Hey high_flyer,

thanks again for the help.
I've reduced the code to have only two radio buttons inside the grid layout which self is inside a scroll area. Nevertheless here comes the code:

Qt Code: 
  1. # -*- coding: utf-8 -*-
  2.  
  3. # Form implementation generated from reading ui file 'test.ui'
  4. #
  5. # Created by: PyQt4 UI code generator 4.11.4
  6. #
  7. # WARNING! All changes made in this file will be lost!
  8.  
  9. from PyQt4 import QtCore, QtGui
  10.  
  11. try:
  12.     _fromUtf8 = QtCore.QString.fromUtf8
  13. except AttributeError:
  14.     def _fromUtf8(s):
  15.         return s
  16.  
  17. try:
  18.     _encoding = QtGui.QApplication.UnicodeUTF8
  19.     def _translate(context, text, disambig):
  20.         return QtGui.QApplication.translate(context, text, disambig, _encoding)
  21. except AttributeError:
  22.     def _translate(context, text, disambig):
  23.         return QtGui.QApplication.translate(context, text, disambig)
  24.  
  25. class Ui_Dialog(object):
  26.     def setupUi(self, Dialog):
  27.         Dialog.setObjectName(_fromUtf8("Dialog"))
  28.         Dialog.resize(485, 785)
  29.         Dialog.setMinimumSize(QtCore.QSize(485, 400))
  30.         Dialog.setMaximumSize(QtCore.QSize(495, 785))
  31.         Dialog.setSizeIncrement(QtCore.QSize(1, 1))
  32.         Dialog.setMouseTracking(False)
  33.         Dialog.setAutoFillBackground(False)
  34.         Dialog.setModal(False)
  35.         self.layoutWidget = QtGui.QWidget(Dialog)
  36.         self.layoutWidget.setGeometry(QtCore.QRect(10, 736, 471, 49))
  37.         self.layoutWidget.setObjectName(_fromUtf8("layoutWidget"))
  38.         self.SaveCancelLayout = QtGui.QHBoxLayout(self.layoutWidget)
  39.         self.SaveCancelLayout.setContentsMargins(0, 8, 5, 0)
  40.         self.SaveCancelLayout.setSpacing(10)
  41.         self.SaveCancelLayout.setObjectName(_fromUtf8("SaveCancelLayout"))
  42.         self.cancelButton = QtGui.QPushButton(self.layoutWidget)
  43.         self.cancelButton.setMaximumSize(QtCore.QSize(200, 40))
  44.         self.cancelButton.setLayoutDirection(QtCore.Qt.LeftToRight)
  45.         self.cancelButton.setObjectName(_fromUtf8("cancelButton"))
  46.         self.SaveCancelLayout.addWidget(self.cancelButton)
  47.         self.scrollArea = QtGui.QScrollArea(Dialog)
  48.         self.scrollArea.setGeometry(QtCore.QRect(10, 40, 471, 691))
  49.         self.scrollArea.setWidgetResizable(True)
  50.         self.scrollArea.setObjectName(_fromUtf8("scrollArea"))
  51.         self.scrollAreaWidgetContents = QtGui.QWidget()
  52.         self.scrollAreaWidgetContents.setGeometry(QtCore.QRect(0, 0, 469, 689))
  53.         self.scrollAreaWidgetContents.setObjectName(_fromUtf8("scrollAreaWidgetContents"))
  54.         self.layoutWidget1 = QtGui.QWidget(self.scrollAreaWidgetContents)
  55.         self.layoutWidget1.setGeometry(QtCore.QRect(0, 20, 471, 631))
  56.         self.layoutWidget1.setObjectName(_fromUtf8("layoutWidget1"))
  57.         self.gridLayout = QtGui.QGridLayout(self.layoutWidget1)
  58.         self.gridLayout.setMargin(9)
  59.         self.gridLayout.setSpacing(6)
  60.         self.gridLayout.setObjectName(_fromUtf8("gridLayout"))
  61.         self.line_4 = QtGui.QFrame(self.layoutWidget1)
  62.         self.line_4.setMaximumSize(QtCore.QSize(465, 16777215))
  63.         self.line_4.setFrameShape(QtGui.QFrame.HLine)
  64.         self.line_4.setFrameShadow(QtGui.QFrame.Sunken)
  65.         self.line_4.setObjectName(_fromUtf8("line_4"))
  66.         self.gridLayout.addWidget(self.line_4, 0, 0, 1, 4)
  67.         self.logEnable = QtGui.QRadioButton(self.layoutWidget1)
  68.         font = QtGui.QFont()
  69.         font.setBold(True)
  70.         font.setWeight(75)
  71.         self.logEnable.setFont(font)
  72.         self.logEnable.setChecked(True)
  73.         self.logEnable.setObjectName(_fromUtf8("logEnable"))
  74.         self.buttonGroup_logging = QtGui.QButtonGroup(Dialog)
  75.         self.buttonGroup_logging.setObjectName(_fromUtf8("buttonGroup_logging"))
  76.         self.buttonGroup_logging.addButton(self.logEnable)
  77.         self.gridLayout.addWidget(self.logEnable, 1, 1, 1, 1)
  78.         self.logDisable = QtGui.QRadioButton(self.layoutWidget1)
  79.         font = QtGui.QFont()
  80.         font.setBold(True)
  81.         font.setWeight(75)
  82.         self.logDisable.setFont(font)
  83.         self.logDisable.setObjectName(_fromUtf8("logDisable"))
  84.         self.buttonGroup_logging.addButton(self.logDisable)
  85.         self.gridLayout.addWidget(self.logDisable, 1, 2, 1, 1)
  86.         self.scrollArea.setWidget(self.scrollAreaWidgetContents)
  87.  
  88.         self.retranslateUi(Dialog)
  89.         QtCore.QMetaObject.connectSlotsByName(Dialog)
  90.  
  91.     def retranslateUi(self, Dialog):
  92.         Dialog.setWindowTitle(_translate("Dialog", "Test Editor", None))
  93.         self.cancelButton.setText(_translate("Dialog", "Stop and exit", None))
  94.         self.logEnable.setText(_translate("Dialog", "enable logfile", None))
  95.         self.logDisable.setText(_translate("Dialog", "disable logfile", None))
  96.  
  97.  
  98. if __name__ == "__main__":
  99.     import sys
  100.     app = QtGui.QApplication(sys.argv)
  101.     Dialog = QtGui.QDialog()
  102.     ui = Ui_Dialog()
  103.     ui.setupUi(Dialog)
  104.     Dialog.show()
  105.     sys.exit(app.exec_())
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