uncomment necessary line

[enigma2.git] / lib / python / Components / config.py

diff --git a/lib/python/Components/config.py b/lib/python/Components/config.py
index 1486420c22d4f26cc927b84a9e5262b660affe50..b448ca6db4fc7f340a38e69c83194821f771d2ff 100644 (file)
--- a/lib/python/Components/config.py
+++ b/lib/python/Components/config.py
@@ -1,493 +1,1488 @@
-from time import *
-from Tools.NumericalTextInput import *
+import time
+from enigma import getPrevAsciiCode
+from Tools.NumericalTextInput import NumericalTextInput
+from Tools.Directories import resolveFilename, SCOPE_CONFIG
+from Components.Harddisk import harddiskmanager
+import copy
+import os

 
 

-class configFile:
+# ConfigElement, the base class of all ConfigElements.
+
+# it stores:
+#   value    the current value, usefully encoded.
+#            usually a property which retrieves _value,
+#            and maybe does some reformatting
+#   _value   the value as it's going to be saved in the configfile,
+#            though still in non-string form.
+#            this is the object which is actually worked on.
+#   default  the initial value. If _value is equal to default,
+#            it will not be stored in the config file
+#   saved_value is a text representation of _value, stored in the config file
+#
+# and has (at least) the following methods:
+#   save()   stores _value into saved_value, 
+#            (or stores 'None' if it should not be stored)
+#   load()   loads _value from saved_value, or loads
+#            the default if saved_value is 'None' (default)
+#            or invalid.
+#
+class ConfigElement(object):

        def __init__(self):
        def __init__(self):

-               self.changed = 0
-               self.configElements = { }
-               try:
-                       self.file = open("config")
-               except IOError:
-                       print "cannot open config file"
-                       return 
-               
-               while 1:
-                       line = self.file.readline()
-                       if line == "":
-                               break
-                       
-                       if line.startswith("#"):                #skip comments
-                               continue        
-                               
-                       self.addElement(line)
-               self.file.close()
-
-       def addElement(self, line):
-               x = line.find("=")
-               if x > -1:
-                       self.configElements[line[:x]] = line[x + 1:]
+
+               object.__init__(self)
+               self.saved_value = None
+               self.save_disabled = False
+               self.notifiers = []
+               self.enabled = True
+
+       # you need to override this to do input validation
+       def setValue(self, value):
+               self._value = value
+               self.changed()
+
+       def getValue(self):
+               return self._value

        
        

-       def getKey(self, key):
-               return self.configElements[key]
+       value = property(getValue, setValue)

 
 

-       def setKey(self, key, value):
-               self.changed = 1
-               self.configElements[key] = value
+       # you need to override this if self.value is not a string
+       def fromstring(self, value):
+               return value
+
+       # you can overide this for fancy default handling
+       def load(self):
+               sv = self.saved_value
+               if sv is None:
+                       self.value = self.default
+               else:
+                       self.value = self.fromstring(sv)

 
 

+       def tostring(self, value):
+               return str(value)
+
+       # you need to override this if str(self.value) doesn't work

        def save(self):
        def save(self):

-               if self.changed == 0:           #no changes, so no write to disk needed
-                       return
-                       
-               fileHandle = open("config", "w")
-               
-               keys = self.configElements.keys()
-               keys.sort()
-               for x in keys:
-                       wstr = x + "=" + self.configElements[x]
+               if self.save_disabled or self.value == self.default:
+                       self.saved_value = None
+               else:
+                       self.saved_value = self.tostring(self.value)
+
+       def cancel(self):
+               self.load()
+
+       def isChanged(self):
+               sv = self.saved_value
+               if sv is None and self.value == self.default:
+                       return False
+               return self.tostring(self.value) != sv
+
+       def changed(self):
+               for x in self.notifiers:
+                       x(self)

                        
                        

-                       if wstr[len(wstr) - 1] != '\n':
-                               wstr = wstr + "\n"
+       def addNotifier(self, notifier, initial_call = True):
+               assert callable(notifier), "notifiers must be callable"
+               self.notifiers.append(notifier)

 
 

-                       fileHandle.write(wstr)
+               # CHECKME:
+               # do we want to call the notifier
+               #  - at all when adding it? (yes, though optional)
+               #  - when the default is active? (yes)
+               #  - when no value *yet* has been set,
+               #    because no config has ever been read (currently yes)
+               #    (though that's not so easy to detect.
+               #     the entry could just be new.)
+               if initial_call:
+                       notifier(self)

 
 

-               fileHandle.close()              
+       def disableSave(self):
+               self.save_disabled = True

 
 

-class configSelection:
-       def __init__(self, parent):
-               self.parent = parent
-               
-       def checkValues(self):
-               if self.parent.value < 0:
-                       self.parent.value = 0   
+       def __call__(self, selected):
+               return self.getMulti(selected)

 
 

-               if(self.parent.value >= (len(self.parent.vals) - 1)):
-                       self.parent.value = len(self.parent.vals) - 1
+       def onSelect(self, session):
+               pass

 
 

-       def cancel(self):
-               self.parent.reload()
+       def onDeselect(self, session):
+               pass

 
 

-       def save(self):
-               self.parent.save()
+KEY_LEFT = 0
+KEY_RIGHT = 1
+KEY_OK = 2
+KEY_DELETE = 3
+KEY_BACKSPACE = 4
+KEY_HOME = 5
+KEY_END = 6
+KEY_TOGGLEOW = 7
+KEY_ASCII = 8
+KEY_TIMEOUT = 9
+KEY_NUMBERS = range(12, 12+10)
+KEY_0 = 12
+KEY_9 = 12+9

 
 

-       def handleKey(self, key):
-               if key == config.key["prevElement"]:
-                       self.parent.value = self.parent.value - 1
-               if key == config.key["nextElement"]:
-                       self.parent.value = self.parent.value + 1
+def getKeyNumber(key):
+       assert key in KEY_NUMBERS
+       return key - KEY_0
+
+#
+# ConfigSelection is a "one of.."-type.
+# it has the "choices", usually a list, which contains
+# (id, desc)-tuples (or just only the ids, in case the id
+# will be used as description)
+#
+# all ids MUST be plain strings.
+#
+class ConfigSelection(ConfigElement):
+       def __init__(self, choices, default = None):
+               ConfigElement.__init__(self)
+               self._value = None
+               self.setChoices(choices, default)
+
+       def setChoices(self, choices, default = None):
+               self.choices = []
+               self.description = {}
+               
+               if isinstance(choices, list):
+                       for x in choices:
+                               if isinstance(x, tuple):
+                                       self.choices.append(x[0])
+                                       self.description[x[0]] = x[1]
+                               else:
+                                       self.choices.append(x)
+                                       self.description[x] = x
+               elif isinstance(choices, dict):
+                       for (key, val) in choices.items():
+                               self.choices.append(key)
+                               self.description[key] = val
+               else:
+                       assert False, "ConfigSelection choices must be dict or list!"

