# -*-python-*-
# GemRB - Infinity Engine Emulator
# Copyright (C) 2003-2004 The GemRB Project
#
# 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.
#

import GemRB
from GUIDefines import *
from ie_stats import *
from ie_restype import RES_2DA
from ie_slots import *
import GameCheck
import GUICommon
import Spellbook
import CommonTables
import LUSpellSelection
import LUProfsSelection
import LUSkillsSelection

#######################
pc = 0
OldClassName = 0
OldKitName = 0
ClassName = 0
NewMageSpells = 0
NewPriestMask = 0
NewClassId = 0
DualClassTable = 0
#######################
DCMainWindow = 0
DCMainClassButton = 0
DCMainSkillsButton = 0
DCMainDoneButton = 0
DCMainStep = 0
#######################
DCClassWindow = 0
DCClassDoneButton = 0
DCClass = 0
DCClasses = []
#######################
DCProfsWindow = 0
DCProfsDoneButton = 0
#######################
DCSkillsWindow = 0
DCSkillsDoneButton = 0
#######################

def DualClassWindow ():
	"""Opens the dual class selection window."""

	global pc, OldClassName, NewMageSpells, NewPriestMask, NewClassId, OldKitName, DualClassTable
	global DCMainWindow, DCMainClassButton, DCMainDoneButton, DCMainSkillsButton, DCMainStep

	# get our basic globals
	pc = GemRB.GameGetSelectedPCSingle ()
	DCMainStep = 1

	# make sure to nullify old values
	NewPriestMask = 0
	NewMageSpells = 0
	NewClassId = 0
	
	# set up our main window
	DCMainWindow = GemRB.LoadWindow (5)

	# done button (off)
	DCMainDoneButton = DCMainWindow.GetControl (2)
	DCMainDoneButton.SetText (11973)
	DCMainDoneButton.SetEvent (IE_GUI_BUTTON_ON_PRESS, DCMainDonePress)
	DCMainDoneButton.SetState (IE_GUI_BUTTON_DISABLED)
	DCMainDoneButton.SetFlags (IE_GUI_BUTTON_DEFAULT, OP_OR)

	# cancel button (on)
	DCMainCancelButton = DCMainWindow.GetControl (1)
	DCMainCancelButton.SetText (13727)
	DCMainCancelButton.SetEvent (IE_GUI_BUTTON_ON_PRESS, DCMainCancelPress)
	DCMainCancelButton.SetState (IE_GUI_BUTTON_ENABLED)
	DCMainCancelButton.SetFlags (IE_GUI_BUTTON_DEFAULT, OP_OR)

	# class button (on)
	DCMainClassButton = DCMainWindow.GetControl (3)
	DCMainClassButton.SetText (11959)
	DCMainClassButton.SetEvent (IE_GUI_BUTTON_ON_PRESS, DCMainClassPress)
	DCMainClassButton.SetState (IE_GUI_BUTTON_ENABLED)
	DCMainClassButton.SetFlags (IE_GUI_BUTTON_DEFAULT, OP_OR)

	# skills button (off)
	DCMainSkillsButton = DCMainWindow.GetControl (4)
	DCMainSkillsButton.SetText (17372)
	DCMainSkillsButton.SetEvent (IE_GUI_BUTTON_ON_PRESS, DCMainSkillsPress)
	DCMainSkillsButton.SetState (IE_GUI_BUTTON_DISABLED)
	DCMainSkillsButton.SetFlags (IE_GUI_BUTTON_DEFAULT, OP_OR)

	# back button (on)
	DCMainBackButton = DCMainWindow.GetControl (5)
	if GameCheck.IsBG2():
		DCMainBackButton.SetText (15416)
	DCMainBackButton.SetEvent (IE_GUI_BUTTON_ON_PRESS, DCMainBackPress)
	DCMainBackButton.SetState (IE_GUI_BUTTON_ENABLED)
	DCMainBackButton.SetFlags (IE_GUI_BUTTON_DEFAULT, OP_OR)

	# picture of character
	DCMainPictureButton = DCMainWindow.GetControl (6)
	DCMainPictureButton.SetState (IE_GUI_BUTTON_LOCKED)
	DCMainPictureButton.SetFlags (IE_GUI_BUTTON_NO_IMAGE | IE_GUI_BUTTON_PICTURE, OP_SET)
	DCMainPictureButton.SetPicture (GemRB.GetPlayerPortrait (pc, 0), "NOPORTMD")

