# Copyright (c) 2013, System Engineering Software Society
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# * Neither the name of the System Engineering Software Society nor the
# names of its contributors may be used to endorse or promote products
# derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED.
# IN NO EVENT SHALL SYSTEM ENGINEERING SOFTWARE SOCIETY BE LIABLE FOR ANY
# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
import numpy as np
import datetime
import pandas as pd
from sylib.export import table as exporttable
from sympathy.api import qt2 as qt_compat
QtGui = qt_compat.import_module('QtGui')
QtWidgets = qt_compat.import_module('QtWidgets')
def table2xls(table, fq_outfilename, header):
table.to_excel(fq_outfilename, index=False, header=header)
class DataExportXLSWidget(QtWidgets.QWidget):
def __init__(self, parameter_root, input_list):
super(DataExportXLSWidget, self).__init__()
self._parameter_root = parameter_root
self._init_gui()
def _init_gui(self):
vlayout = QtWidgets.QVBoxLayout()
vlayout.addWidget(self._parameter_root['header'].gui())
self.setLayout(vlayout)
[docs]class DataExportXLS(exporttable.TableDataExporterBase):
"""Exporter for XLS files."""
EXPORTER_NAME = 'XLS'
FILENAME_EXTENSION = 'xls'
def __init__(self, parameters):
super(DataExportXLS, self).__init__(parameters)
if 'header' not in parameters:
parameters.set_boolean(
'header', value=True, label='Export header',
description='Export column names')
def parameter_view(self, input_list):
return DataExportXLSWidget(
self._parameters, input_list)
def export_data(self, in_sytable, fq_outfilename, progress=None):
"""Export Table to XLS."""
header = self._parameters['header'].value
df = in_sytable.to_dataframe()
for col_name in df:
column = df[col_name]
if column.dtype.kind == 'm':
# Timedeltas can't be written to excel in general, but if the
# delta is less than a day, it can be represented as a time.
df[col_name] = pd.Series(np.zeros_like(
column, 'datetime64[us]')) + column
elif column.dtype.kind == 'M':
# All dates before 1900-03-01 are ambiguous because
# of a bug in Excel which incorrectly treats the year 1900 as a
# leap year. So perhaps we shouldn't write any such dates to
# xls files? If we do write them, perhaps we should give a
# warning about the fact that those dates can be problematic?
df.loc[column < datetime.datetime(1900, 3, 1),
col_name] = np.nan
table2xls(df, fq_outfilename, header)
