X-Git-Url: http://code.vuplus.com/gitweb/?a=blobdiff_plain;f=components.py;h=63e5669e9e0e59af5ade944c976ecfe1b7c996a8;hb=d7d291938c45893e28715fb12ae5b83d334084e9;hp=8115ecf420bd7b9e3bea285bfa705487483585a8;hpb=8ade23537a682d4b0c9709d533b25702bde2ee23;p=vuplus_dvbapp diff --git a/components.py b/components.py index 8115ecf..63e5669 100644 --- a/components.py +++ b/components.py @@ -22,18 +22,21 @@ class HTMLSkin: class GUISkin: def __init__(self): - self.data = { } + pass def createGUIScreen(self, parent): for (name, val) in self.items(): - self.data[name] = { } - val.GUIcreate(self.data[name], parent, None) + if isinstance(val, GUIComponent): + val.GUIcreate(parent, None) def deleteGUIScreen(self): for (name, val) in self.items(): - w = self.data[name]["instance"] - val.GUIdelete(self.data[name]) - del self.data[name] + 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 @@ -60,7 +63,7 @@ class GUISkin: # 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 session.close() in response + # 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()...) @@ -73,80 +76,68 @@ class GUISkin: # 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) +# assert sys.getrefcount(w) == 2, "too many refs hold to " + str(w) def close(self): self.deleteGUIScreen() - del self.data - -# note: components can be used in multiple screens, so we have kind of -# two contexts: first the per-component one (self), then the per-screen (i.e.: -# per eWidget one), called "priv". In "priv", for example, the instance -# of the eWidget is stored. - -# GUI components have a "notifier list" of associated eWidgets to one component -# (as said - one component instance can be used at multiple screens) class GUIComponent: """ GUI component """ def __init__(self): - self.notifier = [ ] - - def GUIcreate(self, priv, parent, skindata): - i = self.GUIcreateInstance(self, parent, skindata) - priv["instance"] = i - self.notifier.append(i) - try: - self.notifierAdded(i) - except: - pass - - # GUIdelete must delete *all* references to the current component! - def GUIdelete(self, priv): - g = priv["instance"] - self.notifier.remove(g) - self.GUIdeleteInstance(g) - del priv["instance"] - - def GUIdeleteInstance(self, priv): 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 notifierAdded(self, notifier): - notifier.setText(self.message) - def setText(self, text): - if self.message != text: - self.message = text - for x in self.notifier: - x.setText(self.message) + 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 notifierAdded(self, notifier): - notifier.setValue(self.value) - def setValue(self, value): - if self.value != value: - self.value = value - for x in self.notifier: - x.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: @@ -165,39 +156,63 @@ class Clock(HTMLComponent, GUIComponent, VariableText): self.setText("clock: " + time.asctime()) # realisierung als GUI - def GUIcreateInstance(self, priv, parent, skindata): - g = eLabel(parent) - return g + 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=""): + def __init__(self, text="", onClick = [ ]): GUIComponent.__init__(self) VariableText.__init__(self) self.setText(text) - self.onClick = [ ] + self.onClick = onClick def push(self): for x in self.onClick: x() return 0 -# html: + def disable(self): +# self.instance.hide() + pass + + def enable(self): +# self.instance.show() + pass + +# html: def produceHTML(self): return "\n" # GUI: - def GUIcreateInstance(self, priv, parent, skindata): + 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) - def GUIdeleteInstance(self, g): - g.selected.get().remove(self.push) +# 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): @@ -208,9 +223,8 @@ class Header(HTMLComponent, GUIComponent, VariableText): def produceHTML(self): return "

" + self.getText() + "

\n" - def GUIcreateInstance(self, priv, parent, skindata): + def createWidget(self, parent, skindata): g = eLabel(parent) - g.setText(self.message) return g class VolumeBar(HTMLComponent, GUIComponent, VariableValue): @@ -219,15 +233,93 @@ class VolumeBar(HTMLComponent, GUIComponent, VariableValue): GUIComponent.__init__(self) VariableValue.__init__(self) - def GUIcreateInstance(self, priv, parent, skindata): + 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) + +class ServiceList(HTMLComponent, GUIComponent): def __init__(self): GUIComponent.__init__(self) + self.l = eListboxServiceContent() - def GUIcreateInstance(self, priv, parent, skindata): - g = eListbox(parent) - return g + 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) + +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() + if self.scan.start(): + self.state = self.Error + else: + self.state = self.Running + self.scan.statusChanged.get().append(self.scanStatusChanged) + self.scanStatusChanged() + + def isDone(self): + return self.state == self.Done + + def fix(self): + self.scan.statusChanged.get().remove(self.scanStatusChanged) + \ No newline at end of file