	# text area warning
	DCTextArea = DCMainWindow.GetControl (7)
	DCTextArea.SetText (10811)

	# character name
	DCLabel = DCMainWindow.GetControl (0x10000008)
	DCLabel.SetText (GemRB.GetPlayerName (pc, 0))

	# class name
	Kit = GUICommon.GetKitIndex (pc)
	OldClassName = GUICommon.GetClassRowName (pc)
	if Kit:
		OldKitName = CommonTables.KitList.GetValue (Kit, 0, GTV_STR)
	else:
		OldKitName = OldClassName
	DCLabel = DCMainWindow.GetControl (0x10000009)
	DCLabel.SetText (GUICommon.GetActorClassTitle (pc))

	# get the names of the classes we can dual to
	DualClassTable = GemRB.LoadTable ("dualclas")
	for i in range (DualClassTable.GetColumnCount ()):
		DCClasses.append (DualClassTable.GetColumnName (i))

	# show our window
	DCMainWindow.ShowModal (MODAL_SHADOW_GRAY)
	return

def DCMainDonePress ():
	"""Saves our dualclass changes and closes the window.

	This de-activates our old class and readjusts the basic actor stats, such as
	THAC0, spell casting, proficiencies, and so forth, to the new class."""
	import GUIREC
	global ClassName

	# save our proficiencies
	LUProfsSelection.ProfsSave (pc, LUProfsSelection.LUPROFS_TYPE_DUALCLASS)

	# remove old class abilities
	KitIndex = GUICommon.GetKitIndex (pc)
	if KitIndex:
		ABTable = CommonTables.KitList.GetValue (str(KitIndex), "ABILITIES")
	else:
		ABTable = CommonTables.ClassSkills.GetValue (OldClassName, "ABILITIES")
	if ABTable != "*" and GemRB.HasResource (ABTable, RES_2DA, 1):
		GUICommon.RemoveClassAbilities (pc, ABTable, GemRB.GetPlayerStat (pc, IE_LEVEL))

	# remove old class casting
	if not NewMageSpells:
		for i in range (9):
			GemRB.SetMemorizableSpellsCount (pc, 0, IE_SPELL_TYPE_WIZARD, i)
	Spellbook.RemoveKnownSpells (pc, IE_SPELL_TYPE_PRIEST, 1,7, 1)

	# apply our class abilities
	ABTable = CommonTables.ClassSkills.GetValue (ClassName, "ABILITIES")
	if ABTable != "*" and GemRB.HasResource (ABTable, RES_2DA, 1):
		GUICommon.AddClassAbilities (pc, ABTable)

	# learn our new priest spells
	if NewPriestMask:
		Spellbook.LearnPriestSpells (pc, 1, NewPriestMask)
		GemRB.SetMemorizableSpellsCount (pc, 1, IE_SPELL_TYPE_PRIEST, 0)

	# save our thief skills if we have them
	LUSkillsSelection.SkillsSave (pc)

	# save our new class and say was multi
	OldClassId = GemRB.GetPlayerStat (pc, IE_CLASS)
	MultClassId = (1 << (NewClassId-1)) | (1 << (OldClassId-1))
	MultClassId = CommonTables.Classes.FindValue ("MULTI", MultClassId)
	MultClassId = CommonTables.Classes.GetRowName (MultClassId)
	MultClassId = CommonTables.Classes.GetValue (MultClassId, "ID")
	GemRB.SetPlayerStat (pc, IE_CLASS, MultClassId)
	OldMCFlags = GemRB.GetPlayerStat (pc, IE_MC_FLAGS, 1)
	NewMCBit = CommonTables.Classes.GetValue (OldClassName, "MC_WAS_ID", GTV_INT)
	GemRB.SetPlayerStat (pc, IE_MC_FLAGS, OldMCFlags|NewMCBit)

	# update our levels and xp
	if GUICommon.IsDualSwap (pc):
		GemRB.SetPlayerStat (pc, IE_LEVEL2, 1)
	else:
		GemRB.SetPlayerStat (pc, IE_LEVEL2, GemRB.GetPlayerStat (pc, IE_LEVEL), 0)
		GemRB.SetPlayerStat (pc, IE_LEVEL, 1)
	GemRB.SetPlayerStat (pc, IE_XP, 0)

