pyqt5主界面基本框架

亦凉 2022-09-03 15:12 211阅读 0赞

import sys
    
    from PyQt5.QtGui import QIcon, QContextMenuEvent, QCloseEvent
    from PyQt5.QtWidgets import QApplication, QMainWindow, QAction, qApp, QMenu, QTextEdit, QMessageBox
    
    
    class LoginWidget(QMainWindow):
    
        def __init__(self):
            super().__init__()
            self.init_ui()
    
        def init_ui(self):
            edit = QTextEdit()
            self.setCentralWidget(edit)
            # 状态栏句柄
            status_bar = self.statusBar()
            status_bar.showMessage('启动成功')
    
            # 菜单栏句柄
            menu_bar = self.menuBar()
            file_menu = menu_bar.addMenu('File')
            edit_menu = menu_bar.addMenu('Edit')
    
            # 功能控件一
            exit_action = QAction(QIcon("东吴人寿.png"), "退出", self)
            exit_action.setShortcut('Ctrl+Q')  # 快捷键
            exit_action.setStatusTip('Exit Application')  # 功能提示
            exit_action.triggered.connect(qApp.quit)  # 事件绑定
    
            # 功能控件二
            other_action = QAction("无状态", self)
            other_action.setCheckable(True)
            other_action.setChecked(True)
            other_action.setShortcut('Ctrl+Q')
            other_action.setStatusTip('Exit Application')
    
            # 功能控件绑定到菜单
            file_menu.addAction(exit_action)
            edit_menu.addAction(other_action)
    
            # 子菜单控件
            child_menu = QMenu("子菜单", self)
            child_menu.addAction(exit_action)
    
            # 子菜单绑定要父菜单
            file_menu.addMenu(child_menu)
    
            # 工具栏句柄
            tool_bar = self.addToolBar("Exit")
            tool_bar.addAction(exit_action)
    
            self.setGeometry(600, 300, 600, 600)  # 设置窗口坐标大小
            self.setWindowTitle('窗口标题')
            self.show()
    
        # X窗口事件
        def closeEvent(self, event: QCloseEvent) -> None:
            reply = QMessageBox.question(self, '消息', "确认关闭?", QMessageBox.Yes | QMessageBox.No, QMessageBox.No)
            if reply == QMessageBox.Yes:
                event.accept()
            else:
                event.ignore()
    
        # 右键事件
        def contextMenuEvent(self, event: QContextMenuEvent) -> None:
            q_menu = QMenu(self)
            new = q_menu.addAction("新建")
            open = q_menu.addAction("打开")
            close = q_menu.addAction("关闭")
            exec_ = q_menu.exec_(self.mapToGlobal(event.pos()))
            if exec_ == close:
                qApp.quit()
    
    
    if __name__ == '__main__':
        # 启动程序
        q_application = QApplication(sys.argv)
        # 创建登录窗口
        login_widget = LoginWidget()
        # 销毁程序
        sys.exit(q_application.exec_())