                
                

-               self.checkValues()                      
+               #assert len(self.choices), "you can't have an empty configselection"
+               if len(self.choices) == 0:
+                       self.choices = [""]
+                       self.description[""] = ""

 
 

-               self.parent.change()    
+               if default is None:
+                       default = self.choices[0]

 
 

-       def __call__(self, selected):                   #needed by configlist
-               self.checkValues()
-               return ("text", self.parent.vals[self.parent.value])
+               assert default in self.choices, "default must be in choice list, but " + repr(default) + " is not!"
+               for x in self.choices:
+                       assert isinstance(x, str), "ConfigSelection choices must be strings"
+               
+               self.default = default

 
 

-class configDateTime:
-       def __init__(self, parent):
-               self.parent = parent
+               if self.value == None or not self.value in self.choices:
+                       self.value = default
+
+       def setValue(self, value):
+               if value in self.choices:
+                       self._value = value
+               else:
+                       self._value = self.default

                
                

-       def checkValues(self):
-               pass
-#              if self.parent.value < 0:
-                       #self.parent.value = 0  
+               self.changed()

 
 

-               #if(self.parent.value >= (len(self.parent.vals) - 1)):
-                       #self.parent.value = len(self.parent.vals) - 1
+       def tostring(self, val):
+               return val

 
 

-       def cancel(self):
-               self.parent.reload()
+       def getValue(self):
+               return self._value

 
 

-       def save(self):
-               self.parent.save()
+       def setCurrentText(self, text):
+               i = self.choices.index(self.value)
+               del self.description[self.choices[i]]
+               self.choices[i] = text
+               self.description[text] = text
+               self._value = text
+
+       value = property(getValue, setValue)
+       
+       def getIndex(self):
+               return self.choices.index(self.value)
+       
+       index = property(getIndex)

 
 

+       # GUI

        def handleKey(self, key):
        def handleKey(self, key):

-               if key == config.key["prevElement"]:
-                       self.parent.value = self.parent.value - self.parent.vals[1]
-               if key == config.key["nextElement"]:
-                       self.parent.value = self.parent.value + self.parent.vals[1]
-               
-               self.checkValues()
+               nchoices = len(self.choices)
+               i = self.choices.index(self.value)
+               if key == KEY_LEFT:
+                       self.value = self.choices[(i + nchoices - 1) % nchoices]
+               elif key == KEY_RIGHT:
+                       self.value = self.choices[(i + 1) % nchoices]
+               elif key == KEY_HOME:
+                       self.value = self.choices[0]
+               elif key == KEY_END:
+                       self.value = self.choices[nchoices - 1]
+                       
+       def selectNext(self):
+               nchoices = len(self.choices)
+               i = self.choices.index(self.value)
+               self.value = self.choices[(i + 1) % nchoices]

 
 

-               self.parent.change()    
+       def getText(self):
+               descr = self.description[self.value]
+               if len(descr):
+                       return _(descr)
+               return descr

 
 

-       def __call__(self, selected):                   #needed by configlist
-               self.checkValues()
-               return ("text", strftime(self.parent.vals[0], localtime(self.parent.value)))
-       
-class configSatlist:
-       def __init__(self, parent):
-               self.parent = parent
+       def getMulti(self, selected):
+               descr = self.description[self.value]
+               if len(descr):
+                       return ("text", _(descr))
+               return ("text", descr)

 
 

-       def checkValues(self):
-               if self.parent.value < 0:
-                       self.parent.value = 0   
+       # HTML
+       def getHTML(self, id):
+               res = ""
+               for v in self.choices:
+                       if self.value == v:
+                               checked = 'checked="checked" '
+                       else:
+                               checked = ''
+                       res += '<input type="radio" name="' + id + '" ' + checked + 'value="' + v + '">' + self.description[v] + "</input></br>\n"
+               return res;

 
 

-               if(self.parent.value >= (len(self.parent.vals) - 1)):
-                       self.parent.value = len(self.parent.vals) - 1
-                       
-       def cancel(self):
-               self.parent.reload()
+       def unsafeAssign(self, value):
+               # setValue does check if value is in choices. This is safe enough.
+               self.value = value

 
 

-       def save(self):
-               self.parent.save()
+# a binary decision.
+#
+# several customized versions exist for different
+# descriptions.
+#
+class ConfigBoolean(ConfigElement):
+       def __init__(self, default = False, descriptions = {False: "false", True: "true"}):
+               ConfigElement.__init__(self)
+               self.descriptions = descriptions
+               self.value = self.default = default
+       def handleKey(self, key):
+               if key in [KEY_LEFT, KEY_RIGHT]:
+                       self.value = not self.value
+               elif key == KEY_HOME:
+                       self.value = False
+               elif key == KEY_END:
+                       self.value = True
+
+       def getText(self):
+               descr = self.descriptions[self.value]
+               if len(descr):
+                       return _(descr)
+               return descr
+
+       def getMulti(self, selected):
+               descr = self.descriptions[self.value]
+               if len(descr):
+                       return ("text", _(descr))
+               return ("text", descr)
+
+       def tostring(self, value):
+               if not value:
+                       return "false"
+               else:
+                       return "true"
+
+       def fromstring(self, val):
+               if val == "true":
+                       return True
+               else:
+                       return False
+
+       def getHTML(self, id):
+               if self.value:
+                       checked = ' checked="checked"'
+               else:
+                       checked = ''
+               return '<input type="checkbox" name="' + id + '" value="1" ' + checked + " />"
+
+       # this is FLAWED. and must be fixed.
+       def unsafeAssign(self, value):
+               if value == "1":
+                       self.value = True
+               else:
+                       self.value = False
+
+class ConfigYesNo(ConfigBoolean):
+       def __init__(self, default = False):
+               ConfigBoolean.__init__(self, default = default, descriptions = {False: _("no"), True: _("yes")})
+
+class ConfigOnOff(ConfigBoolean):
+       def __init__(self, default = False):
+               ConfigBoolean.__init__(self, default = default, descriptions = {False: _("off"), True: _("on")})
+
+class ConfigEnableDisable(ConfigBoolean):
+       def __init__(self, default = False):
+               ConfigBoolean.__init__(self, default = default, descriptions = {False: _("disable"), True: _("enable")})
+
+class ConfigDateTime(ConfigElement):
+       def __init__(self, default, formatstring, increment = 86400):
+               ConfigElement.__init__(self)
+               self.increment = increment
+               self.formatstring = formatstring
+               self.value = self.default = int(default)

 
        def handleKey(self, key):
 
        def handleKey(self, key):

-               if key == config.key["prevElement"]:
-                       self.parent.value = self.parent.value - 1
-               if key == config.key["nextElement"]:
-                       self.parent.value = self.parent.value + 1
-               
-               self.checkValues()                      
+               if key == KEY_LEFT:
+                       self.value = self.value - self.increment
+               elif key == KEY_RIGHT:
+                       self.value = self.value + self.increment
+               elif key == KEY_HOME or key == KEY_END:
+                       self.value = self.default

 
 

-               self.parent.change()    
+       def getText(self):
+               return time.strftime(self.formatstring, time.localtime(self.value))

 
 

-       def __call__(self, selected):                   #needed by configlist
-               self.checkValues()
-               #fixme
-               return ("text", str(self.parent.vals[self.parent.value][0]))
-
-class configSequenceArg:
-       def get(self, type, args = ()):
-               # configsequencearg.get ("IP")
-               if (type == "IP"):
-                       return (("."), [(1,255),(0,255),(0,255),(0,255)], "")
-               # configsequencearg.get ("MAC")
-               if (type == "MAC"):
-                       return ((":"), [(1,255),(1,255),(1,255),(1,255),(1,255),(1,255)], "")
-               # configsequencearg.get ("CLOCK")
-               if (type == "CLOCK"):
-                       return ((":"), [(0,23),(0,59)], "")
-               # configsequencearg.get("INTEGER", (min, max)) => x with min <= x <= max
-               if (type == "INTEGER"):
-                       return ((":"), [args], "")
-               # configsequencearg.get("PINCODE", (number, "*")) => pin with number = length of pincode and "*" as numbers shown as stars
-               # configsequencearg.get("PINCODE", (number, "")) => pin with number = length of pincode and numbers shown
-               if (type == "PINCODE"):
-                       return ((":"), [(0, (10**args[0])-1)], args[1])
-               # configsequencearg.get("FLOAT", [(min,max),(min1,max1)]) => x.y with min <= x <= max and min1 <= y <= max1
-               if (type == "FLOAT"):
-                       return (("."), args, "")
-
-configsequencearg = configSequenceArg()
+       def getMulti(self, selected):
+               return ("text", time.strftime(self.formatstring, time.localtime(self.value)))
+
+       def fromstring(self, val):
+               return int(val)
+
+# *THE* mighty config element class
+#
+# allows you to store/edit a sequence of values.
+# can be used for IP-addresses, dates, plain integers, ...
+# several helper exist to ease this up a bit.
+#
+class ConfigSequence(ConfigElement):
+       def __init__(self, seperator, limits, censor_char = "", default = None):
+               ConfigElement.__init__(self)
+               assert isinstance(limits, list) and len(limits[0]) == 2, "limits must be [(min, max),...]-tuple-list"
+               assert censor_char == "" or len(censor_char) == 1, "censor char must be a single char (or \"\")"
+               #assert isinstance(default, list), "default must be a list"
+               #assert isinstance(default[0], int), "list must contain numbers"
+               #assert len(default) == len(limits), "length must match"
+
+               self.marked_pos = 0
+               self.seperator = seperator
+               self.limits = limits
+               self.censor_char = censor_char
+               
+               self.default = default
+               self.value = copy.copy(default)

