import sys
from PyQt5.Qt import *
class AccountUtilities(object):
# 定义账户信息设置与检查类
user_name = None
user_password = None
@staticmethod
def set_account(user_name, user_password):
AccountUtilities.user_name = user_name
AccountUtilities.user_password = user_password
@staticmethod
def check_account(user_name, user_password):
# 用户名、密码均正确返回 0 ，用户名错误返回 1 ，密码错误返回 2
if user_name != AccountUtilities.user_name:
return 1
if user_password != AccountUtilities.user_password:
return 2
return 0
class AgeValidator(QValidator):
def validate(self, a0: str, a1: int) -> ():
try:
if len(a0) == 0:
return (QValidator.Intermediate, a0, a1)
elif 18 <= int(a0) <= 180:
return (QValidator.Acceptable, a0, a1)
elif 0 < int(a0) < 18:
return (QValidator.Intermediate, a0, a1)
else:
return (QValidator.Invalid, a0, a1)
except:
return (QValidator.Invalid, a0, a1)
def fixup(self, a0: str) -> str:
return "18"
class RegisterWindow(QMainWindow):
# 注册窗口
def __init__(self):
super().__init__()
self.setup_ui()
self.user_action()
def resizeEvent(self, a0) -> None:
# 重写resizeEvent信号处理方法，窗口大小变化时，控件位置跟随变化
window_width = a0.size().width()
window_height = a0.size().height()
self.label_title.move(int(round((window_width - self.label_title.width()) / 2, 0)),
int(round(window_height / 10, 0)))
self.line_edit_user_name.move(int(round((window_width - self.line_edit_user_name.width()) / 2, 0)),
int(round(window_height / 10 * 2.5, 0)))
self.line_edit_user_password.move(int(round((window_width - self.line_edit_user_password.width()) / 2, 0)),
int(round(window_height / 10 * 4, 0)))
self.line_edit_user_age.move(int(round((window_width - self.line_edit_user_password.width()) / 2, 0)),
int(round(window_height / 10 * 5.5, 0)))
self.line_edit_user_tel.move(int(round((window_width - self.line_edit_user_password.width()) / 2, 0)),
int(round(window_height / 10 * 7, 0)))
self.register_button.move(int(round((window_width - self.register_button.width()) / 2, 0)),
int(round(window_height / 10 * 8.5, 0)))
def setup_ui(self):
self.setWindowTitle("注册")
self.resize(300, 400)
self.setMinimumSize(260, 260)
self.label_info()
self.line_edit()
self.push_button()
def label_info(self):
self.label_title = QLabel(self)
self.label_title.setText("请注册！")
self.label_title.resize(80, 30)
def line_edit(self):
self.line_edit_user_name = QLineEdit(self)
# 设置占位字符
self.line_edit_user_name.setPlaceholderText("用户名")
self.line_edit_user_name.resize(150, 30)
self.line_edit_user_name.setMaxLength(8)
# 开启清空按钮
self.line_edit_user_name.setClearButtonEnabled(True)
self.line_edit_user_password = QLineEdit(self)
self.line_edit_user_password.setPlaceholderText("密码")
self.line_edit_user_password.resize(150, 30)
self.line_edit_user_password.setMaxLength(8)
self.line_edit_user_password.setClearButtonEnabled(True)
self.line_edit_user_age = QLineEdit(self)
self.line_edit_user_age.setPlaceholderText("年龄18-180")
# 设置验证器
line_edit_user_age_validator = AgeValidator(self.line_edit_user_age)
self.line_edit_user_age.setValidator(line_edit_user_age_validator)
self.line_edit_user_age.resize(150, 30)
self.line_edit_user_age.setMaxLength(8)
self.line_edit_user_age.setClearButtonEnabled(True)
class LineEditUserTel(QLineEdit):
# 重写焦点事件处理方法，设置掩码
def focusInEvent(self, a0) -> None:
self.setInputMask("9999-99999999")
return super(LineEditUserTel, self).focusInEvent(a0)
def focusOutEvent(self, a0) -> None:
if self.text() == "-":
self.setInputMask("")
return super(LineEditUserTel, self).focusOutEvent(a0)
self.line_edit_user_tel = LineEditUserTel(self)
self.line_edit_user_tel.setPlaceholderText("电话号码")
self.line_edit_user_tel.resize(150, 30)
self.line_edit_user_tel.setMaxLength(13)
self.line_edit_user_tel.setClearButtonEnabled(True)
def push_button(self):
self.register_button = QPushButton(self)
self.register_button.setText("注册")
self.register_button.setToolTip("注册")
def user_action(self):
# 定义密码框显示模式动作
line_edit_user_password_echo_mode = QAction(self.line_edit_user_password)
def line_edit_user_password_echo_mode_switch():
# 密码显示模式切换
if self.line_edit_user_password.echoMode() == QLineEdit.Password:
line_edit_user_password_echo_mode.setIcon(QIcon("echo_mode_text.png"))
