Qt5 mouseEntered / mouseExited 信号？

Question

Is there a mouseEntered / mouseExited signal in Qt? (Equivalent to mouseEntered / mouseExited from Java) I can't seem to find it.

Answer 1

You will have to subclass your widget and install an eventFilter onto it.

class MyButton(QPushButton):
    def __init__(self):
        super(MyButton, self).__init__()
        self.show()

        self.installEventFilter(self)       //Install event filter on widget

    def eventFilter(self, object, event):       //Define eventFilter method
        if event.type() == Event.Enter:
            print(“Mouse is hovering over button”)
        elif event.type() == QEvent.Leave:
            print(“Mouse has left the button”) 
        return False