	# new thac0
	ThacoTable = GemRB.LoadTable ("THAC0")
	GemRB.SetPlayerStat (pc, IE_TOHIT, ThacoTable.GetValue (NewClassId-1, 0, GTV_INT))

	# new saves
	SavesTable = CommonTables.Classes.GetValue (ClassName, "SAVE", GTV_STR)
	SavesTable = GemRB.LoadTable (SavesTable)
	for i in range (5):
		GemRB.SetPlayerStat (pc, IE_SAVEVSDEATH+i, SavesTable.GetValue (i, 0))

	# dump any equipped items that are now unusable
	SlotTypes = [ SLOT_ARMOUR, SLOT_SHIELD, SLOT_HELM, SLOT_RING, SLOT_CLOAK, SLOT_BOOT, SLOT_AMULET, SLOT_GLOVE, SLOT_BELT, SLOT_ITEM, SLOT_WEAPON, SLOT_QUIVER ]
	for type in SlotTypes:
		Slots = GemRB.GetSlots (pc, type)
		if not len(Slots):
			# nothing there
			continue
		for slot in Slots:
			SlotType = GemRB.GetSlotType (slot, pc)
			CREItem = GemRB.GetSlotItem (pc, slot)
			if not GemRB.CanUseItemType (SlotType["Type"], CREItem["ItemResRef"], pc):
				# move it to a free inventory slot by mimicking dragging
				Item = GemRB.GetItem (CREItem["ItemResRef"])
				GemRB.DragItem (pc, slot, Item["ItemIcon"])
				if not GemRB.DropDraggedItem (pc, -3): # ASI_FAILED
					# inventory was probably too full, drop to ground
					GemRB.DropDraggedItem (pc, -2)

	# close our window
	if DCMainWindow:
		DCMainWindow.Unload ()
	GUIREC.UpdateRecordsWindow()
	return

def DCMainCancelPress ():
	"""Revert all changes and close the dual class window."""

	# simulate pressing the back button until we get back to DCMainStep = 1
	# to unset all things from the new class
	while DCMainStep > 1:
		DCMainBackPress ()

	# close our window
	if DCMainWindow:
		DCMainWindow.Unload ()

	return

def DCMainBackPress ():
	"""Reverts all current changes and reverts back to the previous step."""
	global DCMainStep, DCClass, NewMageSpells
	global NewPriestMask

	if DCMainStep == 2: # class selected, wait to choose skills
		# disable the skills button and re-enable the class button
		# the class will be reset when the class button is clicked
		DCMainSkillsButton.SetState (IE_GUI_BUTTON_DISABLED)
		DCMainClassButton.SetState (IE_GUI_BUTTON_ENABLED)

		# back a step
		DCMainStep = 1
	elif DCMainStep == 3: # skills selected
		# re-enable our skills button
		DCMainSkillsButton.SetState (IE_GUI_BUTTON_ENABLED)

		# un-learn our spells and skills
		if NewMageSpells:
			Spellbook.RemoveKnownSpells (pc, IE_SPELL_TYPE_WIZARD, 1,1, 1)

		LUSkillsSelection.SkillsNullify ()
		NewPriestMask = 0
		NewMageSpells = 0

		# go back a step
		DCMainStep = 2
	return

def DCMainClassPress ():
	"""Opens the class selection window."""

	global DCClassWindow, DCClassDoneButton, DCClass

	# we default the class back down to -1
	DCClass = -1
	GemRB.SetVar ("DCClass", DCClass)

	# open the window
	DCClassWindow = GemRB.LoadWindow (6)

	# string refs for the given classes
	DCClassStrings = []
	for classname in DCClasses:
		DCClassStrings.append(CommonTables.Classes.GetValue (classname, "NAME_REF", GTV_INT))

	# setup the class buttons
	for i in range (6):
		# get the button and associate it with the correct var
		DCClassButton = DCClassWindow.GetControl (i+1)
		DCClassButton.SetEvent (IE_GUI_BUTTON_ON_PRESS, DCClassSelect)
		DCClassButton.SetVarAssoc ("DCClass", i)
		DCClassButton.SetText (DCClassStrings[i])
		DCClassButton.SetFlags (IE_GUI_BUTTON_DEFAULT, OP_OR)

		# enable only if we can dual into the given class
		if CanDualInto (i):
			DCClassButton.SetState (IE_GUI_BUTTON_ENABLED)
		else:
			DCClassButton.SetState (IE_GUI_BUTTON_DISABLED)

