-from enigma import *
-import time
-import sys
-
-# some helper classes first:
-class HTMLComponent:
- def produceHTML(self):
- return ""
-
-class HTMLSkin:
- order = ()
-
- def __init__(self, order):
- self.order = order
-
- def produceHTML(self):
- res = "<html>\n"
- for name in self.order:
- res += self[name].produceHTML()
- res += "</html>\n";
- return res
-
-class GUISkin:
- def __init__(self):
- pass
-
- def createGUIScreen(self, parent):
- for (name, val) in self.items():
- if isinstance(val, GUIComponent):
- val.GUIcreate(parent, None)
-
- def deleteGUIScreen(self):
- for (name, val) in self.items():
- if isinstance(val, GUIComponent):
- val.GUIdelete()
- try:
- val.fix()
- except:
- pass
-
- # note: you'll probably run into this assert. if this happens, don't panic!
- # yes, it's evil. I told you that programming in python is just fun, and
- # suddently, you have to care about things you don't even know.
- #
- # but calm down, the solution is easy, at least on paper:
- #
- # Each Component, which is a GUIComponent, owns references to each
- # instantiated eWidget (namely in screen.data[name]["instance"], in case
- # you care.)
- # on deleteGUIscreen, all eWidget *must* (!) be deleted (otherwise,
- # well, problems appear. I don't want to go into details too much,
- # but this would be a memory leak anyway.)
- # The assert beyond checks for that. It asserts that the corresponding
- # eWidget is about to be removed (i.e., that the refcount becomes 0 after
- # running deleteGUIscreen).
- # (You might wonder why the refcount is checked for 2 and not for 1 or 0 -
- # one reference is still hold by the local variable 'w', another one is
- # hold be the function argument to sys.getrefcount itself. So only if it's
- # 2 at this point, the object will be destroyed after leaving deleteGUIscreen.)
- #
- # Now, how to fix this problem? You're holding a reference somewhere. (References
- # can only be hold from Python, as eWidget itself isn't related to the c++
- # way of having refcounted objects. So it must be in python.)
- #
- # It could be possible that you're calling deleteGUIscreen trough a call of
- # a PSignal. For example, you could try to call screen.doClose() in response
- # to a Button::click. This will fail. (It wouldn't work anyway, as you would
- # remove a dialog while running it. It never worked - enigma1 just set a
- # per-mainloop variable on eWidget::close() to leave the exec()...)
- # That's why Session supports delayed closes. Just call Session.close() and
- # it will work.
- #
- # Another reason is that you just stored the data["instance"] somewhere. or
- # added it into a notifier list and didn't removed it.
- #
- # If you can't help yourself, just ask me. I'll be glad to help you out.
- # Sorry for not keeping this code foolproof. I really wanted to archive
- # that, but here I failed miserably. All I could do was to add this assert.
-# assert sys.getrefcount(w) == 2, "too many refs hold to " + str(w)
-
- def close(self):
- self.deleteGUIScreen()
-
-class GUIComponent:
- """ GUI component """
-
- def __init__(self):
- pass
-
- def execBegin(self):
- pass
-
- def execEnd(self):
- pass
-
-class VariableText:
- """VariableText can be used for components which have a variable text, based on any widget with setText call"""
-
- def __init__(self):
- self.message = ""
- self.instance = None
-
- def setText(self, text):
- self.message = text
- if self.instance:
- self.instance.setText(self.message)
-
- def getText(self):
- return self.message
-
- def GUIcreate(self, parent, skindata):
- self.instance = self.createWidget(parent, skindata)
- self.instance.setText(self.message)
-
- def GUIdelete(self):
- self.removeWidget(self.instance)
- del self.instance
-
- def removeWidget(self, instance):
- pass
-
-class VariableValue:
- """VariableValue can be used for components which have a variable value (like eSlider), based on any widget with setValue call"""
-
- def __init__(self):
- self.value = 0
- self.instance = None
-
- def setValue(self, value):
- self.value = value
- if self.instance:
- self.instance.setValue(self.value)
-
- def getValue(self):
- return self.value
-
- def GUIcreate(self, parent, skindata):
