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#
# language_text.py: text mode language selection dialog
#
# Copyright 2001-2002 Red Hat, Inc.
#
# This software may be freely redistributed under the terms of the GNU
# library public license.
#
# You should have received a copy of the GNU Library Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#

import os
import isys
import iutil
import time
from snack import *
from constants_text import *
from flags import flags

from rhpl.log import *
from rhpl.translate import _

class LanguageWindow:
    def __call__(self, screen, textInterface, instLanguage):
        languages = instLanguage.available ()

        current = instLanguage.getCurrent()

        height = min((8, len(languages)))
	buttons = [TEXT_OK_BUTTON, TEXT_BACK_BUTTON]

        translated = []
        for lang in languages:
            translated.append ((_(lang), instLanguage.getNickByName(lang)))
        (button, choice) = \
            ListboxChoiceWindow(screen, _("Language Selection"),
			_("What language would you like to use during the "
			  "installation process?"), translated, 
			buttons, width = 30, default = _(current), scroll = 1,
                                height = height, help = "lang")

        if button == TEXT_BACK_CHECK:
            return INSTALL_BACK

        if ((instLanguage.getFontFile(choice) == "None")):
            ButtonChoiceWindow(screen, "Language Unavailable",
                               "%s display is unavailable in text mode.  The "
                               "installation will continue in English." % (choice,),
                               buttons=[TEXT_OK_BUTTON])
            instLanguage.setRuntimeDefaults(choice)
            return INSTALL_OK

        if (flags.setupFilesystems and
            instLanguage.getFontFile(choice) == "bterm"
            and not flags.serial and not flags.virtpconsole
            and not isys.isPsudoTTY(0)
            and not isys.isVioConsole()):
            # bterm to the rescue...  have to shut down the screen and
            # create a new one, though (and do a sleep)
            log("starting bterm")
            try:
                screen.finish()
                rc = isys.startBterm()
                time.sleep(1)
            except Exception, e:
                log("got an exception starting bterm: %s" %(e,))
                rc = 1
            newscreen = SnackScreen()
            textInterface.setScreen(newscreen)
            screen = newscreen

            if rc == 1:
                ButtonChoiceWindow(screen, "Language Unavailable",
                                   "%s display is unavailable in text mode.  "
                                   "The installation will continue in "
                                   "English." % (choice,),
                                   buttons=[TEXT_OK_BUTTON])
                instLanguage.setRuntimeDefaults(choice)
                return INSTALL_OK
                

	instLanguage.setRuntimeLanguage(choice)
	instLanguage.setDefault(choice)
                
	textInterface.drawFrame()
	    
        return INSTALL_OK