def _translate_stroke(self, s):
stroke = steno.Stroke(s)
self.translator.translate(stroke)
for listener in self.stroke_listeners:
listener(stroke)
def __init__(self, engine_command_callback):
"""Creates and configures a single steno pipeline."""
self.subscribers = []
self.is_running = False
self.machine = None
self.machine_init = {}
self.translator = None
self.formatter = None
self.output = None
# Check and use configuration
self.config = conf.get_config()
config_errors, config_values = check_steno_config(self.config)
for error in config_errors:
# This will raise one of the configuration errors.
raise error
machine_type, user_dictionary = config_values
# Set the machine module and any initialization variables.
self.machine_module = conf.import_named_module(
machine_type, SUPPORTED_MACHINES_DICT)
if self.machine_module is None:
raise InvalidConfigurationError(
'Invalid configuration value for %s: %s' %
(conf.MACHINE_TYPE_OPTION, machine_type))
if issubclass(self.machine_module.Stenotype,
plover.machine.base.SerialStenotypeBase):
serial_params = conf.get_serial_params(machine_type, self.config)
self.machine_init.update(serial_params.__dict__)
# Initialize the logger.
log_file = join(
conf.CONFIG_DIR,
self.config.get(conf.LOGGING_CONFIG_SECTION, conf.LOG_FILE_OPTION))
self.logger = logging.getLogger(conf.LOGGER_NAME)
self.logger.setLevel(logging.DEBUG)
handler = RotatingFileHandler(
log_file,
maxBytes=conf.LOG_MAX_BYTES,
backupCount=conf.LOG_COUNT,
)
handler.setFormatter(logging.Formatter(conf.LOG_FORMAT))
self.logger.addHandler(handler)
# Construct the stenography capture-translate-format-display pipeline.
self.machine = self.machine_module.Stenotype(**self.machine_init)
self.translator = translation.Translator()
self.translator.set_dictionary(user_dictionary)
self.formatter = formatting.Formatter()
# Add hooks for logging. Do this first so logs appear in order.
if self.config.getboolean(conf.LOGGING_CONFIG_SECTION,
conf.ENABLE_STROKE_LOGGING_OPTION):
self.machine.add_callback(self._log_stroke)
if self.config.getboolean(conf.LOGGING_CONFIG_SECTION,
conf.ENABLE_TRANSLATION_LOGGING_OPTION):
self.translator.add_listener(self._log_translation)
self.machine.add_callback(
lambda x: self.translator.translate(steno.Stroke(x)))
self.translator.add_listener(self.formatter.format)
# This seems like a reasonable number. If this becomes a problem it can
# be parameterized.
self.translator.set_min_undo_length(10)
keyboard_control = keyboardcontrol.KeyboardEmulation()
bag = SimpleNamespace()
bag.send_backspaces = keyboard_control.send_backspaces
bag.send_string = keyboard_control.send_string
bag.send_key_combination = keyboard_control.send_key_combination
bag.send_engine_command = engine_command_callback
self.full_output = bag
bag = SimpleNamespace()
bag.send_engine_command = engine_command_callback
self.command_only_output = bag
self.running_state = self.translator.get_state()
auto_start = self.config.getboolean(conf.MACHINE_CONFIG_SECTION,
conf.MACHINE_AUTO_START_OPTION)
self.set_is_running(auto_start)
# Start the machine monitoring for steno strokes.
self.machine.start_capture()
def _translator_machine_callback(self, s):
stroke = steno.Stroke(s)
self.translator.translate(stroke)
for listener in self.stroke_listeners:
listener(stroke)