code.vuplus.com Git - vuplus_dvbapp/blob - lib/python/Plugins/Extensions/DVDBurn/DVDToolbox.py

   1 from Screens.Screen import Screen
   2 from Screens.MessageBox import MessageBox
   3 from Screens.HelpMenu import HelpableScreen
   4 from Components.ActionMap import HelpableActionMap, ActionMap
   5 from Components.Sources.List import List
   6 from Components.Sources.StaticText import StaticText
   7 from Components.Sources.Progress import Progress
   8 from Components.Task import Task, Job, job_manager, Condition
   9 from Components.ScrollLabel import ScrollLabel
  10 from Components.Harddisk import harddiskmanager
  11
  12 class DVDToolbox(Screen):
  13         skin = """
  14                 <screen position="90,83" size="560,445" title="DVD media toolbox" >
  15                     <ePixmap pixmap="skin_default/buttons/red.png" position="0,0" size="140,40" alphatest="on" />
  16                     <ePixmap pixmap="skin_default/buttons/green.png" position="140,0" size="140,40" alphatest="on" />
  17                     <ePixmap pixmap="skin_default/buttons/yellow.png" position="280,0" size="140,40" alphatest="on" />
  18                     <ePixmap pixmap="skin_default/buttons/blue.png" position="420,0" size="140,40" alphatest="on" />
  19                     <widget source="key_red" render="Label" position="0,0" zPosition="1" size="140,40" font="Regular;20" halign="center" valign="center" backgroundColor="#9f1313" transparent="1" />
  20                     <widget source="key_green" render="Label" position="140,0" zPosition="1" size="140,40" font="Regular;20" halign="center" valign="center" backgroundColor="#1f771f" transparent="1" />
  21                     <widget source="key_yellow" render="Label" position="280,0" zPosition="1" size="140,40" font="Regular;20" halign="center" valign="center" backgroundColor="#a08500" transparent="1" />
  22                     <widget source="key_blue" render="Label" position="420,0" zPosition="1" size="140,40" font="Regular;20" halign="center" valign="center" backgroundColor="#18188b" transparent="1" />
  23                     <widget source="info" render="Label" position="20,60" size="520,100" font="Regular;20" />
  24                     <widget name="details" position="20,200" size="520,200" font="Regular;16" />
  25                     <widget source="space_bar" render="Progress" position="10,410" size="540,26" borderWidth="1" backgroundColor="#254f7497" />
  26                     <widget source="space_label" render="Label" position="20,414" size="520,22" zPosition="2" font="Regular;18" halign="center" transparent="1" foregroundColor="#000000" />
  27                 </screen>"""
  28
  29         def __init__(self, session):
  30                 Screen.__init__(self, session)
  31
  32                 self["key_red"] = StaticText(_("Exit"))
  33                 self["key_green"] = StaticText(_("Update"))
  34                 self["key_yellow"] = StaticText()
  35                 self["key_blue"] = StaticText()
  36
  37                 self["space_label"] = StaticText()
  38                 self["space_bar"] = Progress()
  39
  40                 self.mediuminfo = [ ]
  41                 self.formattable = False
  42                 self["details"] = ScrollLabel()
  43                 self["info"] = StaticText()
  44
  45                 self["toolboxactions"] = ActionMap(["ColorActions", "DVDToolbox"],
  46                 {
  47                     "red": self.close,
  48                     "green": self.update,
  49                     "yellow": self.format,
  50                     #"blue": self.eject,
  51                     "cancel": self.close,
  52                     "pageUp": self.pageUp,
  53                     "pageDown": self.pageDown
  54                 })
  55                 self.update()
  56
  57         def pageUp(self):
  58                 self["details"].pageUp()
  59
  60         def pageDown(self):
  61                 self["details"].pageDown()
  62
  63         def update(self):
  64                 self["space_label"].text = _("Please wait... Loading list...")
  65                 self["info"].text = ""
  66                 self["details"].setText("")
  67                 self.mediuminfo = [ ]
  68                 job = DVDinfoJob(self)
  69                 job_manager.AddJob(job)
  70
  71         def infoJobCB(self, in_background=False):
  72                 capacity = 1
  73                 used = 0
  74                 infotext = ""
  75                 mediatype = ""
  76                 for line in self.mediuminfo:
  77                         if line.find("Mounted Media:") > -1:
  78                                 mediatype = line.rsplit(',',1)[1][1:-1]
  79                                 if mediatype.find("RW") > 0:
  80                                         self.formattable = True
  81                                 else:
  82                                         self.formattable = False
  83                         if line.find("Legacy lead-out at:") > -1:
  84                                 used = int(line.rsplit('=',1)[1]) / 1048576.0
  85                                 print "[lead out] used =", used
  86                         elif line.find("formatted:") > -1:
  87                                 capacity = int(line.rsplit('=',1)[1]) / 1048576.0
  88                                 print "[formatted] capacity =", capacity
  89                         elif capacity == 1 and line.find("READ CAPACITY:") > -1:
  90                                 capacity = int(line.rsplit('=',1)[1]) / 1048576.0
  91                                 print "[READ CAP] capacity =", capacity
  92                         elif line.find("Disc status:") > -1:
  93                                 if line.find("blank") > -1:
  94                                         print "[Disc status] capacity=%d, used=0" % (capacity)
  95                                         capacity = used
  96                                         used = 0
  97                         elif line.find("Free Blocks:") > -1:
  98                                 try:
  99                                         size = eval(line[14:].replace("KB","*1024"))
 100                                 except:
 101                                         size = 0
 102                                 if size > 0:
 103                                         capacity = size
 104                                         used = capacity-used
 105                                         print "[free blocks] capacity=%d, used=%d" % (capacity, used)
 106                         infotext += line
 107                 self["details"].setText(infotext)
 108                 if self.formattable:
 109                         self["key_yellow"].text = _("Format")
 110                 else:
 111                         self["key_yellow"].text = ""
 112                 percent = 100 * used / (capacity or 1)
 113                 if capacity > 4600:
 114                         self["space_label"].text = "%d / %d MB" % (used, capacity) + " (%.2f%% " % percent + _("of a DUAL layer medium used.") + ")"
 115                         self["space_bar"].value = int(percent)
 116                 elif capacity > 1:
 117                         self["space_label"].text = "%d / %d MB" % (used, capacity) + " (%.2f%% " % percent + _("of a SINGLE layer medium used.") + ")"
 118                         self["space_bar"].value = int(percent)
 119                 elif capacity == 1 and used > 0:
 120                         self["space_label"].text = "%d MB " % (used) + _("on READ ONLY medium.")