	# done button (off)
	DCClassDoneButton = DCClassWindow.GetControl (8)
	DCClassDoneButton.SetText (11973)
	DCClassDoneButton.SetEvent (IE_GUI_BUTTON_ON_PRESS, DCClassDonePress)
	DCClassDoneButton.SetState (IE_GUI_BUTTON_DISABLED)
	DCClassDoneButton.SetFlags (IE_GUI_BUTTON_DEFAULT, OP_OR)

	# back button (on)
	DCClassBackButton = DCClassWindow.GetControl (7)
	DCClassBackButton.SetText (15416)
	DCClassBackButton.SetEvent (IE_GUI_BUTTON_ON_PRESS, DCClassBackPress)
	DCClassBackButton.SetState (IE_GUI_BUTTON_ENABLED)
	DCClassBackButton.SetFlags (IE_GUI_BUTTON_DEFAULT, OP_OR)

	# setup the text area with default text
	DCClassTextArea = DCClassWindow.GetControl (9)
	DCClassTextArea.SetText (10949)

	# show the window
	DCClassWindow.ShowModal (MODAL_SHADOW_GRAY)

	return

def DCClassSelect ():
	"""Updates the current class based on the button pressed."""

	global DCClass

	# un-select the old button and save and select the new one
	if DCClass >= 0:
		DCClassButton = DCClassWindow.GetControl (DCClass+1)
		DCClassButton.SetState (IE_GUI_BUTTON_ENABLED)

	# if we clicked the same class twice, turn the done button off (toggled)
	if DCClass == GemRB.GetVar ("DCClass"):
		DCClassDoneButton.SetState (IE_GUI_BUTTON_DISABLED)
		DCClass = -1
		
		# don't need to worry about setting a new text area, as it would be the same
		return

	# save the new class, select it's button, and enable the done button
	DCClass = GemRB.GetVar ("DCClass")
	DCClassButton = DCClassWindow.GetControl (DCClass+1)
	DCClassButton.SetState (IE_GUI_BUTTON_SELECTED)
	DCClassDoneButton.SetState (IE_GUI_BUTTON_ENABLED)

	# all the possible strrefs for the different classes
	DCClassStrings = []
	for classname in DCClasses:
		DCClassStrings.append (CommonTables.Classes.GetValue (classname, "DESC_REF", GTV_INT))

	# update the text are with the new string
	DCClassTextArea = DCClassWindow.GetControl (9)
	DCClassTextArea.SetText (DCClassStrings [DCClass])

	return

def DCClassDonePress ():
	"""Stores the selected class and moves to the next step."""

	global DCMainStep, ClassName, NewClassId

	# unload our class selection window
	if DCClassWindow:
		DCClassWindow.Unload ()
	DCMainWindow.ShowModal (MODAL_SHADOW_GRAY)

	# enable the skills button and disable the class selection button
	DCMainClassButton.SetState (IE_GUI_BUTTON_DISABLED)
	DCMainSkillsButton.SetState (IE_GUI_BUTTON_ENABLED)

	# save the class
	ClassName = DCClasses[DCClass]
	NewClassId = CommonTables.Classes.GetValue (ClassName, "ID", GTV_INT)

	# set our step to 2 so that the back button knows where we are
	DCMainStep = 2

	return

def CanDualInto (index):
	"""Determines if a given class can be dualed into.

	Index defines the position within the DCClasses list."""

	# make sure index isn't out of range
	if index < 0 or index >= len (DCClasses):
		return 0

	# return 0 if we can't dual into the class
	if not DualClassTable.GetValue (OldKitName, DCClasses[index], GTV_INT):
		return 0

	# make sure we aren't restricted by alignment
	AlignmentTable = GemRB.LoadTable ("alignmnt")
	Alignment = GemRB.GetPlayerStat (pc, IE_ALIGNMENT) # our alignment
	Alignment = CommonTables.Aligns.FindValue (3, Alignment)
	Alignment = CommonTables.Aligns.GetValue (Alignment, 4) # convert the alignment
	if not AlignmentTable.GetValue (DCClasses[index], Alignment, GTV_INT): # check it
		return 0