                
                

-class configSequence:
-       def __init__(self, parent):
-               self.parent = parent
-               self.markedPos = 0
-               self.seperator = self.parent.vals[0]
-               self.valueBounds = self.parent.vals[1]
-               self.censorChar = self.parent.vals[2]
+               self.endNotifier = []

 
 

-       def checkValues(self):
-               maxPos = 0
+       def validate(self):
+               max_pos = 0

                num = 0
                num = 0

-               for i in self.parent.value:
-                       maxPos += len(str(self.valueBounds[num][1]))
-                       while (self.valueBounds[num][0] > self.parent.value[num]):
-                               self.parent.value[num] += 1
-
-                       while (self.valueBounds[num][1] < self.parent.value[num]):
-                               self.parent.value[num] -= 1
-                               
-#                      if (self.valueBounds[num][0] <= i <= self.valueBounds[num][1]):
-                               #pass
-                       #else:
-                               #self.parent.value[num] = self.valueBounds[num][0]
+               for i in self._value:
+                       max_pos += len(str(self.limits[num][1]))
+
+                       if self._value[num] < self.limits[num][0]:
+                               self._value[num] = self.limits[num][0]
+
+                       if self._value[num] > self.limits[num][1]:
+                               self._value[num] = self.limits[num][1]
+

                        num += 1
                        num += 1

-               
-               if self.markedPos >= maxPos:
-                       self.markedPos = maxPos - 1
-               if self.markedPos < 0:
-                       self.markedPos = 0
+
+               if self.marked_pos >= max_pos:
+                       for x in self.endNotifier:
+                               x(self)
+                       self.marked_pos = max_pos - 1
+
+               if self.marked_pos < 0:
+                       self.marked_pos = 0
+
+       def validatePos(self):
+               if self.marked_pos < 0:
+                       self.marked_pos = 0

                        
                        

-       def cancel(self):
-               self.parent.reload()
+               total_len = sum([len(str(x[1])) for x in self.limits])

 
 

-       def save(self):
-               self.parent.save()
+               if self.marked_pos >= total_len:
+                       self.marked_pos = total_len - 1
+                       
+       def addEndNotifier(self, notifier):
+               self.endNotifier.append(notifier)

 
        def handleKey(self, key):
 
        def handleKey(self, key):

-               #this will no change anything on the value itself
-               #so we can handle it here in gui element
-               if key == config.key["prevElement"]:
-                       self.markedPos -= 1
-               if key == config.key["nextElement"]:
-                       self.markedPos += 1
+               if key == KEY_LEFT:
+                       self.marked_pos -= 1
+                       self.validatePos()
+
+               if key == KEY_RIGHT:
+                       self.marked_pos += 1
+                       self.validatePos()
+               
+               if key == KEY_HOME:
+                       self.marked_pos = 0
+                       self.validatePos()
+
+               if key == KEY_END:
+                       max_pos = 0
+                       num = 0
+                       for i in self._value:
+                               max_pos += len(str(self.limits[num][1]))
+                               num += 1
+                       self.marked_pos = max_pos - 1
+                       self.validatePos()

                
                

-               if key >= config.key["0"] and key <= config.key["9"]:
-                       number = 9 - config.key["9"] + key
+               if key in KEY_NUMBERS or key == KEY_ASCII:
+                       if key == KEY_ASCII:
+                               code = getPrevAsciiCode()
+                               if code < 48 or code > 57:
+                                       return
+                               number = code - 48
+                       else:
+                               number = getKeyNumber(key)
+                       
+                       block_len = []
+                       for x in self.limits:
+                               block_len.append(len(str(x[1])))
+                       
+                       total_len = sum(block_len)
+
+                       pos = 0
+                       blocknumber = 0
+                       block_len_total = [0, ]
+                       for x in block_len:
+                               pos += block_len[blocknumber]
+                               block_len_total.append(pos)
+                               if pos - 1 >= self.marked_pos:
+                                       pass
+                               else:
+                                       blocknumber += 1
+

                        # length of numberblock
                        # length of numberblock

-                       numberLen = len(str(self.valueBounds[0][1]))
+                       number_len = len(str(self.limits[blocknumber][1]))
+

                        # position in the block
                        # position in the block

-                       posinblock = self.markedPos % numberLen
-                       # blocknumber
-                       blocknumber = self.markedPos / numberLen
+                       posinblock = self.marked_pos - block_len_total[blocknumber]

                        
                        

-                       oldvalue = self.parent.value[blocknumber]
-                       olddec = oldvalue % 10 ** (numberLen - posinblock) - (oldvalue % 10 ** (numberLen - posinblock - 1))
-                       newvalue = oldvalue - olddec + (10 ** (numberLen - posinblock - 1) * number)
+                       oldvalue = self._value[blocknumber]
+                       olddec = oldvalue % 10 ** (number_len - posinblock) - (oldvalue % 10 ** (number_len - posinblock - 1))
+                       newvalue = oldvalue - olddec + (10 ** (number_len - posinblock - 1) * number)

                        
                        

-                       print "You actually pressed a number (" + str(number) + ") which will be added at block number " + str(blocknumber) + " on position " + str(posinblock)
-                       print "Old value: " + str(oldvalue) + " olddec: " + str(olddec) + " newvalue: " + str(newvalue)
-                       self.parent.value[blocknumber] = newvalue
-                       self.markedPos += 1
-               
-               self.checkValues()                      
+                       self._value[blocknumber] = newvalue
+                       self.marked_pos += 1

                
                

-               print "markPos:",
-               print self.markedPos
-
-               #FIXME: dont call when press left/right
-               self.parent.change()    
-
-       def __call__(self, selected):                   #needed by configlist
+                       self.validate()
+                       self.changed()
+       
+       def genText(self):

                value = ""
                value = ""

-               mPos = self.markedPos
-               print "Positon: " + str(mPos)
+               mPos = self.marked_pos

                num = 0;
                num = 0;

-               for i in self.parent.value:
+               for i in self._value:

                        if len(value):  #fixme no heading separator possible
                                value += self.seperator
                                if mPos >= len(value) - 1:
                                        mPos += 1
                        if len(value):  #fixme no heading separator possible
                                value += self.seperator
                                if mPos >= len(value) - 1:
                                        mPos += 1

-                               
-                       #diff =         self.valueBounds - len(str(i))
-                       #if diff > 0:
-                               ## if this helps?!
-                               #value += " " * diff
-                       print (("%0" + str(len(str(self.valueBounds[num][1]))) + "d") % i)
-                       if (self.censorChar == ""):
-                               value += ("%0" + str(len(str(self.valueBounds[num][1]))) + "d") % i
+
+                       if self.censor_char == "":
+                               value += ("%0" + str(len(str(self.limits[num][1]))) + "d") % i

                        else:
                        else:

-                               value += (self.censorChar * len(str(self.valueBounds[num][1])))
+                               value += (self.censor_char * len(str(self.limits[num][1])))

                        num += 1
                        num += 1

+               return (value, mPos)
+               
+       def getText(self):
+               (value, mPos) = self.genText()
+               return value
+       
+       def getMulti(self, selected):
+               (value, mPos) = self.genText()

                        # only mark cursor when we are selected
                        # (this code is heavily ink optimized!)
                        # only mark cursor when we are selected
                        # (this code is heavily ink optimized!)