- self.instance = self.createWidget(parent, skindata)
- self.instance.setValue(self.value)
-
- def GUIdelete(self):
- self.removeWidget(self.instance)
- del self.instance
-
- def removeWidget(self, instance):
- pass
-
-# now some "real" components:
-
-class Clock(HTMLComponent, GUIComponent, VariableText):
- def __init__(self):
- VariableText.__init__(self)
- GUIComponent.__init__(self)
- self.doClock()
-
- self.clockTimer = eTimer()
- self.clockTimer.timeout.get().append(self.doClock)
- self.clockTimer.start(1000)
-
-# "funktionalitaet"
- def doClock(self):
- t = time.localtime()
- self.setText("%2d:%02d:%02d" % (t[3], t[4], t[5]))
-
-# realisierung als GUI
- def createWidget(self, parent, skindata):
- return eLabel(parent)
-
- def removeWidget(self, w):
- del self.clockTimer
-
-# ...und als HTML:
- def produceHTML(self):
- return self.getText()
-
-class Button(HTMLComponent, GUIComponent, VariableText):
- def __init__(self, text="", onClick = [ ]):
- GUIComponent.__init__(self)
- VariableText.__init__(self)
- self.setText(text)
- self.onClick = onClick
-
- def push(self):
- for x in self.onClick:
- x()
- return 0
-
- def disable(self):
-# self.instance.hide()
- pass
-
- def enable(self):
-# self.instance.show()
- pass
-
-# html:
- def produceHTML(self):
- return "<input type=\"submit\" text=\"" + self.getText() + "\">\n"
-
-# GUI:
- def createWidget(self, parent, skindata):
- g = eButton(parent)
- g.selected.get().append(self.push)
- return g
-
- def removeWidget(self, w):
- w.selected.get().remove(self.push)
-
-class Label(HTMLComponent, GUIComponent, VariableText):
- def __init__(self, text=""):
- GUIComponent.__init__(self)
- VariableText.__init__(self)
- self.setText(text)
-
-# html:
- def produceHTML(self):
- return self.getText()
-
-# GUI:
- def createWidget(self, parent, skindata):
- return eLabel(parent)
-
-class Header(HTMLComponent, GUIComponent, VariableText):
-
- def __init__(self, message):
- GUIComponent.__init__(self)
- VariableText.__init__(self)
- self.setText(message)
-
- def produceHTML(self):
- return "<h2>" + self.getText() + "</h2>\n"
-
- def createWidget(self, parent, skindata):
- g = eLabel(parent)
- return g
-
-class VolumeBar(HTMLComponent, GUIComponent, VariableValue):
-
- def __init__(self):
- GUIComponent.__init__(self)
- VariableValue.__init__(self)
-
- def createWidget(self, parent, skindata):
- g = eSlider(parent)
- g.setRange(0, 100)
- return g
-
-# a general purpose progress bar
-class ProgressBar(HTMLComponent, GUIComponent, VariableValue):
- def __init__(self):
- GUIComponent.__init__(self)
- VariableValue.__init__(self)
-
- def createWidget(self, parent, skindata):
- g = eSlider(parent)
- g.setRange(0, 100)
- return g
-
-class MenuList(HTMLComponent, GUIComponent):
- def __init__(self, list):
- GUIComponent.__init__(self)
- self.l = eListboxPythonStringContent()
- self.l.setList(list)
-
- def getCurrent(self):
- return self.l.getCurrentSelection()
-
- def GUIcreate(self, parent, skindata):
- self.instance = eListbox(parent)
- self.instance.setContent(self.l)
-
- def GUIdelete(self):
- self.instance.setContent(None)
- del self.instance
-
-class ServiceList(HTMLComponent, GUIComponent):
- def __init__(self):
- GUIComponent.__init__(self)
- self.l = eListboxServiceContent()
-
- def getCurrent(self):
- r = eServiceReference()
- self.l.getCurrent(r)
- return r
-
- def GUIcreate(self, parent, skindata):
- self.instance = eListbox(parent)
- self.instance.setContent(self.l)
-
- def GUIdelete(self):
- del self.instance
-
- def setRoot(self, root):
- self.l.setRoot(root)
-
- # mark stuff
- def clearMarked(self):
- self.l.clearMarked()
-
- def isMarked(self, ref):
- return self.l.isMarked(ref)
-
- def addMarked(self, ref):
- self.l.addMarked(ref)
-
- def removeMarked(self, ref):
- self.l.removeMarked(ref)
-
-class ServiceScan:
-
- Idle = 1
- Running = 2
- Done = 3
- Error = 4
-
- def scanStatusChanged(self):
- if self.state == self.Running:
- self.progressbar.setValue(self.scan.getProgress())
- if self.scan.isDone():
- self.state = self.Done
- else:
- self.text.setText("scan in progress - %d %% done!\n%d services found!" % (self.scan.getProgress(), self.scan.getNumServices()))
-
- if self.state == self.Done:
- self.text.setText("scan done!")
