dialog_color.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-


"""
Selecting a color value from the QtGui.QColorDialog and change the background color of a QtGui.QFrame widget

Author : Sukhvinder Singh | karramsos@gmail.com | @karramsos
"""

import sys
from PySide import QtGui

class Example(QtGui.QWidget):
    
    def __init__(self):
        super(Example, self).__init__()
        
        self.initUI()
        
    def initUI(self):
        
        col = QtGui.QColor(0,0,0)
        
        self.btn = QtGui.QPushButton('Dialog', self)
        self.btn.move(20, 20)
        
        self.btn.clicked.connect(self.showDialog)
        
        self.frm = QtGui.QFrame(self)
        self.frm.setStyleSheet("QWidget { background-color: %s }" % col.name())
        self.frm.setGeometry(130, 22, 100, 100)
        
        self.setGeometry(300, 300, 250, 180)
        self.setWindowTitle('Color dialog')
        self.show()
        
    def showDialog(self):
        
        col = QtGui.QColorDialog.getColor()
        
        if col.isValid():
            self.frm.setStyleSheet("QWidget { background-color: %s }" % col.name())
              
            
def main():
    
    app = QtGui.QApplication(sys.argv)
    ex = Example()
    sys.exit(app.exec_())
    
if __name__ == '__main__':
    main()