-               return ("mtext"[1-selected:], value, [mPos])
+               if self.enabled:
+                       return ("mtext"[1-selected:], value, [mPos])
+               else:
+                       return ("text", value)

 
 

-class configText:
-       # used as first parameter
-       # is the text of a fixed size or is the user able to extend the length of the text
-       extendableSize = 1
-       fixedSize = 2
+       def tostring(self, val):
+               return self.seperator.join([self.saveSingle(x) for x in val])
+       
+       def saveSingle(self, v):
+               return str(v)

 
 

-       def __init__(self, parent):
-               self.parent = parent
-               self.markedPos = 0
-               self.mode = self.parent.vals[0]
-               self.textInput = NumericalTextInput(self.nextEntry)
+       def fromstring(self, value):
+               return [int(x) for x in value.split(self.seperator)]

 
 

-       def checkValues(self):
-               if (self.markedPos < 0):
-                       self.markedPos = 0
-               if (self.markedPos >= len(self.parent.value)):
-                       self.markedPos = len(self.parent.value) - 1
+class ConfigIP(ConfigSequence):
+       def __init__(self, default, auto_jump = False):
+               ConfigSequence.__init__(self, seperator = ".", limits = [(0,255),(0,255),(0,255),(0,255)], default = default)
+               self.block_len = []
+               for x in self.limits:
+                       self.block_len.append(len(str(x[1])))
+               self.marked_block = 0
+               self.overwrite = True
+               self.auto_jump = auto_jump
+
+       def handleKey(self, key):
+               if key == KEY_LEFT:
+                       if self.marked_block > 0:
+                               self.marked_block -= 1
+                       self.overwrite = True
+
+               if key == KEY_RIGHT:
+                       if self.marked_block < len(self.limits)-1:
+                               self.marked_block += 1
+                       self.overwrite = True
+
+               if key == KEY_HOME:
+                       self.marked_block = 0
+                       self.overwrite = True
+
+               if key == KEY_END:
+                       self.marked_block = len(self.limits)-1
+                       self.overwrite = True
+
+               if key in KEY_NUMBERS:
+                       number = getKeyNumber(key)
+                       oldvalue = self._value[self.marked_block]

                        
                        

-       def cancel(self):
-               self.parent.reload()
+                       if self.overwrite:
+                               self._value[self.marked_block] = number
+                               self.overwrite = False          
+                       else:
+                               oldvalue *= 10
+                               newvalue = oldvalue + number
+                               if self.auto_jump and newvalue > self.limits[self.marked_block][1] and self.marked_block < len(self.limits)-1:
+                                       self.handleKey(KEY_RIGHT)
+                                       self.handleKey(key)
+                                       return
+                               else:
+                                       self._value[self.marked_block] = newvalue

 
 

-       def save(self):
-               self.parent.save()
+                       if len(str(self._value[self.marked_block])) >= self.block_len[self.marked_block]:
+                               self.handleKey(KEY_RIGHT)
+
+                       self.validate()
+                       self.changed()
+
+       def genText(self):
+               value = ""
+               block_strlen = []
+               for i in self._value:
+                       block_strlen.append(len(str(i)))        
+                       if len(value):
+                               value += self.seperator
+                       value += str(i)
+               leftPos = sum(block_strlen[:(self.marked_block)])+self.marked_block
+               rightPos = sum(block_strlen[:(self.marked_block+1)])+self.marked_block
+               mBlock = range(leftPos, rightPos)
+               return (value, mBlock)
+       
+       def getMulti(self, selected):
+               (value, mBlock) = self.genText()
+               if self.enabled:
+                       return ("mtext"[1-selected:], value, mBlock)
+               else:
+                       return ("text", value)
+
+       def getHTML(self, id):
+               # we definitely don't want leading zeros
+               return '.'.join(["%d" % d for d in self.value])
+
+class ConfigMAC(ConfigSequence):
+       def __init__(self, default):
+               ConfigSequence.__init__(self, seperator = ":", limits = [(1,255),(1,255),(1,255),(1,255),(1,255),(1,255)], default = default)
+
+class ConfigPosition(ConfigSequence):
+       def __init__(self, default, args):
+               ConfigSequence.__init__(self, seperator = ",", limits = [(0,args[0]),(0,args[1]),(0,args[2]),(0,args[3])], default = default)
+
+class ConfigClock(ConfigSequence):
+       def __init__(self, default):
+               import time
+               t = time.localtime(default)
+               ConfigSequence.__init__(self, seperator = ":", limits = [(0,23),(0,59)], default = [t.tm_hour, t.tm_min])
+
+class ConfigInteger(ConfigSequence):
+       def __init__(self, default, limits = (0, 9999999999)):
+               ConfigSequence.__init__(self, seperator = ":", limits = [limits], default = default)
+       
+       # you need to override this to do input validation
+       def setValue(self, value):
+               self._value = [value]
+               self.changed()
+
+       def getValue(self):
+               return self._value[0]
+       
+       value = property(getValue, setValue)
+
+       def fromstring(self, value):
+               return int(value)
+
+       def tostring(self, value):
+               return str(value)
+
+class ConfigPIN(ConfigInteger):
+       def __init__(self, default, len = 4, censor = ""):
+               assert isinstance(default, int), "ConfigPIN default must be an integer"
+               if default == -1:
+                       default = "aaaa"
+               ConfigSequence.__init__(self, seperator = ":", limits = [(0, (10**len)-1)], censor_char = censor, default = default)
+               self.len = len
+
+       def getLength(self):
+               return self.len
+
+class ConfigFloat(ConfigSequence):
+       def __init__(self, default, limits):
+               ConfigSequence.__init__(self, seperator = ".", limits = limits, default = default)
+
+       def getFloat(self):
+               return float(self.value[1] / float(self.limits[1][1] + 1) + self.value[0])
+
+       float = property(getFloat)
+
+# an editable text...
+class ConfigText(ConfigElement, NumericalTextInput):
+       def __init__(self, default = "", fixed_size = True, visible_width = False):
+               ConfigElement.__init__(self)
+               NumericalTextInput.__init__(self, nextFunc = self.nextFunc, handleTimeout = False)

                
                

-       def nextEntry(self):
-               print "Next entry"
-               self.handleKey(config.key["nextElement"])
+               self.marked_pos = 0
+               self.allmarked = (default != "")
+               self.fixed_size = fixed_size
+               self.visible_width = visible_width
+               self.offset = 0
+               self.overwrite = fixed_size
+               self.help_window = None
+               self.value = self.default = default
+
+       def validateMarker(self):
+               if self.fixed_size:
+                       if self.marked_pos > len(self.text)-1:
+                               self.marked_pos = len(self.text)-1
+               else:
+                       if self.marked_pos > len(self.text):
+                               self.marked_pos = len(self.text)
+               if self.marked_pos < 0:
+                       self.marked_pos = 0
+               if self.visible_width:
+                       if self.marked_pos < self.offset:
+                               self.offset = self.marked_pos
+                       if self.marked_pos >= self.offset + self.visible_width:
+                               if self.marked_pos == len(self.text):
+                                       self.offset = self.marked_pos - self.visible_width
+                               else:
+                                       self.offset = self.marked_pos - self.visible_width + 1
+                       if self.offset > 0 and self.offset + self.visible_width > len(self.text):
+                               self.offset = max(0, len(self.text) - self.visible_width)
+
+       def insertChar(self, ch, pos, owr):
+               if owr or self.overwrite:
+                       self.text = self.text[0:pos] + ch + self.text[pos + 1:]
+               elif self.fixed_size:
+                       self.text = self.text[0:pos] + ch + self.text[pos:-1]
+               else:
+                       self.text = self.text[0:pos] + ch + self.text[pos:]
+
+       def deleteChar(self, pos):
+               if not self.fixed_size:
+                       self.text = self.text[0:pos] + self.text[pos + 1:]
+               elif self.overwrite:
+                       self.text = self.text[0:pos] + " " + self.text[pos + 1:]
+               else:
+                       self.text = self.text[0:pos] + self.text[pos + 1:] + " "
+
+       def deleteAllChars(self):
+               if self.fixed_size:
+                       self.text = " " * len(self.text)
+               else:
+                       self.text = ""
+               self.marked_pos = 0

 
        def handleKey(self, key):
 
        def handleKey(self, key):