self.line_edit_user_password.setEchoMode(QLineEdit.Normal)
else:
line_edit_user_password_echo_mode.setIcon(QIcon("echo_mode_password.png"))
self.line_edit_user_password.setEchoMode(QLineEdit.Password)
# 首次运行即设置密码框显示模式
line_edit_user_password_echo_mode_switch()
# 添加密码框显示模式自定义动作
self.line_edit_user_password.addAction(line_edit_user_password_echo_mode, QLineEdit.TrailingPosition)
# 连接密码框显示模式信号与槽
line_edit_user_password_echo_mode.triggered.connect(line_edit_user_password_echo_mode_switch)
class MainWindow(QMainWindow):
def __init__(self):
super().__init__()
# 设置账户信息
AccountUtilities.set_account("abc", "123")
# self.line_edit_user_account_state = {"line_edit_user_name_state": False, "line_edit_user_password_state": False}
self.setup_ui()
self.user_action()
def resizeEvent(self, a0) -> None:
# 重写resizeEvent信号处理方法，窗口大小变化时，控件位置跟随变化
window_width = a0.size().width()
window_height = a0.size().height()
self.label_title.move(int(round((window_width - self.label_title.width()) / 2, 0)),
int(round(window_height / 10, 0)))
self.line_edit_user_name.move(int(round((window_width - self.line_edit_user_name.width()) / 2, 0)),
int(round(window_height / 10 * 4, 0)))
self.label_user_name_tip.move(self.line_edit_user_name.x(),
int(round(window_height / 10 * 3.4, 0)))
self.line_edit_user_password.move(int(round((window_width - self.line_edit_user_password.width()) / 2, 0)),
int(round(window_height / 10 * 6, 0)))
self.label_user_password_tip.move(self.line_edit_user_password.x(),
int(round(window_height / 10 * 5.4, 0)))
self.login_submit_button.move(
int(round((window_width - self.login_submit_button.width() - self.register_button.width()) / 2, 0)),
int(round(window_height / 10 * 8, 0)))
self.register_button.move(self.login_submit_button.x() + self.login_submit_button.width(),
self.login_submit_button.y())
def setup_ui(self):
# 开启状态栏
self.statusBar()
# 开启What's this提示
self.setWindowFlags(Qt.WindowContextHelpButtonHint | Qt.WindowCloseButtonHint)
self.user_account_list = ["abc", "acd", "bcd", "bde"]
# [*]中的*在setWindowModified(True)时显示
self.setWindowTitle("登录[*]")
self.resize(350, 350)
self.setMinimumSize(260, 260)
self.label_info()
self.line_edit()
self.push_button()
def label_info(self):
self.label_title = QLabel(self)
self.label_title.setText("请登录！")
self.label_title.resize(80, 30)
# 状态栏提示
self.label_title.setStatusTip(f"用户名：{AccountUtilities.user_name} 密码：{AccountUtilities.user_password}")
self.label_user_name_tip = QLabel(self)
self.label_user_name_tip.setText("用户名错误！")
self.label_user_name_tip.adjustSize()
self.label_user_name_tip.setVisible(False)
self.label_user_password_tip = QLabel(self)
self.label_user_password_tip.setText("密码错误！")
self.label_user_password_tip.adjustSize()
self.label_user_password_tip.setVisible(False)
def line_edit(self):
self.line_edit_user_name = QLineEdit(self)
self.line_edit_user_name.resize(150, 30)
self.line_edit_user_name.setPlaceholderText("请输入用户名")
self.line_edit_user_name.setMaxLength(8)
user_account_completer = QCompleter(self.user_account_list, self.line_edit_user_name)
self.line_edit_user_name.setCompleter(user_account_completer)
# What's this提示
self.line_edit_user_name.setWhatsThis("请输入用户名")
self.line_edit_user_password = QLineEdit(self)
self.line_edit_user_password.resize(150, 30)
self.line_edit_user_password.setPlaceholderText("请输入密码")
self.line_edit_user_password.setMaxLength(8)
self.line_edit_user_password.setClearButtonEnabled(True)
# What's this提示
self.line_edit_user_password.setWhatsThis("请输入密码")
def push_button(self):
self.login_submit_button = QPushButton(self)
self.login_submit_button.setText("登录")
# 工具提示
self.login_submit_button.setToolTip("登录")
self.login_submit_button.setEnabled(False)
self.register_button = QPushButton(self)
self.register_button.setText("注册")
self.register_button.setToolTip("注册")
def user_action(self):
# 定义密码框显示模式动作
line_edit_user_password_echo_mode = QAction(self.line_edit_user_password)
def line_edit_user_password_echo_mode_switch():
# 密码显示模式切换
if self.line_edit_user_password.echoMode() == QLineEdit.Password:
line_edit_user_password_echo_mode.setIcon(QIcon("echo_mode_text.png"))
