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
   6 from Tools.Directories import pathExists, fileExists, SCOPE_SKIN_IMAGE, resolveFilename
   7
   8 class Picon(Renderer):
   9         pngname = ""
  10         nameCache = { }
  11         searchPaths = ['/etc/picon/',
  12                                 '/media/cf/picon/',
  13                                 '/media/usb/picon/',
  14                                 '/media/hdd/picon/']
  15
  16         def __init__(self):
  17                 Renderer.__init__(self)
  18
  19         GUI_WIDGET = ePixmap
  20
  21         def changed(self, what):
  22                 if self.instance:
  23                         pngname = ""
  24                         if what[0] != self.CHANGED_CLEAR:
  25                                 sname = self.source.text
  26                                 pngname = self.nameCache.get(sname, "")
  27                                 if pngname == "":
  28                                         pngname = self.findPicon(self.source.text)
  29                                         if pngname == "":
  30                                                 self.nameCache[sname] = pngname
  31                                         else:
  32                                                 self.nameCache[sname] = pngname
  33                         if pngname == "": # no picon for service found
  34                                 pngname = self.nameCache.get("default", "")
  35                                 if pngname == "": # no default yet in cache..
  36                                         pngname = self.findPicon("picon_default")
  37                                         self.nameCache[sname] = pngname
  38                                         if pngname == "": # Fallback to enigma2 logo
  39                                                 pngname = resolveFilename(SCOPE_SKIN_IMAGE, "skin_default/enigma2.png")
  40                                         self.nameCache["default"] = pngname
  41                         if self.pngname != pngname:
  42                                 self.instance.setPixmapFromFile(pngname)
  43                                 self.pngname = pngname
  44
  45         def findPicon(self, serviceName):
  46                 for path in self.searchPaths:
  47                         if pathExists(path):
  48                                 png = self.findFile(path, serviceName)
  49                                 if png != "":
  50                                         return png
  51                 return ""
  52
  53         def findFile(self, path, serviceName):
  54                 pngname = path + serviceName + ".png"
  55                 if fileExists(pngname):
  56                         return pngname
  57                 else:
  58                         for i in range(len(serviceName), 1, -1):
  59                                 if fileExists(path + serviceName[0:i] + ".png"):
  60                                         return path + serviceName[0:i] + ".png"
  61                         return ""