-               #this will no change anything on the value itself
-               #so we can handle it here in gui element
-               if key == config.key["prevElement"]:
-                       self.textInput.nextKey()
-                       self.markedPos -= 1
-
-               if key == config.key["nextElement"]:
-                       self.textInput.nextKey()
-                       self.markedPos += 1
-                       if (self.mode == self.extendableSize):
-                               if (self.markedPos >= len(self.parent.value)):
-                                       self.parent.value = self.parent.value.ljust(len(self.parent.value) + 1)
+               # this will no change anything on the value itself
+               # so we can handle it here in gui element
+               if key == KEY_DELETE:
+                       self.timeout()
+                       if self.allmarked:
+                               self.deleteAllChars()
+                               self.allmarked = False
+                       else:
+                               self.deleteChar(self.marked_pos)
+                               if self.fixed_size and self.overwrite:
+                                       self.marked_pos += 1
+               elif key == KEY_BACKSPACE:
+                       self.timeout()
+                       if self.allmarked:
+                               self.deleteAllChars()
+                               self.allmarked = False
+                       elif self.marked_pos > 0:
+                               self.deleteChar(self.marked_pos-1)
+                               if not self.fixed_size and self.offset > 0:
+                                       self.offset -= 1
+                               self.marked_pos -= 1
+               elif key == KEY_LEFT:
+                       self.timeout()
+                       if self.allmarked:
+                               self.marked_pos = len(self.text)
+                               self.allmarked = False
+                       else:
+                               self.marked_pos -= 1
+               elif key == KEY_RIGHT:
+                       self.timeout()
+                       if self.allmarked:
+                               self.marked_pos = 0
+                               self.allmarked = False
+                       else:
+                               self.marked_pos += 1
+               elif key == KEY_HOME:
+                       self.timeout()
+                       self.allmarked = False
+                       self.marked_pos = 0
+               elif key == KEY_END:
+                       self.timeout()
+                       self.allmarked = False
+                       self.marked_pos = len(self.text)
+               elif key == KEY_TOGGLEOW:
+                       self.timeout()
+                       self.overwrite = not self.overwrite
+               elif key == KEY_ASCII:
+                       self.timeout()
+                       newChar = unichr(getPrevAsciiCode())
+                       if self.allmarked:
+                               self.deleteAllChars()
+                               self.allmarked = False
+                       self.insertChar(newChar, self.marked_pos, False)
+                       self.marked_pos += 1
+               elif key in KEY_NUMBERS:
+                       owr = self.lastKey == getKeyNumber(key)
+                       newChar = self.getKey(getKeyNumber(key))
+                       if self.allmarked:
+                               self.deleteAllChars()
+                               self.allmarked = False
+                       self.insertChar(newChar, self.marked_pos, owr)
+               elif key == KEY_TIMEOUT:
+                       self.timeout()
+                       if self.help_window:
+                               self.help_window.update(self)
+                       return
+
+               if self.help_window:
+                       self.help_window.update(self)
+               self.validateMarker()
+               self.changed()
+
+       def nextFunc(self):
+               self.marked_pos += 1
+               self.validateMarker()
+               self.changed()
+
+       def getValue(self):
+               return self.text.encode("utf-8")
+               
+       def setValue(self, val):
+               try:
+                       self.text = val.decode("utf-8")
+               except UnicodeDecodeError:
+                       self.text = val
+                       print "Broken UTF8!"
+
+       value = property(getValue, setValue)
+       _value = property(getValue, setValue)
+
+       def getText(self):
+               return self.text.encode("utf-8")
+
+       def getMulti(self, selected):
+               if self.visible_width:
+                       if self.allmarked:
+                               mark = range(0, min(self.visible_width, len(self.text)))
+                       else:
+                               mark = [self.marked_pos-self.offset]
+                       return ("mtext"[1-selected:], self.text[self.offset:self.offset+self.visible_width].encode("utf-8")+" ", mark)
+               else:
+                       if self.allmarked:
+                               mark = range(0, len(self.text))
+                       else:
+                               mark = [self.marked_pos]
+                       return ("mtext"[1-selected:], self.text.encode("utf-8")+" ", mark)
+
+       def onSelect(self, session):
+               self.allmarked = (self.value != "")
+               if session is not None:
+                       from Screens.NumericalTextInputHelpDialog import NumericalTextInputHelpDialog
+                       self.help_window = session.instantiateDialog(NumericalTextInputHelpDialog, self)
+                       self.help_window.show()
+
+       def onDeselect(self, session):
+               self.marked_pos = 0
+               self.offset = 0
+               if self.help_window:
+                       session.deleteDialog(self.help_window)
+                       self.help_window = None
+
+       def getHTML(self, id):
+               return '<input type="text" name="' + id + '" value="' + self.value + '" /><br>\n'
+
+       def unsafeAssign(self, value):
+               self.value = str(value)
+
+class ConfigPassword(ConfigText):
+       def __init__(self, default = "", fixed_size = False, visible_width = False, censor = "*"):
+               ConfigText.__init__(self, default = default, fixed_size = fixed_size, visible_width = visible_width)
+               self.censor_char = censor
+               self.hidden = True
+
+       def getMulti(self, selected):
+               mtext, text, mark = ConfigText.getMulti(self, selected)
+               if self.hidden:
+                       text = len(text) * self.censor_char
+               return (mtext, text, mark)

                        
                        

-                               
-               if key >= config.key["0"] and key <= config.key["9"]:
-                       number = 9 - config.key["9"] + key
+       def onSelect(self, session):
+               ConfigText.onSelect(self, session)
+               self.hidden = False
+
+       def onDeselect(self, session):
+               ConfigText.onDeselect(self, session)
+               self.hidden = True

 
 

-                       self.parent.value = self.parent.value[0:self.markedPos] + str(self.textInput.getKey(number)) + self.parent.value[self.markedPos + 1:]
+class ConfigNumber(ConfigText):
+       def __init__(self, default = 0):
+               ConfigText.__init__(self, str(default), fixed_size = False)
+
+       def getValue(self):
+               return int(self.text)

                
                

