35 lines
914 B
Python
35 lines
914 B
Python
from struct import unpack
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from nmreval.io.nmrreader import NMRReader
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from ..Qt import QtCore
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class QNMRReader(QtCore.QObject):
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data_read = QtCore.pyqtSignal(list)
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file_ext = ['.nmr']
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def __init__(self):
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super().__init__()
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self._reader = NMRReader()
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def __call__(self, fname):
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with fname.open('rb') as fp:
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s16 = fp.read(16)
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# copied from whichdb (Python 2.7) to look for magic value of dbhash
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(magic,) = unpack("=l", s16[-4:])
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if magic in (0x00061561, 0x61150600):
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self._reader(fname, '-1')
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else:
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(magic,) = unpack('<16s', s16)
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if magic.startswith(b'NMREVAL'):
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self._reader(fname, str(magic[7:].rstrip(b'\x00'), 'utf8'))
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return self
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def exec(self):
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data = self._reader.make_data()
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self.data_read.emit([data])
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