#!/bin/env python

# -*- coding: utf-8 -*-

# ------------------------------------------------------------

# credentials-dialog

# 

# ask the user credentials

#

# Autor: Oliver Maurhart, <oliver.maurhart@ait.ac.at>

#

# Copyright (C) 2013 AIT Austrian Institute of Technology

# AIT Austrian Institute of Technology GmbH

# Donau-City-Strasse 1 | 1220 Vienna | Austria

# http://www.ait.ac.at

#

# This program is free software; you can redistribute it and/or

# modify it under the terms of the GNU General Public License

# as published by the Free Software Foundation version 2.

# 

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

# 

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 51 Franklin Street, Fifth Floor, 

# Boston, MA  02110-1301, USA.

# ------------------------------------------------------------

# ------------------------------------------------------------

# imports

import sys

from PyQt4 import QtCore

from PyQt4 import QtGui

# local

from about import About

# ------------------------------------------------------------

# code

class Credentials(QtGui.QDialog):

    """Ask the user for credentials."""

    def __init__(self, text, parent = None, flags = QtCore.Qt.WindowFlags(0)):

        super(Credentials, self).__init__(parent, flags)

        self.setWindowTitle('OpenSecuirty Credentials Request')

        self.setup_ui()

        # positionate ourself central

        screen = QtGui.QDesktopWidget().screenGeometry()

        self.resize(self.geometry().width() * 1.25, self.geometry().height())

        size = self.geometry()

        self.move((screen.width() - size.width()) / 2, (screen.height() - size.height()) / 2)

        # fix up text

        self.lbText.setText(text)

    def clicked_about(self):

        """clicked the about button"""

        dlgAbout = About()

        dlgAbout.exec_()

    def clicked_cancel(self):

        """clicked the cancel button"""

        self.reject()

    def clicked_ok(self):

        """clicked the ok button"""

        sys.stdout.write('{ ')

        sys.stdout.write('\'user\': \'')

        sys.stdout.write(self.edUser.text())

        sys.stdout.write('\', ')

        sys.stdout.write('\'password\': \'')

        sys.stdout.write(self.edPassword.text())

        sys.stdout.write('\' ')

        sys.stdout.write('}\n')

        self.accept()

    def setup_ui(self):

        """Create the widgets."""

        lyMain = QtGui.QVBoxLayout(self)

        lyMain.setContentsMargins(8, 8, 8, 8)

        # content area: left pixmap, right text

        lyContent = QtGui.QHBoxLayout()

        lyMain.addLayout(lyContent)

        # pixmap

        lbPix = QtGui.QLabel()

        lbPix.setPixmap(QtGui.QPixmapCache.find('opensecurity_icon_64'))

        lyContent.addWidget(lbPix, 0, QtCore.Qt.Alignment(QtCore.Qt.AlignTop + QtCore.Qt.AlignHCenter))

        lyContent.addSpacing(16)

        # text ...

        lyText = QtGui.QGridLayout()

        lyContent.addLayout(lyText)

        self.lbText = QtGui.QLabel()

        lyText.addWidget(self.lbText, 0, 0, 1, 2)

        lbUser = QtGui.QLabel('&User:')

        lyText.addWidget(lbUser, 1, 0)

        self.edUser = QtGui.QLineEdit()

        lyText.addWidget(self.edUser, 1, 1)

        lbUser.setBuddy(self.edUser)

        lbPassword = QtGui.QLabel('&Password:')

        lyText.addWidget(lbPassword, 2, 0)

        self.edPassword = QtGui.QLineEdit()

        self.edPassword.setEchoMode(QtGui.QLineEdit.Password)

        lyText.addWidget(self.edPassword, 2, 1)

        lbPassword.setBuddy(self.edPassword)

        lyText.addWidget(QtGui.QWidget(), 3, 0, 1, 2)

        lyText.setColumnStretch(1, 1)

        lyText.setRowStretch(3, 1)

        lyMain.addStretch(1)

        # buttons

        lyButton = QtGui.QHBoxLayout()

        lyMain.addLayout(lyButton)

        lyButton.addStretch(1)

        btnOk = QtGui.QPushButton('&Ok', self)

        btnOk.setDefault(True)

        btnOk.setMinimumWidth(100)

        lyButton.addWidget(btnOk)

        btnCancel = QtGui.QPushButton('&Cancel', self)

        btnCancel.setMinimumWidth(100)

        lyButton.addWidget(btnCancel)

        btnAbout = QtGui.QPushButton('&About', self)

        btnAbout.setMinimumWidth(100)

        lyButton.addWidget(btnAbout)

        button_width = max(btnOk.width(), btnCancel.width(), btnAbout.width())

        btnOk.setMinimumWidth(button_width)

        btnCancel.setMinimumWidth(button_width)

        btnAbout.setMinimumWidth(button_width)

        # reduce to the max

        self.resize(lyMain.minimumSize())

        # connectors

        btnOk.clicked.connect(self.clicked_ok)

        btnCancel.clicked.connect(self.clicked_cancel)

        btnAbout.clicked.connect(self.clicked_about)