-               self.checkValues()                      
+       def setValue(self, val):
+               self.text = str(val)
+
+       value = property(getValue, setValue)
+       _value = property(getValue, setValue)
+
+       def conform(self):
+               pos = len(self.text) - self.marked_pos
+               self.text = self.text.lstrip("0")
+               if self.text == "":
+                       self.text = "0"
+               if pos > len(self.text):
+                       self.marked_pos = 0
+               else:
+                       self.marked_pos = len(self.text) - pos
+
+       def handleKey(self, key):
+               if key in KEY_NUMBERS or key == KEY_ASCII:
+                       if key == KEY_ASCII:
+                               ascii = getPrevAsciiCode()
+                               if not (48 <= ascii <= 57):
+                                       return
+                       else:
+                               ascii = getKeyNumber(key) + 48
+                       newChar = unichr(ascii)
+                       if self.allmarked:
+                               self.deleteAllChars()
+                               self.allmarked = False
+                       self.insertChar(newChar, self.marked_pos, False)
+                       self.marked_pos += 1
+               else:
+                       ConfigText.handleKey(self, key)
+               self.conform()
+
+       def onSelect(self, session):
+               self.allmarked = (self.value != "")
+
+       def onDeselect(self, session):
+               self.marked_pos = 0
+               self.offset = 0
+
+# a slider.
+class ConfigSlider(ConfigElement):
+       def __init__(self, default = 0, increment = 1, limits = (0, 100)):
+               ConfigElement.__init__(self)
+               self.value = self.default = default
+               self.min = limits[0]
+               self.max = limits[1]
+               self.increment = increment
+
+       def checkValues(self):
+               if self.value < self.min:
+                       self.value = self.min
+
+               if self.value > self.max:
+                       self.value = self.max
+
+       def handleKey(self, key):
+               if key == KEY_LEFT:
+                       self.value -= self.increment
+               elif key == KEY_RIGHT:
+                       self.value += self.increment
+               elif key == KEY_HOME:
+                       self.value = self.min
+               elif key == KEY_END:
+                       self.value = self.max
+               else:
+                       return
+               self.checkValues()
+
+       def getText(self):
+               return "%d / %d" % (self.value, self.max)
+
+       def getMulti(self, selected):
+               self.checkValues()
+               return ("slider", self.value, self.max)
+
+       def fromstring(self, value):
+               return int(value)
+
+# a satlist. in fact, it's a ConfigSelection.
+class ConfigSatlist(ConfigSelection):
+       def __init__(self, list, default = None):
+               if default is not None:
+                       default = str(default)
+               ConfigSelection.__init__(self, choices = [(str(orbpos), desc) for (orbpos, desc, flags) in list], default = default)
+
+       def getOrbitalPosition(self):
+               if self.value == "":
+                       return None
+               return int(self.value)
+       
+       orbital_position = property(getOrbitalPosition)
+
+class ConfigSet(ConfigElement):
+       def __init__(self, choices, default = []):
+               ConfigElement.__init__(self)
+               self.choices = []
+               self.description = {}
+               if isinstance(choices, list):
+                       choices.sort()
+                       for x in choices:
+                               if isinstance(x, tuple):
+                                       self.choices.append(x[0])
+                                       self.description[x[0]] = str(x[1])
+                               else:
+                                       self.choices.append(x)
+                                       self.description[x] = str(x)
+               else:
+                       assert False, "ConfigSet choices must be a list!"
+               if len(self.choices) == 0:
+                       self.choices = [""]
+                       self.description[""] = ""
+               if default is None:
+                       default = []
+               self.pos = -1
+               default.sort()
+               self.default = default
+               self.value = default+[]
+
+       def toggleChoice(self, choice):
+               if choice in self.value:
+                       self.value.remove(choice)
+               else:
+                       self.value.append(choice)
+                       self.value.sort()
+
+       def handleKey(self, key):
+               if key in KEY_NUMBERS + [KEY_DELETE, KEY_BACKSPACE]:
+                       if self.pos != -1:
+                               self.toggleChoice(self.choices[self.pos])
+               elif key == KEY_LEFT:
+                       self.pos -= 1
+                       if self.pos < -1:
+                           self.pos = len(self.choices)-1
+               elif key == KEY_RIGHT:
+                       self.pos += 1
+                       if self.pos >= len(self.choices):
+                           self.pos = -1
+               elif key in [KEY_HOME, KEY_END]:
+                       self.pos = -1
+
+       def genString(self, lst):
+               res = ""
+               for x in lst:
+                       res += self.description[x]+" "
+               return res
+
+       def getText(self):
+               return self.genString(self.value)
+
+       def getMulti(self, selected):
+               if not selected or self.pos == -1:
+                       return ("text", self.genString(self.value))
+               else:
+                       tmp = self.value+[]
+                       ch = self.choices[self.pos]
+                       mem = ch in self.value
+                       if not mem:
+                               tmp.append(ch)
+                               tmp.sort()
+                       ind = tmp.index(ch)
+                       val1 = self.genString(tmp[:ind])
+                       val2 = " "+self.genString(tmp[ind+1:])
+                       if mem:
+                               chstr = " "+self.description[ch]+" "
+                       else:
+                               chstr = "("+self.description[ch]+")"
+                       return ("mtext", val1+chstr+val2, range(len(val1),len(val1)+len(chstr)))
+
+       def onDeselect(self, session):
+               self.pos = -1
+               self.changed()

                
                

-               self.parent.change()    
+       def tostring(self, value):
+               return str(value)
+
+       def fromstring(self, val):
+               return eval(val)
+
+class ConfigLocations(ConfigElement):
+       def __init__(self, default = [], visible_width = False):
+               ConfigElement.__init__(self)
+               self.visible_width = visible_width
+               self.pos = -1
+               self.default = default
+               self.locations = []
+               self.mountpoints = []
+               harddiskmanager.on_partition_list_change.append(self.mountpointsChanged)
+
+       def setValue(self, value):
+               loc = [x[0] for x in self.locations if x[3]]
+               add = [x for x in value if not x in loc]
+               diff = add + [x for x in loc if not x in value]
+               self.locations = [x for x in self.locations if not x[0] in diff] + [[x, self.getMountpoint(x), True, True] for x in add]
+               self.locations.sort(key = lambda x: x[0])
+               self.changed()
+
+       def getValue(self):
+               self.checkChangedMountpoints()
+               for x in self.locations:
+                       x[3] = x[2]
+               return [x[0] for x in self.locations if x[3]]
+       
+       value = property(getValue, setValue)
+
+       def tostring(self, value):
+               return str(value)
+
+       def fromstring(self, val):
+               return eval(val)

 
 

-       def __call__(self, selected):                   #needed by configlist
-               return ("mtext"[1-selected:], str(self.parent.value), [self.markedPos])
+       def load(self):
+               sv = self.saved_value
+               if sv is None:
+                       tmp = self.default
+               else:
+                       tmp = self.fromstring(sv)
+               self.locations = [[x, None, False, False] for x in tmp]
+               self.refreshMountpoints()
+               for x in self.locations:
+                       if os.path.exists(x[0]):
+                               x[1] = self.getMountpoint(x[0])
+                               x[2] = True
+
+       def save(self):
+               if self.save_disabled or self.locations == []:
+                       self.saved_value = None
+               else:
+                       self.saved_value = self.tostring([x[0] for x in self.locations])
+
+       def isChanged(self):
+               sv = self.saved_value
+               if val is None and self.locations == []:
+                       return False
+               return self.tostring([x[0] for x in self.locations]) != sv
+
+       def mountpointsChanged(self, action, dev):
+               print "Mounts changed: ", action, dev
+               mp = dev.mountpoint+"/"
+               if action == "add":
+                       self.addedMount(mp)
+               elif action == "remove":
+                       self.removedMount(mp)
+               self.refreshMountpoints()
+
+       def addedMount(self, mp):
+               for x in self.locations:
+                       if x[1] == mp:
+                               x[2] = True
+                       elif x[1] == None and os.path.exists(x[0]):
+                               x[1] = self.getMountpoint(x[0])
+                               x[2] = True
+
+       def removedMount(self, mp):
+               for x in self.locations:
+                       if x[1] == mp:
+                               x[2] = False

                
                