 121                         self["space_bar"].value = int(percent)
 122                 else:
 123                         self["space_label"].text = _("Medium is not a writeable DVD!")
 124                         self["space_bar"].value = 0
 125                 free = capacity-used
 126                 if free < 2:
 127                         free = 0
 128                 self["info"].text = "Media-Type:\t\t%s\nFree capacity:\t\t%d MB" % (mediatype or "NO DVD", free)
 129
 130         def format(self):
 131                 if self.formattable:
 132                         job = DVDformatJob(self)
 133                         job_manager.AddJob(job)
 134                         from Screens.TaskView import JobView
 135                         self.session.openWithCallback(self.infoJobCB, JobView, job)
 136
 137 class DVDformatJob(Job):
 138         def __init__(self, toolbox):
 139                 Job.__init__(self, _("DVD media toolbox"))
 140                 self.toolbox = toolbox
 141                 DVDformatTask(self)
 142
 143         def retry(self):
 144                 self.tasks[0].args += [ "-force" ]
 145                 Job.retry(self)
 146
 147 class DVDformatTaskPostcondition(Condition):
 148         RECOVERABLE = True
 149         def check(self, task):
 150                 return task.error is None
 151
 152         def getErrorMessage(self, task):
 153                 return {
 154                         task.ERROR_ALREADYFORMATTED: _("This DVD RW medium is already formatted - reformatting will erase all content on the disc."),
 155                         task.ERROR_NOTWRITEABLE: _("Medium is not a writeable DVD!"),
 156                         task.ERROR_UNKNOWN: _("An unknown error occured!")
 157                 }[task.error]
 158
 159 class DVDformatTask(Task):
 160         ERROR_ALREADYFORMATTED, ERROR_NOTWRITEABLE, ERROR_UNKNOWN = range(3)
 161         def __init__(self, job, extra_args=[]):
 162                 Task.__init__(self, job, ("RW medium format"))
 163                 self.toolbox = job.toolbox
 164                 self.postconditions.append(DVDformatTaskPostcondition())
 165                 self.setTool("/bin/dvd+rw-format")
 166                 self.args += [ "/dev/" + harddiskmanager.getCD() ]
 167                 self.end = 1100
 168
 169         def prepare(self):
 170                 self.error = None
 171
 172         def processOutputLine(self, line):
 173                 if line.startswith("- media is already formatted"):
 174                         self.error = self.ERROR_ALREADYFORMATTED
 175                         self.force = True
 176                 if line.startswith(":-( mounted media doesn't appear to be"):
 177                         self.error = self.ERROR_NOTWRITEABLE
 178
 179         def processOutput(self, data):
 180                 print "[DVDformatTask processOutput]  ", data
 181                 if data.endswith('%'):
 182                         data= data.replace('\x08','')
 183                         self.progress = int(float(data[:-1])*10)
 184                 else:
 185                         Task.processOutput(self, data)
 186
 187 class DVDinfoJob(Job):
 188         def __init__(self, toolbox):
 189                 Job.__init__(self, "DVD media toolbox")
 190                 self.toolbox = toolbox
 191                 DVDinfoTask(self)
 192
 193 class DVDinfoTaskPostcondition(Condition):
 194         RECOVERABLE = True
 195         def check(self, task):
 196                 return task.error is None
 197
 198         def getErrorMessage(self, task):
 199                 return {
 200                         task.ERROR_UNKNOWN: _("An unknown error occured!")
 201                 }[task.error]
 202
 203 class DVDinfoTask(Task):
 204         ERROR_UNKNOWN = range(1)
 205         def __init__(self, job, extra_args=[]):
 206                 Task.__init__(self, job, ("mediainfo"))
 207                 self.toolbox = job.toolbox
 208                 self.postconditions.append(DVDinfoTaskPostcondition())
 209                 self.setTool("/bin/dvd+rw-mediainfo")
 210                 self.args += [ "/dev/" + harddiskmanager.getCD() ]
 211
 212         def prepare(self):
 213                 self.error = None
 214
 215         def processOutputLine(self, line):
 216                 print "[DVDinfoTask]", line[:-1]
 217                 self.toolbox.mediuminfo.append(line)
 218
 219         def processFinished(self, returncode):
 220                 Task.processFinished(self, returncode)
 221                 self.toolbox.infoJobCB()