lib/python/Screens/RdsDisplay.py

   1 from enigma import iPlayableService, loadPNG, iRdsDecoder, ePoint, gRGB
   2 from Screens.Screen import Screen
   3 from Components.Sources.RdsDecoder import RdsDecoder
   4 from Components.ActionMap import NumberActionMap
   5 from Components.ServiceEventTracker import ServiceEventTracker
   6 from Components.Pixmap import Pixmap
   7 from Components.Label import Label
   8 from Tools.Directories import resolveFilename, SCOPE_SKIN_IMAGE
   9
  10 class RdsInfoDisplay(Screen):
  11         ALLOW_SUSPEND = True
  12
  13         def __init__(self, session):
  14                 Screen.__init__(self, session)
  15
  16                 self.__event_tracker = ServiceEventTracker(screen=self, eventmap=
  17                         {
  18                                 iPlayableService.evEnd: self.__serviceStopped,
  19                                 iPlayableService.evUpdatedRadioText: self.RadioTextChanged,
  20                                 iPlayableService.evUpdatedRtpText: self.RtpTextChanged,
  21                                 iPlayableService.evUpdatedRassInteractivePicMask: self.RassInteractivePicMaskChanged,
  22                         })
  23
  24                 self["RadioText"] = Label()
  25                 self["RtpText"] = Label()
  26                 self["RassLogo"] = Pixmap()
  27
  28                 self.onLayoutFinish.append(self.hideWidgets)
  29                 self.rassInteractivePossible=False
  30                 self.onRassInteractivePossibilityChanged = [ ]
  31
  32         def hideWidgets(self):
  33                 for x in (self["RadioText"],self["RtpText"],self["RassLogo"]):
  34                         x.hide()
  35
  36         def RadioTextChanged(self):
  37                 service = self.session.nav.getCurrentService()
  38                 decoder = service and service.rdsDecoder()
  39                 rdsText = decoder and decoder.getText(iRdsDecoder.RadioText)
  40                 if rdsText and len(rdsText):
  41                         self["RadioText"].setText(rdsText)
  42                         self["RadioText"].show()
  43                 else:
  44                         self["RadioText"].hide()
  45
  46         def RtpTextChanged(self):
  47                 service = self.session.nav.getCurrentService()
  48                 decoder = service and service.rdsDecoder()
  49                 rtpText = decoder and decoder.getText(iRdsDecoder.RtpText)
  50                 if rtpText and len(rtpText):
  51                         self["RtpText"].setText(rtpText)
  52                         self["RtpText"].show()
  53                 else:
  54                         self["RtpText"].hide()
  55
  56         def RassInteractivePicMaskChanged(self):
  57                 if not self.rassInteractivePossible:
  58                         service = self.session.nav.getCurrentService()
  59                         decoder = service and service.rdsDecoder()
  60                         mask = decoder and decoder.getRassInteractiveMask()
  61                         if mask[0] & 1: #rass interactive index page available
  62                                 self["RassLogo"].show()
  63                                 self.rassInteractivePossible = True
  64                                 for x in self.onRassInteractivePossibilityChanged:
  65                                         x(True)
  66
  67         def __serviceStopped(self):
  68                 self.hideWidgets()
  69                 if self.rassInteractivePossible:
  70                         self.rassInteractivePossible = False
  71                         for x in self.onRassInteractivePossibilityChanged:
  72                                 x(False)
  73
  74 class RassInteractive(Screen):
  75         def __init__(self, session):
  76                 Screen.__init__(self, session)
  77
  78                 self["actions"] = NumberActionMap( [ "NumberActions", "RassInteractiveActions" ],
  79                         {
  80                                 "exit": self.close,
  81                                 "0": lambda x : self.numPressed(0),
  82                                 "1": lambda x : self.numPressed(1),
  83                                 "2": lambda x : self.numPressed(2),
  84                                 "3": lambda x : self.numPressed(3),
  85                                 "4": lambda x : self.numPressed(4),
  86                                 "5": lambda x : self.numPressed(5),
  87                                 "6": lambda x : self.numPressed(6),
  88                                 "7": lambda x : self.numPressed(7),
  89                                 "8": lambda x : self.numPressed(8),
  90                                 "9": lambda x : self.numPressed(9),
  91                                 "nextPage": self.nextPage,
  92                                 "prevPage": self.prevPage,
  93                                 "nextSubPage": self.nextSubPage,
  94                                 "prevSubPage": self.prevSubPage
  95                         })
  96
  97                 self.__event_tracker = ServiceEventTracker(screen=self, eventmap=
  98                         {
  99                                 iPlayableService.evUpdatedRassInteractivePicMask: self.recvRassInteractivePicMaskChanged
 100                         })
 101
 102                 self["subpages_1"] = Pixmap()
 103                 self["subpages_2"] = Pixmap()
 104                 self["subpages_3"] = Pixmap()
 105                 self["subpages_4"] = Pixmap()
 106                 self["subpages_5"] = Pixmap()
 107                 self["subpages_6"] = Pixmap()
 108                 self["subpages_7"] = Pixmap()
 109                 self["subpages_8"] = Pixmap()
 110                 self["subpages_9"] = Pixmap()
 111                 self["Marker"] = Label(">")
 112
 113                 self.subpage = {
 114                         1 : self["subpages_1"],
 115                         2 : self["subpages_2"],
 116                         3 : self["subpages_3"],
 117                         4 : self["subpages_4"],
 118                         5 : self["subpages_5"],
 119                         6 : self["subpages_6"],
 120                         7 : self["subpages_7"],
 121                         8 : self["subpages_8"],
 122                         9 : self["subpages_9"] }
 123
 124                 self.subpage_png = {
 125                         1 : loadPNG(resolveFilename(SCOPE_SKIN_IMAGE, "rass_page1.png")),
 126                         2 : loadPNG(resolveFilename(SCOPE_SKIN_IMAGE, "rass_page2.png")),
 127                         3 : loadPNG(resolveFilename(SCOPE_SKIN_IMAGE, "rass_page3.png")),
 128                         4 : loadPNG(resolveFilename(SCOPE_SKIN_IMAGE, "rass_page4.png")) }
 129
 130                 self.current_page=0;
 131                 self.current_subpage=0;