-class configValue:
-       def __init__(self, obj):
-               self.obj = obj
+       def refreshMountpoints(self):
+               self.mountpoints = [p.mountpoint + "/" for p in harddiskmanager.getMountedPartitions() if p.mountpoint != "/"]
+               self.mountpoints.sort(key = lambda x: -len(x))
+
+       def checkChangedMountpoints(self):
+               oldmounts = self.mountpoints
+               self.refreshMountpoints()
+               if oldmounts == self.mountpoints:
+                       return
+               for x in oldmounts:
+                       if not x in self.mountpoints:
+                               self.removedMount(x)
+               for x in self.mountpoints:
+                       if not x in oldmounts:
+                               self.addedMount(x)
+
+       def getMountpoint(self, file):
+               file = os.path.realpath(file)+"/"
+               for m in self.mountpoints:
+                       if file.startswith(m):
+                               return m
+               return None
+
+       def handleKey(self, key):
+               if key == KEY_LEFT:
+                       self.pos -= 1
+                       if self.pos < -1:
+                           self.pos = len(self.value)-1
+               elif key == KEY_RIGHT:
+                       self.pos += 1
+                       if self.pos >= len(self.value):
+                           self.pos = -1
+               elif key in [KEY_HOME, KEY_END]:
+                       self.pos = -1
+
+       def getText(self):
+               return " ".join(self.value)
+
+       def getMulti(self, selected):
+               if not selected:
+                       valstr = " ".join(self.value)
+                       if self.visible_width and len(valstr) > self.visible_width:
+                               return ("text", valstr[0:self.visible_width])
+                       else:
+                               return ("text", valstr)
+               else:
+                       i = 0
+                       valstr = ""
+                       ind1 = 0
+                       ind2 = 0
+                       for val in self.value:
+                               if i == self.pos:
+                                       ind1 = len(valstr)
+                               valstr += str(val)+" "
+                               if i == self.pos:
+                                       ind2 = len(valstr)
+                               i += 1
+                       if self.visible_width and len(valstr) > self.visible_width:
+                               if ind1+1 < self.visible_width/2:
+                                       off = 0
+                               else:
+                                       off = min(ind1+1-self.visible_width/2, len(valstr)-self.visible_width)
+                               return ("mtext", valstr[off:off+self.visible_width], range(ind1-off,ind2-off))
+                       else:
+                               return ("mtext", valstr, range(ind1,ind2))
+
+       def onDeselect(self, session):
+               self.pos = -1

                
                

-       def __str__(self):
-               return self.obj
+# nothing.
+class ConfigNothing(ConfigSelection):
+       def __init__(self):
+               ConfigSelection.__init__(self, choices = [""])
+
+# until here, 'saved_value' always had to be a *string*.
+# now, in ConfigSubsection, and only there, saved_value
+# is a dict, essentially forming a tree.
+#
+# config.foo.bar=True
+# config.foobar=False
+#
+# turns into:
+# config.saved_value == {"foo": {"bar": "True"}, "foobar": "False"}
+#
+
+
+class ConfigSubsectionContent(object):
+       pass

 
 

-class Config:
+# we store a backup of the loaded configuration
+# data in self.stored_values, to be able to deploy
+# them when a new config element will be added,
+# so non-default values are instantly available
+
+# A list, for example:
+# config.dipswitches = ConfigSubList()
+# config.dipswitches.append(ConfigYesNo())
+# config.dipswitches.append(ConfigYesNo())
+# config.dipswitches.append(ConfigYesNo())
+class ConfigSubList(list, object):

        def __init__(self):
        def __init__(self):

-               self.key = { "choseElement": 0,
-                                        "prevElement": 1,
-                                        "nextElement": 2,
-                                        "0": 10,
-                                        "1": 11,
-                                        "2": 12,
-                                        "3": 13,
-                                        "4": 14,
-                                        "5": 15,
-                                        "6": 16,
-                                        "7": 17,
-                                        "8": 18,
-                                        "9": 19 }
-               
-config = Config();
-configfile = configFile()
+               object.__init__(self)
+               list.__init__(self)
+               self.stored_values = {}
+
+       def save(self):
+               for x in self:
+                       x.save()
+       
+       def load(self):
+               for x in self:
+                       x.load()

 
 

-class ConfigSlider:
-       def __init__(self, parent):
-               self.parent = parent
+       def getSavedValue(self):
+               res = {}
+               for i in range(len(self)):
+                       sv = self[i].saved_value
+                       if sv is not None:
+                               res[str(i)] = sv
+               return res

 
 

-       def cancel(self):
-               self.parent.reload()
+       def setSavedValue(self, values):
+               self.stored_values = dict(values)
+               for (key, val) in self.stored_values.items():
+                       if int(key) < len(self):
+                               self[int(key)].saved_value = val
+
+       saved_value = property(getSavedValue, setSavedValue)
+
+       def append(self, item):
+               i = str(len(self))
+               list.append(self, item)
+               if i in self.stored_values:
+                       item.saved_value = self.stored_values[i]
+                       item.load()
+
+       def dict(self):
+               res = dict()
+               for index in range(len(self)):
+                       res[str(index)] = self[index]
+               return res
+
+# same as ConfigSubList, just as a dictionary.
+# care must be taken that the 'key' has a proper
+# str() method, because it will be used in the config
+# file.
+class ConfigSubDict(dict, object):
+       def __init__(self):
+               object.__init__(self)
+               dict.__init__(self)
+               self.stored_values = {}

 
        def save(self):
 
        def save(self):

-               self.parent.save()
+               for x in self.values():
+                       x.save()
+       
+       def load(self):
+               for x in self.values():
+                       x.load()

 
 

-       def checkValues(self):
-               if self.parent.value < 0:
-                       self.parent.value = 0   
+       def getSavedValue(self):
+               res = {}
+               for (key, val) in self.items():
+                       sv = val.saved_value
+                       if sv is not None:
+                               res[str(key)] = sv
+               return res

 
 

-               if self.parent.value > 10:
-                       self.parent.value = 10  
+       def setSavedValue(self, values):
+               self.stored_values = dict(values)
+               for (key, val) in self.items():
+                       if str(key) in self.stored_values:
+                               val = self.stored_values[str(key)]

 
 

-       def handleKey(self, key):
-               if key == config.key["prevElement"]:
-                       self.parent.value = self.parent.value - 1
-               if key == config.key["nextElement"]:
-                       self.parent.value = self.parent.value + 1
-                                       
-               self.checkValues()      
-               self.parent.change()    
-
-       def __call__(self, selected):                   #needed by configlist
-               self.checkValues()
-               return ("slider", self.parent.value * 10)
+       saved_value = property(getSavedValue, setSavedValue)
+
+       def __setitem__(self, key, item):
+               dict.__setitem__(self, key, item)
+               if str(key) in self.stored_values:
+                       item.saved_value = self.stored_values[str(key)]
+                       item.load()

 
 

-class ConfigSubsection:
+       def dict(self):
+               return self
+
+# Like the classes above, just with a more "native"
+# syntax.
+#
+# some evil stuff must be done to allow instant
+# loading of added elements. this is why this class
+# is so complex.
+#
+# we need the 'content' because we overwrite 
+# __setattr__.
+# If you don't understand this, try adding
+# __setattr__ to a usual exisiting class and you will.
+class ConfigSubsection(object):

        def __init__(self):
        def __init__(self):

-               pass
+               object.__init__(self)
+               self.__dict__["content"] = ConfigSubsectionContent()
+               self.content.items = { }
+               self.content.stored_values = { }
+       
+       def __setattr__(self, name, value):
+               if name == "saved_value":
+                       return self.setSavedValue(value)
+               assert isinstance(value, ConfigSubsection) or isinstance(value, ConfigElement) or isinstance(value, ConfigSubList) or isinstance(value, ConfigSubDict), "ConfigSubsections can only store ConfigSubsections, ConfigSubLists, ConfigSubDicts or ConfigElements"
+               self.content.items[name] = value
+               if name in self.content.stored_values:
+                       #print "ok, now we have a new item,", name, "and have the following value for it:", self.content.stored_values[name]
+                       value.saved_value = self.content.stored_values[name]
+                       value.load()

 
 

