97 lines
2.7 KiB
Python
97 lines
2.7 KiB
Python
from abc import ABC, abstractmethod
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from owrx.jsons import Encoder
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import json
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class Converter(ABC):
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@abstractmethod
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def convert_to_form(self, value):
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pass
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@abstractmethod
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def convert_from_form(self, value):
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pass
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class NullConverter(Converter):
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def convert_to_form(self, value):
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return value
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def convert_from_form(self, value):
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return value
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class OptionalConverter(Converter):
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"""
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Transforms a special form value to None
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The default is look for an empty string, but this can be used to adopt to other types.
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If the default is not found, the actual value is passed to the sub_converter for further transformation.
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useful for optional fields since None is not stored in the configuration
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"""
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def __init__(self, sub_converter: Converter = None, defaultFormValue=""):
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self.sub_converter = NullConverter() if sub_converter is None else sub_converter
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self.defaultFormValue = defaultFormValue
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def convert_to_form(self, value):
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return self.defaultFormValue if value is None else self.sub_converter.convert_to_form(value)
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def convert_from_form(self, value):
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return None if value == self.defaultFormValue else self.sub_converter.convert_from_form(value)
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class IntConverter(Converter):
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def convert_to_form(self, value):
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return str(value)
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def convert_from_form(self, value):
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return int(value)
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class FloatConverter(Converter):
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def convert_to_form(self, value):
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return str(value)
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def convert_from_form(self, value):
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return float(value)
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class EnumConverter(Converter):
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def __init__(self, enumCls):
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self.enumCls = enumCls
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def convert_to_form(self, value):
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return None if value is None else self.enumCls(value).name
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def convert_from_form(self, value):
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return self.enumCls[value].value
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class JsonConverter(Converter):
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def convert_to_form(self, value):
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return json.dumps(value, cls=Encoder)
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def convert_from_form(self, value):
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return json.loads(value)
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class WaterfallColorsConverter(Converter):
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def convert_to_form(self, value):
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if value is None:
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return ""
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return "\n".join("#{:06x}".format(v) for v in value)
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def convert_from_form(self, value):
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def parseString(s):
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try:
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if s.startswith("#"):
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return int(s[1:], 16)
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# int() with base 0 can accept "0x" prefixed hex strings, or int numbers
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return int(s, 0)
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except ValueError:
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return None
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# \r\n or \n? this should work with both.
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values = [parseString(v.strip("\r ")) for v in value.split("\n")]
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return [v for v in values if v is not None]
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