lib/python/Screens/ChoiceBox.py

   1 from Screens.Screen import Screen
   2 from Components.ActionMap import NumberActionMap
   3 from Components.Label import Label
   4 from Components.ChoiceList import ChoiceEntryComponent, ChoiceList
   5 from Components.Sources.StaticText import StaticText
   6
   7 class ChoiceBox(Screen):
   8         def __init__(self, session, title = "", list = [], keys = None, selection = 0):
   9                 Screen.__init__(self, session)
  10
  11                 self["text"] = Label(title)
  12                 self.list = []
  13                 self.summarylist = []
  14                 if keys is None:
  15                         self.__keys = [ "1", "2", "3", "4", "5", "6", "7", "8", "9", "0", "red", "green", "yellow", "blue" ] + (len(list) - 10) * [""]
  16                 else:
  17                         self.__keys = keys + (len(list) - len(keys)) * [""]
  18
  19                 self.keymap = {}
  20                 pos = 0
  21                 for x in list:
  22                         strpos = str(self.__keys[pos])
  23                         self.list.append(ChoiceEntryComponent(key = strpos, text = x))
  24                         if self.__keys[pos] != "":
  25                                 self.keymap[self.__keys[pos]] = list[pos]
  26                         self.summarylist.append((self.__keys[pos],x[0]))
  27                         pos += 1
  28                 self["list"] = ChoiceList(list = self.list, selection = selection)
  29                 self["summary_list"] = StaticText()
  30                 self.updateSummary()
  31
  32                 self["actions"] = NumberActionMap(["WizardActions", "InputActions", "ColorActions", "DirectionActions"],
  33                 {
  34                         "ok": self.go,
  35                         "back": self.cancel,
  36                         "1": self.keyNumberGlobal,
  37                         "2": self.keyNumberGlobal,
  38                         "3": self.keyNumberGlobal,
  39                         "4": self.keyNumberGlobal,
  40                         "5": self.keyNumberGlobal,
  41                         "6": self.keyNumberGlobal,
  42                         "7": self.keyNumberGlobal,
  43                         "8": self.keyNumberGlobal,
  44                         "9": self.keyNumberGlobal,
  45                         "0": self.keyNumberGlobal,
  46                         "red": self.keyRed,
  47                         "green": self.keyGreen,
  48                         "yellow": self.keyYellow,
  49                         "blue": self.keyBlue,
  50                         "up": self.up,
  51                         "down": self.down
  52                 }, -1)
  53
  54         def keyLeft(self):
  55                 pass
  56
  57         def keyRight(self):
  58                 pass
  59
  60         def up(self):
  61                 if len(self["list"].list) > 0:
  62                         while 1:
  63                                 self["list"].instance.moveSelection(self["list"].instance.moveUp)
  64                                 self.updateSummary(self["list"].l.getCurrentSelectionIndex())
  65                                 if self["list"].l.getCurrentSelection()[0][0] != "--" or self["list"].l.getCurrentSelectionIndex() == 0:
  66                                         break
  67
  68         def down(self):
  69                 if len(self["list"].list) > 0:
  70                         while 1:
  71                                 self["list"].instance.moveSelection(self["list"].instance.moveDown)
  72                                 self.updateSummary(self["list"].l.getCurrentSelectionIndex())
  73                                 if self["list"].l.getCurrentSelection()[0][0] != "--" or self["list"].l.getCurrentSelectionIndex() == len(self["list"].list) - 1:
  74                                         break
  75
  76         # runs a number shortcut
  77         def keyNumberGlobal(self, number):
  78                 self.goKey(str(number))
  79
  80         # runs the current selected entry
  81         def go(self):
  82                 cursel = self["list"].l.getCurrentSelection()
  83                 if cursel:
  84                         self.goEntry(cursel[0])
  85                 else:
  86                         self.cancel()
  87
  88         # runs a specific entry
  89         def goEntry(self, entry):
  90                 if len(entry) > 2 and isinstance(entry[1], str) and entry[1] == "CALLFUNC":
  91                         # CALLFUNC wants to have the current selection as argument
  92                         arg = self["list"].l.getCurrentSelection()[0]
  93                         entry[2](arg)
  94                 else:
  95                         self.close(entry)
  96
  97         # lookups a key in the keymap, then runs it
  98         def goKey(self, key):
  99                 if self.keymap.has_key(key):
 100                         entry = self.keymap[key]
 101                         self.goEntry(entry)
 102
 103         # runs a color shortcut
 104         def keyRed(self):
 105                 self.goKey("red")
 106
 107         def keyGreen(self):
 108                 self.goKey("green")
 109
 110         def keyYellow(self):
 111                 self.goKey("yellow")
 112
 113         def keyBlue(self):
 114                 self.goKey("blue")
 115
 116         def updateSummary(self, curpos=0):
 117                 pos = 0
 118                 summarytext = ""
 119                 for entry in self.summarylist:
 120                         if pos > curpos-2 and pos < curpos+5:
 121                                 if pos == curpos:
 122                                         summarytext += ">"
 123                                 else:
 124                                         summarytext += entry[0]
 125                                 summarytext += ' ' + entry[1] + '\n'
 126                         pos += 1
 127                 self["summary_list"].setText(summarytext)
 128
 129         def cancel(self):
 130                 self.close(None)