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starting work to allow full resolution slicing

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This commit is contained in:
John Evans 2014-09-12 10:06:09 -04:00
commit 276a74ecaa
1 changed files with 37 additions and 28 deletions
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11
glymur/jp2k.py
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@ -770,10 +770,19 @@ class Jp2k(Jp2kBox):
else: else:
raise IndexError("Illegal syntax.") raise IndexError("Illegal syntax.")
if isinstance(pargs[0], tuple): if not isinstance(pargs[0], tuple):
msg = "Unexpected situation, slicing invoked, but not passed "
msg += "a slice or tuple."
raise RuntimeError(msg)
# Assuming tuple from now on.
ridx = pargs[0][0] ridx = pargs[0][0]
cidx = pargs[0][1] cidx = pargs[0][1]
if ((ridx.step is None) and (cidx.step is None)):
# Slicing with full resolution.
return self.read()[ridx, cidx]
if ((ridx.start is not None) or if ((ridx.start is not None) or
(ridx.stop is not None) or (ridx.stop is not None) or
(cidx.start is not None) or (cidx.start is not None) or