import gettext
import iutil
from snack import *
from textw.constants import *
from text import _

#cat = gettext.Catalog ("anaconda", "/usr/share/locale")
#_ = cat.gettext

class SiloAppendWindow:

   def __call__(self, screen, todo):
       t = TextboxReflowed(53,
                    _("A few systems will need to pass special options "
                      "to the kernel at boot time for the system to function "
                      "properly. If you need to pass boot options to the "
                      "kernel, enter them now. If you don't need any or "
                      "aren't sure, leave this blank."))

       entry = Entry(48, scroll = 1, returnExit = 1)
       buttons = ButtonBar(screen, [(_("OK"), "ok"), (_("Skip"), "skip"),
                            (_("Back"), "back") ] )

       grid = GridForm(screen, _("SILO Configuration"), 1, 3)
       grid.add(t, 0, 0)
       grid.add(entry, 0, 1, padding = (0, 0, 0, 1))
       grid.add(buttons, 0, 2, growx = 1)

       result = grid.runOnce ()
       button = buttons.buttonPressed(result)

       if button == "back":
           return INSTALL_BACK

       if button == "skip":
           todo.skipLilo = 1
           todo.liloDevice = None
       else:
           todo.skipLilo = 0

       return INSTALL_OK

class SiloWindow:
   def __call__(self, screen, todo):
       if '/' not in todo.mounts.keys (): return INSTALL_NOOP
       if todo.skipLilo: return INSTALL_NOOP

       (bootpart, boothd) = todo.getLiloOptions()

       if (todo.getLiloLocation () == "mbr"):
           default = 1
       elif (todo.getLiloLocation () == "partition"):
           default = 0
       else:
           default = 1

       format = "/dev/%-11s %s"
       locations = []
       locations.append (format % (bootpart, "First sector of boot partition"))
       locations.append (format % (boothd, "Master Boot Record (MBR)"))

       title = _("SILO Configuration")
       (rc, sel) = ListboxChoiceWindow (screen, title,
                                        _("Where do you want to install the bootloader?"),
                                        locations, default = default,
                                        buttons = [ _("OK"), _("Back") ])

       if sel == 1:
           todo.setLiloLocation("mbr")
       else:
           todo.setLiloLocation("partition")

       if rc == string.lower (_("Back")):
           return INSTALL_BACK
       return INSTALL_OK

class SiloImagesWindow:
   def editItem(self, screen, partition, itemLabel):
       devLabel = Label(_("Device") + ":")
       bootLabel = Label(_("Boot label") + ":")
       device = Label("/dev/" + partition)
       newLabel = Entry (20, scroll = 1, returnExit = 1, text = itemLabel)

       buttons = ButtonBar(screen, [_("Ok"), _("Clear"), _("Cancel")])

       subgrid = Grid(2, 2)
       subgrid.setField(devLabel, 0, 0, anchorLeft = 1)
       subgrid.setField(device, 1, 0, padding = (1, 0, 0, 0), anchorLeft = 1)
       subgrid.setField(bootLabel, 0, 1, anchorLeft = 1)
       subgrid.setField(newLabel, 1, 1, padding = (1, 0, 0, 0), anchorLeft = 1)

       g = GridForm(screen, _("Edit Boot Label"), 1, 2)
       g.add(subgrid, 0, 0, padding = (0, 0, 0, 1))
       g.add(buttons, 0, 1, growx = 1)

       result = ""
       while (result != string.lower(_("Ok")) and result != newLabel):
           result = g.run()
           if (buttons.buttonPressed(result)):
               result = buttons.buttonPressed(result)

           if (result == string.lower(_("Cancel"))):
               screen.popWindow ()
               return itemLabel
           elif (result == string.lower(_("Clear"))):
               newLabel.set("")

       screen.popWindow()

       return newLabel.value()

   def formatDevice(self, type, label, device, default):
       if (type == 2):
           type = "Linux extended"
       elif (type == 6):
           type = "SunOS/Solaris"
       else:
           type = "Other"

       if default == device:
           default = '*'
       else:
           default = ""

       return "%-10s  %-25s %-7s %-10s" % ( "/dev/" + device, type, default, label)

   def __call__(self, screen, todo):
       images = todo.getLiloImages()
       if not images: return INSTALL_NOOP
       if todo.skipLilo: return INSTALL_NOOP

       sortedKeys = images.keys()
       sortedKeys.sort()

       listboxLabel = Label("%-10s  %-25s %-7s %-10s" %
               ( _("Device"), _("Partition type"), _("Default"), _("Boot label")))
       listbox = Listbox(5, scroll = 1, returnExit = 1)

       default = ""

       for n in sortedKeys:
           (label, type) = images[n]
           listbox.append(self.formatDevice(type, label, n, default), n)

       buttons = ButtonBar(screen, [ (_("Ok"), "ok"), (_("Edit"), "edit"),
                                     (_("Back"), "back") ] )

       text = TextboxReflowed(55, _("The boot manager Red Hat uses can boot other "
                     "operating systems as well. You need to tell me "
                     "what partitions you would like to be able to boot "
                     "and what label you want to use for each of them."))

       title = _("SILO Configuration")
       g = GridForm(screen, title, 1, 4)
       g.add(text, 0, 0, anchorLeft = 1)
       g.add(listboxLabel, 0, 1, padding = (0, 1, 0, 0), anchorLeft = 1)
       g.add(listbox, 0, 2, padding = (0, 0, 0, 1), anchorLeft = 1)
       g.add(buttons, 0, 3, growx = 1)
       g.addHotKey("F2")

       result = None
       while (result != "ok" and result != "back" and result != "F12"):
           result = g.run()
           if (buttons.buttonPressed(result)):
               result = buttons.buttonPressed(result)

           if (result == string.lower(_("Edit")) or result == listbox):
               item = listbox.current()
               (label, type) = images[item]
               label = self.editItem(screen, item, label)
               images[item] = (label, type)
               if (default == item and not label):
                   default = ""
               listbox.replace(self.formatDevice(type, label, item, default), item)
               listbox.setCurrent(item)
           elif result == "F2":
               item = listbox.current()
               (label, type) = images[item]
               if (label):
                   if (default):
                       (oldLabel, oldType) = images[default]
                       listbox.replace(self.formatDevice(oldType, oldLabel, default,
                                       ""), default)
                   default = item
                   listbox.replace(self.formatDevice(type, label, item, default),
                                   item)
                   listbox.setCurrent(item)

       screen.popWindow()

       if (result == "back"):
           return INSTALL_BACK

       todo.setLiloImages(images)

       return INSTALL_OK

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