-class configElement:
-
-       def getIndexbyEntry(self, data):
-               cnt = 0;
-               tcnt = -1; #for defaultval
-               for x in self.vals:
-                       if int(x[1]) == int(data):
-                                       return cnt
-                       if int(x[1]) == int(self.defaultValue):
-                                       tcnt = cnt
-                       cnt += 1
-               if tcnt != -1:
-                       return tcnt                     
-               return 0        #prevent bigger then array
-
-       def datafromFile(self, control, data):
-               if control == ConfigSlider:
-                       return int(data)
-               elif control == configSelection:
-                       return int(data)
-               elif control == configDateTime:
-                       return int(data)
-               elif control == configText:
-                       return str(data)
-               elif control == configSequence:
-                       list = [ ]
-                       part = data.split(self.vals[0])
-                       for x in part:
-                               list.append(int(x))
-                       return list
-               elif control == configSatlist:
-                       return self.getIndexbyEntry(data)
-               else: 
-                       return ""       
-
-       def datatoFile(self, control, data):
-               if control == ConfigSlider:
-                       return str(data)
-               elif control == configSelection:
-                       return str(data)
-               elif control == configDateTime:
-                       return str(data)
-               elif control == configText:
-                       return str(data.strip())
-
-               elif control == configSequence:
-                       value = ((len(data) * ("%d" + self.vals[0]))[0:-1]) % tuple(data)
-#                      just in case you don't understand the above, here an equivalent:
-#                      value = ""
-#                      for i in data:
-#                              if value !="":
-#                                      value += self.vals[0]
-#                              value += str(i)
-                       return value
-               elif control == configSatlist:
-                       return str(self.vals[self.value][1]);
-               else: 
-                       return ""       
-
-       def loadData(self):
-               try:
-                       value = self.datafromFile(self.controlType, configfile.getKey(self.configPath))
-               except:         
-                       value = ""
+       def __getattr__(self, name):
+               return self.content.items[name]

 
 

-               if value == "":
-                       #print "value not found - using default"
+       def getSavedValue(self):
+               res = self.content.stored_values
+               for (key, val) in self.content.items.items():
+                       sv = val.saved_value
+                       if sv is not None:
+                               res[key] = sv
+                       elif key in res:
+                               del res[key]
+               return res

 
 

-                       if self.controlType == configSatlist:
-                               self.value = self.getIndexbyEntry(self.defaultValue)
-                       else:   
-                               self.value = self.defaultValue
+       def setSavedValue(self, values):
+               values = dict(values)
+               
+               self.content.stored_values = values
+
+               for (key, val) in self.content.items.items():
+                       if key in values:
+                               val.saved_value = values[key]
+
+       saved_value = property(getSavedValue, setSavedValue)

 
 

-                       self.save()             #add missing value to dict
-               else:
-                       self.value = value
-                       
-               #is this right? activate settings after load/cancel and use default     
-               self.change()
-
-       def __init__(self, configPath, control, defaultValue, vals):
-               self.configPath = configPath
-               self.defaultValue = defaultValue
-               self.controlType = control
-               self.vals = vals
-               self.notifierList = [ ]
-               self.enabled = True
-               self.loadData()         
-       def addNotifier(self, notifier):
-               self.notifierList.append(notifier);
-               notifier(self);
-       def change(self):
-               for notifier in self.notifierList:
-                       notifier(self)
-       def reload(self):
-               self.loadData()

        def save(self):
        def save(self):

-               configfile.setKey(self.configPath, self.datatoFile(self.controlType,self.value))
+               for x in self.content.items.values():
+                       x.save()
+
+       def load(self):
+               for x in self.content.items.values():
+                       x.load()
+
+       def dict(self):
+               return self.content.items
+
+# the root config object, which also can "pickle" (=serialize)
+# down the whole config tree.
+#
+# we try to keep non-existing config entries, to apply them whenever
+# a new config entry is added to a subsection
+# also, non-existing config entries will be saved, so they won't be
+# lost when a config entry disappears.
+class Config(ConfigSubsection):
+       def __init__(self):
+               ConfigSubsection.__init__(self)
+
+       def pickle_this(self, prefix, topickle, result):
+               for (key, val) in topickle.items():
+                       name = prefix + "." + key
+                       
+                       if isinstance(val, dict):
+                               self.pickle_this(name, val, result)
+                       elif isinstance(val, tuple):
+                               result.append(name + "=" + val[0]) # + " ; " + val[1])
+                       else:
+                               result.append(name + "=" + val)
+
+       def pickle(self):
+               result = [ ]
+               self.pickle_this("config", self.saved_value, result)
+               return '\n'.join(result) + "\n"
+
+       def unpickle(self, lines):
+               tree = { }
+               for l in lines:
+                       if not len(l) or l[0] == '#':
+                               continue
+                       
+                       n = l.find('=')
+                       val = l[n+1:].strip()
+
+                       names = l[:n].split('.')
+#                      if val.find(' ') != -1:
+#                              val = val[:val.find(' ')]
+
+                       base = tree
+                       
+                       for n in names[:-1]:
+                               base = base.setdefault(n, {})
+                       
+                       base[names[-1]] = val
+
+               # we inherit from ConfigSubsection, so ...
+               #object.__setattr__(self, "saved_value", tree["config"])
+               if "config" in tree:
+                       self.setSavedValue(tree["config"])
+
+       def saveToFile(self, filename):
+               f = open(filename, "w")
+               f.write(self.pickle())
+               f.close()
+
+       def loadFromFile(self, filename):
+               f = open(filename, "r")
+               self.unpickle(f.readlines())
+               f.close()
+
+config = Config()
+config.misc = ConfigSubsection()

 
 

-class configElement_nonSave(configElement):
-       def __init__(self, configPath, control, defaultValue, vals):
-               configElement.__init__(self, configPath, control, defaultValue, vals)
+class ConfigFile:
+       CONFIG_FILE = resolveFilename(SCOPE_CONFIG, "settings")

 
 

+       def load(self):
+               try:
+                       config.loadFromFile(self.CONFIG_FILE)
+               except IOError, e:
+                       print "unable to load config (%s), assuming defaults..." % str(e)
+       

        def save(self):
        def save(self):

-               pass
-               
-def getConfigListEntry(description, element):
-       b = element
-       item = b.controlType(b)
-       return ((description, item))
+#              config.save()
+               config.saveToFile(self.CONFIG_FILE)
+       
+       def __resolveValue(self, pickles, cmap):
+               if cmap.has_key(pickles[0]):
+                       if len(pickles) > 1:
+                               return self.__resolveValue(pickles[1:], cmap[pickles[0]].dict())
+                       else:
+                               return str(cmap[pickles[0]].value)
+               return None
+       
+       def getResolvedKey(self, key):
+               names = key.split('.')
+               if len(names) > 1:
+                       if names[0] == "config":
+                               ret=self.__resolveValue(names[1:], config.content.items)
+                               if ret and len(ret):
+                                       return ret
+               print "getResolvedKey", key, "failed !! (Typo??)"
+               return ""
+
+def NoSave(element):
+       element.disableSave()
+       return element
+
+configfile = ConfigFile()
+
+configfile.load()
+
+def getConfigListEntry(*args):
+       assert len(args) > 1, "getConfigListEntry needs a minimum of two arguments (descr, configElement)"
+       return args
+
+def updateConfigElement(element, newelement):
+       newelement.value = element.value
+       return newelement
+
+#def _(x):
+#      return x
+#
+#config.bla = ConfigSubsection()
+#config.bla.test = ConfigYesNo()
+#config.nim = ConfigSubList()
+#config.nim.append(ConfigSubsection())
+#config.nim[0].bla = ConfigYesNo()
+#config.nim.append(ConfigSubsection())
+#config.nim[1].bla = ConfigYesNo()
+#config.nim[1].blub = ConfigYesNo()
+#config.arg = ConfigSubDict()
+#config.arg["Hello"] = ConfigYesNo()
+#
+#config.arg["Hello"].handleKey(KEY_RIGHT)
+#config.arg["Hello"].handleKey(KEY_RIGHT)
+#
+##config.saved_value
+#
+##configfile.save()
+#config.save()
+#print config.pickle()