X-Git-Url: https://git.cweiske.de/enigma2.git/blobdiff_plain/4953676fb9df2347981b4f3ddb17a4d725197b31..d7d291938c45893e28715fb12ae5b83d334084e9:/components.py diff --git a/components.py b/components.py index ac4262ea..63e5669e 100644 --- a/components.py +++ b/components.py @@ -22,24 +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] = { } if isinstance(val, GUIComponent): - val.GUIcreate(self.data[name], parent, None) + val.GUIcreate(parent, None) def deleteGUIScreen(self): for (name, val) in self.items(): if isinstance(val, GUIComponent): - w = self.data[name]["instance"] - val.GUIdelete(self.data[name]) + val.GUIdelete() try: val.fix() except: pass - del self.data[name] # 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 @@ -79,80 +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: @@ -171,14 +156,16 @@ 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="", onClick = [ ]): GUIComponent.__init__(self) @@ -192,9 +179,11 @@ class Button(HTMLComponent, GUIComponent, VariableText): return 0 def disable(self): +# self.instance.hide() pass def enable(self): +# self.instance.show() pass # html: @@ -202,13 +191,13 @@ class Button(HTMLComponent, GUIComponent, VariableText): 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 GUIdeleteInstance(self, g): - g.selected.get().remove(self.push) + + def removeWidget(self, w): + w.selected.get().remove(self.push) class Label(HTMLComponent, GUIComponent, VariableText): def __init__(self, text=""): @@ -221,10 +210,9 @@ class Label(HTMLComponent, GUIComponent, VariableText): return self.getText() # GUI: - def GUIcreateInstance(self, priv, parent, skindata): - g = eLabel(parent) - return g - + def createWidget(self, parent, skindata): + return eLabel(parent) + class Header(HTMLComponent, GUIComponent, VariableText): def __init__(self, message): @@ -235,9 +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): @@ -246,18 +233,18 @@ 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 GUIcreateInstance(self, priv, parent, skindata): + def createWidget(self, parent, skindata): g = eSlider(parent) g.setRange(0, 100) return g @@ -271,26 +258,29 @@ class MenuList(HTMLComponent, GUIComponent): def getCurrent(self): return self.l.getCurrentSelection() - def GUIcreateInstance(self, priv, parent, skindata): - g = eListbox(parent) - g.setContent(self.l) - return g + def GUIcreate(self, parent, skindata): + self.instance = eListbox(parent) + self.instance.setContent(self.l) - def GUIdeleteInstance(self, g): - g.setContent(None) + def GUIdelete(self): + self.instance.setContent(None) 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 GUIcreateInstance(self, priv, parent, skindata): - g = eListbox(parent) - g.setContent(self.l) - return g + def GUIcreate(self, parent, skindata): + self.instance = eListbox(parent) + self.instance.setContent(self.l) - def GUIdeleteInstance(self, g): - g.setContent(None) + def GUIdelete(self): + del self.instance def setRoot(self, root): self.l.setRoot(root)