	# make sure we have the minimum stats required for the next class
	StatTable = GemRB.LoadTable ("abdcdsrq")
	ClassStatIndex = StatTable.GetRowIndex (DCClasses[index])
	for stat in range (6): # loop through each stat
		minimum = StatTable.GetValue (ClassStatIndex, stat)
		name = StatTable.GetColumnName (stat)
		if GemRB.GetPlayerStat (pc, eval("IE_" + name[4:])) < minimum: # see if we're under the minimum
			return 0

	# if we made it here, we can dual to the class
	return 1

def DCClassBackPress ():
	"""Unloads the class selection window without making any changes."""
	# close the class window
	if DCClassWindow:
		DCClassWindow.Unload ()
	return

def DCMainSkillsPress ():
	"""Opens the proficiency selection window.

	Then follows the skills proficiency and spells windows, if required."""

	global DCSkillsWindow, DCMainStep, DCHasProfs

	# we're onto the next step
	DCMainSkillsButton.SetState (IE_GUI_BUTTON_DISABLED)
	DCMainStep = 3

	DCOpenProfsWindow ()
	return

def DCOpenProfsWindow ():
	"""Opens the proficiency selection window."""

	global DCProfsWindow, DCProfsDoneButton

	# load up our window and set some basic variables
	DCProfsWindow = GemRB.LoadWindow (15)
	NewClassId = CommonTables.Classes.GetValue (ClassName, "ID", GTV_INT)
	if GameCheck.IsBG2():
		LUProfsSelection.SetupProfsWindow (pc, \
			LUProfsSelection.LUPROFS_TYPE_DUALCLASS, DCProfsWindow, DCProfsRedraw, classid=NewClassId)
	else:
		LUProfsSelection.SetupProfsWindow (pc, \
			LUProfsSelection.LUPROFS_TYPE_DUALCLASS, DCProfsWindow, \
			DCProfsRedraw, [0,0,0], [1,1,1], NewClassId, False, 0)

	# setup the done and cancel
	DCProfsDoneButton = DCProfsWindow.GetControl (76)
	DCProfsDoneButton.SetText (11973)
	DCProfsDoneButton.SetEvent (IE_GUI_BUTTON_ON_PRESS, DCProfsDonePress)
	DCProfsDoneButton.SetState (IE_GUI_BUTTON_DISABLED)
	DCProfsDoneButton.SetFlags (IE_GUI_BUTTON_DEFAULT, OP_OR)

	DCProfsCancelButton = DCProfsWindow.GetControl (77)
	DCProfsCancelButton.SetText (13727)
	DCProfsCancelButton.SetEvent (IE_GUI_BUTTON_ON_PRESS, DCProfsCancelPress)
	DCProfsCancelButton.SetState (IE_GUI_BUTTON_ENABLED)
	DCProfsCancelButton.SetFlags (IE_GUI_BUTTON_DEFAULT, OP_OR)

	# show the window and draw away
	DCProfsWindow.ShowModal (MODAL_SHADOW_GRAY)
	DCProfsRedraw ()
	return

def DCProfsRedraw ():
	"""Redraws the proficiency selection window.

	Called whenever a proficiency is assigned or removed."""

	ProfsPointsLeft = GemRB.GetVar ("ProfsPointsLeft")

	if ProfsPointsLeft == 0:
		DCProfsDoneButton.SetState (IE_GUI_BUTTON_ENABLED)
	else:
		DCProfsDoneButton.SetState (IE_GUI_BUTTON_DISABLED)
	return

def DCProfsDonePress ():
	"""Goes to the next applicable step.

	This is either skill selection, spell selection, or nothing."""

	global NewMageSpells, NewPriestMask

	# check for mage spells and thief skills
	SpellTable = CommonTables.ClassSkills.GetValue (ClassName, "MAGESPELL")
	ClericTable = CommonTables.ClassSkills.GetValue (ClassName, "CLERICSPELL")
	DruidTable = CommonTables.ClassSkills.GetValue (ClassName, "DRUIDSPELL")
	if SpellTable != "*":
		# we go 2,2 to get an extra spell
		# TODO: add a mod to the function instead?
		LUSpellSelection.OpenSpellsWindow (pc, SpellTable, 2, 2, 0)
		SpellTable = GemRB.LoadTable (SpellTable)
		GemRB.SetMemorizableSpellsCount (pc, SpellTable.GetValue (0, 0), IE_SPELL_TYPE_WIZARD, 0)
		NewMageSpells = 1
	if ClericTable != "*":
		print "Setting PriestMask"
		if not GemRB.HasResource(ClericTable, RES_2DA, 1):
			ClericTable = "MXSPLPRS" # iwd1 doesn't have a DRUIDSPELL column in the table
		# make sure we can cast spells at this level (paladins)
		ClericTable = GemRB.LoadTable (ClericTable)
		if ClericTable.GetRowName (0) == "1":
			NewPriestMask = 0x4000
	elif DruidTable != "*":
		# make sure we can cast spells at this level (rangers)
		if GameCheck.HasTOB ():
			DruidTable = GemRB.LoadTable (DruidTable)
			if DruidTable.GetRowName (0) == "1":
				NewPriestMask = 0x8000
		else:
			NewPriestMask = 0x8000

