# This file is part of MyPaint.

# Copyright (C) 2007-2009 by Martin Renold <martinxyz@gmx.ch>

#

# 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 script does all the platform dependent stuff. Its main task is

to figure out where the python modules are.

"""

import sys, os

def get_paths():

    join = os.path.join

    lib_shared='share/mypaint/'

    # note: some distros use lib64 instead, they have to edit this...

    lib_compiled='lib/mypaint/'

    scriptdir=os.path.dirname(sys.argv[0])

    # this script is installed as $prefix/bin. We just need $prefix to continue.

    #pwd=os.getcwd() # why????

    #dir_install=os.path.normpath(join(pwd,scriptdir)) # why????

    dir_install=scriptdir # same, except maybe if scriptdir is relative...

    if os.path.basename(dir_install) == 'bin':

        prefix=os.path.dirname(dir_install)

        libpath=join(prefix, lib_shared)

        libpath_compiled = join(prefix, lib_compiled)

        sys.path.insert(0, libpath)

        sys.path.insert(0, libpath_compiled)

        localepath = join(prefix, 'share/locale')

    elif sys.platform == 'win32':

        prefix=None

        # this is py2exe point of view, all executables in root of installdir

        # all path must be normalized to absolute path

        libpath = os.path.abspath(os.path.dirname(os.path.realpath(sys.argv[0])))

        sys.path.insert(0, libpath)

        localepath = join(libpath,'share/locale')

    else:

        # we are not installed

        prefix=None

        libpath='.'

        localepath = 'po'

    try: # just for a nice error message

        from lib import mypaintlib

    except ImportError:

        print

        print "We are not correctly installed or compiled!"

        print 'script: "%s"' % sys.argv[0]

        if prefix:

            print 'deduced prefix: "%s"' % prefix

            print 'lib_shared: "%s"' % libpath

            print 'lib_compiled: "%s"' % libpath_compiled

        print

        raise

    datapath = libpath

    if not os.path.isdir(join(datapath, 'brushes')):

        print 'Default brush collection not found! It should have been here:'

        print datapath

        raise sys.exit(1)

    homepath =  os.path.expanduser('~')

    if homepath == '~':

        confpath = join(prefix, 'UserData')

    else:

        confpath = join(homepath, '.mypaint/')

    return datapath, confpath, localepath

def psyco_opt():

    # This helps on slow PCs where the python overhead dominates.

    # (30% higher framerate measured on 533MHz CPU; startup slowdown below 20%)

    # Note: python -O -O does not help.

    if os.name in ('nt', 'ce'):

        # reported to be broken on Windows

        return

    try:

        import psyco

        if sys.platform == 'win32':

            if psyco.hexversion >= 0x020000f0 :

                psyco.full()

                print 'Psyco being used'

            else:

                print "Need at least psyco 2.0 to run"

        else:

            psyco.full()

            print 'Psyco being used'

    except ImportError:

        pass

if __name__ == '__main__':

    psyco_opt()

    datapath, confpath, localepath = get_paths()

    # must be done before importing any translated python modules

    # (to get global strings translated, especially brushsettings.py)

    import gettext

    if sys.platform == 'win32':

        import locale

        os.environ['LANG'] = locale.getdefaultlocale()[0]

    gettext.bindtextdomain("mypaint", localepath)

    gettext.textdomain("mypaint")

    from gui import main

    main.main(datapath, confpath)