jfrey
47 linhas
1.5 KiB
Python
47 linhas
1.5 KiB
Python
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"""
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Extends Yapsy IPlugin interface to pass information about the board to plugins.
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Fields of interest for plugins:
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args: list of arguments passed to the plugins
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sample_rate: actual sample rate of the board
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eeg_channels: number of EEG
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aux_channels: number of AUX channels
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If needed, plugins that need to report an error can set self.is_activated to False during activate() call.
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NB: because of how yapsy discovery system works, plugins must use the following syntax to inherit to use polymorphism (see http://yapsy.sourceforge.net/Advices.html):
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import plugin_interface as plugintypes
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class PluginExample(plugintypes.IPluginExtended):
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...
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"""
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from yapsy.IPlugin import IPlugin
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class IPluginExtended(IPlugin):
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# args: passed by command line
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def pre_activate(self, args, sample_rate=250, eeg_channels=8, aux_channels=3):
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self.args = args
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self.sample_rate = sample_rate
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self.eeg_channels = eeg_channels
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self.aux_channels = aux_channels
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# by default we say that activation was okay -- inherited from IPlugin
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self.is_activated = True
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self.activate()
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# tell outside world if init went good or bad
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return self.is_activated
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# inherited from IPlugin
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def activate(self):
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print "Plugin %s activated." % (self.__class__.__name__)
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# inherited from IPlugin
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def deactivate(self):
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print "Plugin %s deactivated." % (self.__class__.__name__)
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# plugins that require arguments should implement this method
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def show_help(self):
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print "I, %s, do not need any parameter." % (self.__class__.__name__)
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