	# open the thieves selection window
	OpenSkillsWindow ()

	# we can be done now
	DCMainDoneButton.SetState (IE_GUI_BUTTON_ENABLED)

	# close out the profs window (don't assign yet!)
	if DCProfsWindow:
		DCProfsWindow.Unload ()
	return

def DCProfsCancelPress ():
	"""Closes the profeciency selection window."""

	# close out the profs window and go back a step
	if DCProfsWindow:
		DCProfsWindow.Unload ()

	DCMainBackPress ()
	return

def OpenSkillsWindow ():
	"""Opens the skills selection window.

	This will allow the selection of thief skills for appropriate classes, or
	auto-assign them for classes that recieve skills based on level."""

	global DCSkillsWindow, DCSkillsDoneButton

	DCSkillsWindow = GemRB.LoadWindow (7)
	if GameCheck.IsBG2():
		LUSkillsSelection.SetupSkillsWindow (pc, \
			LUSkillsSelection.LUSKILLS_TYPE_DUALCLASS, DCSkillsWindow, DCSkillsRedraw, classid=NewClassId)
	else:
		LUSkillsSelection.SetupSkillsWindow (pc, \
			LUSkillsSelection.LUSKILLS_TYPE_DUALCLASS, DCSkillsWindow, \
			DCSkillsRedraw, [0,0,0], [1,1,1], NewClassId, False)

	#just go back if we can't assign skills
	if GemRB.GetVar ("SkillPointsLeft") <= 0:
		return

	# setup the back and done buttons
	BackButton = DCSkillsWindow.GetControl(24)
	BackButton.SetText(15416)
	BackButton.SetFlags (IE_GUI_BUTTON_CANCEL, OP_OR)
	BackButton.SetEvent(IE_GUI_BUTTON_ON_PRESS,DCSkillsBackPress)

	DCSkillsDoneButton = DCSkillsWindow.GetControl(25)
	DCSkillsDoneButton.SetText(11973)
	DCSkillsDoneButton.SetFlags(IE_GUI_BUTTON_DEFAULT,OP_OR)
	DCSkillsDoneButton.SetEvent(IE_GUI_BUTTON_ON_PRESS, DCSkillsDonePress)
	DCSkillsDoneButton.SetState(IE_GUI_BUTTON_DISABLED)

	# setup the default text area
	TextArea = DCSkillsWindow.GetControl(22)
	TextArea.SetText(17248)

	DCSkillsWindow.ShowModal (MODAL_SHADOW_GRAY)
	DCSkillsRedraw ()
	GemRB.SetRepeatClickFlags(GEM_RK_DISABLE, OP_NAND)
	return

def DCSkillsRedraw ():
	"""Redraws the skills selection window.

	Called whenever a skill is assigned or removed."""

	# no points left? we can be done! :)
	DCSkillsLeft = GemRB.GetVar ("SkillPointsLeft")
	if DCSkillsLeft <= 0:
		DCSkillsDoneButton.SetState (IE_GUI_BUTTON_ENABLED)
	else:
		DCSkillsDoneButton.SetState (IE_GUI_BUTTON_DISABLED)

def DCSkillsBackPress ():
	"""Reverts all changes to this points."""

	if DCSkillsWindow:
		DCSkillsWindow.Unload ()
	LUSkillsSelection.SkillsNullify ()
	DCMainBackPress ()
	return

def DCSkillsDonePress ():
	"""Closes the skills selection window."""

	if DCSkillsWindow:
		DCSkillsWindow.Unload ()
	GemRB.SetRepeatClickFlags (GEM_RK_DISABLE, OP_OR)
	return
