text: 
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  ## Copyright (C) 2013 Riverbank Computing Limited.
  ## Copyright (C) 2016 The Qt Company Ltd.
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  ## This file is part of the Qt for Python examples of the Qt Toolkit.
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  """PySide2 port of the widgets/layouts/basiclayout example from Qt v5.x"""
  
  from PySide2 import QtWidgets
  
  
  class Dialog(QtWidgets.QDialog):
      NumGridRows = 3
      NumButtons = 4
  
      def __init__(self):
          super(Dialog, self).__init__()
  
          self.createMenu()
          self.createHorizontalGroupBox()
          self.createGridGroupBox()
          self.createFormGroupBox()
  
          bigEditor = QtWidgets.QTextEdit()
          bigEditor.setPlainText("This widget takes up all the remaining space "
                  "in the top-level layout.")
  
          buttonBox = QtWidgets.QDialogButtonBox(QtWidgets.QDialogButtonBox.Ok | QtWidgets.QDialogButtonBox.Cancel)
  
          buttonBox.accepted.connect(self.accept)
          buttonBox.rejected.connect(self.reject)
  
          mainLayout = QtWidgets.QVBoxLayout()
          mainLayout.setMenuBar(self.menuBar)
          mainLayout.addWidget(self.horizontalGroupBox)
          mainLayout.addWidget(self.gridGroupBox)
          mainLayout.addWidget(self.formGroupBox)
          mainLayout.addWidget(bigEditor)
          mainLayout.addWidget(buttonBox)
          self.setLayout(mainLayout)
  
          self.setWindowTitle("Basic Layouts")
  
      def createMenu(self):
          self.menuBar = QtWidgets.QMenuBar()
  
          self.fileMenu = QtWidgets.QMenu("&File", self)
          self.exitAction = self.fileMenu.addAction("E&xit")
          self.menuBar.addMenu(self.fileMenu)
  
          self.exitAction.triggered.connect(self.accept)
  
      def createHorizontalGroupBox(self):
          self.horizontalGroupBox = QtWidgets.QGroupBox("Horizontal layout")
          layout = QtWidgets.QHBoxLayout()
  
          for i in range(Dialog.NumButtons):
              button = QtWidgets.QPushButton("Button %d" % (i + 1))
              layout.addWidget(button)
  
          self.horizontalGroupBox.setLayout(layout)
  
      def createGridGroupBox(self):
          self.gridGroupBox = QtWidgets.QGroupBox("Grid layout")
          layout = QtWidgets.QGridLayout()
  
          for i in range(Dialog.NumGridRows):
              label = QtWidgets.QLabel("Line %d:" % (i + 1))
              lineEdit = QtWidgets.QLineEdit()
              layout.addWidget(label, i + 1, 0)
              layout.addWidget(lineEdit, i + 1, 1)
  
          self.smallEditor = QtWidgets.QTextEdit()
          self.smallEditor.setPlainText("This widget takes up about two thirds "
                  "of the grid layout.")
  
          layout.addWidget(self.smallEditor, 0, 2, 4, 1)
  
          layout.setColumnStretch(1, 10)
          layout.setColumnStretch(2, 20)
          self.gridGroupBox.setLayout(layout)
  
      def createFormGroupBox(self):
          self.formGroupBox = QtWidgets.QGroupBox("Form layout")
          layout = QtWidgets.QFormLayout()
          layout.addRow(QtWidgets.QLabel("Line 1:"), QtWidgets.QLineEdit())
          layout.addRow(QtWidgets.QLabel("Line 2, long text:"), QtWidgets.QComboBox())
          layout.addRow(QtWidgets.QLabel("Line 3:"), QtWidgets.QSpinBox())
          self.formGroupBox.setLayout(layout)
  
  
  if __name__ == '__main__':
  
      import sys
  
      app = QtWidgets.QApplication(sys.argv)
      dialog = Dialog()
      sys.exit(dialog.exec_())
  