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58 lines
1.3 KiB
58 lines
1.3 KiB
5 years ago
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from PyQt5.QtWidgets import QErrorMessage
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from voronoiview.mode import Mode
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class ExceededWindowBoundsError(Exception):
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pass
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class InvalidStateError(Exception):
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pass
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class InvalidModeError(Exception):
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"""
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An exception to specify an invalid mode has been provided.
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"""
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def __init__(self, mode):
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"""
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Initializes the InvalidMode exception with a
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mode.
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"""
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if not isinstance(mode, Mode):
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raise ValueError('Mode argument to InvalidMode must be of ' +
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' type mode')
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# Mode cases for invalid mode
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if mode == Mode.OFF:
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super().__init__('You must select a mode before continuing.')
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def handle_exceptions(func):
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"""
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A decorator designed to make exceptions thrown
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from a function easier to handle.
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The result will be that all exceptions coming from
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the decorated function will be caught and displayed
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as a error message box.
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Usage:
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@handle_exceptions
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def my_qt_func():
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raises SomeException
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"""
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def wrapped(*args, **kwargs):
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try:
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return func(*args, **kwargs)
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except Exception as e:
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error_dialog = QErrorMessage()
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error_dialog.showMessage(str(e))
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error_dialog.exec_()
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return wrapped
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