code.vuplus.com Git - vuplus_dvbapp/blob - lib/python/Components/HelpMenuList.py

   1 from GUIComponent import GUIComponent
   2
   3 from enigma import eListboxPythonMultiContent, eListbox, gFont
   4 from Tools.KeyBindings import queryKeyBinding, getKeyDescription
   5 import skin
   6 #getKeyPositions
   7
   8 # [ ( actionmap, context, [(action, help), (action, help), ...] ), (actionmap, ... ), ... ]
   9
  10 class HelpMenuList(GUIComponent):
  11         def __init__(self, helplist, callback):
  12                 GUIComponent.__init__(self)
  13                 self.onSelChanged = [ ]
  14                 self.l = eListboxPythonMultiContent()
  15                 self.callback = callback
  16                 self.extendedHelp = False
  17
  18                 l = [ ]
  19                 for (actionmap, context, actions) in helplist:
  20                         for (action, help) in actions:
  21                                 buttons = queryKeyBinding(context, action)
  22
  23                                 # do not display entries which are not accessible from keys
  24                                 if not len(buttons):
  25                                         continue
  26
  27                                 name = None
  28                                 flags = 0
  29
  30                                 for n in buttons:
  31                                         (name, flags) = (getKeyDescription(n[0]), n[1])
  32                                         if name is not None:
  33                                                 break
  34
  35                                 if flags & 8: # for long keypresses, prepend l_ into the key name.
  36                                         name = (name[0], "long")
  37
  38                                 entry = [ (actionmap, context, action, name ) ]
  39
  40                                 if isinstance(help, list):
  41                                         self.extendedHelp = True
  42                                         print "extendedHelpEntry found"
  43                                         x, y, w, h = skin.parameters.get("HelpMenuListExtHlp0",(0, 0, 400, 26))
  44                                         x1, y1, w1, h1 = skin.parameters.get("HelpMenuListExtHlp1",(0, 28, 400, 20))
  45                                         entry.extend((
  46                                                 (eListboxPythonMultiContent.TYPE_TEXT, x, y, w, h, 0, 0, help[0]),
  47                                                 (eListboxPythonMultiContent.TYPE_TEXT, x1, y1, w1, h1, 1, 0, help[1])
  48                                         ))
  49                                 else:
  50                                         x, y, w, h = skin.parameters.get("HelpMenuListHlp",(0, 0, 400, 28))
  51                                         entry.append( (eListboxPythonMultiContent.TYPE_TEXT, x, y, w, h, 0, 0, help) )
  52
  53                                 l.append(entry)
  54
  55                 self.l.setList(l)
  56                 if self.extendedHelp is True:
  57
  58                         font = skin.fonts.get("HelpMenuListExt0", ("Regular", 24, 50))
  59                         self.l.setFont(0, gFont(font[0], font[1]))
  60                         self.l.setItemHeight(font[2])
  61                         font = skin.fonts.get("HelpMenuListExt1", ("Regular", 18))
  62                         self.l.setFont(1, gFont(font[0], font[1]))
  63                 else:
  64                         font = skin.fonts.get("HelpMenuList", ("Regular", 24, 38))
  65                         self.l.setFont(0, gFont(font[0], font[1]))
  66                         self.l.setItemHeight(font[2])
  67
  68         def ok(self):
  69                 # a list entry has a "private" tuple as first entry...
  70                 l = self.getCurrent()
  71                 if l is None:
  72                         return
  73                 # ...containing (Actionmap, Context, Action, keydata).
  74                 # we returns this tuple to the callback.
  75                 self.callback(l[0], l[1], l[2])
  76
  77         def getCurrent(self):
  78                 sel = self.l.getCurrentSelection()
  79                 return sel and sel[0]
  80
  81         GUI_WIDGET = eListbox
  82
  83         def postWidgetCreate(self, instance):
  84                 instance.setContent(self.l)
  85                 instance.selectionChanged.get().append(self.selectionChanged)
  86
  87         def preWidgetRemove(self, instance):
  88                 instance.setContent(None)
  89                 instance.selectionChanged.get().remove(self.selectionChanged)
  90
  91         def selectionChanged(self):
  92                 for x in self.onSelChanged:
  93                         x()