 132                 self.showRassPage(0,0)
 133                 self.onLayoutFinish.append(self.updateSubPagePixmaps)
 134
 135         def updateSubPagePixmaps(self):
 136                 service = self.session.nav.getCurrentService()
 137                 decoder = service and service.rdsDecoder()
 138                 if not decoder: # this should never happen
 139                         print "NO RDS DECODER in showRassPage"
 140                 else:
 141                         mask = decoder.getRassInteractiveMask()
 142                         page = 1
 143                         while page < 10:
 144                                 subpage_cnt = self.countAvailSubpages(page, mask)
 145                                 subpage = self.subpage[page]
 146                                 if subpage_cnt > 0:
 147                                         if subpage.instance:
 148                                                 png = self.subpage_png[subpage_cnt]
 149                                                 if png:
 150                                                         subpage.instance.setPixmap(png)
 151                                                         subpage.show()
 152                                                 else:
 153                                                         print "rass png missing"
 154                                 else:
 155                                         subpage.hide()
 156                                 page += 1
 157
 158         def recvRassInteractivePicMaskChanged(self):
 159                 self.updateSubPagePixmaps()
 160
 161         def showRassPage(self, page, subpage):
 162                 service = self.session.nav.getCurrentService()
 163                 decoder = service and service.rdsDecoder()
 164                 if not decoder: # this should never happen
 165                         print "NO RDS DECODER in showRassPage"
 166                 else:
 167                         decoder.showRassInteractivePic(page, subpage)
 168                         page_diff = page - self.current_page
 169                         self.current_page = page
 170                         if page_diff:
 171                                 current_pos = self["Marker"].getPosition()
 172                                 y = current_pos[1]
 173                                 y += page_diff * 25
 174                                 self["Marker"].setPosition(current_pos[0],y)
 175
 176         def getMaskForPage(self, page, masks=None):
 177                 if not masks:
 178                         service = self.session.nav.getCurrentService()
 179                         decoder = service and service.rdsDecoder()
 180                         if not decoder: # this should never happen
 181                                 print "NO RDS DECODER in getMaskForPage"
 182                         masks = decoder.getRassInteractiveMask()
 183                 if masks:
 184                         mask = masks[(page*4)/8]
 185                         if page % 2:
 186                                 mask >>= 4
 187                         else:
 188                                 mask &= 0xF
 189                 return mask
 190
 191         def countAvailSubpages(self, page, masks):
 192                 mask = self.getMaskForPage(page, masks)
 193                 cnt = 0
 194                 while mask:
 195                         if mask & 1:
 196                                 cnt += 1
 197                         mask >>= 1
 198                 return cnt
 199
 200         def nextPage(self):
 201                 mask = 0
 202                 page = self.current_page
 203                 while mask == 0:
 204                         page += 1
 205                         if page > 9:
 206                                 page = 0
 207                         mask = self.getMaskForPage(page)
 208                 self.numPressed(page)
 209
 210         def prevPage(self):
 211                 mask = 0
 212                 page = self.current_page
 213                 while mask == 0:
 214                         if page > 0:
 215                                 page -= 1
 216                         else:
 217                                 page = 9
 218                         mask = self.getMaskForPage(page)
 219                 self.numPressed(page)
 220
 221         def nextSubPage(self):
 222                 self.numPressed(self.current_page)
 223
 224         def prevSubPage(self):
 225                 num = self.current_page
 226                 mask = self.getMaskForPage(num)
 227                 cur_bit = 1 << self.current_subpage
 228                 tmp = cur_bit
 229                 while True:
 230                         if tmp == 1:
 231                                 tmp = 8
 232                         else:
 233                                 tmp >>= 1
 234                         if tmp == cur_bit: # no other subpage avail
 235                                 return
 236                         if mask & tmp: # next subpage found
 237                                 subpage = 0
 238                                 while tmp > 1: # convert bit to subpage
 239                                         subpage += 1
 240                                         tmp >>= 1
 241                                 self.current_subpage = subpage
 242                                 self.showRassPage(num, subpage)
 243                                 return
 244
 245         def numPressed(self, num):
 246                 mask = self.getMaskForPage(num)
 247                 if self.current_page == num:
 248                         self.skip = 0
 249                         cur_bit = 1 << self.current_subpage
 250                         tmp = cur_bit
 251                 else:
 252                         self.skip = 1
 253                         cur_bit = 16
 254                         tmp = 1
 255                 while True:
 256                         if not self.skip:
 257                                 if tmp == 8 and cur_bit < 16:
 258                                         tmp = 1
 259                                 else:
 260                                         tmp <<= 1
 261                         else:
 262                                 self.skip = 0
 263                         if tmp == cur_bit: # no other subpage avail
 264                                 return
 265                         if mask & tmp: # next subpage found
 266                                 subpage = 0
 267                                 while tmp > 1: # convert bit to subpage
 268                                         subpage += 1
 269                                         tmp >>= 1
 270                                 self.current_subpage = subpage
 271                                 self.showRassPage(num, subpage)
 272                                 return