# -*- coding: utf-8 -*-
#
# QBrz - Qt frontend to Breezy commands
# Copyright (C) 2013 QBzr Developers
#
# 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; either version 2
# of the License, or (at your option) any later version.
#
# 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.

"""Only for Windows."""

import ctypes
import platform

# Internal versions of Microsoft Windows
XP    = '5.1'
Vista = '6.0'
Win7  = '6.1'
Win8  = '6.2'

def is_vista_or_higher():
    win_ver = platform.win32_ver()[1]
    if win_ver >= Vista:
        return True
    else:
        return False

def is_vista_or_win7():
    win_ver = platform.win32_ver()[1]
    if win_ver >= Vista and win_ver < Win8:
        return True
    else:
        return False

def is_win8_or_higher():
    win_ver = platform.win32_ver()[1]
    if win_ver >= Win8:
        return True
    else:
        return False

def is_aero_enabled():
    if not is_vista_or_higher():
        return False
    try:
        bResult = ctypes.c_int(0)
        # DwmIsCompositionEnabled function should tell us whether aero is enabled
        ctypes.windll.dwmapi.DwmIsCompositionEnabled(ctypes.byref(bResult))
        return bool(bResult.value)
    except Exception as e:    # that's really bad, I know, shame on me
        print(e)             # if we will be there somebody will let me know which exactly error there is
        return False
