CODEWITHSUNDEEP
pythonbuttonpyqt5
cerealenthusiast
cerealenthusiast

Reputation: 11

Resetting button to original text pyqt5

I have a button called "start" and when I click the button, it becomes "Pause", when I click it again, it doesn't revert back to "start" it just stays as is and I need to be able to have it go back to the original text. How do I go about this? Right now I have this

    def button_click(self):
        self.start_button.setText("Pause")

This changes the start button to pause but I don't know how to go from pause to start.

Upvotes: -1

Views: 478

Answers (2)

musicamante
musicamante

Reputation: 48489

Once you set a property on an object, it doesn't "remember" its previous state, unless you provide that feature in some way.

A simple solution, at least for boolean-like objects, would be to store the current state, and toggle between them.

        self.start_button = QPushButton('Start')
        self.start_state = False

    # ...

    def button_click(self):
        self.start_state = not self.start_state
        if self.start_state:
            self.start_button.setText("Pause")
        else:
            self.start_button.setText("Start")

An alternative could be to use a checkable button instead, which is also more clear from the UX perspective as the pressed/unpressed state is much more visible to the eye than a string (imagine using "Start"/"Stop", which are very similar).

Since the clicked also sends the checked state automatically, you can add the argument to the function you already have and check that instead.

        self.start_button = QPushButton('Start')
        self.start_button.setCheckable(True)

    # ...

    def button_click(self, state):
        if state:
            self.start_button.setText("Pause")
        else:
            self.start_button.setText("Start")

Note that for this it's usually preferred to use the toggled signal instead, since it also reacts to setChecked() and toggle() functions.

Upvotes: 1

William
William

Reputation: 421

I don't think there's a nice fancy way to do this. Probably just do the following:

def button_click(self):
    if self.start_button.text() == "Pause":
        self.start_button.setText("start")
    elif self.start_button.text() == "start":
        self.start_button.setText("Pause")

Upvotes: 0

Related Questions