How to set Pyqt widget focus on a new opened item?

Question

I need to make a action similar to what QMessageBox.question() does. Wrote an app that has a simple interface containing buttons, sliders and other stuff. When I change a position of a slider and release mouse button I need a new widget to be appeared and let user choose options only from this new widget. As far as I know QMessageBox.question allows user to select Yes, No or Cancel options.

When question is called like

QMessageBox.question(self, u'Notification', u'Save changes?', QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

the focus that previously were on a main window, goes to question and user has to select something only from question dialog.

I need to open another class with its own buttons but to keep the function that freezes parent app.

Here is a sample

class ResetFilter(QWidget): def __init__(self): super().__init__() self.centerPoint = QDesktopWidget().availableGeometry().center() self.width = 320 self.height = 50 self.initUI() def initUI(self): self.setWindowFlags(QtCore.Qt.Window | Qt.WindowStaysOnTopHint) self.grid = QGridLayout(self) self.setLayout(self.grid) hbox_ques = QHBoxLayout() self.grid.addLayout(hbox_ques, 0, 0) self.yes = QPushButton(self) self.yes.setGeometry(80, 20, 50, 50) self.yes.setText(u'YES') hbox_ques.addWidget(self.yes) self.no = QPushButton(self) self.no.setGeometry(140, 20, 50, 50) self.no.setText(u'NO') hbox_ques.addWidget(self.no) self.tmnt = QPushButton(self) self.tmnt.setGeometry(200, 20, 50, 50) self.tmnt.setText(u'TERMINATE') hbox_ques.addWidget(self.tmnt) self.setGeometry(self.centerPoint.x() - self.width/2, self.centerPoint.y() - self.height/2, self.width, self.height) self.show() class Pio(QWidget): def __init__(self): super().__init__() self.initUI() def initUI(self): centerPoint = QDesktopWidget().availableGeometry().center() self.setWindowFlags(QtCore.Qt.Window | Qt.WindowStaysOnTopHint) self.launch = False self.grid = QGridLayout(self) self.setLayout(self.grid) hbox_lbl = QHBoxLayout() self.grid.addLayout(hbox_lbl, 0, 0) self.slider = QSlider(Qt.Horizontal) self.slider.sliderReleased.connect(self.ids_change) hbox_lbl.addWidget(self.slider) self.move(centerPoint.x() - self.width()/2, centerPoint.y() - self.height()/2) self.show() def ids_change(self): self.item_reset = ResetFilter() self.item_reset.show() self.item_reset.setFocusPolicy(Qt.StrongFocus) mainWin = Pio() mainWin.show()

Heike · Accepted Answer · 2019-05-13 14:59:30Z

If I understand your question correctly you want to freeze the main window while the popup window is open. To achieve this you could make ResetFilter a subclass of QDialog and make it modal e.g.

class ResetFilter(QDialog): def __init__(self, *args, **kwargs): super().__init__(*args, **kwargs) self.setModal(True) # rest as before

In Pio.ids_change you would then need to initiate ResetFilter with self as its parents, e.g.

 def ids_change(self): self.item_reset = ResetFilter(self)

I recently found almost same solution. In init function of ResetFilter pasted self.setWindowModality(Qt.ApplicationModal) and from now it works as I wanted

Collectives™ on Stack Overflow

How to set Pyqt widget focus on a new opened item?

1 Answer 1

1 Comment

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Related