Pyside facial rig interface?

[manuelfisher]

Hello everyone, 
I'm having a problem building an interface with pyside, 
I'm trying to have a picture of the face of my character, and on top of it, i want to place some small buttons to select the controls. 
...it seems I can't place buttons in an absolute space when I'm inside a layout, ...does anyone has an idea how to do it? is there another way to do it?

Thanks

E

This is my sample code:

import traceback
from PySide import QtCore
from PySide import QtGui
from shiboken import wrapInstance
import maya.cmds as mc
import maya.OpenMayaUI as omui

def maya_main_window():
    main_window_ptr = omui.MQtUtil.mainWindow()
    return wrapInstance(long(main_window_ptr), QtGui.QWidget)

class TestUi(QtGui.QDialog):
    def __init__(self, parent=maya_main_window()):
    super(TestUi, self).__init__(parent)

def create(self):
    #Set up the UI prior to display
    self.setWindowTitle("TestUi")
    self.setWindowFlags(QtCore.Qt.Tool)
    self.create_controls()
    self.create_layout()

def create_controls(self):

    #Create the widgets for the dialog
    labelImage = QtGui.QPixmap("/Desktop/testFace.jpg")
    self.image_label = QtGui.QLabel(" ")
    self.image_label.setPixmap(labelImage)
    self.push_button = QtGui.QPushButton("")
    self.push_button.setFixedHeight(12)
    self.push_button.setFixedWidth(12)
    self.push_button.setStyleSheet("background-color:red;");
    self.push_button.move(10,10)

def create_layout(self):

    #Create the layouts and add widgets
    main_layout = QtGui.QVBoxLayout()
    main_layout.setContentsMargins(6, 6, 6, 6)
    main_layout.addWidget(self.image_label)
    main_layout.addWidget(self.push_button)
    main_layout.addStretch()
    self.setLayout(main_layout)

if __name__ == "__main__":

    try:
        test_ui.deleteLater()
    except:
        pass
    test_ui = TestUi()

    try:
        test_ui.create()
        test_ui.show()
    except:
        test_ui.deleteLater()
        traceback.print_exc()