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https://github.com/qgis/QGIS.git
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b4ec9a3190
* [pyqgis] add QgsSettings.enumValue and flagValue to the bindings these are done in pure Python since no implementation is possible in SIP there is a dirty hack for flags since QgsMapLayerProxyModel.Filters.__qualname__ returns 'Filters' and not 'QgsMapLayerProxyModel.Filters' * fix typo
65 lines
2.8 KiB
Python
65 lines
2.8 KiB
Python
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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metaenum.py
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---------------------
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Date : May 2018
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Copyright : (C) 2018 by Denis Rouzaud
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Email : denis@opengis.ch
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***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************
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"""
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def metaEnumFromValue(enumValue, baseClass=None, raiseException=True):
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"""
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Returns the QMetaEnum for an enum value.
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The enum must have declared using the Q_ENUM macro
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:param enumValue: the enum value
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:param baseClass: the enum base class. If not given, it will try to get it by using `enumValue.__class__.baseClass`
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:param raiseException: if False, no exception will be raised and None will be return in case of failure
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:return: the QMetaEnum if it succeeds, None otherwise
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"""
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return metaEnumFromType(enumValue.__class__, baseClass, raiseException)
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def metaEnumFromType(enumClass, baseClass=None, raiseException=True):
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"""
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Returns the QMetaEnum for an enum type.
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The enum must have declared using the Q_ENUM macro
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:param enumClass: the enum class
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:param baseClass: the enum base class. If not given, it will try to get it by using `enumValue.__class__.baseClass`
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:param raiseException: if False, no exception will be raised and None will be return in case of failure
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:return: the QMetaEnum if it succeeds, None otherwise
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"""
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if enumClass == int:
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if raiseException:
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raise TypeError("enumClass is an int, while it should be an enum")
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else:
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return None
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if baseClass is None:
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try:
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baseClass = enumClass.baseClass
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return metaEnumFromType(enumClass, baseClass, raiseException)
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except AttributeError:
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if raiseException:
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raise ValueError("Enum type does not implement baseClass method. Provide the base class as argument.")
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try:
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idx = baseClass.staticMetaObject.indexOfEnumerator(enumClass.__name__)
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meta_enum = baseClass.staticMetaObject.enumerator(idx)
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except AttributeError:
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if raiseException:
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raise TypeError("could not get the metaEnum for {}".format(enumClass.__name__))
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meta_enum = None
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return meta_enum
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