How to set absolute position of the widgets in qt

Question

I am using QT to develop a rich UI application.

1. I need to position widgets at absolute positions
2. I should be able to put the widget in background / f

Answer 1

Additionally to the answers by Patrice Bernassola and Frank Osterfeld the stacking order might be of interest. It corresponds to the order of the children which you get by findChildren and the ways to manipulate the order are using raise_ (with the trailing underscore), lower or stackUnder.

An example changing the order with each of the 3 available functions using PySide is here:

from PySide import QtGui

app = QtGui.QApplication([])

window = QtGui.QWidget()
window.resize(400, 300)
window.show()

rA = QtGui.QLabel()
rA.name='square'
rA.resize(100, 100)
rA.setStyleSheet('background-color:red;')
rA.setParent(window)
rA.show()

text = QtGui.QLabel('text')
text.name='text'
text.setParent(window)
text.show()

# text was added later than rA: initial order is square under text

rA.raise_()
rA.lower()
text.stackUnder(rA)

children = window.findChildren(QtGui.QWidget)
for child in children:
    print(child.name)

app.exec_()