lib/python/Components/Renderer/Picon.py

   1 ##
   2 ## Picon renderer by Gruffy .. some speedups by Ghost
   3 ##
   4 from Renderer import Renderer
   5 from enigma import ePixmap, eEnv
   6 from Tools.Directories import fileExists, SCOPE_SKIN_IMAGE, SCOPE_CURRENT_SKIN, resolveFilename
   7
   8 class Picon(Renderer):
   9         searchPaths = (eEnv.resolve('${datadir}/enigma2/%s/'),
  10                                 '/media/cf/%s/',
  11                                 '/media/usb/%s/')
  12
  13         def __init__(self):
  14                 Renderer.__init__(self)
  15                 self.path = "picon"
  16                 self.nameCache = { }
  17                 self.pngname = ""
  18
  19         def applySkin(self, desktop, parent):
  20                 attribs = [ ]
  21                 for (attrib, value) in self.skinAttributes:
  22                         if attrib == "path":
  23                                 self.path = value
  24                         else:
  25                                 attribs.append((attrib,value))
  26                 self.skinAttributes = attribs
  27                 return Renderer.applySkin(self, desktop, parent)
  28
  29         GUI_WIDGET = ePixmap
  30
  31         def changed(self, what):
  32                 if self.instance:
  33                         pngname = ""
  34                         if what[0] != self.CHANGED_CLEAR:
  35                                 sname = self.source.text
  36                                 # strip all after last :
  37                                 pos = sname.rfind(':')
  38                                 if pos != -1:
  39                                         sname = sname[:pos].rstrip(':').replace(':','_')
  40                                 pngname = self.nameCache.get(sname, "")
  41                                 if pngname == "":
  42                                         pngname = self.findPicon(sname)
  43                                         if pngname != "":
  44                                                 self.nameCache[sname] = pngname
  45                         if pngname == "": # no picon for service found
  46                                 pngname = self.nameCache.get("default", "")
  47                                 if pngname == "": # no default yet in cache..
  48                                         pngname = self.findPicon("picon_default")
  49                                         if pngname == "":
  50                                                 tmp = resolveFilename(SCOPE_CURRENT_SKIN, "picon_default.png")
  51                                                 if fileExists(tmp):
  52                                                         pngname = tmp
  53                                                 else:
  54                                                         pngname = resolveFilename(SCOPE_SKIN_IMAGE, "skin_default/picon_default.png")
  55                                         self.nameCache["default"] = pngname
  56                         if self.pngname != pngname:
  57                                 self.instance.setPixmapFromFile(pngname)
  58                                 self.pngname = pngname
  59
  60         def findPicon(self, serviceName):
  61                 for path in self.searchPaths:
  62                         pngname = (path % self.path) + serviceName + ".png"
  63                         if fileExists(pngname):
  64                                 return pngname
  65                 return ""