lib/python/Components/config.py

   1 class configFile:
   2         def __init__(self):
   3                 pass
   4
   5         def openFile(self):
   6                 try:
   7                         self.file = open("config")
   8                 except IOError:
   9                         self.file = ""
  10
  11         def getKey(self, key, dataType):
  12                 self.openFile()                 #good idea? (open every time we need it?) else we have to seek
  13                 while 1:
  14                         line = self.file.readline()
  15                         if line == "":
  16                                 break
  17                         if line.startswith(key):
  18                                 x = line.find("=")
  19                                 if x > -1:
  20                                         self.file.close()
  21                                         return dataType(line[x + 1:])
  22
  23                 self.file.close()
  24                 return ""
  25
  26 class configBoolean:
  27         def __init__(self, parent):
  28                 self.parent = parent
  29
  30         def checkValues(self):
  31                 if self.parent.value < 0:
  32                         self.parent.value = 0
  33
  34                 if(self.parent.value >= (len(self.parent.vals) - 1)):
  35                         self.parent.value = len(self.parent.vals) - 1
  36
  37         def cancel(self):
  38                 self.parent.reload()
  39
  40         def save(self):
  41                 print "save bool"
  42
  43         def handleKey(self, key):
  44                 if key == 1:
  45                         self.parent.value = self.parent.value - 1
  46                 if key == 2:
  47                         self.parent.value = self.parent.value + 1
  48
  49                 self.checkValues()
  50
  51                 self.parent.change()
  52
  53         def __call__(self):                     #needed by configlist
  54                 self.checkValues()
  55                 return ("text", self.parent.vals[self.parent.value])
  56
  57 class configValue:
  58         def __init__(self, obj):
  59                 self.obj = obj
  60
  61         def __str__(self):
  62                 return self.obj
  63
  64 class Config:
  65         def __init__(self):
  66                 pass
  67
  68         def saveLine(self, file, element):
  69                 #FIXME can handle INTs only
  70                 line = element.configPath + "=" + str(element.value) + "\n"
  71                 file.write(line)
  72
  73         def save(self):
  74                 fileHandle = open("config", "w")
  75
  76                 for groupElement in self.__dict__.items():
  77                         for element in groupElement[1].__dict__.items():
  78                                 self.saveLine(fileHandle, element[1])
  79
  80                 fileHandle.close()
  81
  82                 while 1:
  83                         pass
  84
  85 config = Config();
  86 configfile = configFile()
  87
  88 class ConfigSlider:
  89         def __init__(self, parent):
  90                 self.parent = parent
  91
  92         def cancel(self):
  93                 self.parent.reload()
  94
  95         def save(self):
  96                 print "slider - save"
  97
  98         def checkValues(self):
  99                 if self.parent.value < 0:
 100                         self.parent.value = 0
 101
 102                 if self.parent.value > 10:
 103                         self.parent.value = 10
 104
 105         def handleKey(self, key):
 106                 if key == 1:
 107                         self.parent.value = self.parent.value - 1
 108                 if key == 2:
 109                         self.parent.value = self.parent.value + 1
 110
 111                 self.checkValues()
 112                 self.parent.change()
 113
 114         def __call__(self):                     #needed by configlist
 115                 self.checkValues()
 116                 return ("slider", self.parent.value * 10)
 117
 118 class ConfigSubsection:
 119         def __init__(self):
 120                 pass
 121
 122 class configElement:
 123         def dataType(self, control):
 124                 if control == ConfigSlider:
 125                         return int;
 126                 elif control == configBoolean:
 127                         return int;
 128                 else:
 129                         return ""
 130
 131         def loadData(self):
 132                 try:
 133                         value = configfile.getKey(self.configPath, self.dataType(self.controlType))
 134                 except:
 135                         value = ""
 136
 137                 if value == "":
 138                         print "value not found - using default"
 139                         self.value = self.defaultValue
 140                 else:
 141                         self.value = value
 142                         print "value ok"
 143
 144         def __init__(self, configPath, control, defaultValue, vals):
 145                 self.configPath = configPath
 146                 self.defaultValue = defaultValue
 147                 self.controlType = control
 148                 self.vals = vals
 149                 self.notifierList = [ ]
 150                 self.loadData()
 151         def addNotifier(self, notifier):
 152                 self.notifierList.append(notifier);
 153                 notifier(self);
 154         def change(self):
 155                 for notifier in self.notifierList:
 156                         notifier(self)
 157         def reload(self):
 158                 self.loadData()