Retornos de chamada do aplicativo
É possível registrar retornos de chamada Python com o objeto de aplicativo que o Designer chamará quando ocorrerem eventos específicos.
Objetos da interface do usuário, como menus e botões, podem acionar retornos de chamada usando a biblioteca Qt para Python. Para obter mais informações, consulte Criando elementos de interface do usuário.
import sd
## Our callbacks.
def onBeforeFileLoadedCallback(filePath):
print("Before file loaded, file: %s" % filePath)
def onAfterFileLoadedCallback(filePath, succeed, updated):
print("After file loaded, file: %s, succeed: %s, updated: %s" % (filePath, succeed, updated))
def onBeforeFileSavedCallback(filePath, parentPackagePath):
print("Before file saved, file: %s, parentPackage: %s" % (filePath, parentPackagePath))
def onAfterFileSavedCallback(filePath, succeed):
print("After file saved, file: %s, succeed: %s" % (filePath, succeed))
## Get the application.
app = sd.getContext().getSDApplication()
## Register our callbacks.
beforeFileLoadedCallbackID = app.registerBeforeFileLoadedCallback(onBeforeFileLoadedCallback)
afterFileLoadedCallbackID = app.registerAfterFileLoadedCallback(onAfterFileLoadedCallback)
beforeFileSavedCallbackID = app.registerBeforeFileSavedCallback(onBeforeFileSavedCallback)
afterFileSavedCallbackID = app.registerAfterFileSavedCallback(onAfterFileSavedCallback)
## Unregister callbacks when no longer needed.
app.unregisterCallback(beforeFileLoadedCallbackID)
app.unregisterCallback(afterFileLoadedCallbackID)
app.unregisterCallback(beforeFileSavedCallbackID)
app.unregisterCallback(afterFileSavedCallbackID)
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