text()
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result = sql_execute(login(username, password))
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if len(result) == 0:
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self.label_6.setText("登录失败：用户名或密码错误")
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self.pushButton.setDisabled(False)
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print(username + "登录失败！")
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else:
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print(username + "登录成功！")
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self.label_6.setText("登录成功！")
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print(result[0])
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C.USER = result[0]
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self.main = MainUi()
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self.main.show()
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C.LOGIN_WINDOW = aw
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MainWindow.hide()
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self.main.setWindowTitle('Python学生管理系统')
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if __name__ == "__main__":
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App = QApplication(sys.argv) # 创建QApplication对象，作为GUI主程序入口
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aw = Ui_MainWindow() # 创建主窗体对象，实例化Ui_MainWindow
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w = QMainWindow() # 实例化QMainWindow类
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aw.setupUi(w) # 主窗体对象调用setupUi方法，对QMainWindow对象进行设置
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w.show() # 显示主窗体
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w.setWindowTitle('Python学生管理系统-管理员登录')
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sys.exit(App.exec_()) # 循环中等待退出程序
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