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Thread: Using click() on buttonWidget to change the current tab on tabWidget

  1. #1
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    Default Using click() on buttonWidget to change the current tab on tabWidget

    ?Good afternoon from Thailand

    I would like to have some help which it's about the socket in Qt Designer for python.

    So my question is, is it possible to use click() on buttonWidget to change the current tab on tabWidget ?
    (I'm trying to find some solution in the forum but not found yet)

    Thank you in advance for helps

    Zingzing

    1550909695791.jpg
    1550909674982.jpg

  2. #2
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    Default Re: Using click() on buttonWidget to change the current tab on tabWidget

    In C++ it is possible to connect to a lambda function which would then call the setCurrentIndex() method.

    Maybe that is also possible in Python.

    Cheers,
    _

  3. #3
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    Default Re: Using click() on buttonWidget to change the current tab on tabWidget

    If it is only one or two buttons then use one of the two methods, explicit slot method or lambda function, shown in this example:
    Qt Code:
    1. import sys
    2. from PyQt5.QtWidgets import QApplication, QWidget, QVBoxLayout, QTabWidget, QPushButton
    3. from PyQt5.QtGui import QIcon
    4.  
    5. class App(QWidget):
    6.  
    7. def __init__(self):
    8. super().__init__()
    9. self.title = 'Test'
    10. self.left = 10
    11. self.top = 10
    12. self.width = 640
    13. self.height = 480
    14. self.initUI()
    15.  
    16. def initUI(self):
    17. self.setWindowTitle(self.title)
    18. self.setGeometry(self.left, self.top, self.width, self.height)
    19. self.layout = QVBoxLayout(self)
    20. self.tabWidget = QTabWidget(self)
    21. self.tabWidget.addTab(QWidget(), "Page 1")
    22. self.tabWidget.addTab(QWidget(), "Page 2")
    23. self.button1 = QPushButton("Button 1", self)
    24. self.button1.clicked.connect(lambda: self.tabWidget.setCurrentIndex(0))
    25. self.button2 = QPushButton("Button 2", self)
    26. self.button2.clicked.connect(self.button2_clicked)
    27. self.layout.addWidget(self.tabWidget)
    28. self.layout.addWidget(self.button1)
    29. self.layout.addWidget(self.button2)
    30. self.setLayout(self.layout)
    31. self.show()
    32.  
    33. def button2_clicked(self):
    34. self.tabWidget.setCurrentIndex(1)
    35.  
    36. if __name__ == '__main__':
    37. app = QApplication(sys.argv)
    38. ex = App()
    39. sys.exit(app.exec_())
    To copy to clipboard, switch view to plain text mode 

    If you have several buttons that select different tabs in the tab widget then you could connect the buttons clicked() signals into a QSignalMapper, give each input an integer mapping, and connect the mapper's output signal to the tab widget's setCurrentIndex() slot.

  4. The following user says thank you to ChrisW67 for this useful post:

    anda_skoa (24th February 2019)

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