!/usr/bin/python -*- coding: utf-8 -*- """ ZetCode PyQt4 tutorial This example shows three labels on a window using absolute positioning. author: Jan Bodnar website: zetcode.com last edited: October 2011 """ import sys from PyQt4 import QtGui class Example(QtGui.QWidget): def __init__(self): super(Example, self).__init__() self.initUI() def initUI(self): # The label widget is positioned at x=15 and y=10. lbl1 = QtGui.QLabel('ZetCode', self) lbl1.move(15, 10) lbl2 = QtGui.QLabel('tutorials', self) lbl2.move(35, 40) lbl3 = QtGui.QLabel('for programmers', self) lbl3.move(55, 70) self.setGeometry(300, 300, 250, 150) self.setWindowTitle('Absolute') self.show() def main(): app = QtGui.QApplication(sys.argv) ex = Example() sys.exit(app.exec_()) if __name__ == '__main__': main() -------------------------------------------------------------------------------- #!/usr/bin/python # -*- coding: utf-8 -*- """ ZetCode PyQt4 tutorial In this example, we position two push buttons in the bottom-right corner of the window. author: Jan Bodnar website: zetcode.com last edited: October 2011 """ import sys from PyQt4 import QtGui class Example(QtGui.QWidget): def __init__(self): super(Example, self).__init__() self.initUI() def initUI(self): # Here we create two push buttons. okButton = QtGui.QPushButton("OK") cancelButton = QtGui.QPushButton("Cancel") # We create a horizontal box layout and add a stretch factor and both buttons. The stretch adds a stretchable space before the two buttons. This will push them to the right of the window. hbox = QtGui.QHBoxLayout() # Adds a stretchable space (a QSpacerItem) with zero minimum size and stretch factor stretch to the end of this box layout. # 添加一个弹簧,填充空间 hbox.addStretch(1) hbox.addWidget(okButton) hbox.addWidget(cancelButton) # To create the necessary layout, we put a horizontal layout into a vertical one. The stretch factor in the vertical box will push the horizontal box with the buttons to the bottom of the window. vbox = QtGui.QVBoxLayout() # 添加一个弹簧,填充空间 vbox.addStretch(1) vbox.addLayout(hbox) # Finally, we set the main layout of the window. self.setLayout(vbox) self.setGeometry(300, 300, 300, 150) self.setWindowTitle('Buttons') self.show() def main(): app = QtGui.QApplication(sys.argv) ex = Example() sys.exit(app.exec_()) if __name__ == '__main__': main() -------------------------------------------------------------------------------- #!/usr/bin/python # -*- coding: utf-8 -*- import sys from PyQt4 import QtGui """ ZetCode PyQt4 tutorial In this example, we create a skeleton of a calculator using a QtGui.QGridLayout. author: Jan Bodnar website: zetcode.com last edited: July 2014 """ class Example(QtGui.QWidget): def __init__(self): super(Example, self).__init__() self.initUI() def initUI(self): # The instance of a QtGui.QGridLayout is created and set to be the layout for the application window. grid = QtGui.QGridLayout() self.setLayout(grid) # These are the labels used later for buttons. names = ['Cls', 'Bck', '', 'Close', '7', '8', '9', '/', '4', '5', '6', '*', '1', '2', '3', '-', '0', '.', '=', '+'] # We create a list of positions in the grid. positions = [(i,j) for i in range(5) for j in range(4)] # Buttons are created and added to the layout with the addWidget() method. for position, name in zip(positions, names): if name == '': continue button = QtGui.QPushButton(name) grid.addWidget(button, *position) self.move(300, 150) self.setWindowTitle('Calculator') self.show() def main(): app = QtGui.QApplication(sys.argv) ex = Example() sys.exit(app.exec_()) if __name__ == '__main__': main() -------------------------------------------------------------------------------- #!/usr/bin/python # -*- coding: utf-8 -*- """ ZetCode PyQt4 tutorial In this example, we create a bit more complicated window layout using the QtGui.QGridLayout manager. author: Jan Bodnar website: zetcode.com last edited: October 2011 """ import sys from PyQt4 import QtGui class Example(QtGui.QWidget): def __init__(self): super(Example, self).__init__() self.initUI() def initUI(self): title = QtGui.QLabel('Title') author = QtGui.QLabel('Author') review = QtGui.QLabel('Review') titleEdit = QtGui.QLineEdit() authorEdit = QtGui.QLineEdit() reviewEdit = QtGui.QTextEdit() # We create a grid layout and set spacing between widgets. grid = QtGui.QGridLayout() grid.setSpacing(10) grid.addWidget(title, 1, 0) grid.addWidget(titleEdit, 1, 1) grid.addWidget(author, 2, 0) grid.addWidget(authorEdit, 2, 1) grid.addWidget(review, 3, 0) # If we add a widget to a grid, we can provide row span and column span of the widget. In our case, we make the reviewEdit widget span 5 rows. grid.addWidget(reviewEdit, 3, 1, 5, 1) self.setLayout(grid) self.setGeometry(300, 300, 350, 300) self.setWindowTitle('Review') self.show() def main(): app = QtGui.QApplication(sys.argv) ex = Example() sys.exit(app.exec_()) if __name__ == '__main__': main()
时间: 2024-09-21 10:47:10