Qt第三十八章：为QWidget添加右键菜单

旧城等待， 2024-03-31 14:26 84阅读 0赞

#### 例一：为按钮添加右键菜单 ####

class ExampleWidget(QWidget):
        def __init__(self, parent=None):
            super(ExampleWidget, self).__init__(parent)
            self.resize(400, 300)
            self.button = QPushButton(self)
            self.button.setText("右鍵")
    
            def handle_contextMenuEvent(event: PySide6.QtGui.QContextMenuEvent) -> None:
                # 1.创建菜单对象
                menu = QMenu()
                # 2.创建菜单列表
                menu1 = QAction(QIcon("./1.png"), "保存", self)
                menu2 = QAction("退出", self)
                # 3.将菜单列表添加到菜单对象
                menu.addAction(menu1)
                # 4.添加分隔线
                menu.addSeparator()
                menu.addAction(menu2)
                # 5.给菜单添加事件
                menu1.triggered.connect(lambda: print("保存"))
                menu2.triggered.connect(lambda: quit())
                # 6.显示菜单 event.globalPos()获取全局鼠标点击位置
                menu.exec(event.globalPos())
    
            self.button.contextMenuEvent = handle_contextMenuEvent
    
    
    if __name__ == '__main__':
        app = QApplication([])
        main = ExampleWidget()
        main.show()
        app.exec()

#### 例二：为窗口添加右键菜单 ####

class ExampleWidget(QWidget):
        def __init__(self, parent=None):
            super(ExampleWidget, self).__init__(parent)
            self.resize(400, 300)
            self.button = QPushButton(self)
            self.button.setText("右鍵")
    
        def contextMenuEvent(self, event: PySide6.QtGui.QContextMenuEvent) -> None:
            """
            @description 窗口右键菜单事件
            @param
            @return
            """
            # 1.创建菜单对象
            menu = QMenu()
            # 2.创建菜单列表
            menu1 = QAction(QIcon("./1.png"), "保存", self)
            menu2 = QAction("退出", self)
            # 3.将菜单列表添加到菜单对象
            menu.addAction(menu1)
            # 4.添加分隔线
            menu.addSeparator()
            menu.addAction(menu2)
            # 5.给菜单添加事件
            menu1.triggered.connect(lambda: print("保存"))
            menu2.triggered.connect(lambda: quit())
            # 6.显示菜单 event.globalPos()获取全局鼠标点击位置
            menu.exec(event.globalPos())
    
            return super().contextMenuEvent(event)
    
    
    if __name__ == '__main__':
        app = QApplication([])
        main = ExampleWidget()
        main.show()
        app.exec()

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