def setDataFrame(self, dataFrame):
self.df = dataFrame
dataModel = DataFrameModel()
dataModel.setDataFrame(self.df)
self.dataModel = dataModel
self.dataListView.setModel(dataModel)
self.dataTableView.setViewModel(dataModel)
self.dataComboBox.setModel(dataModel)
# self.dataTableView.resizeColumnsToContents()
# create a simple item model for our choosing combobox
columnModel = QtGui.QStandardItemModel()
for column in self.df.columns:
columnModel.appendRow(QtGui.QStandardItem(column))
self.chooseColumnComboBox.setModel(columnModel)
self.tableViewColumnDtypes.setModel(dataModel.columnDtypeModel())
self.tableViewColumnDtypes.horizontalHeader().setDefaultSectionSize(
200)
self.tableViewColumnDtypes.setItemDelegateForColumn(
1, DtypeComboDelegate(self.tableViewColumnDtypes))
dataModel.changingDtypeFailed.connect(self.changeColumnValue)
def _previewFile(self):
"""Updates the preview widgets with new models for both tab panes.
"""
dataFrame = self._loadCSVDataFrame()
dataFrameModel = DataFrameModel(dataFrame)
dataFrameModel.enableEditing(True)
self._previewTableView.setModel(dataFrameModel)
columnModel = dataFrameModel.columnDtypeModel()
columnModel.changeFailed.connect(self.updateStatusBar)
self._datatypeTableView.setModel(columnModel)