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

__Name__ = 'Message Box'
__Comment__ = 'Show how to give information to the user in macros'
__Web__ = 'http://freecadweb.org/wiki/Macro_MessageBox'
__Wiki__ = 'http://freecadweb.org/wiki/Macro_MessageBox'
__Icon__ = ""
__Help__ = 'Run and be warned'
__Author__ = 'galou, Mario52 and other contributors'
__Version__ = 1.0
__Status__ = 'Production'
__Requires__ = ''

from PySide import QtCore, QtGui


def errorDialog(msg):
    """Create a simple dialog QMessageBox"""
    # The first argument indicates the icon used: one of
    # QtGui.QMessageBox.{NoIcon, Information, Warning, Critical, Question}
    diag = QtGui.QMessageBox(QtGui.QMessageBox.Warning,
                             u'Warning in macro MessageBox', msg)
    diag.setWindowModality(QtCore.Qt.ApplicationModal)
    diag.exec_()

# To display multiple lines in a dialog box Qt, '\n' can be added between
# lines. '\t' inserts a tab. The backslash is a then a special character which
# must be escaped, i.e. insert '\\' to display a backslash. Single quotes must
# also be escaped in a single-quote-delimited string and double-quotes in a
# double-quote-delimited string. See Python doc for details.
msg = 'Example of warning message\nYou should\'t have done this.'
errorDialog(msg)
raise(Exception(msg))