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aed3f7157c
liboperators/OperatorInvert.py: initial implementation. libroar/RoarCanvasCommandsOperators.py: adds OperatorInvert. assets/text/TODO: updated.
25 lines
666 B
Python
25 lines
666 B
Python
#!/usr/bin/env python3
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#
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# OperatorInvert.py
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# Copyright (c) 2018, 2019 Lucio Andrés Illanes Albornoz <lucio@lucioillanes.de>
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#
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from Operator import Operator
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class OperatorInvert(Operator):
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name = "Invert colours"
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#
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# apply(self, region)
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def apply(self, region):
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for numRow in range(len(region)):
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for numCol in range(len(region[numRow])):
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region[numRow][numCol][0:2] = [(~r & (16 - 1) if r > 0 else r) for r in region[numRow][numCol][0:2]]
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return region
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# __init__(self, *args): initialisation method
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def __init__(self, *args):
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pass
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# vim:expandtab foldmethod=marker sw=4 ts=4 tw=120
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