-
- if self.state == self.Error:
- self.text.setText("ERROR - failed to scan!")
-
- def __init__(self, progressbar, text):
- self.progressbar = progressbar
- self.text = text
- self.scan = eComponentScan()
- self.state = self.Idle
- self.scanStatusChanged()
-
- def execBegin(self):
- self.scan.statusChanged.get().append(self.scanStatusChanged)
- if self.scan.start():
- self.state = self.Error
- else:
- self.state = self.Running
- self.scanStatusChanged()
-
- def execEnd(self):
- self.scan.statusChanged.get().remove(self.scanStatusChanged)
- if not self.isDone():
- print "*** warning *** scan was not finished!"
-
- def isDone(self):
- return self.state == self.Done
-
-class ActionMap:
- def __init__(self, contexts = [ ], actions = { }, prio=0):
- self.actions = actions
- self.contexts = contexts
- self.prio = prio
- self.p = eActionMapPtr()
- eActionMap.getInstance(self.p)
-
- def execBegin(self):
- for ctx in self.contexts:
- self.p.bindAction(ctx, self.prio, self.action)
-
- def execEnd(self):
- for ctx in self.contexts:
- self.p.unbindAction(ctx, self.action)
-
- def action(self, context, action):
- print " ".join(("action -> ", context, action))
- try:
- self.actions[action]()
- except KeyError:
- print "unknown action %s/%s! typo in keymap?" % (context, action)
-
-class PerServiceDisplay(GUIComponent, VariableText):
- """Mixin for building components which display something which changes on navigation events, for example "service name" """
-
- def __init__(self, navcore, eventmap):
- GUIComponent.__init__(self)
- VariableText.__init__(self)
- self.eventmap = eventmap
- navcore.m_event.get().append(self.event)
- self.navcore = navcore
-
- # start with stopped state, so simulate that
- self.event(pNavigation.evStopService)
-
- def event(self, ev):
- # loop up if we need to handle this event
- if self.eventmap.has_key(ev):
- # call handler
- self.eventmap[ev]()
-
- def createWidget(self, parent, skindata):
- # by default, we use a label to display our data.
- g = eLabel(parent)
- return g
-
-class EventInfo(PerServiceDisplay):
- Now = 0
- Next = 1
- Now_Duration = 2
- Next_Duration = 3
-
- def __init__(self, navcore, now_or_next):
- # listen to evUpdatedEventInfo and evStopService
- # note that evStopService will be called once to establish a known state
- PerServiceDisplay.__init__(self, navcore,
- {
- pNavigation.evUpdatedEventInfo: self.ourEvent,
- pNavigation.evStopService: self.stopEvent
- })
- self.now_or_next = now_or_next
-
- def ourEvent(self):
- info = iServiceInformationPtr()
- service = iPlayableServicePtr()
-
- if not self.navcore.getCurrentService(service):
- if not service.info(info):
- ev = eServiceEventPtr()
- info.getEvent(ev, self.now_or_next & 1)
- if self.now_or_next & 2:
- self.setText("%d min" % (ev.m_duration / 60))
- else:
- self.setText(ev.m_event_name)
- print "new event info in EventInfo! yeah!"
-
- def stopEvent(self):
- self.setText("waiting for event data...");
-
-class ServiceName(PerServiceDisplay):
- def __init__(self, navcore):
- PerServiceDisplay.__init__(self, navcore,
- {
- pNavigation.evNewService: self.newService,
- pNavigation.evStopService: self.stopEvent
- })
-
- def newService(self):
- info = iServiceInformationPtr()
- service = iPlayableServicePtr()
-
- if not self.navcore.getCurrentService(service):
- if not service.info(info):
- self.setText("no name known, but it should be here :)")
-
- def stopEvent(self):
- self.setText("");
git.cweiske.de / enigma2.git / blobdiff