code.vuplus.com Git - vuplus_dvbapp/blob - components.py

   1 from enigma import *
   2 import time
   3
   4 # some helper classes first:
   5 class HTMLComponent:
   6         def produceHTML(self):
   7                 return ""
   8
   9 class HTMLSkin:
  10         order = ()
  11
  12         def __init__(self, order):
  13                 self.order = order
  14
  15         def produceHTML(self):
  16                 res = "<html>\n"
  17                 for name in self.order:
  18                         res += self[name].produceHTML()
  19                 res += "</html>\n";
  20                 return res
  21
  22 class GUISkin:
  23         data = { }
  24         def createGUIScreen(self, parent):
  25                 for (name, val) in self.items():
  26                         self.data[name] = { }
  27                         val.GUIcreate(self.data[name], parent, None)
  28
  29 class GUIComponent:
  30         """ GUI component """
  31
  32         def __init__(self):
  33                 self.notifier = [ ]
  34
  35         def GUIcreate(self, priv, parent, skindata):
  36                 i = self.GUIcreateInstance(self, parent, skindata)
  37                 priv["instance"] = i
  38                 self.notifier.append(i)
  39                 if self.notifierAdded:
  40                         self.notifierAdded(i)
  41
  42 class VariableText:
  43         """VariableText can be used for components which have a variable text, based on any widget with setText call"""
  44
  45         def __init__(self):
  46                 self.message = ""
  47
  48         def notifierAdded(self, notifier):
  49                 notifier.setText(self.message)
  50
  51         def setText(self, text):
  52                 if self.message != text:
  53                         self.message = text
  54                         for x in self.notifier:
  55                                 x.setText(self.message)
  56
  57         def getText(self):
  58                 return self.message
  59
  60 class VariableValue:
  61         """VariableValue can be used for components which have a variable value (like eSlider), based on any widget with setValue call"""
  62
  63         def __init__(self):
  64                 self.value = 0
  65
  66         def notifierAdded(self, notifier):
  67                 notifier.setValue(self.value)
  68
  69         def setValue(self, value):
  70                 if self.value != value:
  71                         self.value = value
  72                         for x in self.notifier:
  73                                 x.setValue(self.value)
  74
  75         def getValue(self):
  76                 return self.value
  77
  78 # now some "real" components:
  79
  80 class Clock(HTMLComponent, GUIComponent, VariableText):
  81         def __init__(self):
  82                 VariableText.__init__(self)
  83                 GUIComponent.__init__(self)
  84                 self.doClock()
  85
  86                 self.clockTimer = eTimer()
  87                 self.clockTimer.timeout.get().append(self.doClock)
  88                 self.clockTimer.start(1000)
  89
  90 # "funktionalitaet"
  91         def doClock(self):
  92                 self.setText("clock: " + time.asctime())
  93
  94 # realisierung als GUI
  95         def GUIcreateInstance(self, priv, parent, skindata):
  96                 g = eLabel(parent)
  97                 return g
  98
  99 # ...und als HTML:
 100         def produceHTML(self):
 101                 return self.getText()
 102
 103 class Button(HTMLComponent, GUIComponent, VariableText):
 104         def __init__(self, text=""):
 105                 GUIComponent.__init__(self)
 106                 VariableText.__init__(self)
 107                 self.setText(text)
 108                 self.onClick = [ ]
 109
 110         def clicked(self):
 111                 for x in self.onClick:
 112                         x()
 113                 return 0
 114
 115         def GUIcreate(self, priv, parent, skindata):
 116                 GUIComponent.GUIcreate(self, priv,parent, skindata)
 117                 priv["instance"].selected.get().append(self.clicked)
 118
 119         def click(self):
 120                 for x in self.onClick:
 121                         x()
 122
 123 # html:
 124         def produceHTML(self):
 125                 return "<input type=\"submit\" text=\"" + self.getText() + "\">\n"
 126
 127 # GUI:
 128         def GUIcreateInstance(self, priv, parent, skindata):
 129                 g = eButton(parent)
 130 #               g.clicked = [ self.click ]
 131                 return g
 132
 133 class Header(HTMLComponent, GUIComponent, VariableText):
 134
 135         def __init__(self, message):
 136                 GUIComponent.__init__(self)
 137                 VariableText.__init__(self)
 138                 self.setText(message)
 139
 140         def produceHTML(self):
 141                 return "<h2>" + self.getText() + "</h2>\n"
 142
 143         def GUIcreateInstance(self, priv, parent, skindata):
 144                 g = eLabel(parent)
 145                 g.setText(self.message)
 146                 return g
 147
 148 class VolumeBar(HTMLComponent, GUIComponent, VariableValue):
 149
 150         def __init__(self):
 151                 GUIComponent.__init__(self)
 152                 VariableValue.__init__(self)
 153
 154         def GUIcreateInstance(self, priv, parent, skindata):
 155                 g = eSlider(parent)
 156                 g.setRange(0, 100)
 157                 return g
 158