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