PySide make QDialog appear in main window

问题

I've created an app which has an main window and the possibility to open an dialog (question, error and so on). I'm not using QMessageBox.warning() or QMessageBox.question() and so on because I wanted to customize the dialogs a bit.

But every time I open a new Dialog, in the Windows task bar (I'm working on Windows 10) a new 'tab' is opened, which is a little bit annoying.

My code (shortened):

from PySide import QtCore, QtGui
import sys

class MessageBox:
    def __init__(self, title, message):
        msg = QtGui.QMessageBox()
        flags = QtCore.Qt.Dialog
        flags |= QtCore.Qt.CustomizeWindowHint
        flags |= QtCore.Qt.WindowTitleHint
        msg.setWindowFlags(flags)
        msg.setWindowTitle(title)
        msg.setText(message)
        msg.exec_()

class MainWindow(QtGui.QMainWindow):
    def __init__(self):
        super(MainWindow, self).__init__()
        self.show()

        MessageBox("Title", "My message here")

if __name__ == "__main__":
    app = QtGui.QApplication([])
    window = MainWindow()
    sys.exit(app.exec_())

Note: Normally, the dialog is called from an menu or button.

Question: How can I make the dialog appear in the main window without creating a new 'task bar tab'?

回答1:

The solution was quite simple: Passing an reference of QMainWindow to the constructor of QDialog will do the job, e.g:

class MessageBox(QtGui.QDialog):
    def __init__(self, parent, title, message, icon="info"):
        super(MessageBox, self).__init__(parent)
        ...

and then calling the dialog from an class that inherits from QMainWindow:

class MainWindow(QtGui.QMainWindow):
    def __init__(self):
        super(MainWindow, self).__init__()

        #connect button with function, e.g.:
        mybutton.clicked.connect(self.open_dialog)

   def open_dialog(self):
       MessageBox(self)

Maybe this helps anyone!

回答2:

If you set the parent of the QDialog to the window, it will only show as one item on the task bar. This is generally the first argument to QMessageBox.

class MessageBox:
    def __init__(self, parent, title, message):
        msg = QtGui.QMessageBox(parent)

Also, if you really want to create a custom dialog, you might as well just subclass from QDialog.

来源：https://stackoverflow.com/questions/36340134/pyside-make-qdialog-appear-in-main-window

标签

python

pyqt

pyside