81 lines
1.9 KiB
Python
81 lines
1.9 KiB
Python
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""" ESC/POS Exceptions classes """
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import os
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class Error(Exception):
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""" Base class for ESC/POS errors """
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def __init__(self, msg, status=None):
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Exception.__init__(self)
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self.msg = msg
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self.resultcode = 1
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if status is not None:
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self.resultcode = status
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def __str__(self):
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return self.msg
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# Result/Exit codes
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# 0 = success
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# 10 = No Barcode type defined
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# 20 = Barcode size values are out of range
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# 30 = Barcode text not supplied
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# 40 = Image height is too large
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# 50 = No string supplied to be printed
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# 60 = Invalid pin to send Cash Drawer pulse
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class BarcodeTypeError(Error):
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def __init__(self, msg=""):
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Error.__init__(self, msg)
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self.msg = msg
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self.resultcode = 10
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def __str__(self):
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return "No Barcode type is defined"
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class BarcodeSizeError(Error):
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def __init__(self, msg=""):
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Error.__init__(self, msg)
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self.msg = msg
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self.resultcode = 20
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def __str__(self):
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return "Barcode size is out of range"
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class BarcodeCodeError(Error):
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def __init__(self, msg=""):
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Error.__init__(self, msg)
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self.msg = msg
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self.resultcode = 30
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def __str__(self):
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return "Code was not supplied"
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class ImageSizeError(Error):
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def __init__(self, msg=""):
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Error.__init__(self, msg)
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self.msg = msg
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self.resultcode = 40
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def __str__(self):
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return "Image height is longer than 255px and can't be printed"
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class TextError(Error):
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def __init__(self, msg=""):
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Error.__init__(self, msg)
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self.msg = msg
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self.resultcode = 50
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def __str__(self):
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return "Text string must be supplied to the text() method"
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class CashDrawerError(Error):
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def __init__(self, msg=""):
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Error.__init__(self, msg)
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self.msg = msg
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self.resultcode = 60
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def __str__(self):
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return "Valid pin must be set to send pulse"
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