self.line_edit_user_password.setEchoMode(QLineEdit.Normal)
else:
line_edit_user_password_echo_mode.setIcon(QIcon("echo_mode_password.png"))
self.line_edit_user_password.setEchoMode(QLineEdit.Password)
# 首次运行即设置密码框显示模式
line_edit_user_password_echo_mode_switch()
# 添加密码框显示模式自定义动作
self.line_edit_user_password.addAction(line_edit_user_password_echo_mode, QLineEdit.TrailingPosition)
# 连接密码框显示模式信号与槽
line_edit_user_password_echo_mode.triggered.connect(line_edit_user_password_echo_mode_switch)
# !---用户名、密码文本框内容变动时，设置登录按钮可用状态及窗口编辑状态 方法1-----------------
def line_edit_user_account_text_changed():
if self.line_edit_user_name.text() and self.line_edit_user_password.text():
self.login_submit_button.setEnabled(True)
self.setWindowModified(True)
self.label_user_name_tip.setVisible(False)
self.label_user_password_tip.setVisible(False)
elif self.line_edit_user_name.text() or self.line_edit_user_password.text():
if self.line_edit_user_name.text():
self.label_user_name_tip.setVisible(False)
else:
self.label_user_password_tip.setVisible(False)
self.login_submit_button.setEnabled(False)
self.setWindowModified(True)
else:
self.login_submit_button.setEnabled(False)
self.setWindowModified(False)
self.label_title.setText("请登录！")
# 连接用户名、密码文本框内容变动信号与槽
self.line_edit_user_name.textChanged.connect(line_edit_user_account_text_changed)
self.line_edit_user_password.textChanged.connect(line_edit_user_account_text_changed)
# ----------------------------------------------------------------
# # !---用户名、密码文本框内容变动时，设置登录按钮可用状态及窗口编辑状态 方法2-----------------
# def line_edit_user_name_text_changed(a0):
# if len(a0) > 0:
# self.line_edit_user_account_state["line_edit_user_name_state"] = True
# else:
# self.line_edit_user_account_state["line_edit_user_name_state"] = False
# self.label_user_name_tip.setVisible(False)
# line_edit_user_account_text_changed()
#
# def line_edit_user_password_text_changed(a0):
# if len(a0) > 0:
# self.line_edit_user_account_state["line_edit_user_password_state"] = True
# else:
# self.line_edit_user_account_state["line_edit_user_password_state"] = False
# self.label_user_password_tip.setVisible(False)
# line_edit_user_account_text_changed()
#
# def line_edit_user_account_text_changed():
# if self.line_edit_user_account_state["line_edit_user_name_state"] \
# and self.line_edit_user_account_state["line_edit_user_password_state"]:
# self.login_submit_button.setEnabled(True)
# self.setWindowModified(True)
# elif self.line_edit_user_account_state["line_edit_user_name_state"] \
# or self.line_edit_user_account_state["line_edit_user_password_state"]:
# self.login_submit_button.setEnabled(False)
# self.setWindowModified(True)
# else:
# self.login_submit_button.setEnabled(False)
# self.setWindowModified(False)
# self.label_title.setText("请登录！")
#
# # 连接用户名、密码文本框内容变动信号与槽
# self.line_edit_user_name.textChanged.connect(line_edit_user_name_text_changed)
# self.line_edit_user_password.textChanged.connect(line_edit_user_password_text_changed)
#
# # ----------------------------------------------------------------
def line_edit_login_submit():
user_name = self.line_edit_user_name.text()
user_password = self.line_edit_user_password.text()
user_account_check_result = AccountUtilities.check_account(user_name, user_password)
if user_account_check_result == 0:
self.label_title.setText("登录成功")
# 用户名错误
elif user_account_check_result == 1:
self.line_edit_user_name.setText("")
self.line_edit_user_password.setText("")
self.label_title.setText("登录失败！")
self.label_user_name_tip.setVisible(True)
self.line_edit_user_name.setFocus()
# 密码错误
elif user_account_check_result == 2:
self.line_edit_user_password.setText("")
self.label_title.setText("登录失败！")
self.label_user_password_tip.setVisible(True)
self.line_edit_user_password.setFocus()
self.login_submit_button.clicked.connect(line_edit_login_submit)
def register_button_clicked():
self.register_window = RegisterWindow()
self.register_window.show()
self.register_button.clicked.connect(register_button_clicked)
if __name__ == '__main__':
app = QApplication(sys.argv)
window = MainWindow()
window.show()
sys.exit(app.exec_())
